Class for reconstruction short-lived particles. More...

#include <KFParticle/blob/master/KFParticle/KFParticleFinder.h>

Collaboration diagram for KFParticleFinder:

Public Member Functions
	KFParticleFinder ()

	~KFParticleFinder ()

void	Init (int nPV)

void	SetNThreads (short int n)
	Sets the number of threads to by run in parallel. Currently not used.

void	FindParticles (KFPTrackVector vRTracks, kfvector_float ChiToPrimVtx, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, int nPV)

void	ExtrapolateToPV (std::vector< KFParticle > &vParticles, KFParticleSIMD &PrimVtx)

void	ConstructV0 (KFPTrackVector vTracks, int iTrTypePos, int iTrTypeNeg, uint_v &idPosDaughters, uint_v &idNegDaughters, int_v &daughterPosPDG, int_v &daughterNegPDG, KFParticleSIMD &mother, KFParticle &mother_temp, const unsigned short NTracks, kfvector_floatv &l, kfvector_floatv &dl, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float cuts, const int_v &pvIndex, const float secCuts, const float_v &massMotherPDG, const float_v &massMotherPDGSigma, KFParticleSIMD &motherPrimSecCand, int &nPrimSecCand, std::vector< std::vector< KFParticle > > vMotherPrim=0, std::vector< KFParticle > *vMotherSec=0) __attribute__((always_inline))

void	SaveV0PrimSecCand (KFParticleSIMD &mother, int &NParticles, KFParticle &mother_temp, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float secCuts, std::vector< std::vector< KFParticle > > vMotherPrim, std::vector< KFParticle > *vMotherSec)

void	ConstructTrackV0Cand (KFPTrackVector &vTracks, uint_v &idTracks, int_v &trackPDG, KFParticle vV0[], KFParticleSIMD &mother, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &motherTopo, KFParticle &mother_temp, const unsigned short nElements, kfvector_floatv &l, kfvector_floatv &dl, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float_v cuts, const int_v &pvIndex, const float_v &massMotherPDG, const float_v &massMotherPDGSigma, std::vector< std::vector< KFParticle > > vMotherPrim, std::vector< KFParticle > vMotherSec)

void	Find2DaughterDecay (KFPTrackVector vTracks, kfvector_float ChiToPrimVtx, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float cuts, const float secCuts, std::vector< std::vector< KFParticle > > vMotherPrim, std::vector< KFParticle > vMotherSec)

void	ConstructPrimaryBG (KFPTrackVector vTracks, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float cuts, const float secCuts, std::vector< std::vector< KFParticle > > vMotherPrim, std::vector< KFParticle > *vMotherSec)

void	NeutralDaughterDecay (KFPTrackVector *vTracks, std::vector< KFParticle > &Particles)

void	FindTrackV0Decay (std::vector< KFParticle > &vV0, const int V0PDG, KFPTrackVector &vTracks, const int q, const int firstTrack, const int lastTrack, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, int v0PVIndex=-1, kfvector_float ChiToPrimVtx=0, std::vector< std::vector< KFParticle > > vMotherPrim=0, std::vector< KFParticle > *vMotherSec=0)

void	SelectParticles (std::vector< KFParticle > &Particles, std::vector< KFParticle > &vCandidates, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float &cutChi2Topo, const float &cutLdL, const float &mass, const float &massErr, const float &massCut)

void	CombinePartPart (std::vector< KFParticle > &particles1, std::vector< KFParticle > &particles2, std::vector< KFParticle > &Particles, std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &PrimVtx, const float cuts, int iPV, const int MotherPDG, bool isSameInputPart=0, bool saveOnlyPrimary=1, std::vector< std::vector< KFParticle > > vMotherPrim=0, std::vector< KFParticle > *vMotherSec=0, float massMotherPDG=0.f, float massMotherPDGSigma=0.f)

void	SetEmcClusters (KFPEmcCluster *clusters)
	Set a pointer to the gamma-clusters from the electromagnetic calorimeter.

void	SetMixedEventAnalysis ()
	Switch KFParticleFinder to the mixed event mode.

const std::vector< KFParticle > *	GetSecondaryCandidates () const

const std::vector< KFParticle > &	GetSecondaryK0 () const

const std::vector< KFParticle > &	GetSecondaryLambda () const

const std::vector< KFParticle > &	GetSecondaryAntiLambda () const

const std::vector< KFParticle > &	GetSecondaryGamma () const

const std::vector< KFParticle > &	GetSecondaryPi0 () const

const std::vector< std::vector < KFParticle > > *	GetPrimaryCandidates () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryK0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryAntiLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryGamma () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryPi0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryAntiXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryOmega () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryAntiOmega () const

const std::vector< std::vector < KFParticle > > *	GetPrimaryTopoCandidates () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoK0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoAntiLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoGamma () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoPi0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoAntiXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoOmega () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoAntiOmega () const

const std::vector< std::vector < KFParticle > > *	GetPrimaryTopoMassCandidates () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassK0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassAntiLambda () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassGamma () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassPi0 () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassAntiXi () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassOmega () const

const std::vector< std::vector < KFParticle > > &	GetPrimaryTopoMassAntiOmega () const

void	AddCandidate (const KFParticle &candidate, int iPV=-1)

void	SetNPV (int nPV)

void	SetMaxDistanceBetweenParticlesCut (float cut)
	Sets cut on the distance between secondary tracks at the DCA point.

void	SetLCut (float cut)
	Sets cut on the distance to the primary vertex from the decay vertex.

void	SetChiPrimaryCut2D (float cut)
	Sets cut on $\chi^2_{prim}$ of each track for 2-daughter decays.

void	SetChi2Cut2D (float cut)
	Sets cut on $\chi^2_{geo}$ for 2-daughter decays.

void	SetLdLCut2D (float cut)
	Sets cut on $l/\Delta l$ for 2-daughter decays.

void	SetSecondaryCuts (const float sigmaMass=3.f, const float chi2Topo=5.f, const float ldl=10.f)
	Sets cuts on selection of secondary and primary candidates: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .

void	SetLdLCutXiOmega (float cut)
	Sets $l/\Delta l$ cut for $\Xi$ and $\Omega$ .

void	SetChi2TopoCutXiOmega (float cut)
	Sets $\chi^2_{topo}$ cut for $\Xi$ and $\Omega$ .

void	SetChi2CutXiOmega (float cut)
	Sets $\chi^2_{geo}$ cut for $\Xi$ and $\Omega$ .

void	SetChi2TopoCutResonances (float cut)
	Sets $\chi^2_{topo}$ cut for resonances.

void	SetChi2CutResonances (float cut)
	Sets $\chi^2_{geo}$ cut for resonances.

void	SetPtCutLMVM (float cut)
	Sets the cut on transverse momentum of each daughter track of low mass vector mesons.

void	SetPCutLMVM (float cut)
	Sets the cut on momentum of each daughter track of low mass vector mesons in dimuon channel.

void	SetPtCutJPsi (float cut)
	Sets the cut on transverse momentum of each daughter track of $J/\psi$ .

void	SetPtCutCharm (float cut)
	Sets the cut on transverse momentum of each daughter track of open charm particles.

void	SetChiPrimaryCutCharm (float cut)
	Sets cut on $\chi^2_{prim}$ of each track for open charm particles.

void	SetLdLCutCharmManybodyDecays (float cut)
	Sets $l/\Delta l$ cut for open charm with >=3 daughters.

void	SetChi2TopoCutCharmManybodyDecays (float cut)
	Sets $\chi^2_{topo}$ cut for open charm with >=3 daughters.

void	SetChi2CutCharmManybodyDecays (float cut)
	Sets $\chi^2_{geo}$ cut for open charm with >=3 daughters.

void	SetLdLCutCharm2D (float cut)
	Sets $l/\Delta l$ cut for open charm with 2 daughters.

void	SetChi2TopoCutCharm2D (float cut)
	Sets $\chi^2_{topo}$ cut for open charm with 2 daughters.

void	SetChi2CutCharm2D (float cut)
	Sets $\chi^2_{geo}$ cut for open charm with 2 daughters.

void	CopyCuts (const KFParticleFinder *finder)

const float	GetMaxDistanceBetweenParticlesCut () const
	Returns cut on the distance between secondary tracks at the DCA point.

const float	GetLCut () const
	Returns cut on the distance to the primary vertex from the decay vertex.

const float	GetChiPrimaryCut2D () const
	Returns cut on $\chi^2_{prim}$ of each track for 2-daughter decays.

const float	GetChi2Cut2D () const
	Returns cut on $\chi^2_{geo}$ for 2-daughter decays.

const float	GetLdLCut2D () const
	Returns cut on $l/\Delta l$ for 2-daughter decays.

const float	GetSecondarySigmaMassCut () const
	Returns $\sigma_{M}$ cut for selection of primary and secondary candidates.

const float	GetSecondaryChi2TopoCut () const
	Returns $\chi^2_{topo}$ cut for selection of primary and secondary candidates.

const float	GetSecondaryLdLCut () const
	Returns $l/\Delta l$ cut for selection of primary and secondary candidates.

const float	GetLdLCutXiOmega () const
	Returns $l/\Delta l$ cut for $\Xi$ and $\Omega$ .

const float	GetChi2TopoCutXiOmega () const
	Returns $\chi^2_{topo}$ cut for $\Xi$ and $\Omega$ .

const float	GetChi2CutXiOmega () const
	Returns $\chi^2_{geo}$ cut for $\Xi$ and $\Omega$ .

const float	GetChi2TopoCutResonances () const
	Returns $\chi^2_{topo}$ cut for resonances.

const float	GetChi2CutResonances () const
	Returns $\chi^2_{geo}$ cut for resonances.

