#include <PhotosParticle.h>

Inheritance diagram for Photospp::PhotosParticle:

Public Member Functions
virtual	~PhotosParticle ()

bool	hasDaughters ()

PhotosParticle *	findLastSelf ()

std::vector< PhotosParticle * >	findProductionMothers ()

std::vector< PhotosParticle * >	getDecayTree ()

void	boostToRestFrame (PhotosParticle *boost)

void	boostDaughtersToRestFrame (PhotosParticle *boost)

void	boostFromRestFrame (PhotosParticle *boost)

void	boostDaughtersFromRestFrame (PhotosParticle *boost)

void	boostAlongZ (double pz, double e)

void	rotate (int axis, double phi, int second_axis=Z_AXIS)

void	rotateDaughters (int axis, double phi, int second_axis=Z_AXIS)

double	getRotationAngle (int axis, int second_axis=Z_AXIS)

double	getP ()

double	getP (int axis)

void	setP (int axis, double p_component)

virtual double	getVirtuality ()

virtual bool	checkMomentumConservation ()=0

virtual double	getPx ()=0

virtual double	getPy ()=0

virtual double	getPz ()=0

virtual double	getE ()=0

virtual double	getMass ()=0

virtual void	setPx (double px)=0

virtual void	setPy (double py)=0

virtual void	setPz (double pz)=0

virtual void	setE (double e)=0

virtual void	setMothers (std::vector< PhotosParticle * > mothers)=0

virtual void	setDaughters (std::vector< PhotosParticle * > daughters)=0

virtual void	addDaughter (PhotosParticle *daughter)=0

virtual std::vector < PhotosParticle * >	getMothers ()=0

virtual std::vector < PhotosParticle * >	getDaughters ()=0

virtual std::vector < PhotosParticle * >	getAllDecayProducts ()=0

virtual void	setPdgID (int pdg_id)=0

virtual void	setMass (double mass)=0

virtual void	setStatus (int status)=0

virtual int	getPdgID ()=0

virtual int	getStatus ()=0

virtual int	getBarcode ()=0

virtual PhotosParticle *	createNewParticle (int pdg_id, int status, double mass, double px, double py, double pz, double e)=0

virtual void	createHistoryEntry ()=0

virtual void	createSelfDecayVertex (PhotosParticle *out)=0

virtual void	print ()=0

virtual	~PhotosParticle ()

bool	hasDaughters ()

PhotosParticle *	findLastSelf ()

std::vector< PhotosParticle * >	findProductionMothers ()

std::vector< PhotosParticle * >	getDecayTree ()

void	boostToRestFrame (PhotosParticle *boost)

void	boostDaughtersToRestFrame (PhotosParticle *boost)

void	boostFromRestFrame (PhotosParticle *boost)

void	boostDaughtersFromRestFrame (PhotosParticle *boost)

void	boostAlongZ (double pz, double e)

void	rotate (int axis, double phi, int second_axis=Z_AXIS)

void	rotateDaughters (int axis, double phi, int second_axis=Z_AXIS)

double	getRotationAngle (int axis, int second_axis=Z_AXIS)

double	getP ()

double	getP (int axis)

void	setP (int axis, double p_component)

virtual double	getVirtuality ()

virtual bool	checkMomentumConservation ()=0

virtual double	getPx ()=0

virtual double	getPy ()=0

virtual double	getPz ()=0

virtual double	getE ()=0

virtual double	getMass ()=0

virtual void	setPx (double px)=0

virtual void	setPy (double py)=0

virtual void	setPz (double pz)=0

virtual void	setE (double e)=0

virtual void	setMothers (std::vector< PhotosParticle * > mothers)=0

virtual void	setDaughters (std::vector< PhotosParticle * > daughters)=0

virtual void	addDaughter (PhotosParticle *daughter)=0

virtual std::vector < PhotosParticle * >	getMothers ()=0

virtual std::vector < PhotosParticle * >	getDaughters ()=0

virtual std::vector < PhotosParticle * >	getAllDecayProducts ()=0

virtual void	setPdgID (int pdg_id)=0

virtual void	setMass (double mass)=0

virtual void	setStatus (int status)=0

virtual int	getPdgID ()=0

virtual int	getStatus ()=0

virtual int	getBarcode ()=0

virtual PhotosParticle *	createNewParticle (int pdg_id, int status, double mass, double px, double py, double pz, double e)=0

