rpwa::leptoProductionVertex Class Reference

#include <leptoProductionVertex.h>

Inheritance diagram for rpwa::leptoProductionVertex:

Public Member Functions
	leptoProductionVertex (const particlePtr &beamLepton, const particlePtr &target, const particlePtr &XParticle, const particlePtr &recoil=particlePtr())
	force vertex to have two incoming (beam lepton + target) and three outgoing particles (X + recoil + scattered lepton); recoil is optional
	leptoProductionVertex (const leptoProductionVertex &vert)
virtual	~leptoProductionVertex ()
leptoProductionVertex &	operator= (const leptoProductionVertex &vert)
leptoProductionVertexPtr	clone (const bool cloneInParticles=false, const bool cloneOutParticles=false) const
	< creates deep copy of leptoproduction vertex; must not be virtual
virtual bool	addInParticle (const particlePtr &)
	disabled; all incoming particles have to be specified at construction
virtual bool	addOutParticle (const particlePtr &)
	disabled; all outgoing particles have to be specified at construction
virtual const TLorentzVector &	referenceLzVec () const
	returns Lorentz-vector that defines z-axis for angular distributions
virtual const particlePtr &	XParticle () const
	returns X particle
virtual std::complex< double >	productionAmp () const
	returns production amplitude
virtual void	setXFlavorQN ()
	sets flavor quantum numbers of X (baryon nmb., S, C, B) to that of incoming beam particle (assumes Pomeron exchange)
const particlePtr &	beamLepton () const
	returns incoming beam particle
const particlePtr &	target () const
	returns target particle
const particlePtr &	virtPhoton () const
	returns virtual photon
const particlePtr &	scatteredLepton () const
	returns outgoing beam particle
const particlePtr &	recoil () const
	returns recoil particle
double	beamPol () const
	returns (longitudinal) beam polarization
void	setBeamPol (const double longPol=0)
	sets (longitudinal) beam polarization
double	Q2 () const
	returns Q^2 of virtual photon
double	nu () const
	returns energy of virtual photon
double	y () const
	returns relative energy loss of virtual photon
double	epsilon () const
	returns photon's polarization parameter
double	delta () const
	returns photon's mass correction parameter
double	xBj () const
	returns Bjorken x
double	s () const
	returns total energy squared in (virtual photon, target) CM system
double	W () const
	returns total energy in (virtual photon, target) CM system
double	delta (const double epsilon) const
	returns photon's mass correction parameter for known epsilon
virtual bool	initKinematicsData (const TClonesArray &prodKinPartNames)
	initializes input data
virtual bool	readKinematicsData (const TClonesArray &prodKinMomenta)
	reads input data
virtual bool	revertMomenta ()
	resets momenta to the values of last event read
virtual std::ostream &	print (std::ostream &out) const
	prints vertex parameters in human-readable form
virtual std::ostream &	dump (std::ostream &out) const
	prints all vertex data in human-readable form
virtual std::ostream &	printPointers (std::ostream &out) const
	prints particle pointers strored in vertex
virtual std::string	name () const
	returns label used in graph visualization, reporting, and key file
virtual void	clear ()
bool	operator== (const interactionVertex &rhsVert)
bool	operator!= (const interactionVertex &rhsVert)
void	transformOutParticles (const TLorentzRotation &L)
	applies Lorentz-transformation to outgoing particles
unsigned int	nmbInParticles () const
	returns number of incoming particles
unsigned int	nmbOutParticles () const
	returns number of outgoing particles
std::vector< particlePtr > &	inParticles ()
	returns array of incoming particles
const std::vector< particlePtr > &	inParticles () const
	returns array of incoming particles
std::vector< particlePtr > &	outParticles ()
	returns array of outgoing particles
const std::vector< particlePtr > &	outParticles () const
	returns array of outgoing particles

Static Public Member Functions
static bool	debug ()
	returns debug flag
static void	setDebug (const bool debug=true)
	sets debug flag

Protected Member Functions
virtual leptoProductionVertex *	doClone (const bool cloneInParticles, const bool cloneOutParticles) const
	helper function to use covariant return types with smart pointers; needed for public clone()
virtual bool	isEqualTo (const interactionVertex &vert) const
	returns whether vert is equal to this by checking equality of all member variables
void	cloneInParticles ()
	clones all incoming particles
void	cloneOutParticles ()
	clones all outgoing particles