const float	GetPtCutLMVM () const
	Returns cut on transverse momentum of each daughter track of low mass vector mesons.

const float	GetPCutLMVM () const
	Returns cut on momentum of each daughter track of low mass vector mesons in dimuon channel.

const float	GetPtCutJPsi () const
	Returns cut on transverse momentum of each daughter track of $J/\psi$ .

const float	GetPtCutCharm () const
	Returns the cut on transverse momentum of each daughter track of open charm particles.

const float	GetChiPrimaryCutCharm () const
	Returns cut on $\chi^2_{prim}$ of each track for open charm particles.

const float	GetLdLCutCharmManybodyDecays () const
	Returns $l/\Delta l$ cut for open charm with >=3 daughters.

const float	GetChi2TopoCutCharmManybodyDecays () const
	Returns $\chi^2_{topo}$ cut for open charm with >=3 daughters.

const float	GetChi2CutCharmManybodyDecays () const
	Returns $\chi^2_{geo}$ cut for open charm with >=3 daughters.

const float	GetLdLCutCharm2D () const
	Returns $l/\Delta l$ cut for open charm with 2 daughters.

const float	GetChi2TopoCutCharm2D () const
	Returns $\chi^2_{topo}$ cut for open charm with 2 daughters.

const float	GetChi2CutCharm2D () const
	Returns $\chi^2_{geo}$ cut for open charm with 2 daughters.

void	AddDecayToReconstructionList (int pdg)

const std::map< int, bool >	GetReconstructionList () const
	Returns list of decays to be reconstructed.

void	SetReconstructionList (const std::map< int, bool > &decays)
	Set enitre reconstruction list.

Static Public Member Functions
static int	GetNSecondarySets ()

static int	GetNPrimarySets ()

Private Member Functions
	KFParticleFinder (const KFParticleFinder &)
	Copying is disabled for this class.

KFParticleFinder &	operator= (const KFParticleFinder &)
	Copying is disabled for this class.

Private Attributes
short int	fNPV
	Number of primary vertex candidates in the event.

short int	fNThreads
	Number of threads to be run in parallel. Currently is not used.

float	fDistanceCut
	Cut on the distance between secondary tracks at the DCA point, is soft and used to speed up the algorithm only.

float	fLCut
	Cut on the distance to the primary vertex from the decay vertex. Is applied to , $\Lambda$ , $\Xi$ , $\Omega$ , hypernuclei and dibaryons.

float	fCuts2D [3]
	Cuts on 2-daughter decays: $\chi^2_{prim}$ , $\chi^2_{geo}$ , $l/\Delta l$ .

float	fSecCuts [3]
	Cuts to select secondary and primary particle candidates: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .

float	fCutsTrackV0 [3][3]
	Cuts on the combination of track and short-lived particle candidate: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ . Three sets of cuts are defined: 1) for $\Xi$ and $\Omega$ , 2) for hypernuclei and open charm, 3) for resonances.

float	fCutsPartPart [2][3]
	Cuts on the combination of two short-lived particle candidates: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ . Two sets are defined: 1) for particles that fly away from the primary vertex and 2) for resonances.

float	fCutCharmPt
	Cut on transverse momentum of the track for open charm reconstruction.

float	fCutCharmChiPrim
	Cut on the $\chi^2_{prim}$ deviation of the track from the primary vertex for open charm reconstruction.

float	fCutsCharm [3]
	Cuts on reconstructed 2-daughter charm candidates: $\chi^2_{geo}$ , $l/\Delta l$ , $\chi^2_{topo}$ .

float	fCutLVMPt
	Cut on transverse momentum of daughter tracks for low mass vector mesons.

float	fCutLVMP
	Cut on momentum of low mass vector mesons in dimuon channel.

float	fCutJPsiPt
	Cut on transverse momentum of daughter tracks for $J/\psi$ .

std::vector< KFParticle >	fD0
	Vector with temporary D0->K-pi+ candidates.

std::vector< KFParticle >	fD0bar
	Vector with temporary D0_bar->K+pi- candidates.

std::vector< KFParticle >	fD04
	Vector with temporary D0->K-pi+pi+pi- candidates.

std::vector< KFParticle >	fD04bar
	Vector with temporary D0_bar->K+pi+pi-pi- candidates.

std::vector< KFParticle >	fD0KK
	Vector with temporary D0->K+K- candidates.

std::vector< KFParticle >	fD0pipi
	Vector with temporary D0->pi+pi- candidates.

std::vector< KFParticle >	fDPlus
	Vector with temporary D+->K-pi+pi+ candidates.

std::vector< KFParticle >	fDMinus
	Vector with temporary D–>K+pi-pi- candidates.

std::vector< KFParticle >	fDPlus3Pi
	Vector with temporary D+->pi+pi+pi- candidates.

std::vector< KFParticle >	fDMinus3Pi
	Vector with temporary D–>pi+pi-pi- candidates.

std::vector< KFParticle >	fDsPlusK2Pi
	Vector with temporary Ds+->K+pi+pi- candidates.

std::vector< KFParticle >	fDsMinusK2Pi
	Vector with temporary Ds–>K-pi+pi- candidates.

std::vector< KFParticle >	fLcPlusP2Pi
	Vector with temporary Lambda_c->p pi+pi- candidates.

std::vector< KFParticle >	fLcMinusP2Pi
	Vector with temporary Lambda_c_bar->p-pi+pi- candidates.

std::vector< KFParticle >	fLPi
	Temporary Lambda pi+ combinations.

std::vector< int >	fLPiPIndex
	Index of the proton in Labmda for Lambda pi+ combinations.

std::vector< KFParticle >	fHe3Pi
	Temporary He3+ pi- combinations.

std::vector< KFParticle >	fHe3PiBar
	Temporary He3- pi+ combinations.

std::vector< KFParticle >	fHe4Pi
	Temporary He4+ pi- combinations.

std::vector< KFParticle >	fHe4PiBar
	Temporary He4- pi+ combinations.

std::vector< KFParticle >	fHe4L
	Vector with temporary He4_Lambda->He3 p pi- candidates.

std::vector< KFParticle >	fHe5L
	Vector with temporary He4_Lambda->He4 p pi- candidates.

std::vector< KFParticle >	fLLn
	Vector with temporary H3_Lambda pi- candidates.

std::vector< KFParticle >	fH5LL
	Vector with temporary H5_LL->He5_Lambda pi- candidates.

std::vector< KFParticle >	fSecCandidates [fNSecCandidatesSets]
	Array of vectors with secondary candidates: 0) , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ .

std::vector< std::vector < KFParticle > >	fPrimCandidates [fNPrimCandidatesSets]
	Array of vectors with primary candidates for each primary vertex: 0) , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ , 9) $\Xi^{0}$ , 10) $\overline{\Xi}^{0}$ .

std::vector< std::vector < KFParticle > >	fPrimCandidatesTopo [fNPrimCandidatesTopoSets]
	Array of vectors with primary candidates for each primary vertex with a topological constraint set: 0) , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ .

std::vector< std::vector < KFParticle > >	fPrimCandidatesTopoMass [fNPrimCandidatesTopoSets]
	Array of vectors with primary candidates for each primary vertex with a topological and mass constraints set: 0) , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ .

KFPEmcCluster *	fEmcClusters
	Pointer to the input gamma-clusters from the electromagnetic calorimeter.

bool	fMixedEventAnalysis
	Flag defines if the mixed event analysis is run. In mixed event mode limited number of decays is reconstructed.

std::map< int, bool >	fDecayReconstructionList
	Map defines if the reconstruction of the decay with a certain PDG hypothesis should be run. If the map is empty - all decays are reconstructed. If at least one decay is added - only those decays will be reconstructed which are specified in the list.

Static Private Attributes
static const int	fNSecCandidatesSets = 5
	Number of sets of secondary particle candidates.

static const int	fNPrimCandidatesSets = 11
	Number of sets of primary particle candidates.

static const int	fNPrimCandidatesTopoSets = 9
	Number of sets of primary particle candidates with topological constraint.

Detailed Description

Class for reconstruction short-lived particles.

Author: I.Kisel, M.Zyzak

Date: 05.02.2019

Version: 1.0

The class reconstructs short-lived particles by combining long-lived and already reconstructed short-lived particles. As an input it requires tracks and primary vertices. All short-lived particles are stored to one array. The default values of cuts are initialised in the constructor.

Definition at line 47 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 47 of file KFParticleFinder.h

Constructor & Destructor Documentation

KFParticleFinder::KFParticleFinder ( )

The default constructor. Initialises all cuts to the default values.

Definition at line 30 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 30 of file KFParticleFinder.cxx

References fCutCharmChiPrim, fCuts2D, fCutsCharm, fCutsPartPart, fCutsTrackV0, and fSecCuts.

KFParticleFinder::~KFParticleFinder ( )

inline

Definition at line 52 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 52 of file KFParticleFinder.h

KFParticleFinder::KFParticleFinder ( const KFParticleFinder & )

private

Copying is disabled for this class.

Member Function Documentation

void KFParticleFinder::AddCandidate	(	const KFParticle &	candidate,
		int	iPV = `-1`
	)

Adds an externally found particle to either set of secondary or primary candidates:
1) if iPV is negative the candidate is stored to KFParticleFinder::fSecCandidates;
2) if iPV is not negative and smaller then the set number of primary vertices and NDF=2 the candidate is stored to KFParticleFinder::fPrimCandidates;
3) if iPV is not negative and smaller then the set number of primary vertices and NDF=3 the candidate is stored to KFParticleFinder::fPrimCandidatesTopo;
4) if iPV is not negative and smaller then the set number of primary vertices and NDF=4 the candidate is stored to KFParticleFinder::fPrimCandidatesTopoMass.
Only those particles will be stored which have accepted PDG. Please check the documentation of the corresponding vectors for the list of particles.