virtual void	createHistoryEntry ()=0

virtual void	createSelfDecayVertex (PhotosParticle *out)=0

virtual void	print ()=0

Static Public Attributes
static const int	STABLE =1

static const int	DECAYED =2

static const int	HISTORY =3

static const int	X_AXIS =1

static const int	Y_AXIS =2

static const int	Z_AXIS =3

static const int	Z0 = 23

static const int	HIGGS = 25

static const int	HIGGS_H = 35

static const int	HIGGS_A = 36

static const int	HIGGS_PLUS = 37

static const int	HIGGS_MINUS = -37

static const int	W_PLUS = 24

static const int	W_MINUS = -24

static const int	GAMMA = 22

static const int	TAU_PLUS = -15

static const int	TAU_MINUS = 15

static const int	TAU_NEUTRINO = 16

static const int	TAU_ANTINEUTRINO = -16

static const int	MUON_PLUS = -13

static const int	MUON_MINUS = 13

static const int	MUON_NEUTRINO = 14

static const int	MUON_ANTINEUTRINO = -14

static const int	POSITRON = -11

static const int	ELECTRON = 11

static const int	ELECTRON_NEUTRINO = 12

static const int	ELECTRON_ANTINEUTRINO = -12

static const int	UP = 2

static const int	ANTIUP = -2

static const int	DOWN = 1

static const int	ANTIDOWN = -1

static const int	OTHER = 0

Detailed Description

Definition at line 25 of file PhotosParticle.h.

Constructor & Destructor Documentation

virtual Photospp::PhotosParticle::~PhotosParticle ( )

inlinevirtual

Definition at line 125 of file PhotosParticle.h.

125 {};

virtual Photospp::PhotosParticle::~PhotosParticle ( )

inlinevirtual

Definition at line 125 of file 3.52/src/photosCInterfaces/PhotosParticle.h.

125 {};

Member Function Documentation

virtual void Photospp::PhotosParticle::addDaughter ( PhotosParticle * daughter )

pure virtual

Add a new daughter to this particle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::get().

virtual void Photospp::PhotosParticle::addDaughter ( PhotosParticle * daughter )

pure virtual

Add a new daughter to this particle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

void PhotosParticle::boostAlongZ	(	double	boost_pz,
		double	boost_e
	)

Do a Lorenz transformation along the Z axis.

Boost this vector along the Z direction. Assume no momentum components in the X or Y directions.

Definition at line 155 of file PhotosParticle.cxx.

References getE(), getPz(), p, setE(), setPz(), and sqrt().

Referenced by boostFromRestFrame(), and boostToRestFrame().

 {
         // Boost along the Z axis
         double m_tau=sqrt(boost_e*boost_e-boost_pz*boost_pz);
 
         double p=getPz();
         double e=getE();
 
         setPz((boost_e*p + boost_pz*e)/m_tau);
         setE((boost_pz*p + boost_e*e )/m_tau);
 }

void Photospp::PhotosParticle::boostAlongZ	(	double	pz,
		double	e
	)

Do a Lorenz transformation along the Z axis.

void PhotosParticle::boostDaughtersFromRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the lab frame to the rest frame of the parameter PhotosParticle.

Definition at line 63 of file PhotosParticle.cxx.

References getAllDecayProducts(), and hasDaughters().

Referenced by Photospp::PH_HEPEVT_Interface::get().

 {
         if(!hasDaughters()) //if there are no daughters
         return;
 
         // get all daughters, granddaughters, etc. then rotate and boost them
         vector<PhotosParticle*> list = getAllDecayProducts();
         vector<PhotosParticle*>::iterator pcl_itr = list.begin();
 
         for(;pcl_itr != list.end();pcl_itr++)
         {
                 (*pcl_itr)->boostFromRestFrame(tau_momentum);
         }
 
         //checkMomentumConservation();
 }

void Photospp::PhotosParticle::boostDaughtersFromRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the lab frame to the rest frame of the parameter PhotosParticle.

void PhotosParticle::boostDaughtersToRestFrame ( PhotosParticle * boost )

Transform the four momentum of all the daughters recursively into the frame of the "particle" PhotosParticle.