Protected Attributes
std::vector< particlePtr >	_inParticles
	array of pointers to incoming particles
std::vector< particlePtr >	_outParticles
	array of pointers to outgoing particles

Private Attributes
double	_longPol
	longitudinal beam polarization
int	_nmbProdKinPart
	number of production kinematics particles in input data arrays
TVector3	_beamLeptonMomCache
	caches beam momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data
TVector3	_scatteredLeptonMomCache
	caches beam momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data
TVector3	_recoilMomCache
	caches recoil momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data
TVector3	_targetMomCache
	caches target momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data

Static Private Attributes
static bool	_debug = false
	if set to true, debug messages are printed

Detailed Description

Definition at line 62 of file leptoProductionVertex.h.

Constructor & Destructor Documentation

leptoProductionVertex::leptoProductionVertex	(	const particlePtr &	beamLepton,
		const particlePtr &	target,
		const particlePtr &	XParticle,
		const particlePtr &	recoil = particlePtr()
	)

force vertex to have two incoming (beam lepton + target) and three outgoing particles (X + recoil + scattered lepton); recoil is optional

Definition at line 67 of file leptoProductionVertex.cc.

References _debug, addInParticle(), addOutParticle(), and rpwa::createParticle().

Referenced by doClone().

leptoProductionVertex::leptoProductionVertex

(

const leptoProductionVertex &

vert

)

Definition at line 105 of file leptoProductionVertex.cc.

leptoProductionVertex::~leptoProductionVertex ( )

virtual

Definition at line 111 of file leptoProductionVertex.cc.

Member Function Documentation

bool leptoProductionVertex::addInParticle ( const particlePtr &  )

virtual

disabled; all incoming particles have to be specified at construction

Reimplemented from rpwa::interactionVertex.

Definition at line 147 of file leptoProductionVertex.cc.

References _debug.

Referenced by leptoProductionVertex().

bool leptoProductionVertex::addOutParticle ( const particlePtr &  )

virtual

disabled; all outgoing particles have to be specified at construction

Reimplemented from rpwa::interactionVertex.

Definition at line 156 of file leptoProductionVertex.cc.

References _debug.

Referenced by leptoProductionVertex().

const particlePtr& rpwa::leptoProductionVertex::beamLepton ( ) const

inline

returns incoming beam particle

Definition at line 90 of file leptoProductionVertex.h.

References rpwa::interactionVertex::inParticles().

Referenced by delta(), dump(), epsilon(), initKinematicsData(), print(), printPointers(), productionAmp(), readKinematicsData(), revertMomenta(), and y().

double rpwa::leptoProductionVertex::beamPol ( ) const

inline

returns (longitudinal) beam polarization

Definition at line 96 of file leptoProductionVertex.h.

References _longPol.

void interactionVertex::clear ( )

virtualinherited

Definition at line 96 of file interactionVertex.cc.

References rpwa::interactionVertex::_inParticles, and rpwa::interactionVertex::_outParticles.

leptoProductionVertexPtr rpwa::leptoProductionVertex::clone ( const bool  cloneInParticles = false, const bool  cloneOutParticles = false  ) const

inline

< creates deep copy of leptoproduction vertex; must not be virtual

Reimplemented from rpwa::interactionVertex.

Definition at line 74 of file leptoProductionVertex.h.

References rpwa::interactionVertex::cloneInParticles(), rpwa::interactionVertex::cloneOutParticles(), and doClone().

void interactionVertex::cloneInParticles ( )

protectedinherited

clones all incoming particles

Definition at line 207 of file interactionVertex.cc.

References rpwa::interactionVertex::clone(), i, rpwa::interactionVertex::inParticles(), and rpwa::interactionVertex::nmbInParticles().

Referenced by rpwa::fsVertex::clone(), rpwa::isobarDecayVertex::clone(), rpwa::interactionVertex::clone(), clone(), rpwa::diffractiveDissVertex::clone(), rpwa::fsVertex::doClone(), rpwa::interactionVertex::doClone(), rpwa::diffractiveDissVertex::doClone(), rpwa::isobarDecayVertex::doClone(), and doClone().

void interactionVertex::cloneOutParticles ( )

protectedinherited

clones all outgoing particles

Definition at line 217 of file interactionVertex.cc.