Parameters

[in]	candidate	- candidate to be added
[in]	iPV	- index of the associated PV

Definition at line 3055 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 3055 of file KFParticleFinder.cxx

References fNPV, fPrimCandidates, fPrimCandidatesTopo, fPrimCandidatesTopoMass, fSecCandidates, KFParticleBase::GetPDG(), and KFParticle::NDF().

Referenced by KFParticleTopoReconstructor::AddCandidate().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::AddDecayToReconstructionList ( int pdg )

inline

Add decay to the reconstruction list. If at least one is added - only those channels are considered which are in the list. Otherwise all decays are reconstructed.

Parameters

[in] pdg - PDG code of the decay which should be reconstructed

Definition at line 378 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 378 of file KFParticleFinder.h

References fDecayReconstructionList, and pdg.

void KFParticleFinder::CombinePartPart	(	std::vector< KFParticle > &	particles1,
		std::vector< KFParticle > &	particles2,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float *	cuts,
		int	iPV,
		const int	MotherPDG,
		bool	isSameInputPart = `0`,
		bool	saveOnlyPrimary = `1`,
		std::vector< std::vector< KFParticle > > *	vMotherPrim = `0`,
		std::vector< KFParticle > *	vMotherSec = `0`,
		float	massMotherPDG = `0.f`,
		float	massMotherPDGSigma = `0.f`
	)

Combines two already constructed candidates into a new particle.

Parameters

[in]	particles1	- vector with the first set of particles.
[in]	particles2	- vector with the second set of particles.
[out]	Particles	- output vector with particles.
[in]	PrimVtx	- vector with primary vertices.
[in]	cuts	- set of cuts: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ .
[in]	iPV	- index of the primary vertex for reconstruction of resonances. Tracks should come from the same vertex.
[in]	MotherPDG	- PDG hypothesis of the constructed mother particles.
[in]	isSameInputPart	- shows if vectors of input particles are the same to avoid double reconstruction of the same candidate.
[in]	saveOnlyPrimary	- defines if only primary particles should be searched and $\chi^2_{topo}$ should be applied.
[out]	vMotherPrim	- array with output primary candidates if any. If pointer is set to NULL - not filled.
[out]	vMotherSec	- array with output secondary candidates if any. If pointer is set to NULL - not filled.
[in]	massMotherPDG	- PDG table mass for the mother particle, is used for selection of primary and secondary candidates.
[in]	massMotherPDGSigma	- sigma of the peak width, is used for selection of primary and secondary candidates.

Definition at line 2526 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 2526 of file KFParticleFinder.cxx

References Acts::active, KFParticleBase::AddDaughterId(), KFParticleSIMD::Chi2(), KFParticleBase::CleanDaughtersId(), KFParticleSIMD::Construct(), KFParticleBase::DaughterIds(), KFParticleBaseSIMD::DaughterIds(), DaughterIds(), f, fDecayReconstructionList, fLCut, float_vLen, fNPV, KFParticleSIMD::GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetKFParticle(), KFParticle::GetMass(), KFParticleSIMD::GetNDF(), Id(), testSigmaEff::l1, mass, KFParticleBase::NDaughters(), KFParticleSIMD::NDF(), KFParticleBaseSIMD::PDG(), KFParticleBase::SetId(), KFParticleBase::SetNonlinearMassConstraint(), KFParticleBaseSIMD::SetPDG(), and KFParticleBaseSIMD::SetProductionVertex().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::ConstructPrimaryBG	(	KFPTrackVector *	vTracks,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float *	cuts,
		const float *	secCuts,
		std::vector< std::vector< KFParticle > > *	vMotherPrim,
		std::vector< KFParticle > *	vMotherSec
	)

Constructs same-sign background candidates for 2-daughter resonances.

Parameters

[in]	vRTracks	- pointer to the array with vectors of tracks: 0) secondary positive at the first hit position; 1) secondary negative at the first hit position; 2) primary positive at the first hit position; 3) primary negative at the first hit position; 4) secondary positive at the last hit position; 5) secondary negative at the last hit position; 6) primary positive at the last hit position; 7) primary negative at the last hit position.
[out]	Particles	- the output array with the reconstructed particle-candidates.
[in]	PrimVtx	- vector with primary vertices.
[in]	cuts	- set of cuts: $\chi^2_{prim}$ , $\chi^2_{geo}$ , $l/\Delta l$ .
[in]	secCuts	- cuts to select primary and secondary candidates from the reconstructed set: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .
[out]	vMotherPrim	- array with output primary candidates. Is provided for consistency with KFParticleFinder::ConstructV0().
[out]	vMotherSec	- array with output secondary candidates. Is provided for consistency with KFParticleFinder::ConstructV0().

Definition at line 1422 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 1422 of file KFParticleFinder.cxx

References Acts::active, ConstructV0(), fDecayReconstructionList, KFPTrackVector::FirstPion(), float_vLen, fNPV, KFParticleDatabase::GetMotherMass(), KFParticleDatabase::Instance(), KFPTrackVector::LastProton(), KFPTrackVector::PDG(), KFPTrackVector::PVIndex(), SaveV0PrimSecCand(), KFParticleBaseSIMD::SetPDG(), and KFPTrackVector::Size().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::ConstructTrackV0Cand	(	KFPTrackVector &	vTracks,
		uint_v &	idTracks,
		int_v &	trackPDG,
		KFParticle *	vV0[],
		KFParticleSIMD &	mother,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	motherTopo,
		KFParticle &	mother_temp,
		const unsigned short	nElements,
		kfvector_floatv &	l,
		kfvector_floatv &	dl,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float_v *	cuts,
		const int_v &	pvIndex,
		const float_v &	massMotherPDG,
		const float_v &	massMotherPDGSigma,
		std::vector< std::vector< KFParticle > > *	vMotherPrim,
		std::vector< KFParticle > *	vMotherSec
	)

Constructs a candidate from a track and already reconstructed particle candidate.

Parameters

[in]	vTracks	- vector with tracks.
[in]	idTracks	- indices of particles from the vector of tracks.
[in]	trackPDG	- PDG hypothesis of the SIMD vector of tracks.
[in]	vV0	- array with already reconstructed particle candidate with the size of SIMD vector.
[out]	mother	- constructed 2-daughter SIMD-candidate.
[in]	motherTopo	- preallocated SIMD vector for topological constraint for better performance.
[in]	mother_temp	- temporary object to extract KFParticle from constructed KFParticleSIMD mother. Preallocated for better performance.
[in]	nElements	- number of elements in each SIMD vector.
[in]	l	- SIMD-vector with extracted distance to the primary vertex. Is preallocated for better performance.
[in]	dl	- SIMD-vector with extracted error of distance to the primary vertex. Is preallocated for better performance.
[out]	Particles	- the output array with the reconstructed particle-candidates.
[in]	PrimVtx	- array with primary vertices.
[in]	cuts	- set of cuts: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ .
[in]	pvIndex	- index of the primary vertex for reconstruction of resonances. Tracks should come from the same vertex. in case of other particles the value should be "-1".
[in]	massMotherPDG	- PDG table mass for the mother particle, is used for selection of primary and secondary candidates.
[in]	massMotherPDGSigma	- sigma of the peak width, is used for selection of primary and secondary candidates.
[out]	vMotherPrim	- array with output primary candidates if any. If pointer is set to NULL - not filled.
[out]	vMotherSec	- array with output secondary candidates if any. If pointer is set to NULL - not filled.

Definition at line 1594 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 1594 of file KFParticleFinder.cxx

Referenced by FindTrackV0Decay().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::ConstructV0	(	KFPTrackVector *	vTracks,
		int	iTrTypePos,
		int	iTrTypeNeg,
		uint_v &	idPosDaughters,
		uint_v &	idNegDaughters,
		int_v &	daughterPosPDG,
		int_v &	daughterNegPDG,
		KFParticleSIMD &	mother,
		KFParticle &	mother_temp,
		const unsigned short	NTracks,
		kfvector_floatv &	l,
		kfvector_floatv &	dl,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float *	cuts,
		const int_v &	pvIndex,
		const float *	secCuts,
		const float_v &	massMotherPDG,
		const float_v &	massMotherPDGSigma,
		KFParticleSIMD &	motherPrimSecCand,
		int &	nPrimSecCand,
		std::vector< std::vector< KFParticle > > *	vMotherPrim = `0`,
		std::vector< KFParticle > *	vMotherSec = `0`
	)

inline

Combines two SIMD vectors of particles into 2-daughter candidate.

Parameters

[in]	vRTracks	- pointer to the array with vectors of tracks: 0) secondary positive at the first hit position; 1) secondary negative at the first hit position; 2) primary positive at the first hit position; 3) primary negative at the first hit position; 4) secondary positive at the last hit position; 5) secondary negative at the last hit position; 6) primary positive at the last hit position; 7) primary negative at the last hit position.
[in]	iTrTypePos	- index of the first vector with tracks in the vTracks array.
[in]	iTrTypeNeg	- index of the second vector with tracks in the vTracks array.
[in]	idPosDaughters	- indices of particles from the first vector of tracks.
[in]	idNegDaughters	- indices of particles from the second vector of tracks.
[in]	daughterPosPDG	- PDG hypothesis of the first SIMD vector of tracks.
[in]	daughterNegPDG	- PDG hypothesis of the second SIMD vector of tracks.
[out]	mother	- constructed 2-daughter SIMD-candidate.
[in]	mother_temp	- temporary object to extract KFParticle from constructed KFParticleSIMD mother. Preallocated for better performance.
[in]	NTracks	- number of tracks in each SIMD vector.
[in]	l	- SIMD-vector with extracted distance to the primary vertex. Is preallocated for better performance.
[in]	dl	- SIMD-vector with extracted error of distance to the primary vertex. Is preallocated for better performance.
[out]	Particles	- the output array with the reconstructed particle-candidates.
[in]	PrimVtx	- array with primary vertices.
[in]	cuts	- set of cuts: $\chi^2_{prim}$ , $\chi^2_{geo}$ , $l/\Delta l$ .
[in]	pvIndex	- index of the primary vertex for reconstruction of resonances. Tracks should come from the same vertex. in case of other particles the value should be "-1".
[in]	secCuts	- cuts to select primary and secondary candidates from the reconstructed set: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .
[in]	massMotherPDG	- PDG table mass for the mother particle, is used for selection of primary and secondary candidates.
[in]	massMotherPDGSigma	- sigma of the peak width, is used for selection of primary and secondary candidates.
[out]	motherPrimSecCand	- a SIMD-particle with possible primary and secondary candidates.
[out]	nPrimSecCand	- number of possible primary and secondary candidates. Can be "0" if no of them are found.
[out]	vMotherPrim	- array with output primary candidates if any.
[out]	vMotherSec	- array with output secondary candidates if any.