Definition at line 80 of file PhotosParticle.cxx.

References getAllDecayProducts(), and hasDaughters().

Referenced by Photospp::PH_HEPEVT_Interface::get().

 {
         if(!hasDaughters()) //if there are no daughters
         return;
 
         // get all daughters, granddaughters, etc. then rotate and boost them
         vector<PhotosParticle*> list = getAllDecayProducts();
         vector<PhotosParticle*>::iterator pcl_itr = list.begin();
 
         for(;pcl_itr != list.end();pcl_itr++)
         {
                 (*pcl_itr)->boostToRestFrame(tau_momentum);
         }
 
         //checkMomentumConservation();
 }

void Photospp::PhotosParticle::boostDaughtersToRestFrame ( PhotosParticle * boost )

Transform the four momentum of all the daughters recursively into the frame of the "particle" PhotosParticle.

void Photospp::PhotosParticle::boostFromRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the rest frame of the paramter PhotosParticle, back into the lab frame.

void PhotosParticle::boostFromRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the rest frame of the paramter PhotosParticle, back into the lab frame.

Definition at line 114 of file PhotosParticle.cxx.

References boostAlongZ(), getE(), getP(), getRotationAngle(), phi, rotate(), theta, X_AXIS, and Y_AXIS.

Referenced by Photospp::PH_HEPEVT_Interface::get().

 {
         //get the rotation angles
         //and boost z
 
         double theta = tau_momentum->getRotationAngle(Y_AXIS);
         tau_momentum->rotate(Y_AXIS,theta);
 
         double phi = tau_momentum->getRotationAngle(X_AXIS);
         tau_momentum->rotate(Y_AXIS,-theta);
 
         //Now rotate coordinates to get boost in Z direction.
         rotate(Y_AXIS,theta);
         rotate(X_AXIS,phi);
         boostAlongZ(tau_momentum->getP(),tau_momentum->getE());
         rotate(X_AXIS,-phi);
         rotate(Y_AXIS,-theta);
 }

void Photospp::PhotosParticle::boostToRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the lab frome into the rest frame of the paramter PhotosParticle.

void PhotosParticle::boostToRestFrame ( PhotosParticle * boost )

Transform this particles four momentum from the lab frome into the rest frame of the paramter PhotosParticle.

Definition at line 98 of file PhotosParticle.cxx.

References boostAlongZ(), getE(), getP(), getRotationAngle(), phi, rotate(), theta, X_AXIS, and Y_AXIS.

Referenced by Photospp::PH_HEPEVT_Interface::get().

 {
         double theta = tau_momentum->getRotationAngle(Y_AXIS);
         tau_momentum->rotate(Y_AXIS,theta);
 
         double phi = tau_momentum->getRotationAngle(X_AXIS);
         tau_momentum->rotate(Y_AXIS,-theta);
 
         //Now rotate coordinates to get boost in Z direction.
         rotate(Y_AXIS,theta);
         rotate(X_AXIS,phi);
         boostAlongZ(-1*tau_momentum->getP(),tau_momentum->getE());
         rotate(X_AXIS,-phi);
         rotate(Y_AXIS,-theta);
 }

virtual bool Photospp::PhotosParticle::checkMomentumConservation ( )

pure virtual

check that the 4 momentum in conserved at the vertices producing and ending this particle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PhotosBranch::checkMomentumConservation().

virtual bool Photospp::PhotosParticle::checkMomentumConservation ( )

pure virtual

check that the 4 momentum in conserved at the vertices producing and ending this particle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::createHistoryEntry ( )

pure virtual

Create history entry of this particle before modifications of PHOTOS. Implementation of this method depends strongly on the event record.

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::createHistoryEntry ( )

pure virtual

Create history entry of this particle before modifications of PHOTOS. Implementation of this method depends strongly on the event record.

