Detailed Description

An incoherent sum of resonant contributions, where at a positiion in phase-space \(\psi\), the (unnormalised) probability density is given by

\[ \mathcal{P}(\psi) = \sum_{i} \left| g_i \mathcal{A}_i(\psi) \right|^2, \]

where \(\mathcal{P}(\psi)\) is the probability, \(g_i\) is the coupling to an isobar channel, and \(\mathcal{A}_i(\psi)\) is the amplitude of the ith channel. I dont know whats going on?

Definition at line 34 of file IncoherentSum.h.

Public Types
using	EventList_type = EventList

Public Member Functions
	IncoherentSum (const EventType &eventType, const AmpGen::MinuitParameterSet &mps, const std::string &prefix="Inco")
	Constructs an incoherentSum from the type of event this is expected to describe, and a set of parameters that are expected to be able to describe it.

real_t	prob (const Event &evt) const
	Evaluates the normalised probability for an event.

real_t	operator() (const Event &evt) const

real_v	operator() (const real_v *, const unsigned) const

real_t	prob_unnormalised (const Event &evt) const
	Calculates the unnormalised probability for an event.

real_t	norm () const
	Returns the normalisation for this PDF, given by.

complex_t	norm (const size_t &i, const size_t &j)

complex_t	norm (const size_t &i)

real_t	norm (const Bilinears &norms) const

std::vector< FitFraction >	fitFractions (const LinearErrorPropagator &linProp)

real_t	prob_unnormalisedNoCache (const Event &evt) const

void	debug (const Event &evt, const std::string &nameMustContain="")

std::function< real_t(const Event &)>	evaluator (const EventList_type *=nullptr) const

KeyedFunctors< double(Event)>	componentEvaluator (const EventList_type *=nullptr) const

std::string	prefix () const

auto &	operator[] (const size_t &index)

auto &	operator[] (const size_t &index) const

size_t	size () const

real_t	getWeight () const

complex_t	norm (const size_t &x, const size_t &y) const

real_t	getNorm (const Bilinears &normalisations)

complex_t	getVal (const Event &evt) const

complex_t	getValNoCache (const Event &evt) const

void	transferParameters ()

void	prepare ()

void	printVal (const Event &evt)

void	updateNorms ()

void	setWeight (MinuitProxy param)

void	makeTotalExpression ()

void	reset (bool resetEvents=false)

void	setEvents (const EventList_type &list)

void	setMC (const EventList_type &sim)

void	generateSourceCode (const std::string &fname, const double &normalisation=1, bool add_mt=false)

auto	matrixElements () const

std::map< std::string, std::vector< unsigned int > >	getGroupedAmplitudes ()

Bilinears	norms () const

std::function< complex_t(const Event &)>	amplitudeEvaluator (const EventList_type *=nullptr) const

EventType	eventType () const

const auto &	cache () const

Protected Member Functions
void	addMatrixElement (std::pair< Particle, TotalCoupling > &particleWithCoupling, const MinuitParameterSet &mps)

Protected Attributes
std::vector< MatrixElement >	m_matrixElements
	Vector of matrix elements.

Bilinears	m_normalisations
	Normalisation integrals.

Integrator	m_integrator
	Tool to calculate integrals.

const EventList_type *	m_events = {nullptr}
	Data events to evaluate PDF on.

FunctionCache< EventList_type, complex_v, Alignment::AoS >	m_cache
	Store of intermediate values for the PDF calculation.

bool	m_ownEvents = {false}
	Flag as to whether events are owned by this PDF or not.

EventType	m_eventType
	Final state for this amplitude.

size_t	m_prepareCalls = {0}
	Number of times prepare has been called.

size_t	m_lastPrint = {0}
	Last time verbose PDF info was printed.

size_t	m_printFreq = {0}
	Frequency to print verbose PDF info.

MinuitProxy	m_weight = {nullptr, 1}
	Weight (i.e. the normalised yield)

double	m_norm = {1}
	Normalisation integral.

bool	m_isConstant = {false}
	Flag for a constant PDF.

bool	m_dbThis = {false}
	Flag to generate amplitude level debugging.

bool	m_verbosity = {false}
	Flag for verbose printing.

std::string	m_objCache = {""}
	Directory that contains (cached) amplitude objects.

std::string	m_prefix = {""}
	Prefix for matrix elements.

const MinuitParameterSet *	m_mps = {nullptr}

Inheritance diagram for AmpGen::IncoherentSum:

Member Typedef Documentation

◆ EventList_type

using AmpGen::CoherentSum::EventList_type = EventList

inherited

Definition at line 50 of file CoherentSum.h.

Constructor & Destructor Documentation

◆ IncoherentSum()

AmpGen::IncoherentSum::IncoherentSum	(	const EventType &	eventType,
		const AmpGen::MinuitParameterSet &	mps,
		const std::string &	prefix = "Inco" )

Parameters

eventType	The type of event that this PDF should describe
mps	The parameter set of couplings, masses, etc.
prefix	Prefix required for the `‘head’' decays for this event type.