Definition at line 639 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 639 of file KFParticleFinder.cxx

References KFParticleSIMD::Chi2(), KFParticleSIMD::Construct(), fCutJPsiPt, fCutLVMPt, fCutsCharm, fD0, fD0bar, fD0KK, fD0pipi, fHe3Pi, fHe3PiBar, fHe4Pi, fHe4PiBar, fLCut, float_vLen, fNPV, KFParticleSIMD::GetChi2(), KFParticleSIMD::GetDecayLength(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetDStoParticle(), KFParticleSIMD::GetKFParticle(), KFParticleSIMD::GetMass(), Id(), mass, KFParticleSIMD::NDF(), KFParticleBaseSIMD::PDG(), KFParticleSIMD::Px(), KFParticleSIMD::Py(), SaveV0PrimSecCand(), KFParticleBase::SetId(), KFParticleBaseSIMD::SetId(), KFParticleSIMD::SetOneEntry(), KFParticleBase::SetPDG(), KFParticleBaseSIMD::SetProductionVertex(), and KFParticleBaseSIMD::TransportToDS().

Referenced by ConstructPrimaryBG(), and Find2DaughterDecay().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::CopyCuts ( const KFParticleFinder * finder )

inline

Copies all cuts from the external KFParticleFinder "finder" to the current object.

Parameters

[in] finder - constant pointer to the external KFParticleFinder object

Definition at line 315 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 315 of file KFParticleFinder.h

References fCutCharmChiPrim, fCutCharmPt, fCutJPsiPt, fCutLVMP, fCutLVMPt, fCuts2D, fCutsCharm, fCutsPartPart, fCutsTrackV0, fDistanceCut, fLCut, and fSecCuts.

Referenced by KFParticleTopoReconstructor::CopyCuts().

Here is the caller graph for this function:

void KFParticleFinder::ExtrapolateToPV	(	std::vector< KFParticle > &	vParticles,
		KFParticleSIMD &	PrimVtx
	)

Extrapolates all particles from the input vector to the DCA point with the primary vertex.

Parameters

[in,out]	vParticles	- array of particles to be transported.
[in]	PrimVtx	- the primary vertex, where particles should be transported.

Definition at line 606 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 606 of file KFParticleFinder.cxx

References float_vLen, KFParticleSIMD::GetKFParticle(), KFParticleSIMD::Parameters(), Acts::Test::tmp(), and KFParticleSIMD::TransportToPoint().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::Find2DaughterDecay	(	KFPTrackVector *	vTracks,
		kfvector_float *	ChiToPrimVtx,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float *	cuts,
		const float *	secCuts,
		std::vector< std::vector< KFParticle > > *	vMotherPrim,
		std::vector< KFParticle > *	vMotherSec
	)

Reconstructs all 2-daughter decays.

Parameters

[in]	vRTracks	- pointer to the array with vectors of tracks: 0) secondary positive at the first hit position; 1) secondary negative at the first hit position; 2) primary positive at the first hit position; 3) primary negative at the first hit position; 4) secondary positive at the last hit position; 5) secondary negative at the last hit position; 6) primary positive at the last hit position; 7) primary negative at the last hit position.
[in]	ChiToPrimVtx	- arrays with vectors of the $\chi^2_{prim}$ deviations for track vectors 1) and 2).
[out]	Particles	- output vector with particles.
[in]	PrimVtx	- vector with primary vertices.
[in]	cuts	- set of cuts: $\chi^2_{prim}$ , $\chi^2_{geo}$ , $l/\Delta l$ .
[in]	secCuts	- cuts to select primary and secondary candidates from the reconstructed set: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .
[out]	vMotherPrim	- array with output primary candidates.
[out]	vMotherSec	- array with output secondary candidates.

Definition at line 972 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 972 of file KFParticleFinder.cxx

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::FindParticles	(	KFPTrackVector *	vRTracks,
		kfvector_float *	ChiToPrimVtx,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		int	nPV
	)

The main interface which runs reconstruction of short-lived particles:
1) a new event is initialised;
2) long-lived particles formed from tracks are stored to the output array "Particles";
3) 2-daughter channels are reconstructed (KFParticleFinder::Find2DaughterDecay());
4) the 2-daughter same-signed background is collected for resonances (KFParticleFinder::ConstructPrimaryBG());
5) found primary candidates of $K_s^0$ , $\Lambda$ , $\overline{\Lambda}$ and $\gamma$ are transported to the point of the closest approach with the corresponding primary vertex (KFParticleFinder::ExtrapolateToPV());
6) reconstruction with the missing mass method (KFParticleFinder::NeutralDaughterDecay());
7) all other decays are reconstructed one after another.
If analysis is run in the mixed event mode only steps 1) and 2) are performed.

Parameters

[in]	vRTracks	- pointer to the array with vectors of tracks: 0) secondary positive at the first hit position; 1) secondary negative at the first hit position; 2) primary positive at the first hit position; 3) primary negative at the first hit position; 4) secondary positive at the last hit position; 5) secondary negative at the last hit position; 6) primary positive at the last hit position; 7) primary negative at the last hit position.
[in]	ChiToPrimVtx	- arrays with vectors of the $\chi^2_{prim}$ deviations for track vectors 1) and 2).
[out]	Particles	- output vector with particles.
[in]	PrimVtx	- vector with primary vertices.
[in]	nPV	- number of the input primary vertices.

Definition at line 131 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 131 of file KFParticleFinder.cxx

Referenced by KFParticleTopoReconstructor::ReconstructParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::FindTrackV0Decay	(	std::vector< KFParticle > &	vV0,
		const int	V0PDG,
		KFPTrackVector &	vTracks,
		const int	q,
		const int	firstTrack,
		const int	lastTrack,
		std::vector< KFParticle > &	Particles,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		int	v0PVIndex = `-1`,
		kfvector_float *	ChiToPrimVtx = `0`,
		std::vector< std::vector< KFParticle > > *	vMotherPrim = `0`,
		std::vector< KFParticle > *	vMotherSec = `0`
	)

Combines tracks and already reconstructed particle candidate of certain type in the next candidate.

Parameters

[in]	vV0	- the input vector with already reconstructed particle candidate.
[in]	V0PDG	- PDG code of the provided particle candidates.
[in]	vTracks	- vector with input tracks.
[in]	q	- charge of the provided tracks.
[in]	firstTrack	- index of the first track to be used.
[in]	lastTrack	- index of the last track to be used.
[out]	Particles	- the output array with the reconstructed particle-candidates.
[in]	PrimVtx	- array with primary vertices.
[in]	v0PVIndex	- index of the corresponding primary vertex if the tracks are primary. If not "-1" should be set.
[in]	ChiToPrimVtx	- vector with the $\chi^2_{prim}$ deviations for provided tracks. If tracks are primary NULL pointer is provided.
[out]	vMotherPrim	- array with output primary candidates.
[out]	vMotherSec	- array with output secondary candidates.

Definition at line 1971 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 1971 of file KFParticleFinder.cxx

References Acts::active, ConstructTrackV0Cand(), cuts, fCutCharmChiPrim, fCutCharmPt, fCuts2D, fCutsTrackV0, fDecayReconstructionList, fDistanceCut, float_vLen, fLPiPIndex, fNPV, KFParticleBaseSIMD::GetDistanceFromParticle(), KFParticleDatabase::GetMotherMass(), KFPTrackVector::Id(), KFParticleDatabase::Instance(), KFParticleSIMD::Load(), KFPTrackVector::NPixelHits(), KFPTrackVector::PDG(), KFPTrackVector::PVIndex(), KFParticleSIMD::Px(), KFParticleSIMD::Py(), KFParticleBaseSIMD::SetPDG(), and Size().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

const float KFParticleFinder::GetChi2Cut2D ( ) const

inline

Returns cut on $\chi^2_{geo}$ for 2-daughter decays.

Definition at line 346 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 346 of file KFParticleFinder.h

References fCuts2D.

const float KFParticleFinder::GetChi2CutCharm2D ( ) const

inline

Returns $\chi^2_{geo}$ cut for open charm with 2 daughters.

Definition at line 372 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 372 of file KFParticleFinder.h

References fCutsCharm.

const float KFParticleFinder::GetChi2CutCharmManybodyDecays ( ) const

inline

Returns $\chi^2_{geo}$ cut for open charm with >=3 daughters.

Definition at line 368 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 368 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChi2CutResonances ( ) const

inline

Returns $\chi^2_{geo}$ cut for resonances.

Definition at line 358 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 358 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChi2CutXiOmega ( ) const

inline

Returns $\chi^2_{geo}$ cut for $\Xi$ and $\Omega$ .