References rpwa::interactionVertex::clone(), i, rpwa::interactionVertex::nmbOutParticles(), and rpwa::interactionVertex::outParticles().

Referenced by rpwa::isobarDecayVertex::clone(), rpwa::interactionVertex::clone(), clone(), rpwa::diffractiveDissVertex::clone(), rpwa::interactionVertex::doClone(), rpwa::diffractiveDissVertex::doClone(), rpwa::isobarDecayVertex::doClone(), and doClone().

static bool rpwa::leptoProductionVertex::debug ( )

inlinestatic

returns debug flag

Reimplemented from rpwa::productionVertex.

Definition at line 121 of file leptoProductionVertex.h.

References _debug.

Referenced by setDebug().

double rpwa::leptoProductionVertex::delta ( ) const

inline

returns photon's mass correction parameter

Definition at line 104 of file leptoProductionVertex.h.

References beamLepton(), epsilon(), and Q2().

Referenced by productionAmp().

double rpwa::leptoProductionVertex::delta ( const double  epsilon ) const

inline

returns photon's mass correction parameter for known epsilon

Definition at line 108 of file leptoProductionVertex.h.

References beamLepton(), epsilon(), and Q2().

leptoProductionVertex * leptoProductionVertex::doClone ( const bool  cloneInParticles, const bool  cloneOutParticles  ) const

protectedvirtual

helper function to use covariant return types with smart pointers; needed for public clone()

Reimplemented from rpwa::interactionVertex.

Definition at line 130 of file leptoProductionVertex.cc.

References _debug, rpwa::interactionVertex::cloneInParticles(), rpwa::interactionVertex::cloneOutParticles(), and leptoProductionVertex().

Referenced by clone().

ostream & leptoProductionVertex::dump ( std::ostream &  out ) const

virtual

prints all vertex data in human-readable form

Reimplemented from rpwa::interactionVertex.

Definition at line 532 of file leptoProductionVertex.cc.

References beamLepton(), name(), recoil(), scatteredLepton(), target(), virtPhoton(), and XParticle().

double leptoProductionVertex::epsilon

(

)

const

returns photon's polarization parameter

Definition at line 297 of file leptoProductionVertex.cc.

References beamLepton(), gamma2(), Q2(), target(), xBj(), and y().

Referenced by delta(), and productionAmp().

bool leptoProductionVertex::initKinematicsData ( const TClonesArray &  prodKinPartNames )

virtual

initializes input data

Implements rpwa::productionVertex.

Definition at line 349 of file leptoProductionVertex.cc.

References _nmbProdKinPart, beamLepton(), name(), recoil(), scatteredLepton(), and target().

std::vector<particlePtr>& rpwa::interactionVertex::inParticles ( )

inlineinherited

returns array of incoming particles

Definition at line 87 of file interactionVertex.h.

References rpwa::interactionVertex::_inParticles.

Referenced by rpwa::diffractiveDissVertex::beam(), beamLepton(), rpwa::interactionVertex::cloneInParticles(), rpwa::decayTopology::constructDecay(), rpwa::fsVertex::fsParticle(), rpwa::interactionVertex::isEqualTo(), rpwa::isobarDecayVertex::parent(), target(), rpwa::diffractiveDissVertex::target(), and virtPhoton().

const std::vector<particlePtr>& rpwa::interactionVertex::inParticles ( ) const

inlineinherited

returns array of incoming particles

Definition at line 89 of file interactionVertex.h.

References rpwa::interactionVertex::_inParticles.

bool interactionVertex::isEqualTo ( const interactionVertex &  vert ) const

protectedvirtualinherited

returns whether vert is equal to this by checking equality of all member variables

Reimplemented in rpwa::isobarDecayVertex.

Definition at line 104 of file interactionVertex.cc.

References i, rpwa::interactionVertex::inParticles(), rpwa::interactionVertex::nmbInParticles(), rpwa::interactionVertex::nmbOutParticles(), and rpwa::interactionVertex::outParticles().

