Classes
struct	EventFraction

Typedefs
using	EventCollection = std::vector< EventFraction >

using	EventProperties = std::vector< std::vector< float >>

using	ProbabilityDistributions = std::vector< TH1F * >

using	CumulativeDistribution = TH1F *

using	Vector = Acts::ActsDynamicVector

using	Matrix = Acts::ActsDynamicMatrix

using	EigenspaceComponents = std::tuple< Vector, Matrix, Vector >

using	Parametrisation = std::pair< EigenspaceComponents, std::vector< CumulativeDistribution >>

Functions
EventProperties	prepareMomenta (const EventCollection &events, unsigned int multiplicity, bool soft)
	This method scales the final state momenta by the initial momentum.

ProbabilityDistributions	buildMomPerMult (const EventProperties &events, unsigned int nBins)
	This method builds the distributions of each generation of a final state.

EventProperties	convertEventToGaussian (const ProbabilityDistributions &histos, const EventProperties &events)
	Transform probability distribution entries to standard normal distribution entries.

std::pair< Vector, Matrix >	calculateMeanAndCovariance (unsigned int multiplicity, const EventProperties &events)
	Calculate the mean and the covariance matrix of a final state property.

EigenspaceComponents	calculateEigenspace (const Vector &mean, const Matrix &covariance)
	Calculate the eigenvalues, eigenvectors and the mean in eigenspace.

Parametrisation	buildMomentumParameters (const EventCollection &events, unsigned int multiplicity, bool soft, unsigned int nBins)
	This function calculates all components required for simulating final state momenta.

EventProperties	prepareInvariantMasses (const EventCollection &events, unsigned int multiplicity, bool soft)
	This method calculates the final state particles invariant masses.

Parametrisation	buildInvariantMassParameters (const EventCollection &events, unsigned int multiplicity, bool soft, unsigned int nBins)
	This function calculates all components required for simulating final state invariant masses.

std::unordered_map< int, std::unordered_map< int, float > >	cumulativePDGprobability (const EventCollection &events)
	This method evaluates the cumulative probabilities for a given particle type to produce a particle type.

std::pair < CumulativeDistribution, CumulativeDistribution >	cumulativeMultiplicityProbability (const EventCollection &events, unsigned int multiplicityMax)
	Evaluates the cumulative probabilities for a certain multiplicity of in a soft or hard process.

TVectorF	softProbability (const EventCollection &events)
	This method evaluates the probability that a nuclear interaction is a soft interaction.

CumulativeDistribution	cumulativeNuclearInteractionProbability (const EventCollection &events, unsigned int interactionProbabilityBins)
	This method calculates the cumulative probability for a nuclear interaction as a function of L0.

Variables
static constexpr uint32_t	s_MaxValue = UINT32_MAX

Typedef Documentation

using ActsExamples::detail::NuclearInteractionParametrisation::CumulativeDistribution = typedef TH1F*

Definition at line 62 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 62 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::EigenspaceComponents = typedef std::tuple<Vector, Matrix, Vector>

Definition at line 65 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 65 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::EventCollection = typedef std::vector<EventFraction>

Definition at line 59 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 59 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::EventProperties = typedef std::vector<std::vector<float>>

Definition at line 60 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 60 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::Matrix = typedef Acts::ActsDynamicMatrix

Definition at line 64 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 64 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::Parametrisation = typedef std::pair<EigenspaceComponents, std::vector<CumulativeDistribution>>

Definition at line 67 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 67 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::ProbabilityDistributions = typedef std::vector<TH1F*>

Definition at line 61 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 61 of file NuclearInteractionParametrisation.hpp

using ActsExamples::detail::NuclearInteractionParametrisation::Vector = typedef Acts::ActsDynamicVector

Definition at line 63 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 63 of file NuclearInteractionParametrisation.hpp

Function Documentation

Parametrisation ActsExamples::detail::NuclearInteractionParametrisation::buildInvariantMassParameters	(	const EventCollection &	events,
		unsigned int	multiplicity,
		bool	soft,
		unsigned int	nBins
	)

This function calculates all components required for simulating final state invariant masses.