Definition at line 355 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 355 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChi2TopoCutCharm2D ( ) const

inline

Returns $\chi^2_{topo}$ cut for open charm with 2 daughters.

Definition at line 371 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 371 of file KFParticleFinder.h

References fCutsCharm.

const float KFParticleFinder::GetChi2TopoCutCharmManybodyDecays ( ) const

inline

Returns $\chi^2_{topo}$ cut for open charm with >=3 daughters.

Definition at line 367 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 367 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChi2TopoCutResonances ( ) const

inline

Returns $\chi^2_{topo}$ cut for resonances.

Definition at line 357 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 357 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChi2TopoCutXiOmega ( ) const

inline

Returns $\chi^2_{topo}$ cut for $\Xi$ and $\Omega$ .

Definition at line 354 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 354 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetChiPrimaryCut2D ( ) const

inline

Returns cut on $\chi^2_{prim}$ of each track for 2-daughter decays.

Definition at line 345 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 345 of file KFParticleFinder.h

References fCuts2D.

const float KFParticleFinder::GetChiPrimaryCutCharm ( ) const

inline

Returns cut on $\chi^2_{prim}$ of each track for open charm particles.

Definition at line 365 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 365 of file KFParticleFinder.h

References fCutCharmChiPrim.

const float KFParticleFinder::GetLCut ( ) const

inline

Returns cut on the distance to the primary vertex from the decay vertex.

Definition at line 343 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 343 of file KFParticleFinder.h

References fLCut.

const float KFParticleFinder::GetLdLCut2D ( ) const

inline

Returns cut on $l/\Delta l$ for 2-daughter decays.

Definition at line 347 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 347 of file KFParticleFinder.h

References fCuts2D.

const float KFParticleFinder::GetLdLCutCharm2D ( ) const

inline

Returns $l/\Delta l$ cut for open charm with 2 daughters.

Definition at line 370 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 370 of file KFParticleFinder.h

References fCutsCharm.

const float KFParticleFinder::GetLdLCutCharmManybodyDecays ( ) const

inline

Returns $l/\Delta l$ cut for open charm with >=3 daughters.

Definition at line 366 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 366 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetLdLCutXiOmega ( ) const

inline

Returns $l/\Delta l$ cut for $\Xi$ and $\Omega$ .

Definition at line 353 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 353 of file KFParticleFinder.h

References fCutsTrackV0.

const float KFParticleFinder::GetMaxDistanceBetweenParticlesCut ( ) const

inline

Returns cut on the distance between secondary tracks at the DCA point.

Definition at line 342 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 342 of file KFParticleFinder.h

References fDistanceCut.

static int KFParticleFinder::GetNPrimarySets ( )

inlinestatic

Returns number of sets of vectors with primary candidates for different decays.

Definition at line 192 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 192 of file KFParticleFinder.h

References fNPrimCandidatesTopoSets.

static int KFParticleFinder::GetNSecondarySets ( )

inlinestatic

Returns number of sets of vectors with secondary candidates for different decays.

Definition at line 176 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 176 of file KFParticleFinder.h

References fNSecCandidatesSets.

const float KFParticleFinder::GetPCutLMVM ( ) const

inline

Returns cut on momentum of each daughter track of low mass vector mesons in dimuon channel.

Definition at line 361 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 361 of file KFParticleFinder.h

References fCutLVMP.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryAntiLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\overline{\Lambda}\rightarrow \overline{p}\pi^+$ .

Definition at line 200 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 200 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryAntiOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Omega}^-\rightarrow \overline{\Lambda} K^+$ .

Definition at line 212 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 212 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryAntiXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Xi}^-\rightarrow \overline{\Lambda}\pi^+$ .

Definition at line 208 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 208 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >* KFParticleFinder::GetPrimaryCandidates ( ) const

inline

Returns a pointer to array with sets of vectors with primary candidates for different decays.

Definition at line 194 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 194 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryGamma ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\gamma\rightarrow e^+e^-$ conversion.

Definition at line 202 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 202 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryK0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $K_s^0\rightarrow\pi^+\pi^-$ .

Definition at line 196 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 196 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\Lambda\rightarrow p\pi^-$ .

Definition at line 198 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 198 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Omega^-\rightarrow \Lambda K^-$ .

Definition at line 210 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 210 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryPi0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\pi^0\rightarrow \gamma\gamma$ .

Definition at line 204 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 204 of file KFParticleFinder.h

References fPrimCandidates.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoAntiLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\overline{\Lambda}\rightarrow \overline{p}\pi^+$ with topological constraint set on.

Definition at line 225 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 225 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoAntiOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Omega}^-\rightarrow \overline{\Lambda} K^+$ with topological constraint set on.

Definition at line 243 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 243 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoAntiXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Xi}^-\rightarrow \overline{\Lambda}\pi^+$ with topological constraint set on.

Definition at line 237 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 237 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >* KFParticleFinder::GetPrimaryTopoCandidates ( ) const

inline

Returns a pointer to array with sets of vectors with primary candidates for different decays with topological constraint set on.

Definition at line 216 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 216 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoGamma ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\gamma\rightarrow e^+e^-$ conversion with topological constraint set on.

Definition at line 228 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 228 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoK0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $K_s^0\rightarrow\pi^+\pi^-$ with topological constraint set on.

Definition at line 219 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 219 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\Lambda\rightarrow p\pi^-$ with topological constraint set on.

Definition at line 222 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 222 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassAntiLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\overline{\Lambda}\rightarrow \overline{p}\pi^+$ with topological and mass constraints set on.

Definition at line 256 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 256 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassAntiOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Omega}^-\rightarrow \overline{\Lambda} K^+$ with topological and mass constraints set on.

Definition at line 274 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 274 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassAntiXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Xi}^-\rightarrow \overline{\Lambda}\pi^+$ with topological and mass constraints set on.

Definition at line 268 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 268 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >* KFParticleFinder::GetPrimaryTopoMassCandidates ( ) const

inline

Returns a pointer to array with sets of vectors with primary candidates for different decays with topological and mass constraints set on.

Definition at line 247 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 247 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassGamma ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\gamma\rightarrow e^+e^-$ conversion with topological and mass constraints set on.

Definition at line 259 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 259 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassK0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $K_s^0\rightarrow\pi^+\pi^-$ with topological and mass constraints set on.

Definition at line 250 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 250 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassLambda ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\Lambda\rightarrow p\pi^-$ with topological and mass constraints set on.

Definition at line 253 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 253 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Omega^-\rightarrow \Lambda K^-$ with topological and mass constraints set on.

Definition at line 271 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 271 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassPi0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\pi^0\rightarrow \gamma\gamma$ with topological and mass constraints set on.

Definition at line 262 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 262 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoMassXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Xi^-\rightarrow \Lambda\pi^-$ with topological and mass constraints set on.

Definition at line 265 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 265 of file KFParticleFinder.h

References fPrimCandidatesTopoMass.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoOmega ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Omega^-\rightarrow \Lambda K^-$ with topological constraint set on.

Definition at line 240 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 240 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoPi0 ( ) const

inline

Returns a constant reference to the vector with primary candidates for $\pi^0\rightarrow \gamma\gamma$ with topological constraint set on.

Definition at line 231 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 231 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryTopoXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Xi^-\rightarrow \Lambda\pi^-$ with topological constraint set on.

Definition at line 234 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 234 of file KFParticleFinder.h

References fPrimCandidatesTopo.

const std::vector< std::vector<KFParticle> >& KFParticleFinder::GetPrimaryXi ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Xi^-\rightarrow \Lambda\pi^-$ .

Definition at line 206 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 206 of file KFParticleFinder.h

References fPrimCandidates.

const float KFParticleFinder::GetPtCutCharm ( ) const

inline

Returns the cut on transverse momentum of each daughter track of open charm particles.

Definition at line 364 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 364 of file KFParticleFinder.h

References fCutCharmPt.

const float KFParticleFinder::GetPtCutJPsi ( ) const

inline

Returns cut on transverse momentum of each daughter track of $J/\psi$ .

Definition at line 362 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 362 of file KFParticleFinder.h

References fCutJPsiPt.

const float KFParticleFinder::GetPtCutLMVM ( ) const

inline

Returns cut on transverse momentum of each daughter track of low mass vector mesons.

Definition at line 360 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 360 of file KFParticleFinder.h

References fCutLVMPt.

const std::map<int,bool> KFParticleFinder::GetReconstructionList ( ) const

inline

Returns list of decays to be reconstructed.

Definition at line 379 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 379 of file KFParticleFinder.h

References fDecayReconstructionList.

const std::vector<KFParticle>& KFParticleFinder::GetSecondaryAntiLambda ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\overline{\Lambda}\rightarrow \overline{p}\pi^+$ .

Definition at line 184 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 184 of file KFParticleFinder.h

References fSecCandidates.

const std::vector<KFParticle>* KFParticleFinder::GetSecondaryCandidates ( ) const

inline

Returns a pointer to array with sets of vectors with secondary candidates for different decays.

Definition at line 178 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 178 of file KFParticleFinder.h

References fSecCandidates.

const float KFParticleFinder::GetSecondaryChi2TopoCut ( ) const

inline

Returns $\chi^2_{topo}$ cut for selection of primary and secondary candidates.

Definition at line 350 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 350 of file KFParticleFinder.h

References fSecCuts.

const std::vector<KFParticle>& KFParticleFinder::GetSecondaryGamma ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\gamma\rightarrow e^+e^-$ conversion.

Definition at line 186 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 186 of file KFParticleFinder.h

References fSecCandidates.

const std::vector<KFParticle>& KFParticleFinder::GetSecondaryK0 ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $K_s^0\rightarrow\pi^+\pi^-$ .

