ComPWA::Physics::EvtGen::DalitzKinematics Class Reference

Implementation of the ComPWA::Kinematics interface for amplitude models using the helicity formalism. More...

#include <DalitzKinematics.hpp>

Public Member Functions
	DalitzKinematics (ParticleStateTransitionKinematicsInfo KinInfo, double PhspVol)
	DalitzKinematics (ParticleStateTransitionKinematicsInfo kininfo)
	DalitzKinematics (ComPWA::ParticleList partL, std::vector< pid > initialState, std::vector< pid > finalState, ComPWA::FourMomentum cmsP4=ComPWA::FourMomentum(0, 0, 0, 0))
	Create DalitzKinematics from inital and final state particle lists. More...
	DalitzKinematics (const DalitzKinematics &that)=delete
	Delete copy constructor. More...
	DalitzKinematics (DalitzKinematics &&that)=default
ComPWA::Data::DataSet	convert (const EventCollection &DataSample) const final
EventCollection	reduceToPhaseSpace (const EventCollection &DataSample) const final
	Returns a subset of events that are within phase space boundaries. More...
double	phspVolume () const
const std::vector< pid > &	getFinalStatePIDs () const override
	Get a vector of PIDs of the final state. More...
Public Member Functions inherited from ComPWA::Kinematics
virtual	~Kinematics ()=default

Private Attributes
ParticleStateTransitionKinematicsInfo	KinematicsInfo
double	PhspVolume
double	M2

Detailed Description

Implementation of the ComPWA::Kinematics interface for amplitude models using the helicity formalism.

The basic functionality is the calculation of the kinematics variables from four-momenta.

Definition at line 27 of file DalitzKinematics.hpp.

Inheritance diagram for ComPWA::Physics::EvtGen::DalitzKinematics:

Collaboration diagram for ComPWA::Physics::EvtGen::DalitzKinematics:

Constructor & Destructor Documentation

DalitzKinematics() [1/5]

ComPWA::Physics::EvtGen::DalitzKinematics::DalitzKinematics	(	ParticleStateTransitionKinematicsInfo	KinInfo,
		double	PhspVol
	)

Definition at line 43 of file DalitzKinematics.cpp.

DalitzKinematics() [2/5]

ComPWA::Physics::EvtGen::DalitzKinematics::DalitzKinematics

(

ParticleStateTransitionKinematicsInfo

kininfo

)

Calculation of n-dimensional phase space volume. ToDo: We need to implement an analytical calculation here

Definition at line 36 of file DalitzKinematics.cpp.

DalitzKinematics() [3/5]

ComPWA::Physics::EvtGen::DalitzKinematics::DalitzKinematics	(	ComPWA::ParticleList	partL,
		std::vector< pid >	initialState,
		std::vector< pid >	finalState,
		ComPWA::FourMomentum	cmsP4 = ComPWA::FourMomentum(0, 0, 0,                                                                     0)
	)

Create DalitzKinematics from inital and final state particle lists.

The lists contain the pid of initial and final state. The position of a particle in initial or final state list is used later on for identification.

Definition at line 23 of file DalitzKinematics.cpp.

DalitzKinematics() [4/5]

ComPWA::Physics::EvtGen::DalitzKinematics::DalitzKinematics ( const DalitzKinematics &  that )

delete

Delete copy constructor.

For each Kinematics in the analysis only one instance should exist since Kinematics does the bookkeeping which SubSystems variables are needs to be calculated. That instance can then be passed as (smart) pointer.

DalitzKinematics() [5/5]

ComPWA::Physics::EvtGen::DalitzKinematics::DalitzKinematics ( DalitzKinematics &&  that )

default

Member Function Documentation

convert()

ComPWA::Data::DataSet ComPWA::Physics::EvtGen::DalitzKinematics::convert ( const EventCollection &  DataSample ) const

finalvirtual

Implements ComPWA::Kinematics.

Definition at line 78 of file DalitzKinematics.cpp.

getFinalStatePIDs()

const std::vector<pid>& ComPWA::Physics::EvtGen::DalitzKinematics::getFinalStatePIDs ( ) const

inlineoverridevirtual

Get a vector of PIDs of the final state.

This interface allows the user to use the info in this object to interpret momentum tuples in a date file.

Implements ComPWA::Kinematics.

Definition at line 58 of file DalitzKinematics.hpp.

phspVolume()

double ComPWA::Physics::EvtGen::DalitzKinematics::phspVolume ( ) const

virtual

Implements ComPWA::Kinematics.

Definition at line 53 of file DalitzKinematics.cpp.

reduceToPhaseSpace()

EventCollection ComPWA::Physics::EvtGen::DalitzKinematics::reduceToPhaseSpace ( const EventCollection &  DataSample ) const

finalvirtual

Returns a subset of events that are within phase space boundaries.

Implements ComPWA::Kinematics.

Definition at line 56 of file DalitzKinematics.cpp.

Member Data Documentation

KinematicsInfo

ParticleStateTransitionKinematicsInfo ComPWA::Physics::EvtGen::DalitzKinematics::KinematicsInfo

private

Definition at line 63 of file DalitzKinematics.hpp.

M2

double ComPWA::Physics::EvtGen::DalitzKinematics::M2

private

Definition at line 67 of file DalitzKinematics.hpp.

PhspVolume

double ComPWA::Physics::EvtGen::DalitzKinematics::PhspVolume

private

Definition at line 65 of file DalitzKinematics.hpp.

---

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

• Physics/EvtGen/DalitzKinematics.hpp
• Physics/EvtGen/DalitzKinematics.cpp