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::get().

virtual PhotosParticle* Photospp::PhotosParticle::createNewParticle	(	int	pdg_id,
		int	status,
		double	mass,
		double	px,
		double	py,
		double	pz,
		double	e
	)

pure virtual

Create a new particle of the same type, with the given properties. The new particle bares no relations to this particle, but it provides a way of creating a intance of the derived class. eg. createNewParticle() is used inside filhep_() so that an eg. PhotosHepMCParticle is created without the method having explicit knowledge of the PhotosHepMCParticle class

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::get().

virtual PhotosParticle* Photospp::PhotosParticle::createNewParticle	(	int	pdg_id,
		int	status,
		double	mass,
		double	px,
		double	py,
		double	pz,
		double	e
	)

pure virtual

Create a new particle of the same type, with the given properties. The new particle bares no relations to this particle, but it provides a way of creating a intance of the derived class. eg. createNewParticle() is used inside filhep_() so that an eg. PhotosHepMCParticle is created without the method having explicit knowledge of the PhotosHepMCParticle class

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::createSelfDecayVertex ( PhotosParticle * out )

pure virtual

Create a self-decay vertex for this particle with 'out' being the outgoing particle in new vertex

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::createSelfDecayVertex ( PhotosParticle * out )

pure virtual

Create a self-decay vertex for this particle with 'out' being the outgoing particle in new vertex

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

PhotosParticle * PhotosParticle::findLastSelf ( )

Traverse the event structure and find the final version of this particle which does not have a particle of it's own type as it's daughter. eg. Generally the final stable copy

Definition at line 16 of file PhotosParticle.cxx.

References getDaughters(), and getPdgID().

 {
         vector<PhotosParticle*> daughters = getDaughters();
         vector<PhotosParticle*>::iterator pcl_itr = daughters.begin();
 
         //get all daughters and look for stable with same pgd id
         for(;pcl_itr != daughters.end();pcl_itr++)
         {
                 if((*pcl_itr)->getPdgID()==this->getPdgID())
                 return (*pcl_itr)->findLastSelf();
         }
 
         return this;
 }

PhotosParticle* Photospp::PhotosParticle::findLastSelf ( )

Traverse the event structure and find the final version of this particle which does not have a particle of it's own type as it's daughter. eg. Generally the final stable copy

std::vector<PhotosParticle *> Photospp::PhotosParticle::findProductionMothers ( )

Traverse the event structure and find the first set of mothers which are not of the same type as this particle.

vector< PhotosParticle * > PhotosParticle::findProductionMothers ( )

Traverse the event structure and find the first set of mothers which are not of the same type as this particle.

Definition at line 31 of file PhotosParticle.cxx.

References getMothers(), and getPdgID().

Referenced by Photospp::PhotosBranch::PhotosBranch().

 {
         vector<PhotosParticle*> mothers = getMothers();
         vector<PhotosParticle*>::iterator pcl_itr = mothers.begin();
 
         //get all mothers and check none have pdg id of this one
         for(;pcl_itr != mothers.end();pcl_itr++)
         {
                 if((*pcl_itr)->getPdgID()==this->getPdgID())
                 return (*pcl_itr)->findProductionMothers();
         }
         return mothers;
 }

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getAllDecayProducts ( )

pure virtual

Returns all particles in the decay tree of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by boostDaughtersFromRestFrame(), and boostDaughtersToRestFrame().

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getAllDecayProducts ( )

pure virtual

Returns all particles in the decay tree of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual int Photospp::PhotosParticle::getBarcode ( )

pure virtual

Get the barcode of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

Referenced by Photospp::PhotosHEPEVTParticle::addDaughter(), Photospp::PhotosBranch::createBranches(), getDecayTree(), and Photospp::PhotosBranch::process().

virtual int Photospp::PhotosParticle::getBarcode ( )

pure virtual

Get the barcode of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getDaughters ( )

pure virtual

Returns the daughters of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getDaughters ( )

pure virtual

Returns the daughters of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PhotosEvent::filterParticles(), findLastSelf(), Photospp::PH_HEPEVT_Interface::get(), getDecayTree(), hasDaughters(), Photospp::PhotosBranch::PhotosBranch(), and rotateDaughters().

vector< PhotosParticle * > PhotosParticle::getDecayTree ( )

Return whole decay tree starting from this particle

Definition at line 45 of file PhotosParticle.cxx.

References getBarcode(), getDaughters(), getDecayTree(), getMothers(), i, p, and tree.

Referenced by Photospp::PhotosBranch::createBranches(), getDecayTree(), and Photospp::Photos::processBranch().