Definition at line 180 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 180 of file KFParticleFinder.h

References fSecCandidates.

const std::vector<KFParticle>& KFParticleFinder::GetSecondaryLambda ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\Lambda\rightarrow p\pi^-$ .

Definition at line 182 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 182 of file KFParticleFinder.h

References fSecCandidates.

const float KFParticleFinder::GetSecondaryLdLCut ( ) const

inline

Returns $l/\Delta l$ cut for selection of primary and secondary candidates.

Definition at line 351 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 351 of file KFParticleFinder.h

References fSecCuts.

const std::vector<KFParticle>& KFParticleFinder::GetSecondaryPi0 ( ) const

inline

Returns a constant reference to the vector with secondary candidates for $\pi^0\rightarrow \gamma\gamma$ .

Definition at line 188 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 188 of file KFParticleFinder.h

References fSecCandidates.

const float KFParticleFinder::GetSecondarySigmaMassCut ( ) const

inline

Returns $\sigma_{M}$ cut for selection of primary and secondary candidates.

Definition at line 349 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 349 of file KFParticleFinder.h

References fSecCuts.

void KFParticleFinder::Init ( int nPV )

Initialises the new event: all vectors with temporary candidates are cleaned, the number of primary vertices is set to "nPV", vectors with primary candidates are resized correspondingly.

Parameters

[in] nPV - number of primary vertices in the event which will be processed

Definition at line 75 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 75 of file KFParticleFinder.cxx

References fD0, fD04, fD04bar, fD0bar, fD0KK, fD0pipi, fDMinus, fDMinus3Pi, fDPlus, fDPlus3Pi, fDsMinusK2Pi, fDsPlusK2Pi, fH5LL, fHe3Pi, fHe3PiBar, fHe4L, fHe4Pi, fHe4PiBar, fHe5L, fLcMinusP2Pi, fLcPlusP2Pi, fLLn, fLPi, fLPiPIndex, fNPrimCandidatesSets, fNPrimCandidatesTopoSets, fNPV, fNSecCandidatesSets, fPrimCandidates, fPrimCandidatesTopo, fPrimCandidatesTopoMass, and fSecCandidates.

Referenced by FindParticles().

Here is the caller graph for this function:

void KFParticleFinder::NeutralDaughterDecay	(	KFPTrackVector *	vTracks,
		std::vector< KFParticle > &	Particles
	)

Reconstructs particles by the missing mass method.

Parameters

[in]	vRTracks	- pointer to the array with vectors of tracks: 0) secondary positive at the first hit position; 1) secondary negative at the first hit position; 2) primary positive at the first hit position; 3) primary negative at the first hit position; 4) secondary positive at the last hit position; 5) secondary negative at the last hit position; 6) primary positive at the last hit position; 7) primary negative at the last hit position.
[out]	Particles	- the output array with the reconstructed particle-candidates.

Definition at line 2766 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 2766 of file KFParticleFinder.cxx

References Acts::active, KFParticleBase::AddDaughterId(), KFParticleBaseSIMD::AddDaughterId(), KFParticleSIMD::Chi2(), KFParticleBase::CleanDaughtersId(), KFParticleSIMD::Construct(), KFParticleSIMD::E(), f, fCuts2D, fDecayReconstructionList, KFPTrackVector::FirstKaon(), KFPTrackVector::FirstMuon(), KFPTrackVector::FirstPion(), KFPTrackVector::FirstProton(), float_vLen, KFParticleSIMD::GetKFParticle(), KFParticleSIMD::GetPt(), KFParticleSIMD::GetRapidity(), KFPTrackVector::Id(), KFParticleBaseSIMD::Id(), KFPTrackVector::LastKaon(), KFPTrackVector::LastMuon(), KFPTrackVector::LastPion(), KFPTrackVector::LastProton(), KFParticleSIMD::Load(), KFParticleSIMD::NDF(), KFPTrackVector::PDG(), KFPTrackVector::PVIndex(), KFParticleSIMD::Rotate(), KFParticleBase::SetId(), KFParticleBaseSIMD::SetId(), KFParticleBaseSIMD::SetNonlinearMassConstraint(), KFParticleBase::SetPDG(), KFPTrackVector::Size(), KFParticleBaseSIMD::SubtractDaughter(), and KFParticleSIMD::Z().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

KFParticleFinder& KFParticleFinder::operator= ( const KFParticleFinder & )

private

Copying is disabled for this class.

void KFParticleFinder::SaveV0PrimSecCand	(	KFParticleSIMD &	mother,
		int &	NParticles,
		KFParticle &	mother_temp,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float *	secCuts,
		std::vector< std::vector< KFParticle > > *	vMotherPrim,
		std::vector< KFParticle > *	vMotherSec
	)

inline

The function which decides if primary and secondary candidates found by KFParticleFinder::ConstructV0() should be stored and stores them to the provided arrays.

Parameters

[in]	mother	- constructed SIMD vector of particle candidates.
[in]	NParticles	- number of particles in the SIMD vector.
[in]	mother_temp	- temporary object to extract KFParticle from constructed KFParticleSIMD mother. Preallocated for better performance.
[in]	PrimVtx	- array with primary vertices.
[in]	secCuts	- cuts to select primary and secondary candidates from the reconstructed set: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .
[out]	vMotherPrim	- array with output primary candidates if any.
[out]	vMotherSec	- array with output secondary candidates if any.

Definition at line 871 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 871 of file KFParticleFinder.cxx

References f, float_vLen, fNPV, fPrimCandidatesTopo, fPrimCandidatesTopoMass, KFParticleSIMD::GetChi2(), KFParticleSIMD::GetKFParticle(), KFParticleDatabase::GetMotherMass(), KFParticleSIMD::GetNDF(), KFParticleDatabase::Instance(), KFParticleBaseSIMD::PDG(), KFParticleBaseSIMD::SetNonlinearMassConstraint(), and KFParticleBaseSIMD::SetProductionVertex().

Referenced by ConstructPrimaryBG(), ConstructV0(), and Find2DaughterDecay().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::SelectParticles	(	std::vector< KFParticle > &	Particles,
		std::vector< KFParticle > &	vCandidates,
		std::vector< KFParticleSIMD, KFPSimdAllocator< KFParticleSIMD > > &	PrimVtx,
		const float &	cutChi2Topo,
		const float &	cutLdL,
		const float &	mass,
		const float &	massErr,
		const float &	massCut
	)

Selects particles from a set of candidates "vCandidates" according to the provided cuts on $\chi^2_{topo}$ and $l/\Delta l$ and stores them to the output array "Particles". Also, "vCandidates" is cleaned, only selected particles with additional cut on $\sigma_{M}$ are left there.

Parameters

[out]	Particles	- output vector with particles.
[in,out]	vCandidates	- vector with the input candidates.
[in]	PrimVtx	- vector with primary vertices.
[in]	cutChi2Topo	- $\chi^2_{topo}$ cut.
[in]	cutLdL	- $l/\Delta l$ cut.
[in]	mass	- table mass for the given PDG hypothesis.
[in]	massErr	- sigma of the peak width for the given PDG hypothesis.
[in]	massCut	- $\sigma_{M}$ cut.

Definition at line 2428 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 2428 of file KFParticleFinder.cxx

References f, float_vLen, fNPV, GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), GetNDF(), Acts::UnitConstants::m, and KFParticleBaseSIMD::SetProductionVertex().

Referenced by FindParticles().

Here is the call graph for this function:

Here is the caller graph for this function:

void KFParticleFinder::SetChi2Cut2D ( float cut )

inline

Sets cut on $\chi^2_{geo}$ for 2-daughter decays.

Definition at line 284 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 284 of file KFParticleFinder.h

References fCuts2D.

void KFParticleFinder::SetChi2CutCharm2D ( float cut )

inline

Sets $\chi^2_{geo}$ cut for open charm with 2 daughters.

Definition at line 313 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 313 of file KFParticleFinder.h

References fCutsCharm.

void KFParticleFinder::SetChi2CutCharmManybodyDecays ( float cut )

inline

Sets $\chi^2_{geo}$ cut for open charm with >=3 daughters.

Definition at line 309 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 309 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChi2CutResonances ( float cut )

inline

Sets $\chi^2_{geo}$ cut for resonances.

Definition at line 299 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 299 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChi2CutXiOmega ( float cut )

inline

Sets $\chi^2_{geo}$ cut for $\Xi$ and $\Omega$ .

Definition at line 296 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 296 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChi2TopoCutCharm2D ( float cut )

inline

Sets $\chi^2_{topo}$ cut for open charm with 2 daughters.

Definition at line 312 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 312 of file KFParticleFinder.h

References fCutsCharm.

void KFParticleFinder::SetChi2TopoCutCharmManybodyDecays ( float cut )

inline

Sets $\chi^2_{topo}$ cut for open charm with >=3 daughters.

Definition at line 308 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 308 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChi2TopoCutResonances ( float cut )

inline

Sets $\chi^2_{topo}$ cut for resonances.

Definition at line 298 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 298 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChi2TopoCutXiOmega ( float cut )

inline

Sets $\chi^2_{topo}$ cut for $\Xi$ and $\Omega$ .

Definition at line 295 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 295 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetChiPrimaryCut2D ( float cut )

inline

Sets cut on $\chi^2_{prim}$ of each track for 2-daughter decays.

Definition at line 283 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 283 of file KFParticleFinder.h

References fCuts2D.

Referenced by KFParticleTopoReconstructor::SetChi2PrimaryCut().

Here is the caller graph for this function:

void KFParticleFinder::SetChiPrimaryCutCharm ( float cut )

inline

Sets cut on $\chi^2_{prim}$ of each track for open charm particles.