Parameters

[in]	events	The event storage
[in]	soft	Decision whether soft interactions should be considered
[in]	nBins	The number of bins in the histograms

Returns: Pair storing all components

Definition at line 236 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 236 of file NuclearInteractionParametrisation.cpp

References buildMomPerMult(), calculateEigenspace(), calculateMeanAndCovariance(), convertEventToGaussian(), add_histos::histos, and prepareInvariantMasses().

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Parametrisation ActsExamples::detail::NuclearInteractionParametrisation::buildMomentumParameters	(	const EventCollection &	events,
		unsigned int	multiplicity,
		bool	soft,
		unsigned int	nBins
	)

This function calculates all components required for simulating final state momenta.

Parameters

[in]	events	The event storage
[in]	soft	Decision whether soft interactions should be considered
[in]	nBins	The number of bins in the histograms

Returns: Pair storing all components

Definition at line 104 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 104 of file NuclearInteractionParametrisation.cpp

References buildMomPerMult(), calculateEigenspace(), calculateMeanAndCovariance(), convertEventToGaussian(), add_histos::histos, and prepareMomenta().

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ProbabilityDistributions ActsExamples::detail::NuclearInteractionParametrisation::buildMomPerMult	(	const EventProperties &	events,
		unsigned int	nBins
	)

This method builds the distributions of each generation of a final state.

Parameters

[in]	events	The storage of a property with fixed multiplicity and interaction type
[in]	nBins	Number of bins in the histogram

Returns: Vector containing the distributions for each generation

Definition at line 153 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 153 of file NuclearInteractionParametrisation.cpp

References event, add_histos::histos, i, and Acts::UnitConstants::min.

Referenced by buildInvariantMassParameters(), and buildMomentumParameters().

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EigenspaceComponents ActsExamples::detail::NuclearInteractionParametrisation::calculateEigenspace	(	const Vector &	mean,
		const Matrix &	covariance
	)

Calculate the eigenvalues, eigenvectors and the mean in eigenspace.

Parameters

[in]	mean	The mean of the normal distribution
[in]	covariance	The covariance matrix of the normal distribution

Returns: Tuple containing the eigenvalues, eigenvectors and the mean in eigenspace

Definition at line 92 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 92 of file NuclearInteractionParametrisation.cpp

References std::tr1::make_tuple(), and mean().

Referenced by buildInvariantMassParameters(), and buildMomentumParameters().

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std::pair< Vector, Matrix > ActsExamples::detail::NuclearInteractionParametrisation::calculateMeanAndCovariance	(	unsigned int	multiplicity,
		const EventProperties &	events
	)

Calculate the mean and the covariance matrix of a final state property.

Parameters

[in] events The storage of a property with fixed multiplicity and interaction type

Returns: Pair containing the mean and the covariance matrix

Definition at line 67 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 67 of file NuclearInteractionParametrisation.cpp

References covariance(), event, i, j, k, mean(), and full_chain_odd::multiplicity.

Referenced by buildInvariantMassParameters(), and buildMomentumParameters().

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EventProperties ActsExamples::detail::NuclearInteractionParametrisation::convertEventToGaussian	(	const ProbabilityDistributions &	histos,
		const EventProperties &	events
	)

Transform probability distribution entries to standard normal distribution entries.

Parameters

[in]	histos	The probability distributions
[in]	events	The storage of a property with fixed multiplicity and interaction type

Returns: The transformed values of events

Definition at line 193 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 193 of file NuclearInteractionParametrisation.cpp

References event, and i.

Referenced by buildInvariantMassParameters(), and buildMomentumParameters().

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std::pair< CumulativeDistribution, CumulativeDistribution > ActsExamples::detail::NuclearInteractionParametrisation::cumulativeMultiplicityProbability	(	const EventCollection &	events,
		unsigned int	multiplicityMax
	)

Evaluates the cumulative probabilities for a certain multiplicity of in a soft or hard process.