 {
         vector<PhotosParticle *> particles;
         particles.push_back(this);
         vector<PhotosParticle *> daughters = getDaughters();
         for(int i=0;i<(int)daughters.size();i++)
         {
                 // Check if we are the first mother of each daughters
                 // If not - skip this daughter
                 PhotosParticle *p = daughters.at(i);
                 vector<PhotosParticle *> mothers = p->getMothers();
                 if(mothers.size()>1 && mothers.at(0)->getBarcode()!=getBarcode()) continue;
                 vector<PhotosParticle *> tree = p->getDecayTree();
                 particles.insert(particles.end(),tree.begin(),tree.end());
         }
         return particles;
 }

std::vector<PhotosParticle *> Photospp::PhotosParticle::getDecayTree ( )

Return whole decay tree starting from this particle

virtual double Photospp::PhotosParticle::getE ( )

pure virtual

Returns the energy component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), boostAlongZ(), boostFromRestFrame(), boostToRestFrame(), Photospp::PH_HEPEVT_Interface::get(), and getVirtuality().

virtual double Photospp::PhotosParticle::getE ( )

pure virtual

Returns the energy component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual double Photospp::PhotosParticle::getMass ( )

pure virtual

Get the invariant mass from the event record

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual double Photospp::PhotosParticle::getMass ( )

pure virtual

Get the invariant mass from the event record

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle().

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getMothers ( )

pure virtual

Returns the mothers of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual std::vector<PhotosParticle*> Photospp::PhotosParticle::getMothers ( )

pure virtual

Returns the mothers of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PhotosHEPEVTParticle::addDaughter(), findProductionMothers(), and getDecayTree().

double PhotosParticle::getP ( )

Get scalar momentum

Definition at line 202 of file PhotosParticle.cxx.

References getPx(), getPy(), getPz(), and sqrt().

Referenced by boostFromRestFrame(), boostToRestFrame(), getRotationAngle(), getVirtuality(), and rotate().

 {
         return sqrt(getPx()*getPx()+getPy()*getPy()+getPz()*getPz());
 }

double Photospp::PhotosParticle::getP ( )

Get scalar momentum

double Photospp::PhotosParticle::getP ( int axis )

Get momentum component in the direction of "axis" (x,y,z)

double PhotosParticle::getP ( int axis )

Get momentum component in the direction of "axis" (x,y,z)

Definition at line 207 of file PhotosParticle.cxx.

References getPx(), getPy(), getPz(), X_AXIS, Y_AXIS, and Z_AXIS.

 {
         if(axis==X_AXIS) return getPx();
         if(axis==Y_AXIS) return getPy();
         if(axis==Z_AXIS) return getPz();
         return 0;
 }

virtual int Photospp::PhotosParticle::getPdgID ( )

pure virtual

Get the PDG ID code of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), Photospp::PhotosBranch::checkList(), Photospp::PhotosBranch::createBranches(), Photospp::PhotosEvent::filterParticles(), findLastSelf(), findProductionMothers(), and Photospp::PH_HEPEVT_Interface::get().

virtual int Photospp::PhotosParticle::getPdgID ( )

pure virtual

Get the PDG ID code of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual double Photospp::PhotosParticle::getPx ( )

pure virtual

Returns the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), Photospp::PH_HEPEVT_Interface::get(), and getP().

virtual double Photospp::PhotosParticle::getPx ( )

pure virtual

Returns the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual double Photospp::PhotosParticle::getPy ( )

pure virtual

Returns the py component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual double Photospp::PhotosParticle::getPy ( )

pure virtual

Returns the py component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), Photospp::PH_HEPEVT_Interface::get(), and getP().

virtual double Photospp::PhotosParticle::getPz ( )

pure virtual

Returns the pz component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), boostAlongZ(), Photospp::PH_HEPEVT_Interface::get(), and getP().

virtual double Photospp::PhotosParticle::getPz ( )

pure virtual

Returns the pz component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

double PhotosParticle::getRotationAngle	(	int	axis,
		int	second_axis = `Z_AXIS`
	)

Returns the angle around the axis "axis" needed to rotate the four momenum is such a way that the non-Z component disappears and Z>0. This is used to in rotating the coordinate system into a frame with only a Z component before calling boostAlongZ().