Definition at line 306 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 306 of file KFParticleFinder.h

References fCutCharmChiPrim.

void KFParticleFinder::SetEmcClusters ( KFPEmcCluster * clusters )

inline

Set a pointer to the gamma-clusters from the electromagnetic calorimeter.

Definition at line 169 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 169 of file KFParticleFinder.h

References clusters, and fEmcClusters.

Referenced by KFParticleTopoReconstructor::SetEmcClusters().

Here is the caller graph for this function:

void KFParticleFinder::SetLCut ( float cut )

inline

Sets cut on the distance to the primary vertex from the decay vertex.

Definition at line 281 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 281 of file KFParticleFinder.h

References fLCut.

void KFParticleFinder::SetLdLCut2D ( float cut )

inline

Sets cut on $l/\Delta l$ for 2-daughter decays.

Definition at line 285 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 285 of file KFParticleFinder.h

References fCuts2D.

void KFParticleFinder::SetLdLCutCharm2D ( float cut )

inline

Sets $l/\Delta l$ cut for open charm with 2 daughters.

Definition at line 311 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 311 of file KFParticleFinder.h

References fCutsCharm.

void KFParticleFinder::SetLdLCutCharmManybodyDecays ( float cut )

inline

Sets $l/\Delta l$ cut for open charm with >=3 daughters.

Definition at line 307 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 307 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetLdLCutXiOmega ( float cut )

inline

Sets $l/\Delta l$ cut for $\Xi$ and $\Omega$ .

Definition at line 294 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 294 of file KFParticleFinder.h

References fCutsTrackV0.

void KFParticleFinder::SetMaxDistanceBetweenParticlesCut ( float cut )

inline

Sets cut on the distance between secondary tracks at the DCA point.

Definition at line 280 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 280 of file KFParticleFinder.h

References fDistanceCut.

void KFParticleFinder::SetMixedEventAnalysis ( )

inline

Switch KFParticleFinder to the mixed event mode.

Definition at line 172 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 172 of file KFParticleFinder.h

References fMixedEventAnalysis.

Referenced by KFParticleTopoReconstructor::SetMixedEventAnalysis().

Here is the caller graph for this function:

void KFParticleFinder::SetNPV ( int nPV )

Sets the number of primary vertices to "nPV", resizes all vectors with primary candidates correspondingly.

Parameters

[in] nPV - number of the primary vertices in the event to be set.

Definition at line 3101 of file KFParticleFinder.cxx.

View newest version in sPHENIX GitHub at line 3101 of file KFParticleFinder.cxx

References fNPrimCandidatesSets, fNPrimCandidatesTopoSets, fNPV, fPrimCandidates, fPrimCandidatesTopo, and fPrimCandidatesTopoMass.

Referenced by KFParticleTopoReconstructor::AddPV().

Here is the caller graph for this function:

void KFParticleFinder::SetNThreads ( short int n )

inline

Sets the number of threads to by run in parallel. Currently not used.

Definition at line 55 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 55 of file KFParticleFinder.h

References fNThreads, and n.

Referenced by KFParticleTopoReconstructor::KFParticleTopoReconstructor().

Here is the caller graph for this function:

void KFParticleFinder::SetPCutLMVM ( float cut )

inline

Sets the cut on momentum of each daughter track of low mass vector mesons in dimuon channel.

Definition at line 302 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 302 of file KFParticleFinder.h

References fCutLVMP.

void KFParticleFinder::SetPtCutCharm ( float cut )

inline

Sets the cut on transverse momentum of each daughter track of open charm particles.

Definition at line 305 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 305 of file KFParticleFinder.h

References fCutCharmPt.

void KFParticleFinder::SetPtCutJPsi ( float cut )

inline

Sets the cut on transverse momentum of each daughter track of $J/\psi$ .

Definition at line 303 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 303 of file KFParticleFinder.h

References fCutJPsiPt.

void KFParticleFinder::SetPtCutLMVM ( float cut )

inline

Sets the cut on transverse momentum of each daughter track of low mass vector mesons.

Definition at line 301 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 301 of file KFParticleFinder.h

References fCutLVMPt.

void KFParticleFinder::SetReconstructionList ( const std::map< int, bool > & decays )

inline

Set enitre reconstruction list.

Definition at line 380 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 380 of file KFParticleFinder.h

References fDecayReconstructionList.

void KFParticleFinder::SetSecondaryCuts	(	const float	sigmaMass = `3.f`,
		const float	chi2Topo = `5.f`,
		const float	ldl = `10.f`
	)

inline

Sets cuts on selection of secondary and primary candidates: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .

Definition at line 288 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 288 of file KFParticleFinder.h

References fSecCuts.

Member Data Documentation

float KFParticleFinder::fCutCharmChiPrim

private

Cut on the $\chi^2_{prim}$ deviation of the track from the primary vertex for open charm reconstruction.

Definition at line 401 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 401 of file KFParticleFinder.h

Referenced by CopyCuts(), Find2DaughterDecay(), FindTrackV0Decay(), GetChiPrimaryCutCharm(), KFParticleFinder(), and SetChiPrimaryCutCharm().

float KFParticleFinder::fCutCharmPt

private

Cut on transverse momentum of the track for open charm reconstruction.

Definition at line 400 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 400 of file KFParticleFinder.h

Referenced by CopyCuts(), Find2DaughterDecay(), FindTrackV0Decay(), GetPtCutCharm(), and SetPtCutCharm().

float KFParticleFinder::fCutJPsiPt

private

Cut on transverse momentum of daughter tracks for $J/\psi$ .

Definition at line 409 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 409 of file KFParticleFinder.h

Referenced by ConstructV0(), CopyCuts(), GetPtCutJPsi(), and SetPtCutJPsi().

float KFParticleFinder::fCutLVMP

private

Cut on momentum of low mass vector mesons in dimuon channel.

Definition at line 406 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 406 of file KFParticleFinder.h

Referenced by CopyCuts(), GetPCutLMVM(), and SetPCutLMVM().

float KFParticleFinder::fCutLVMPt

private

Cut on transverse momentum of daughter tracks for low mass vector mesons.

Definition at line 405 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 405 of file KFParticleFinder.h

Referenced by ConstructV0(), CopyCuts(), GetPtCutLMVM(), and SetPtCutLMVM().

float KFParticleFinder::fCuts2D[3]

private

Cuts on 2-daughter decays: $\chi^2_{prim}$ , $\chi^2_{geo}$ , $l/\Delta l$ .

Definition at line 390 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 390 of file KFParticleFinder.h

Referenced by CopyCuts(), Find2DaughterDecay(), FindParticles(), FindTrackV0Decay(), GetChi2Cut2D(), GetChiPrimaryCut2D(), GetLdLCut2D(), KFParticleFinder(), NeutralDaughterDecay(), SetChi2Cut2D(), SetChiPrimaryCut2D(), and SetLdLCut2D().

float KFParticleFinder::fCutsCharm[3]

private

Cuts on reconstructed 2-daughter charm candidates: $\chi^2_{geo}$ , $l/\Delta l$ , $\chi^2_{topo}$ .

Definition at line 402 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 402 of file KFParticleFinder.h

Referenced by ConstructV0(), CopyCuts(), FindParticles(), GetChi2CutCharm2D(), GetChi2TopoCutCharm2D(), GetLdLCutCharm2D(), KFParticleFinder(), SetChi2CutCharm2D(), SetChi2TopoCutCharm2D(), and SetLdLCutCharm2D().

float KFParticleFinder::fCutsPartPart[2][3]

private

Cuts on the combination of two short-lived particle candidates: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ . Two sets are defined: 1) for particles that fly away from the primary vertex and 2) for resonances.

Definition at line 397 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 397 of file KFParticleFinder.h

Referenced by CopyCuts(), FindParticles(), and KFParticleFinder().

float KFParticleFinder::fCutsTrackV0[3][3]

private

Cuts on the combination of track and short-lived particle candidate: $l/\Delta l$ , $\chi^2_{topo}$ , $\chi^2_{geo}$ . Three sets of cuts are defined: 1) for $\Xi$ and $\Omega$ , 2) for hypernuclei and open charm, 3) for resonances.

Definition at line 394 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 394 of file KFParticleFinder.h

Referenced by CopyCuts(), FindTrackV0Decay(), GetChi2CutCharmManybodyDecays(), GetChi2CutResonances(), GetChi2CutXiOmega(), GetChi2TopoCutCharmManybodyDecays(), GetChi2TopoCutResonances(), GetChi2TopoCutXiOmega(), GetLdLCutCharmManybodyDecays(), GetLdLCutXiOmega(), KFParticleFinder(), SetChi2CutCharmManybodyDecays(), SetChi2CutResonances(), SetChi2CutXiOmega(), SetChi2TopoCutCharmManybodyDecays(), SetChi2TopoCutResonances(), SetChi2TopoCutXiOmega(), SetLdLCutCharmManybodyDecays(), and SetLdLCutXiOmega().

std::vector<KFParticle> KFParticleFinder::fD0

private

Vector with temporary D0->K-pi+ candidates.

Definition at line 412 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 412 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fD04

private

Vector with temporary D0->K-pi+pi+pi- candidates.

Definition at line 414 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 414 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fD04bar

private

Vector with temporary D0_bar->K+pi+pi-pi- candidates.

Definition at line 415 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 415 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fD0bar

private

Vector with temporary D0_bar->K+pi- candidates.

Definition at line 413 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 413 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fD0KK

private

Vector with temporary D0->K+K- candidates.

Definition at line 416 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 416 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fD0pipi

private

Vector with temporary D0->pi+pi- candidates.

Definition at line 417 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 417 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::map<int,bool> KFParticleFinder::fDecayReconstructionList

private

Map defines if the reconstruction of the decay with a certain PDG hypothesis should be run. If the map is empty - all decays are reconstructed. If at least one decay is added - only those decays will be reconstructed which are specified in the list.