Referenced by rpwa::isobarDecayVertex::isEqualTo(), and rpwa::interactionVertex::operator==().

virtual std::string rpwa::leptoProductionVertex::name ( ) const

inlinevirtual

returns label used in graph visualization, reporting, and key file

Reimplemented from rpwa::productionVertex.

Definition at line 119 of file leptoProductionVertex.h.

Referenced by dump(), initKinematicsData(), print(), and printPointers().

unsigned int rpwa::interactionVertex::nmbInParticles ( ) const

inlineinherited

returns number of incoming particles

Definition at line 84 of file interactionVertex.h.

References rpwa::interactionVertex::_inParticles.

Referenced by rpwa::interactionVertex::cloneInParticles(), and rpwa::interactionVertex::isEqualTo().

unsigned int rpwa::interactionVertex::nmbOutParticles ( ) const

inlineinherited

returns number of outgoing particles

Definition at line 85 of file interactionVertex.h.

References rpwa::interactionVertex::_outParticles.

Referenced by rpwa::interactionVertex::cloneOutParticles(), rpwa::interactionVertex::isEqualTo(), rpwa::waveDescription::setXDecayKeys(), and rpwa::interactionVertex::transformOutParticles().

double rpwa::leptoProductionVertex::nu ( ) const

inline

returns energy of virtual photon

Definition at line 101 of file leptoProductionVertex.h.

References target(), and virtPhoton().

bool rpwa::interactionVertex::operator!= ( const interactionVertex &  rhsVert )

inlineinherited

Definition at line 77 of file interactionVertex.h.

leptoProductionVertex & leptoProductionVertex::operator=

(

const leptoProductionVertex &

vert

)

Definition at line 116 of file leptoProductionVertex.cc.

References _beamLeptonMomCache, _recoilMomCache, _scatteredLeptonMomCache, and _targetMomCache.

bool rpwa::interactionVertex::operator== ( const interactionVertex &  rhsVert )

inlineinherited

Definition at line 76 of file interactionVertex.h.

References rpwa::interactionVertex::isEqualTo().

std::vector<particlePtr>& rpwa::interactionVertex::outParticles ( )

inlineinherited

returns array of outgoing particles

Definition at line 88 of file interactionVertex.h.

References rpwa::interactionVertex::_outParticles.

Referenced by rpwa::interactionVertex::cloneOutParticles(), rpwa::isobarDecayVertex::daughter1(), rpwa::isobarDecayVertex::daughter2(), rpwa::interactionVertex::isEqualTo(), rpwa::diffractiveDissVertex::recoil(), recoil(), scatteredLepton(), rpwa::waveDescription::setXDecayKeys(), XParticle(), and rpwa::diffractiveDissVertex::XParticle().

const std::vector<particlePtr>& rpwa::interactionVertex::outParticles ( ) const

inlineinherited

returns array of outgoing particles

Definition at line 90 of file interactionVertex.h.

References rpwa::interactionVertex::_outParticles.

ostream & leptoProductionVertex::print ( std::ostream &  out ) const

virtual

prints vertex parameters in human-readable form

Reimplemented from rpwa::interactionVertex.

Definition at line 520 of file leptoProductionVertex.cc.

References _longPol, beamLepton(), name(), recoil(), scatteredLepton(), target(), virtPhoton(), and XParticle().

Referenced by rpwa::operator<<().

ostream & leptoProductionVertex::printPointers ( std::ostream &  out ) const

virtual

prints particle pointers strored in vertex

Reimplemented from rpwa::interactionVertex.

Definition at line 546 of file leptoProductionVertex.cc.

References beamLepton(), name(), recoil(), scatteredLepton(), target(), virtPhoton(), and XParticle().

complex< double > leptoProductionVertex::productionAmp ( ) const

virtual

returns production amplitude

Reimplemented from rpwa::productionVertex.

Definition at line 165 of file leptoProductionVertex.cc.

References _longPol, beamLepton(), conj(), delta(), epsilon(), i, q(), rho(), scatteredLepton(), target(), virtPhoton(), and XParticle().

double rpwa::leptoProductionVertex::Q2 ( ) const

inline

returns Q^2 of virtual photon

Definition at line 100 of file leptoProductionVertex.h.