Get the angle needed to rotate the 4 momentum vector so that the x (y) component disapears. (and the Z component is > 0)

if(getP(axis)==0){ if(getPz()>0) return 0; //no rotaion required else return M_PI; }

Definition at line 135 of file PhotosParticle.cxx.

References getP().

Referenced by boostFromRestFrame(), and boostToRestFrame().

 {
         if(getP(second_axis)==0)
         {
                 if(getP(axis)>0) return -M_PI/2.0;
                 else             return  M_PI/2.0;
         }
         if(getP(second_axis)>0) return     -atan(getP(axis)/getP(second_axis));
         else                    return M_PI-atan(getP(axis)/getP(second_axis));
 
 }

double Photospp::PhotosParticle::getRotationAngle	(	int	axis,
		int	second_axis = `Z_AXIS`
	)

Returns the angle around the axis "axis" needed to rotate the four momenum is such a way that the non-Z component disappears and Z>0. This is used to in rotating the coordinate system into a frame with only a Z component before calling boostAlongZ().

virtual int Photospp::PhotosParticle::getStatus ( )

pure virtual

Get the status of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

Referenced by Photospp::PH_HEPEVT_Interface::add_particle(), and Photospp::PhotosEvent::filterParticles().

virtual int Photospp::PhotosParticle::getStatus ( )

pure virtual

Get the status of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual double Photospp::PhotosParticle::getVirtuality ( )

virtual

Get sqrt(e^2-p^2)

double PhotosParticle::getVirtuality ( )

virtual

Get sqrt(e^2-p^2)

Definition at line 193 of file PhotosParticle.cxx.

References getE(), getP(), and sqrt().

Referenced by Photospp::PH_HEPEVT_Interface::add_particle().

 {
         double e_sq=getE()*getE();
         double p_sq=getP()*getP();
 
         if(e_sq>p_sq) return    sqrt(e_sq-p_sq);
         else          return -1*sqrt(p_sq-e_sq); //if it's negative
 }

bool PhotosParticle::hasDaughters ( )

Return whether the particle has any chidren

Definition at line 10 of file PhotosParticle.cxx.

References getDaughters().

Referenced by boostDaughtersFromRestFrame(), boostDaughtersToRestFrame(), Photospp::PhotosHEPEVTParticle::getAllDecayProducts(), Photospp::PhotosHepMCParticle::getAllDecayProducts(), and rotateDaughters().

 {
         if(getDaughters().size()==0) return false;
         else                         return true;
 }

bool Photospp::PhotosParticle::hasDaughters ( )

Return whether the particle has any chidren

virtual void Photospp::PhotosParticle::print ( )

pure virtual

Print some information about this particle to standard output

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::print ( )

pure virtual

Print some information about this particle to standard output

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

void PhotosParticle::rotate	(	int	axis,
		double	theta,
		int	second_axis = `Z_AXIS`
	)

rotate this particles 4-momentum by an angle phi from the axisis "axis" towards the axis "second_axis".

Rotation around an axis X or Y

Definition at line 168 of file PhotosParticle.cxx.

References cos(), getP(), setP(), and sin().

Referenced by boostFromRestFrame(), and boostToRestFrame().

 {
         double temp_px=getP(axis);
         double temp_pz=getP(second_axis);
         setP(axis,cos(theta)*temp_px + sin(theta)*temp_pz);
         setP(second_axis,-sin(theta)*temp_px + cos(theta)*temp_pz);
 }

void Photospp::PhotosParticle::rotate	(	int	axis,
		double	phi,
		int	second_axis = `Z_AXIS`
	)

rotate this particles 4-momentum by an angle phi from the axisis "axis" towards the axis "second_axis".

void PhotosParticle::rotateDaughters	(	int	axis,
		double	phi,
		int	second_axis = `Z_AXIS`
	)

rotate 4-momentum of daughters of this particle by an angle phi from the axisis "axis" towards the axis "second_axis".

Definition at line 176 of file PhotosParticle.cxx.

References getDaughters(), and hasDaughters().