Member Function Documentation

◆ addMatrixElement()

void AmpGen::CoherentSum::addMatrixElement	(	std::pair< Particle, TotalCoupling > &	particleWithCoupling,
		const MinuitParameterSet &	mps )

protectedinherited

◆ amplitudeEvaluator()

std::function< complex_t(const Event &)> AmpGen::CoherentSum::amplitudeEvaluator ( const EventList_type * = nullptr ) const

inherited

◆ cache()

const auto & AmpGen::CoherentSum::cache ( ) const

inlineinherited

Definition at line 105 of file CoherentSum.h.

◆ componentEvaluator()

KeyedFunctors< double(Event)> AmpGen::IncoherentSum::componentEvaluator ( const EventList_type * = nullptr ) const

◆ debug()

void AmpGen::IncoherentSum::debug	(	const Event &	evt,
		const std::string &	nameMustContain = "" )

◆ evaluator()

std::function< real_t(const Event &)> AmpGen::IncoherentSum::evaluator ( const EventList_type * = nullptr ) const

◆ eventType()

EventType AmpGen::CoherentSum::eventType ( ) const

inlineinherited

Definition at line 104 of file CoherentSum.h.

◆ fitFractions()

std::vector< FitFraction > AmpGen::IncoherentSum::fitFractions ( const LinearErrorPropagator & linProp )

◆ generateSourceCode()

void AmpGen::CoherentSum::generateSourceCode	(	const std::string &	fname,
		const double &	normalisation = 1,
		bool	add_mt = false )

inherited

◆ getGroupedAmplitudes()

std::map< std::string, std::vector< unsigned int > > AmpGen::CoherentSum::getGroupedAmplitudes ( )

inherited

◆ getNorm()

real_t AmpGen::CoherentSum::getNorm ( const Bilinears & normalisations )

inherited

◆ getVal()

complex_t AmpGen::CoherentSum::getVal ( const Event & evt ) const

inherited

◆ getValNoCache()

complex_t AmpGen::CoherentSum::getValNoCache ( const Event & evt ) const

inherited

◆ getWeight()

real_t AmpGen::CoherentSum::getWeight ( ) const

inlineinherited

Definition at line 61 of file CoherentSum.h.

◆ makeTotalExpression()

void AmpGen::CoherentSum::makeTotalExpression ( )

inherited

◆ matrixElements()

auto AmpGen::CoherentSum::matrixElements ( ) const

inlineinherited

Definition at line 96 of file CoherentSum.h.

◆ norm() [1/5]

complex_t AmpGen::CoherentSum::norm	(	const size_t &	x,
		const size_t &	y ) const

inherited

◆ norm() [2/5]

real_t AmpGen::IncoherentSum::norm ( ) const

\[ \mathcal{N} = \int d\psi \varepsilon(\psi) \mathcal{P}(\psi) \approx \sum_i \frac{\mathcal{P}(\psi_i)}{\mathcal{P}^\prime(\psi_i)} \]

where the sum is over a simulated sample, generated with PDF \(\mathcal{P}^\prime(\psi)\).

◆ norm() [3/5]

real_t AmpGen::IncoherentSum::norm ( const Bilinears & norms ) const

◆ norm() [4/5]

complex_t AmpGen::IncoherentSum::norm ( const size_t & i )

inline

Definition at line 62 of file IncoherentSum.h.

◆ norm() [5/5]

complex_t AmpGen::IncoherentSum::norm	(	const size_t &	i,
		const size_t &	j )

inline

Definition at line 61 of file IncoherentSum.h.

◆ norms()

Bilinears AmpGen::CoherentSum::norms ( ) const

inlineinherited

Definition at line 99 of file CoherentSum.h.

◆ operator()() [1/2]

real_t AmpGen::IncoherentSum::operator() ( const Event & evt ) const

inline

Definition at line 46 of file IncoherentSum.h.

◆ operator()() [2/2]

real_v AmpGen::IncoherentSum::operator()	(	const real_v *	,
		const unsigned	) const

◆ operator[]() [1/2]

auto & AmpGen::CoherentSum::operator[] ( const size_t & index )

inlineinherited

Definition at line 58 of file CoherentSum.h.

◆ operator[]() [2/2]

auto & AmpGen::CoherentSum::operator[] ( const size_t & index ) const

inlineinherited

Definition at line 59 of file CoherentSum.h.

◆ prefix()

std::string AmpGen::CoherentSum::prefix ( ) const

inlineinherited

Definition at line 56 of file CoherentSum.h.

◆ prepare()

void AmpGen::CoherentSum::prepare ( )

inherited

◆ printVal()

void AmpGen::CoherentSum::printVal ( const Event & evt )

inherited

◆ prob()

real_t AmpGen::IncoherentSum::prob ( const Event & evt ) const

◆ prob_unnormalised()

real_t AmpGen::IncoherentSum::prob_unnormalised ( const Event & evt ) const

◆ prob_unnormalisedNoCache()

real_t AmpGen::IncoherentSum::prob_unnormalisedNoCache ( const Event & evt ) const

◆ reset()

void AmpGen::CoherentSum::reset ( bool resetEvents = false )

inherited

◆ setEvents()

void AmpGen::CoherentSum::setEvents ( const EventList_type & list )

inherited

◆ setMC()

void AmpGen::CoherentSum::setMC ( const EventList_type & sim )

inherited

◆ setWeight()

void AmpGen::CoherentSum::setWeight ( MinuitProxy param )

inlineinherited

Definition at line 74 of file CoherentSum.h.