References virtPhoton().

Referenced by delta(), epsilon(), and xBj().

bool leptoProductionVertex::readKinematicsData ( const TClonesArray &  prodKinMomenta )

virtual

reads input data

Implements rpwa::productionVertex.

Definition at line 415 of file leptoProductionVertex.cc.

References _beamLeptonMomCache, _debug, _nmbProdKinPart, _recoilMomCache, _scatteredLeptonMomCache, _targetMomCache, beamLepton(), recoil(), scatteredLepton(), target(), and virtPhoton().

const particlePtr& rpwa::leptoProductionVertex::recoil ( ) const

inline

returns recoil particle

Definition at line 94 of file leptoProductionVertex.h.

References rpwa::interactionVertex::outParticles().

Referenced by dump(), initKinematicsData(), print(), printPointers(), readKinematicsData(), and revertMomenta().

virtual const TLorentzVector& rpwa::leptoProductionVertex::referenceLzVec ( ) const

inlinevirtual

returns Lorentz-vector that defines z-axis for angular distributions

Implements rpwa::productionVertex.

Definition at line 82 of file leptoProductionVertex.h.

References virtPhoton().

bool leptoProductionVertex::revertMomenta ( )

virtual

resets momenta to the values of last event read

Implements rpwa::productionVertex.

Definition at line 500 of file leptoProductionVertex.cc.

References _beamLeptonMomCache, _debug, _recoilMomCache, _scatteredLeptonMomCache, _targetMomCache, beamLepton(), recoil(), scatteredLepton(), target(), and virtPhoton().

double rpwa::leptoProductionVertex::s ( ) const

inline

returns total energy squared in (virtual photon, target) CM system

Definition at line 106 of file leptoProductionVertex.h.

References target(), and virtPhoton().

Referenced by W().

const particlePtr& rpwa::leptoProductionVertex::scatteredLepton ( ) const

inline

returns outgoing beam particle

Definition at line 93 of file leptoProductionVertex.h.

References rpwa::interactionVertex::outParticles().

Referenced by dump(), initKinematicsData(), print(), printPointers(), productionAmp(), readKinematicsData(), and revertMomenta().

void rpwa::leptoProductionVertex::setBeamPol ( const double  longPol = 0 )

inline

sets (longitudinal) beam polarization

Definition at line 97 of file leptoProductionVertex.h.

References _longPol.

static void rpwa::leptoProductionVertex::setDebug ( const bool  debug = true )

inlinestatic

sets debug flag

Reimplemented from rpwa::productionVertex.

Definition at line 122 of file leptoProductionVertex.h.

References _debug, and debug().

void leptoProductionVertex::setXFlavorQN ( )

virtual

sets flavor quantum numbers of X (baryon nmb., S, C, B) to that of incoming beam particle (assumes Pomeron exchange)

!! check this

Implements rpwa::productionVertex.

Definition at line 336 of file leptoProductionVertex.cc.

References rpwa::particleProperties::baryonNmb(), rpwa::particleProperties::beauty(), rpwa::particleProperties::charm(), rpwa::particleProperties::setBaryonNmb(), rpwa::particleProperties::setBeauty(), rpwa::particleProperties::setCharm(), rpwa::particleProperties::setStrangeness(), rpwa::particleProperties::strangeness(), virtPhoton(), and XParticle().

const particlePtr& rpwa::leptoProductionVertex::target ( ) const

inline

returns target particle

Definition at line 91 of file leptoProductionVertex.h.

References rpwa::interactionVertex::inParticles().

Referenced by dump(), epsilon(), initKinematicsData(), nu(), print(), printPointers(), productionAmp(), readKinematicsData(), revertMomenta(), s(), xBj(), and y().

void interactionVertex::transformOutParticles ( const TLorentzRotation &  L )

inherited

applies Lorentz-transformation to outgoing particles

Definition at line 148 of file interactionVertex.cc.

References rpwa::interactionVertex::_outParticles, i, and rpwa::interactionVertex::nmbOutParticles().

const particlePtr& rpwa::leptoProductionVertex::virtPhoton ( ) const

inline

returns virtual photon

Definition at line 92 of file leptoProductionVertex.h.

References rpwa::interactionVertex::inParticles().

