ParticleGenerator is a generator for all the particles combined from the given ParticleLists. More...

#include <ParticleCombiner.h>

Collaboration diagram for ParticleGenerator:

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Public Member Functions
	ParticleGenerator (const std::string &decayString, const std::string &cutParameter="")
	Initialises the generator to produce the given type of sublist.

	ParticleGenerator (const DecayDescriptor &decaydescriptor, const std::string &cutParameter="")
	Initialises the generator to produce the given type of sublist.

void	init ()
	Initialises the generator to produce the given type of sublist.

bool	loadNext (bool loadAntiParticle=true)
	Loads the next combination.

Particle	getCurrentParticle () const
	Returns the particle.

bool	inputListsCollide () const
	True if input lists collide (can contain copies of particles in the input lists).

bool	inputListsCollide (const std::pair< unsigned, unsigned > &pair) const
	True if the pair of input lists collide.

int	getUniqueID (int index) const
	Returns the unique ID assigned to Particle with given index from the IndicesToUniqueID map.

Private Member Functions
Particle	createCurrentParticle () const
	Create current particle object.

bool	loadNextParticle (bool useAntiParticle)
	Loads the next combination.

bool	loadNextSelfConjugatedParticle ()
	Loads the next combination.

bool	currentCombinationHasDifferentSources ()
	Check that all FS particles of a combination differ.

bool	currentCombinationIsUnique ()
	Check that the combination is unique.

bool	currentCombinationIsECLCRUnique ()
	Check that: if the current combination has at least two particles from an ECL source, then they are from different connected regions or from the same connected region but have the same hypothesis.

void	initIndicesToUniqueIDMap ()
	In the case input daughter particle lists collide (two or more lists contain copies of Particles) the Particle's Store Array index can not be longer used as its unique identifier, which is needed to check for uniqueness of accepted combinations.

void	fillIndicesToUniqueIDMap (const std::vector< int > &listA, const std::vector< int > &listB, int &uniqueID)
	Assigns unique IDs to all particles in list A, which do not have the unique ID already assigned.

void	fillIndicesToUniqueIDMap (const std::vector< int > &listA, int &uniqueID)
	Assigns unique IDs to all particles in list A, which do not have the unique ID already assigned.

Private Attributes
int	m_pdgCode
	PDG Code of the particle which is combined.

bool	m_isSelfConjugated
	True if the combined particle is self-conjugated.

unsigned int	m_iParticleType
	The type of particle which is currently generated.

int	m_properties
	Particle property.

std::vector< int >	m_daughterProperties
	Daughter's particle properties.

unsigned int	m_numberOfLists
	Number of lists which are combined.

std::vector< StoreObjPtr< ParticleList > >	m_plists
	particle lists

ListIndexGenerator	m_listIndexGenerator
	listIndexGenerator makes the combinations of the types of sublists of the ParticleLists

ParticleIndexGenerator	m_particleIndexGenerator
	particleIndexGenerator makes the combinations of indices stored in the sublists of the ParticleLists

const StoreArray< Particle >	m_particleArray
	Global list of particles.

std::vector< Particle * >	m_particles
	Pointers to the particle objects of the current combination.

std::vector< int >	m_indices
	Indices stored in the ParticleLists of the current combination.

std::unordered_set< std::set< int > >	m_usedCombinations
	already used combinations (as sets of indices or unique IDs).

bool	m_inputListsCollide
	True if the daughter lists can contain copies of Particles.

std::vector< std::pair< unsigned, unsigned > >	m_collidingLists
	pairs of lists that can contain copies.

std::unordered_map< int, int >	m_indicesToUniqueIDs
	map of store array indices of input Particles to their unique IDs.

std::unique_ptr< Variable::Cut >	m_cut
	cut object which performs the cuts

Particle	m_current_particle
	The current Particle object generated by this combiner.

Detailed Description

ParticleGenerator is a generator for all the particles combined from the given ParticleLists.

Definition at line 126 of file ParticleCombiner.h.

Member Function Documentation

◆ inputListsCollide()

bool inputListsCollide ( ) const

inline

True if input lists collide (can contain copies of particles in the input lists).

When this is true the combiner uses specially determined unique particle's IDs instead of its StoreArray indices in order to check the uniqueness of each combination.