Parameters

[in] events The event storage

Returns: Pair containing the distribution for soft and hard processes

Definition at line 309 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 309 of file NuclearInteractionParametrisation.cpp

References event, and Acts::UnitConstants::min.

Referenced by ActsExamples::RootNuclearInteractionParametersWriter::finalize().

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CumulativeDistribution ActsExamples::detail::NuclearInteractionParametrisation::cumulativeNuclearInteractionProbability	(	const EventCollection &	events,
		unsigned int	interactionProbabilityBins
	)

This method calculates the cumulative probability for a nuclear interaction as a function of L0.

Parameters

[in]	events	The event storage
[in]	interactionProbabilityBins	Number of bins used for the histogram

Note: The number of events is used for the normalisation of the distribution. Hence the result is not necessarily normalised to 1. This allows to sample whether a nuclear interaction occurs up to a certain value of L0 or not at all.

Returns: The cumulative distribution for the nuclear interaction

Definition at line 360 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 360 of file NuclearInteractionParametrisation.cpp

References event, and Acts::UnitConstants::min.

Referenced by ActsExamples::RootNuclearInteractionParametersWriter::finalize().

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std::unordered_map< int, std::unordered_map< int, float > > ActsExamples::detail::NuclearInteractionParametrisation::cumulativePDGprobability ( const EventCollection & events )

This method evaluates the cumulative probabilities for a given particle type to produce a particle type.

Parameters

[in] events The event storage

Returns: Map containing the cumulative branching probabilities

Definition at line 261 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 261 of file NuclearInteractionParametrisation.cpp

References fixGDML::element, event, i, next, and sum().

Referenced by ActsExamples::RootNuclearInteractionParametersWriter::finalize().

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EventProperties ActsExamples::detail::NuclearInteractionParametrisation::prepareInvariantMasses	(	const EventCollection &	events,
		unsigned int	multiplicity,
		bool	soft
	)

This method calculates the final state particles invariant masses.

Parameters

[in]	events	The event storage
[in]	multiplicity	The target multiplicity
[in]	soft	Decision whether soft interactions should be considered

Returns: Vector containing the final state invariant masses

Definition at line 215 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 215 of file NuclearInteractionParametrisation.cpp

References event, ActsFatras::Particle::fourMomentum(), and merge_hashes::p.

Referenced by buildInvariantMassParameters().

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EventProperties ActsExamples::detail::NuclearInteractionParametrisation::prepareMomenta	(	const EventCollection &	events,
		unsigned int	multiplicity,
		bool	soft
	)

This method scales the final state momenta by the initial momentum.

Parameters

[in]	events	The event storage
[in]	multiplicity	The target multiplicity
[in]	soft	Decision whether soft interactions should be considered

Returns: Vector containing the scaled final states

Definition at line 127 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 127 of file NuclearInteractionParametrisation.cpp

References ActsFatras::Particle::absoluteMomentum(), event, testing::internal::move(), merge_hashes::p, and sum().

Referenced by buildMomentumParameters().

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TVectorF ActsExamples::detail::NuclearInteractionParametrisation::softProbability ( const EventCollection & events )

This method evaluates the probability that a nuclear interaction is a soft interaction.

Parameters

[in] events The event storage

Returns: The probability for soft interactions

Definition at line 346 of file NuclearInteractionParametrisation.cpp.

View newest version in sPHENIX GitHub at line 346 of file NuclearInteractionParametrisation.cpp

References event.

Referenced by ActsExamples::RootNuclearInteractionParametersWriter::finalize().

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Variable Documentation

constexpr uint32_t ActsExamples::detail::NuclearInteractionParametrisation::s_MaxValue = UINT32_MAX

static

Definition at line 58 of file NuclearInteractionParametrisation.hpp.

View newest version in sPHENIX GitHub at line 58 of file NuclearInteractionParametrisation.hpp

Classes

Typedefs

Functions

Variables

Typedef Documentation

Function Documentation

Variable Documentation