 {
         if(!hasDaughters()) //if there are no daughters
         return;
 
         vector<PhotosParticle*> daughters = getDaughters();
         vector<PhotosParticle*>::iterator pcl_itr = daughters.begin();
 
         //get all daughters then rotate and boost them.
         for(;pcl_itr != daughters.end();pcl_itr++)
         {
                 (*pcl_itr)->rotate(axis,theta,second_axis);
                 (*pcl_itr)->rotateDaughters(axis,theta,second_axis);
         }
         //checkMomentumConservation();
 }

void Photospp::PhotosParticle::rotateDaughters	(	int	axis,
		double	phi,
		int	second_axis = `Z_AXIS`
	)

rotate 4-momentum of daughters of this particle by an angle phi from the axisis "axis" towards the axis "second_axis".

virtual void Photospp::PhotosParticle::setDaughters ( std::vector< PhotosParticle * > daughters )

pure virtual

Set the daughters of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setDaughters ( std::vector< PhotosParticle * > daughters )

pure virtual

Set the daughters of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setE ( double e )

pure virtual

Set the energy component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by boostAlongZ(), and Photospp::PH_HEPEVT_Interface::get().

virtual void Photospp::PhotosParticle::setE ( double e )

pure virtual

Set the energy component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setMass ( double mass )

pure virtual

Set the mass of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual void Photospp::PhotosParticle::setMass ( double mass )

pure virtual

Set the mass of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual void Photospp::PhotosParticle::setMothers ( std::vector< PhotosParticle * > mothers )

pure virtual

Set the mothers of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setMothers ( std::vector< PhotosParticle * > mothers )

pure virtual

Set the mothers of this particle via a vector of PhotosParticle

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PhotosHEPEVTParticle::addDaughter().

void Photospp::PhotosParticle::setP	(	int	axis,
		double	p_component
	)

Set momentum component in the direction of "axis" (x,y,z)

void PhotosParticle::setP	(	int	axis,
		double	p_component
	)

Set momentum component in the direction of "axis" (x,y,z)

Definition at line 215 of file PhotosParticle.cxx.

References setPx(), setPy(), setPz(), X_AXIS, Y_AXIS, and Z_AXIS.

Referenced by rotate().

 {
         if(axis==X_AXIS) setPx(p_component);
         if(axis==Y_AXIS) setPy(p_component);
         if(axis==Z_AXIS) setPz(p_component);
 }

virtual void Photospp::PhotosParticle::setPdgID ( int pdg_id )

pure virtual

Set the PDG ID code of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual void Photospp::PhotosParticle::setPdgID ( int pdg_id )

pure virtual

Set the PDG ID code of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual void Photospp::PhotosParticle::setPx ( double px )

pure virtual

Set the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setPx ( double px )

pure virtual

Set the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::get(), and setP().

virtual void Photospp::PhotosParticle::setPy ( double py )

pure virtual

Set the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by Photospp::PH_HEPEVT_Interface::get(), and setP().

virtual void Photospp::PhotosParticle::setPy ( double py )

pure virtual

Set the px component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setPz ( double pz )

pure virtual

Set the pz component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

Referenced by boostAlongZ(), Photospp::PH_HEPEVT_Interface::get(), and setP().

virtual void Photospp::PhotosParticle::setPz ( double pz )

pure virtual

Set the pz component of the four vector

Implemented in Photospp::PhotosHepMCParticle, Photospp::PhotosHepMCParticle, Photospp::PhotosHEPEVTParticle, and Photospp::PhotosHEPEVTParticle.

virtual void Photospp::PhotosParticle::setStatus ( int status )

pure virtual

Set the status of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

virtual void Photospp::PhotosParticle::setStatus ( int status )

pure virtual

Set the status of this particle

Implemented in Photospp::PhotosHEPEVTParticle, Photospp::PhotosHEPEVTParticle, Photospp::PhotosHepMCParticle, and Photospp::PhotosHepMCParticle.

Member Data Documentation

static const int PhotosParticle::ANTIDOWN = -1

static

anti-down quark

Definition at line 119 of file PhotosParticle.h.

static const int PhotosParticle::ANTIUP = -2

static

anti-up quark

Definition at line 113 of file PhotosParticle.h.

static const int PhotosParticle::DECAYED =2

static

Decayed particle status

Definition at line 32 of file PhotosParticle.h.