Referenced by dump(), nu(), print(), printPointers(), productionAmp(), Q2(), readKinematicsData(), referenceLzVec(), revertMomenta(), s(), setXFlavorQN(), xBj(), and y().

double rpwa::leptoProductionVertex::W ( ) const

inline

returns total energy in (virtual photon, target) CM system

Definition at line 107 of file leptoProductionVertex.h.

References s().

double rpwa::leptoProductionVertex::xBj ( ) const

inline

returns Bjorken x

Definition at line 105 of file leptoProductionVertex.h.

References Q2(), target(), and virtPhoton().

Referenced by epsilon().

virtual const particlePtr& rpwa::leptoProductionVertex::XParticle ( ) const

inlinevirtual

returns X particle

Implements rpwa::productionVertex.

Definition at line 83 of file leptoProductionVertex.h.

References rpwa::interactionVertex::outParticles().

Referenced by dump(), print(), printPointers(), productionAmp(), and setXFlavorQN().

double rpwa::leptoProductionVertex::y ( ) const

inline

returns relative energy loss of virtual photon

Definition at line 148 of file leptoProductionVertex.h.

References beamLepton(), target(), and virtPhoton().

Referenced by epsilon().

Member Data Documentation

TVector3 rpwa::leptoProductionVertex::_beamLeptonMomCache

private

caches beam momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data

Definition at line 136 of file leptoProductionVertex.h.

Referenced by operator=(), readKinematicsData(), and revertMomenta().

bool leptoProductionVertex::_debug = false

staticprivate

if set to true, debug messages are printed

Definition at line 141 of file leptoProductionVertex.h.

Referenced by addInParticle(), addOutParticle(), debug(), doClone(), leptoProductionVertex(), readKinematicsData(), revertMomenta(), and setDebug().

std::vector<particlePtr> rpwa::interactionVertex::_inParticles

protectedinherited

array of pointers to incoming particles

Definition at line 112 of file interactionVertex.h.

Referenced by rpwa::interactionVertex::addInParticle(), rpwa::interactionVertex::clear(), rpwa::interactionVertex::dump(), rpwa::interactionVertex::inParticles(), rpwa::interactionVertex::nmbInParticles(), rpwa::interactionVertex::operator=(), rpwa::interactionVertex::print(), and rpwa::interactionVertex::printPointers().

double rpwa::leptoProductionVertex::_longPol

private

longitudinal beam polarization

Definition at line 133 of file leptoProductionVertex.h.

Referenced by beamPol(), print(), productionAmp(), and setBeamPol().

int rpwa::leptoProductionVertex::_nmbProdKinPart

private

number of production kinematics particles in input data arrays

Definition at line 135 of file leptoProductionVertex.h.

Referenced by initKinematicsData(), and readKinematicsData().

std::vector<particlePtr> rpwa::interactionVertex::_outParticles

protectedinherited

array of pointers to outgoing particles

Definition at line 113 of file interactionVertex.h.

Referenced by rpwa::interactionVertex::addOutParticle(), rpwa::interactionVertex::clear(), rpwa::interactionVertex::dump(), rpwa::interactionVertex::nmbOutParticles(), rpwa::interactionVertex::operator=(), rpwa::interactionVertex::outParticles(), rpwa::interactionVertex::print(), rpwa::interactionVertex::printPointers(), and rpwa::interactionVertex::transformOutParticles().

TVector3 rpwa::leptoProductionVertex::_recoilMomCache

private

caches recoil momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data

Definition at line 138 of file leptoProductionVertex.h.

Referenced by operator=(), readKinematicsData(), and revertMomenta().

TVector3 rpwa::leptoProductionVertex::_scatteredLeptonMomCache

private

caches beam momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data

Definition at line 137 of file leptoProductionVertex.h.

Referenced by operator=(), readKinematicsData(), and revertMomenta().

TVector3 rpwa::leptoProductionVertex::_targetMomCache

private

caches target momentum of last event read from input data; allows to "reset" kinematics for multiple passes over the same data

Definition at line 139 of file leptoProductionVertex.h.

Referenced by operator=(), readKinematicsData(), and revertMomenta().

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

• leptoProductionVertex.h
• leptoProductionVertex.cc