The function is needed only to (unit) test correct running of the combiner.

Definition at line 166 of file ParticleCombiner.h.

166{return m_inputListsCollide; };

Belle2::ParticleGenerator::m_inputListsCollide

bool m_inputListsCollide

True if the daughter lists can contain copies of Particles.

Definition: ParticleCombiner.h:275

Member Data Documentation

◆ m_collidingLists

std::vector<std::pair<unsigned, unsigned> > m_collidingLists

private

pairs of lists that can contain copies.

Definition at line 276 of file ParticleCombiner.h.

◆ m_current_particle

Particle m_current_particle

private

The current Particle object generated by this combiner.

Definition at line 282 of file ParticleCombiner.h.

◆ m_cut

std::unique_ptr<Variable::Cut> m_cut

private

cut object which performs the cuts

Definition at line 280 of file ParticleCombiner.h.

◆ m_daughterProperties

std::vector<int> m_daughterProperties

private

Daughter's particle properties.

Definition at line 260 of file ParticleCombiner.h.

◆ m_indices

std::vector<int> m_indices

private

Indices stored in the ParticleLists of the current combination.

Definition at line 272 of file ParticleCombiner.h.

◆ m_indicesToUniqueIDs

std::unordered_map<int, int> m_indicesToUniqueIDs

private

map of store array indices of input Particles to their unique IDs.

Necessary if input lists collide.

Definition at line 278 of file ParticleCombiner.h.

◆ m_inputListsCollide

bool m_inputListsCollide

private

True if the daughter lists can contain copies of Particles.

Definition at line 275 of file ParticleCombiner.h.

◆ m_iParticleType

unsigned int m_iParticleType

private

The type of particle which is currently generated.

Definition at line 258 of file ParticleCombiner.h.

◆ m_isSelfConjugated

bool m_isSelfConjugated

private

True if the combined particle is self-conjugated.

Definition at line 257 of file ParticleCombiner.h.

◆ m_listIndexGenerator

ListIndexGenerator m_listIndexGenerator

private

listIndexGenerator makes the combinations of the types of sublists of the ParticleLists

Definition at line 266 of file ParticleCombiner.h.

◆ m_numberOfLists

unsigned int m_numberOfLists

private

Number of lists which are combined.

Definition at line 262 of file ParticleCombiner.h.

◆ m_particleArray

const StoreArray<Particle> m_particleArray

private

Global list of particles.

Definition at line 270 of file ParticleCombiner.h.

◆ m_particleIndexGenerator

ParticleIndexGenerator m_particleIndexGenerator

private

particleIndexGenerator makes the combinations of indices stored in the sublists of the ParticleLists

Definition at line 268 of file ParticleCombiner.h.

◆ m_particles

std::vector<Particle*> m_particles

private

Pointers to the particle objects of the current combination.

Definition at line 271 of file ParticleCombiner.h.

◆ m_pdgCode

int m_pdgCode

private

PDG Code of the particle which is combined.

Definition at line 256 of file ParticleCombiner.h.

◆ m_plists

std::vector<StoreObjPtr<ParticleList> > m_plists

private

particle lists

Definition at line 263 of file ParticleCombiner.h.

◆ m_properties

int m_properties

private

Particle property.

Flags are defined in Particle::PropertyFlags

Definition at line 259 of file ParticleCombiner.h.

◆ m_usedCombinations

std::unordered_set<std::set<int> > m_usedCombinations

private

already used combinations (as sets of indices or unique IDs).

Definition at line 273 of file ParticleCombiner.h.

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

analysis/ParticleCombiner/include/ParticleCombiner.h
analysis/ParticleCombiner/src/ParticleCombiner.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Function Documentation

◆ inputListsCollide()

Member Data Documentation

◆ m_collidingLists

◆ m_current_particle

◆ m_cut

◆ m_daughterProperties

◆ m_indices

◆ m_indicesToUniqueIDs

◆ m_inputListsCollide

◆ m_iParticleType

◆ m_isSelfConjugated

◆ m_listIndexGenerator

◆ m_numberOfLists

◆ m_particleArray

◆ m_particleIndexGenerator

◆ m_particles

◆ m_pdgCode

◆ m_plists

◆ m_properties

◆ m_usedCombinations