Referenced by Photospp::PhotosHepMCParticle::setMothers().

static const int PhotosParticle::DOWN = 1

static

down quark

Definition at line 116 of file PhotosParticle.h.

static const int PhotosParticle::ELECTRON = 11

static

e- particle

Definition at line 101 of file PhotosParticle.h.

static const int PhotosParticle::ELECTRON_ANTINEUTRINO = -12

static

e antineutrino particle

Definition at line 107 of file PhotosParticle.h.

static const int PhotosParticle::ELECTRON_NEUTRINO = 12

static

e neutrino particle

Definition at line 104 of file PhotosParticle.h.

static const int PhotosParticle::GAMMA = 22

static

photon

Definition at line 71 of file PhotosParticle.h.

static const int PhotosParticle::HIGGS = 25

static

H particle

Definition at line 50 of file PhotosParticle.h.

static const int PhotosParticle::HIGGS_A = 36

static

A0 particle

Definition at line 56 of file PhotosParticle.h.

static const int PhotosParticle::HIGGS_H = 35

static

H0 particle

Definition at line 53 of file PhotosParticle.h.

static const int PhotosParticle::HIGGS_MINUS = -37

static

H- particle

Definition at line 62 of file PhotosParticle.h.

static const int PhotosParticle::HIGGS_PLUS = 37

static

H+ particle

Definition at line 59 of file PhotosParticle.h.

static const int PhotosParticle::HISTORY =3

static

History particle status

Definition at line 35 of file PhotosParticle.h.

static const int PhotosParticle::MUON_ANTINEUTRINO = -14

static

muon antineutrino particle

Definition at line 95 of file PhotosParticle.h.

static const int PhotosParticle::MUON_MINUS = 13

static

muon- particle

Definition at line 89 of file PhotosParticle.h.

static const int PhotosParticle::MUON_NEUTRINO = 14

static

muon neutrino particle

Definition at line 92 of file PhotosParticle.h.

static const int PhotosParticle::MUON_PLUS = -13

static

muon+ particle

Definition at line 86 of file PhotosParticle.h.

static const int PhotosParticle::OTHER = 0

static

All other particle types

Definition at line 122 of file PhotosParticle.h.

static const int PhotosParticle::POSITRON = -11

static

e+ particle

Definition at line 98 of file PhotosParticle.h.

static const int PhotosParticle::STABLE =1

static

Stable particle status

Definition at line 29 of file PhotosParticle.h.

Referenced by Photospp::PhotosEvent::filterParticles(), and Photospp::PhotosHepMCParticle::setMothers().

static const int PhotosParticle::TAU_ANTINEUTRINO = -16

static

tau antineutrino particle

Definition at line 83 of file PhotosParticle.h.

static const int PhotosParticle::TAU_MINUS = 15

static

tau- particle

Definition at line 77 of file PhotosParticle.h.

static const int PhotosParticle::TAU_NEUTRINO = 16

static

tau neutrino particle

Definition at line 80 of file PhotosParticle.h.

static const int PhotosParticle::TAU_PLUS = -15

static

tau+ particle

Definition at line 74 of file PhotosParticle.h.

static const int PhotosParticle::UP = 2

static

up quark

Definition at line 110 of file PhotosParticle.h.

static const int PhotosParticle::W_MINUS = -24

static

W- particle

Definition at line 68 of file PhotosParticle.h.

static const int PhotosParticle::W_PLUS = 24

static

W+ particle

Definition at line 65 of file PhotosParticle.h.

static const int PhotosParticle::X_AXIS =1

static

X Axis

Definition at line 38 of file PhotosParticle.h.

Referenced by boostFromRestFrame(), boostToRestFrame(), getP(), and setP().

static const int PhotosParticle::Y_AXIS =2

static

Y Axis

Definition at line 41 of file PhotosParticle.h.

Referenced by boostFromRestFrame(), boostToRestFrame(), getP(), and setP().

static const int PhotosParticle::Z0 = 23

static

Z0 particle

Definition at line 47 of file PhotosParticle.h.

static const int PhotosParticle::Z_AXIS =3

static

Z Axis

Definition at line 44 of file PhotosParticle.h.

Referenced by getP(), and setP().

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

Public Member Functions

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation