#include <DecayingParticle.h>

Inheritance diagram for DecayingParticle:

Public Member Functions
const DecayTreeVectorMap &	decayTrees () const

virtual bool	consistent () const override
	Check consistency of object.

virtual void	checkDecayChannel (const DecayChannel &c) const

virtual std::shared_ptr < DecayChannel >	addChannel (std::shared_ptr< DecayChannel > c)

std::shared_ptr< DecayChannel >	addChannel (const ParticleVector &daughters)

template<typename... Types>
std::shared_ptr< DecayChannel >	addChannel (std::shared_ptr< Particle > A, std::shared_ptr< Particle > B, Types...other_daughters)

void	printDecayChain () const
	Print complete decay chain.

const Model *	model () const override

Getters
const DecayChannelVector &	channels () const

std::shared_ptr< RealParameter >	radialSize ()

const BlattWeisskopfMap &	blattWeisskopfs () const

Public Member Functions inherited from Particle
const QuantumNumbers &	quantumNumbers () const
	const access QuantumNumbers object

const std::string &	name () const
	Get name (const)

std::string &	name ()
	Get name.

const ParticleCombinationSet &	particleCombinations () const

Static Public Member Functions
static std::shared_ptr < DecayingParticle >	create (std::string name, const QuantumNumbers &q, double radialSize, std::shared_ptr< PhaseSpaceFactorFactory > phsp_factory=DefaultPHSPFactory)

Public Attributes
friend	Model
	grant friend status to Model to call fixSolitaryFreeAmplitudes()

friend	DecayChannel
	grant friend status to DecayChannel to call registerWithModel()

Protected Member Functions
	DecayingParticle (std::string name, const QuantumNumbers &q, double radialSize, std::shared_ptr< PhaseSpaceFactorFactory > phsp_factory)

virtual void	addParticleCombination (const std::shared_ptr< ParticleCombination > &c) override
	add ParticleCombination to SymmetrizationIndices_ and BlattWeisskopfs_

virtual void	pruneParticleCombinations () override
	prune ParticleCombinations_ to only contain ParticleCombination's tracing back up the ISP

virtual void	registerWithModel () override
	register any necessary DataAccessor's with model

void	fixSolitaryFreeAmplitudes ()
	if only one decay channel is available, fix its free amplitude to the current value

void	printDecayChainLevel (int level) const

virtual void	modifyDecayTree (DecayTree &dt)

virtual std::shared_ptr < PhaseSpaceFactor >	phaseSpaceFactor (const DecayChannel &dc, const SpinAmplitude &sa)

std::shared_ptr < PhaseSpaceFactorFactory >	phaseSpaceFactorFactory ()

Protected Member Functions inherited from Particle
	Particle (std::string name, const QuantumNumbers &q)

Private Attributes
DecayChannelVector	Channels_
	vector of decay channel objects

BlattWeisskopfMap	BlattWeisskopfs_
	map of Blatt-Weisskopf barrier factors, key = angular momentum

std::shared_ptr< RealParameter >	RadialSize_
	Radial size parameter [GeV^-1].

DecayTreeVectorMap	DecayTrees_
	Map of spin projection to DecayTreeVector.

std::shared_ptr < PhaseSpaceFactorFactory >	PhaseSpaceFactorFactory_
	PhaseSpaceFactorFactory.

Detailed Description

Class for a particle that will decay

Author: Johannes Rauch, Daniel Greenwald

The amplitude function returns a sum over the amplitudes of all DecayChannel's for the decay of the particle (denoted P, with daughters in channel c denoted D1, D2; and amplitude A_c):
A_c = a_c * Blatt-Weisskopf(P->D1+D2) * SpinAmplitude(P->D1+D2) * A(D1->xx) * A(D2->xx)
with free amplitude a_c.

Constructor & Destructor Documentation

DecayingParticle	(	std::string	name,
		const QuantumNumbers &	q,
		double	radialSize,
		std::shared_ptr< PhaseSpaceFactorFactory >	phsp_factory
	)

protected

Constructor see create

Member Function Documentation

std::shared_ptr< DecayChannel > addChannel ( std::shared_ptr< DecayChannel > c )

virtual

Add a DecayChannel and set its parent to this DecayingParticle.

Parameters

c	unique_ptr to DecayChannel, should be constructed in function call, or use std::move(c)

Returns: shared_ptr to DecayChannel that has been added

create decay trees for channel:

loop over spin amplitudes of channel

Reimplemented in Resonance.

std::shared_ptr< DecayChannel > addChannel ( const ParticleVector & daughters )

Add a DecayChannel and set its parent to this DecayingParticle.

Parameters

daughters ParticleVector of daughters to create DecayChannel object from

Returns: shared_ptr to DecayChannel that has been added

std::shared_ptr<DecayChannel> addChannel	(	std::shared_ptr< Particle >	A,
		std::shared_ptr< Particle >	B,
		Types...	other_daughters
	)

inline

Add a DecayChannel and set its parent to this DecayingParticle.

Parameters

A	shared_ptr to a daughter
B	shared_ptr to a daughter
other_daughters...	other daughters

Returns: shared_ptr to DecayChannel that has been added

const BlattWeisskopfMap& blattWeisskopfs ( ) const

inline

Returns: Blatt-Weisskopf factors

const DecayChannelVector& channels ( ) const

inline

Returns: channels

void checkDecayChannel ( const DecayChannel & c ) const

virtual

Check if a DecayChannel is valid for DecayingParticle; will throw if invalid

Reimplemented in Resonance.

static std::shared_ptr<DecayingParticle> create	(	std::string	name,
		const QuantumNumbers &	q,
		double	radialSize,
		std::shared_ptr< PhaseSpaceFactorFactory >	phsp_factory = `DefaultPHSPFactory`
	)

inlinestatic

create

Parameters

name	Name of decaying particle
q	QuantumNumbers of decaying particle
radialSize	radial size of decaying particle

const DecayTreeVectorMap& decayTrees ( ) const

inline

Returns: DecayTrees map key is spin projection

const Model * model ( ) const

overridevirtual

Returns: raw pointer to Model through first DecayChannel

Implements Particle.

void modifyDecayTree ( DecayTree & dt )

protectedvirtual

modify a DecayTree

Parameters

dt	DecayTree to modify

Reimplemented in Resonance.

std::shared_ptr< PhaseSpaceFactor > phaseSpaceFactor	(	const DecayChannel &	dc,
		const SpinAmplitude &	sa
	)

protectedvirtual

Returns: PhaseSpaceFactor via PhaseSpaceFactorFactory

Reimplemented in Resonance.

std::shared_ptr<PhaseSpaceFactorFactory> phaseSpaceFactorFactory ( )

inlineprotected

Returns: PhaseSpaceFactorFactory_

std::shared_ptr<RealParameter> radialSize ( )

inline

Returns: Radial size [GeV^-1]

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

/home/dgreenw/work/belle/YAP/include/DecayingParticle.h
/home/dgreenw/work/belle/YAP/src/DecayingParticle.cxx

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation