JetAnalyzer.hh File Reference

Light FastJet wrapper for Heavy Ion analysis program file and the functions in that file. More...

#include "fastjet/ClusterSequence.hh"
#include "fastjet/ClusterSequenceArea.hh"
#include "fastjet/ClusterSequencePassiveArea.hh"
#include "fastjet/ClusterSequenceActiveArea.hh"
#include "fastjet/ClusterSequenceActiveAreaExplicitGhosts.hh"
#include "fastjet/Selector.hh"
#include <TLorentzVector.h>
#include <TClonesArray.h>
#include "fastjet/tools/JetMedianBackgroundEstimator.hh"
#include "fastjet/tools/Subtractor.hh"
#include "fastjet/tools/Filter.hh"
#include "fastjet/FunctionOfPseudoJet.hh"
#include <iostream>
#include <string>
#include <sstream>
#include <utility>
#include <algorithm>

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Classes
class	JetAnalyzer
class	SelectorDijetWorker
struct	sort_IntDoubleByDouble
class	JetAnalysisUserInfo
class	SelectorChargeWorker

Functions
fastjet::Selector	SelectorDijets (const double dPhi=0.4)
bool	IsMatched (const std::vector< fastjet::PseudoJet > &jetset1, const std::vector< fastjet::PseudoJet > &jetset2, const double Rmax)
bool	IsMatched (const std::vector< fastjet::PseudoJet > &jetset1, const fastjet::PseudoJet &reference, const double Rmax)
bool	IsMatched (const fastjet::PseudoJet &jet1, const fastjet::PseudoJet &jet2, const double Rmax)
TLorentzVector	MakeTLorentzVector (const fastjet::PseudoJet &pj)
fastjet::PseudoJet	MakePseudoJet (const TLorentzVector *const lv)
fastjet::Selector	SelectorChargeRange (const int cmin=-999, const int cmax=999)
fastjet::JetAlgorithm	AlgoFromString (std::string s)

Detailed Description

Light FastJet wrapper for Heavy Ion analysis program file and the functions in that file.

Author

Kauder:Kolja

Version

Revision 0.1

Light FastJet wrapper for Heavy Ion analysis program file and the functions in that file.

Date

Mar 03, 2015

Definition in file JetAnalyzer.hh.

Function Documentation

fastjet::JetAlgorithm AlgoFromString

(

std::string

s

)

Helper to get an enum from a string we'll allow some more generous spellings and abbreviations

Definition at line 281 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 281 of file JetAnalyzer.cxx

References antikt_algorithm, cambridge_algorithm, kt_algorithm, Acts::Test::transform, and undefined_jet_algorithm.

bool IsMatched	(	const std::vector< fastjet::PseudoJet > &	jetset1,
		const std::vector< fastjet::PseudoJet > &	jetset2,
		const double	Rmax
	)

Determines whether two vector sets are matched 1 to 1. Could return something like lists of matches, but for now it's using a primitive 1-to-1 matching. Enforcing 1-to-1 to avoid pathologies. For dijet A_J, the implementation is already overkill, but I want to lay the groundwork for more complex tasks

Definition at line 204 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 204 of file JetAnalyzer.cxx

bool IsMatched	(	const std::vector< fastjet::PseudoJet > &	jetset1,
		const fastjet::PseudoJet &	reference,
		const double	Rmax
	)

Check if one of the jets in jetset1 matches the reference. TODO: Could use this in the vector-vector version

Definition at line 241 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 241 of file JetAnalyzer.cxx

bool IsMatched	(	const fastjet::PseudoJet &	jet1,
		const fastjet::PseudoJet &	jet2,
		const double	Rmax
	)

Check if jet and jet2 are matched TODO: Could use this in the vector versions

Definition at line 253 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 253 of file JetAnalyzer.cxx

fastjet::PseudoJet MakePseudoJet

(

const TLorentzVector *const

lv

)

The best way to interface vector<PseudoJet> with ROOT seems to be via TClonesArray<TLorentzVector>, so we'll provide some ways to go back and forth between them. Pretty redundant, PseudoJet is a smart class and does all the work.

Definition at line 268 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 268 of file JetAnalyzer.cxx

TLorentzVector MakeTLorentzVector

(

const fastjet::PseudoJet &

pj

)

The best way to interface vector<PseudoJet> with ROOT seems to be via TClonesArray<TLorentzVector>, so we'll provide some ways to go back and forth between them.

Definition at line 259 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 259 of file JetAnalyzer.cxx

fastjet::Selector SelectorChargeRange	(	const int	cmin = -999,
		const int	cmax = 999
	)

the function that allows to write simply

Selector sel = SelectorChargeRange( cmin, cmax );

Definition at line 276 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 276 of file JetAnalyzer.cxx

fastjet::Selector SelectorDijets

(

const double

dPhi = 0.4

)

Determines whether two vector sets are matched 1 to 1. Actual Dijet selector

Parameters

dPhi,:

Dijet acceptance angle Δφ

Definition at line 176 of file JetAnalyzer.cxx.

View newest version in sPHENIX GitHub at line 176 of file JetAnalyzer.cxx

Referenced by PHAJMaker::process_event().

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