◆ size()

size_t AmpGen::CoherentSum::size ( ) const

inlineinherited

Definition at line 60 of file CoherentSum.h.

◆ transferParameters()

void AmpGen::CoherentSum::transferParameters ( )

inherited

◆ updateNorms()

void AmpGen::CoherentSum::updateNorms ( )

inherited

Member Data Documentation

◆ m_cache

FunctionCache<EventList_type, complex_v, Alignment::AoS> AmpGen::CoherentSum::m_cache

protectedinherited

Definition at line 112 of file CoherentSum.h.

◆ m_dbThis

bool AmpGen::CoherentSum::m_dbThis = {false}

protectedinherited

Definition at line 122 of file CoherentSum.h.

◆ m_events

const EventList_type* AmpGen::CoherentSum::m_events = {nullptr}

protectedinherited

Definition at line 111 of file CoherentSum.h.

◆ m_eventType

EventType AmpGen::CoherentSum::m_eventType

protectedinherited

Definition at line 115 of file CoherentSum.h.

◆ m_integrator

Integrator AmpGen::CoherentSum::m_integrator

protectedinherited

Definition at line 110 of file CoherentSum.h.

◆ m_isConstant

bool AmpGen::CoherentSum::m_isConstant = {false}

protectedinherited

Definition at line 121 of file CoherentSum.h.

◆ m_lastPrint

size_t AmpGen::CoherentSum::m_lastPrint = {0}

protectedinherited

Definition at line 117 of file CoherentSum.h.

◆ m_matrixElements

std::vector<MatrixElement> AmpGen::CoherentSum::m_matrixElements

protectedinherited

Definition at line 107 of file CoherentSum.h.

◆ m_mps

const MinuitParameterSet* AmpGen::CoherentSum::m_mps = {nullptr}

protectedinherited

Definition at line 126 of file CoherentSum.h.

◆ m_norm

double AmpGen::CoherentSum::m_norm = {1}

protectedinherited

Definition at line 120 of file CoherentSum.h.

◆ m_normalisations

Bilinears AmpGen::CoherentSum::m_normalisations

protectedinherited

Definition at line 108 of file CoherentSum.h.

◆ m_objCache

std::string AmpGen::CoherentSum::m_objCache = {""}

protectedinherited

Definition at line 124 of file CoherentSum.h.

◆ m_ownEvents

bool AmpGen::CoherentSum::m_ownEvents = {false}

protectedinherited

Definition at line 114 of file CoherentSum.h.

◆ m_prefix

std::string AmpGen::CoherentSum::m_prefix = {""}

protectedinherited

Definition at line 125 of file CoherentSum.h.

◆ m_prepareCalls

size_t AmpGen::CoherentSum::m_prepareCalls = {0}

protectedinherited

Definition at line 116 of file CoherentSum.h.

◆ m_printFreq

size_t AmpGen::CoherentSum::m_printFreq = {0}

protectedinherited

Definition at line 118 of file CoherentSum.h.

◆ m_verbosity

bool AmpGen::CoherentSum::m_verbosity = {false}

protectedinherited

Definition at line 123 of file CoherentSum.h.

◆ m_weight

MinuitProxy AmpGen::CoherentSum::m_weight = {nullptr, 1}

protectedinherited

Definition at line 119 of file CoherentSum.h.

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

/github/workspace/AmpGen/IncoherentSum.h

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Member Typedef Documentation

◆ EventList_type

Constructor & Destructor Documentation

◆ IncoherentSum()

Member Function Documentation

◆ addMatrixElement()

◆ amplitudeEvaluator()

◆ cache()

◆ componentEvaluator()

◆ debug()

◆ evaluator()

◆ eventType()

◆ fitFractions()

◆ generateSourceCode()

◆ getGroupedAmplitudes()

◆ getNorm()

◆ getVal()

◆ getValNoCache()

◆ getWeight()

◆ makeTotalExpression()

◆ matrixElements()

◆ norm() [1/5]

◆ norm() [2/5]

◆ norm() [3/5]

◆ norm() [4/5]

◆ norm() [5/5]

◆ norms()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ prefix()

◆ prepare()

◆ printVal()

◆ prob()

◆ prob_unnormalised()

◆ prob_unnormalisedNoCache()

◆ reset()

◆ setEvents()

◆ setMC()

◆ setWeight()

◆ size()

◆ transferParameters()

◆ updateNorms()

Member Data Documentation

◆ m_cache

◆ m_dbThis

◆ m_events

◆ m_eventType

◆ m_integrator

◆ m_isConstant

◆ m_lastPrint

◆ m_matrixElements

◆ m_mps

◆ m_norm

◆ m_normalisations

◆ m_objCache

◆ m_ownEvents

◆ m_prefix

◆ m_prepareCalls

◆ m_printFreq

◆ m_verbosity

◆ m_weight