Definition at line 463 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 463 of file KFParticleFinder.h

Referenced by AddDecayToReconstructionList(), CombinePartPart(), ConstructPrimaryBG(), Find2DaughterDecay(), FindTrackV0Decay(), GetReconstructionList(), NeutralDaughterDecay(), and SetReconstructionList().

float KFParticleFinder::fDistanceCut

private

Cut on the distance between secondary tracks at the DCA point, is soft and used to speed up the algorithm only.

Definition at line 387 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 387 of file KFParticleFinder.h

Referenced by CopyCuts(), Find2DaughterDecay(), FindTrackV0Decay(), GetMaxDistanceBetweenParticlesCut(), and SetMaxDistanceBetweenParticlesCut().

std::vector<KFParticle> KFParticleFinder::fDMinus

private

Vector with temporary D–>K+pi-pi- candidates.

Definition at line 419 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 419 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fDMinus3Pi

private

Vector with temporary D–>pi+pi-pi- candidates.

Definition at line 421 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 421 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fDPlus

private

Vector with temporary D+->K-pi+pi+ candidates.

Definition at line 418 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 418 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fDPlus3Pi

private

Vector with temporary D+->pi+pi+pi- candidates.

Definition at line 420 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 420 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fDsMinusK2Pi

private

Vector with temporary Ds–>K-pi+pi- candidates.

Definition at line 423 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 423 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fDsPlusK2Pi

private

Vector with temporary Ds+->K+pi+pi- candidates.

Definition at line 422 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 422 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

KFPEmcCluster* KFParticleFinder::fEmcClusters

private

Pointer to the input gamma-clusters from the electromagnetic calorimeter.

Definition at line 458 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 458 of file KFParticleFinder.h

Referenced by FindParticles(), and SetEmcClusters().

std::vector<KFParticle> KFParticleFinder::fH5LL

private

Vector with temporary H5_LL->He5_Lambda pi- candidates.

Definition at line 437 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 437 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe3Pi

private

Temporary He3+ pi- combinations.

Definition at line 430 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 430 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe3PiBar

private

Temporary He3- pi+ combinations.

Definition at line 431 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 431 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe4L

private

Vector with temporary He4_Lambda->He3 p pi- candidates.

Definition at line 434 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 434 of file KFParticleFinder.h

Referenced by FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe4Pi

private

Temporary He4+ pi- combinations.

Definition at line 432 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 432 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe4PiBar

private

Temporary He4- pi+ combinations.

Definition at line 433 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 433 of file KFParticleFinder.h

Referenced by ConstructV0(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fHe5L

private

Vector with temporary He4_Lambda->He4 p pi- candidates.

Definition at line 435 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 435 of file KFParticleFinder.h

Referenced by FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fLcMinusP2Pi

private

Vector with temporary Lambda_c_bar->p-pi+pi- candidates.

Definition at line 425 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 425 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fLcPlusP2Pi

private

Vector with temporary Lambda_c->p pi+pi- candidates.

Definition at line 424 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 424 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

float KFParticleFinder::fLCut

private

Cut on the distance to the primary vertex from the decay vertex. Is applied to $K^0_s$ , $\Lambda$ , $\Xi$ , $\Omega$ , hypernuclei and dibaryons.

Definition at line 388 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 388 of file KFParticleFinder.h

Referenced by CombinePartPart(), ConstructTrackV0Cand(), ConstructV0(), CopyCuts(), GetLCut(), and SetLCut().

std::vector<KFParticle> KFParticleFinder::fLLn

private

Vector with temporary H3_Lambda pi- candidates.

Definition at line 436 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 436 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<KFParticle> KFParticleFinder::fLPi

private

Temporary Lambda pi+ combinations.

Definition at line 428 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 428 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindParticles(), and Init().

std::vector<int> KFParticleFinder::fLPiPIndex

private

Index of the proton in Labmda for Lambda pi+ combinations.

Definition at line 429 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 429 of file KFParticleFinder.h

Referenced by ConstructTrackV0Cand(), FindTrackV0Decay(), and Init().

bool KFParticleFinder::fMixedEventAnalysis

private

Flag defines if the mixed event analysis is run. In mixed event mode limited number of decays is reconstructed.

Definition at line 460 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 460 of file KFParticleFinder.h

Referenced by Find2DaughterDecay(), FindParticles(), and SetMixedEventAnalysis().

const int KFParticleFinder::fNPrimCandidatesSets = 11

staticprivate

Number of sets of primary particle candidates.

Definition at line 443 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 443 of file KFParticleFinder.h

Referenced by Init(), and SetNPV().

const int KFParticleFinder::fNPrimCandidatesTopoSets = 9

staticprivate

Number of sets of primary particle candidates with topological constraint.

Definition at line 448 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 448 of file KFParticleFinder.h

Referenced by GetNPrimarySets(), Init(), and SetNPV().

short int KFParticleFinder::fNPV

private

Number of primary vertex candidates in the event.

Definition at line 384 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 384 of file KFParticleFinder.h

Referenced by AddCandidate(), CombinePartPart(), ConstructPrimaryBG(), ConstructTrackV0Cand(), ConstructV0(), Find2DaughterDecay(), FindParticles(), FindTrackV0Decay(), Init(), SaveV0PrimSecCand(), SelectParticles(), and SetNPV().

const int KFParticleFinder::fNSecCandidatesSets = 5

staticprivate

Number of sets of secondary particle candidates.

Definition at line 440 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 440 of file KFParticleFinder.h

Referenced by GetNSecondarySets(), and Init().

short int KFParticleFinder::fNThreads

private

Number of threads to be run in parallel. Currently is not used.

Definition at line 385 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 385 of file KFParticleFinder.h

Referenced by SetNThreads().

std::vector< std::vector<KFParticle> > KFParticleFinder::fPrimCandidates[fNPrimCandidatesSets]

private

Array of vectors with primary candidates for each primary vertex: 0) $K_s^0$ , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ , 9) $\Xi^{0*}$ , 10) $\overline{\Xi}^{0*}$ .

Definition at line 447 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 447 of file KFParticleFinder.h

Referenced by AddCandidate(), ConstructTrackV0Cand(), FindParticles(), GetPrimaryAntiLambda(), GetPrimaryAntiOmega(), GetPrimaryAntiXi(), GetPrimaryCandidates(), GetPrimaryGamma(), GetPrimaryK0(), GetPrimaryLambda(), GetPrimaryOmega(), GetPrimaryPi0(), GetPrimaryXi(), Init(), and SetNPV().

std::vector< std::vector<KFParticle> > KFParticleFinder::fPrimCandidatesTopo[fNPrimCandidatesTopoSets]

private

Array of vectors with primary candidates for each primary vertex with a topological constraint set: 0) $K_s^0$ , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ .

Definition at line 452 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 452 of file KFParticleFinder.h

Referenced by AddCandidate(), GetPrimaryTopoAntiLambda(), GetPrimaryTopoAntiOmega(), GetPrimaryTopoAntiXi(), GetPrimaryTopoCandidates(), GetPrimaryTopoGamma(), GetPrimaryTopoK0(), GetPrimaryTopoLambda(), GetPrimaryTopoOmega(), GetPrimaryTopoPi0(), GetPrimaryTopoXi(), Init(), SaveV0PrimSecCand(), and SetNPV().

std::vector< std::vector<KFParticle> > KFParticleFinder::fPrimCandidatesTopoMass[fNPrimCandidatesTopoSets]

private

Array of vectors with primary candidates for each primary vertex with a topological and mass constraints set: 0) $K_s^0$ , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ , 5) $\Xi^-$ , 6) $\overline{\Xi}^+$ , 7) $\Omega^-$ , 8) $\overline{\Omega}^+$ .

Definition at line 456 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 456 of file KFParticleFinder.h

Referenced by AddCandidate(), GetPrimaryTopoMassAntiLambda(), GetPrimaryTopoMassAntiOmega(), GetPrimaryTopoMassAntiXi(), GetPrimaryTopoMassCandidates(), GetPrimaryTopoMassGamma(), GetPrimaryTopoMassK0(), GetPrimaryTopoMassLambda(), GetPrimaryTopoMassOmega(), GetPrimaryTopoMassPi0(), GetPrimaryTopoMassXi(), Init(), SaveV0PrimSecCand(), and SetNPV().

std::vector<KFParticle> KFParticleFinder::fSecCandidates[fNSecCandidatesSets]

private

Array of vectors with secondary candidates: 0) $K_s^0$ , 1) $\Lambda$ , 2) $\overline{\Lambda}$ , 3) $\gamma$ , 4) $\pi^0$ .

Definition at line 442 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 442 of file KFParticleFinder.h

Referenced by AddCandidate(), FindParticles(), GetSecondaryAntiLambda(), GetSecondaryCandidates(), GetSecondaryGamma(), GetSecondaryK0(), GetSecondaryLambda(), GetSecondaryPi0(), and Init().

float KFParticleFinder::fSecCuts[3]

private

Cuts to select secondary and primary particle candidates: $\sigma_{M}$ , $\chi^2_{topo}$ , $l/\Delta l$ .

Definition at line 391 of file KFParticleFinder.h.

View newest version in sPHENIX GitHub at line 391 of file KFParticleFinder.h

Referenced by CopyCuts(), FindParticles(), GetSecondaryChi2TopoCut(), GetSecondaryLdLCut(), GetSecondarySigmaMassCut(), KFParticleFinder(), and SetSecondaryCuts().

The documentation for this class was generated from the following files:

KFParticle/blob/master/KFParticle/KFParticleFinder.h
KFParticle/blob/master/KFParticle/KFParticleFinder.cxx

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation