#include <EvtP2GC1.hh>

Inheritance diagram for EvtP2GC1:

Public Member Functions
	EvtP2GC1 ()

virtual	~EvtP2GC1 ()

void	getName (std::string &name)

EvtDecayBase *	clone ()

void	decay (EvtParticle *p)

void	init ()

void	initProbMax ()

Public Member Functions inherited from EvtDecayAmp
void	makeDecay (EvtParticle *p)

void	setWeight (double weight)

void	vertex (const EvtComplex &amp)

void	vertex (int i1, const EvtComplex &amp)

void	vertex (int i1, int i2, const EvtComplex &amp)

void	vertex (int i1, int i2, int i3, const EvtComplex &amp)

void	vertex (int *i1, const EvtComplex &amp)

virtual	~EvtDecayAmp ()

Public Member Functions inherited from EvtDecayBase
virtual void	getName (std::string &name)=0

virtual void	decay (EvtParticle *p)=0

virtual void	makeDecay (EvtParticle *p)=0

virtual EvtDecayBase *	clone ()=0

virtual void	init ()

virtual void	initProbMax ()

virtual std::string	commandName ()

virtual void	command (std::string cmd)

double	getProbMax (double prob)

double	resetProbMax (double prob)

	EvtDecayBase ()

virtual	~EvtDecayBase ()

virtual bool	matchingDecay (const EvtDecayBase &other) const

EvtId	getParentId ()

double	getBranchingFraction ()

void	disableCheckQ ()

void	checkQ ()

int	getNDaug ()

EvtId *	getDaugs ()

EvtId	getDaug (int i)

int	getNArg ()

int	getPHOTOS ()

void	setPHOTOS ()

void	setVerbose ()

void	setSummary ()

double *	getArgs ()

std::string *	getArgsStr ()

double	getArg (int j)

std::string	getArgStr (int j)

std::string	getModelName ()

int	getDSum ()

int	summary ()

int	verbose ()

void	saveDecayInfo (EvtId ipar, int ndaug, EvtId *daug, int narg, std::vector< std::string > &args, std::string name, double brfr)

void	printSummary ()

void	setProbMax (double prbmx)

void	noProbMax ()

void	checkNArg (int a1, int a2=-1, int a3=-1, int a4=-1)

void	checkNDaug (int d1, int d2=-1)

void	checkSpinParent (EvtSpinType::spintype sp)

void	checkSpinDaughter (int d1, EvtSpinType::spintype sp)

virtual int	nRealDaughters ()

Additional Inherited Members
Static Public Member Functions inherited from EvtDecayBase
static void	findMasses (EvtParticle *p, int ndaugs, EvtId daugs[10], double masses[10])

static void	findMass (EvtParticle *p)

static double	findMaxMass (EvtParticle *p)

Protected Member Functions inherited from EvtDecayBase
bool	daugsDecayedByParentModel ()

Protected Attributes inherited from EvtDecayAmp
EvtAmp	_amp2

Protected Attributes inherited from EvtDecayBase
bool	_daugsDecayedByParentModel

Detailed Description

Definition at line 28 of file EvtP2GC1.hh.

Constructor & Destructor Documentation

◆ EvtP2GC1()

EvtP2GC1::EvtP2GC1 ( )

inline

Definition at line 32 of file EvtP2GC1.hh.

32{}

Referenced by clone().

◆ ~EvtP2GC1()

EvtP2GC1::~EvtP2GC1 ( )

virtual

Definition at line 36 of file EvtP2GC1.cc.

36{}

Member Function Documentation

◆ clone()

EvtDecayBase * EvtP2GC1::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 45 of file EvtP2GC1.cc.

                             {
 
  return new EvtP2GC1;
 
}

◆ decay()

void EvtP2GC1::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 73 of file EvtP2GC1.cc.

                                   {
 
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *v,*s1;
  EvtVector4R pv,ps,ppr;
 
  v =p->getDaug(0);  //gamma
  s1=p->getDaug(1); //chi_c1
  pv=v->getP4();
  ps=s1->getP4();
  ppr=p->getP4();
 
//  Put phase space results into the daughters.
  EvtHelSys angles(ppr,pv); //using helicity sys. angles
  double theta =angles.getHelAng(1);
  double phi   =angles.getHelAng(2);
  double gamma =0;
  double alpha=-1./3.;
  double A02=sqrt((1+alpha)/2);
  double A00=sqrt((1-alpha)/4);
  double A12=-A02,A11=-A00;
 int j1,j2,j3;
 for(j1=0;j1<=2;){
 for(j2=0;j2<=1;){
 for(j3=0;j3<=2;){
 vertex(j1,j2,j3,0.0);j3++;}
j2++;}
j1++;}
 
 vertex(0,1,2,Djmn(1, 1,-1,phi,theta,gamma)*A12); //helicity for psiprime = 1
 vertex(0,1,1,Djmn(1, 1, 0,phi,theta,gamma)*A11);
 vertex(0,0,2,Djmn(1, 1, 1,phi,theta,gamma)*A02); 
 vertex(0,0,0,Djmn(1, 1, 0,phi,theta,gamma)*A00); 
 
 vertex(1,1,2,Djmn(1,-1,-1,phi,theta,gamma)*A12);  //helicity for psiprime = -1
 vertex(1,1,1,Djmn(1,-1, 0,phi,theta,gamma)*A11);
 vertex(1,0,2,Djmn(1,-1, 1,phi,theta,gamma)*A02);
 vertex(1,0,0,Djmn(1,-1, 0,phi,theta,gamma)*A00);
 
 vertex(2,1,2,Djmn(1, 0,-1,phi,theta,gamma)*A12);  //helicity for psiprime = -1
 vertex(2,1,1,Djmn(1, 0, 0,phi,theta,gamma)*A11);
 vertex(2,0,2,Djmn(1, 0, 1,phi,theta,gamma)*A02);
 vertex(2,0,0,Djmn(1, 0, 0,phi,theta,gamma)*A00);
 
 
 return ;
 
}

◆ getName()

void EvtP2GC1::getName ( std::string & name )

virtual

Implements EvtDecayBase.

Definition at line 38 of file EvtP2GC1.cc.

                                           {
 
  model_name="P2GC1";     
 
}

◆ init()

void EvtP2GC1::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 51 of file EvtP2GC1.cc.

                   {
static EvtId GAM=EvtPDL::getId("gamma");
// check that there are 0 arguments
 checkNArg(0); 
 checkNDaug(2);
 checkSpinParent(EvtSpinType::VECTOR);
 checkSpinDaughter(0,EvtSpinType::PHOTON);
 checkSpinDaughter(1,EvtSpinType::VECTOR);
 if (!(getDaug(0)==GAM)) {
 report(ERROR,"EvtGen") << "EvtP2GC1 generator radiative decays expected "<<endl;
 ::abort();
}
 }

◆ initProbMax()

void EvtP2GC1::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 66 of file EvtP2GC1.cc.

                           {
 
  //Hard coded... should not be hard to calculate...
 setProbMax(1.67);
 
}      

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EvtP2GC1()

◆ ~EvtP2GC1()

Member Function Documentation

◆ clone()

◆ decay()

◆ getName()

◆ init()

◆ initProbMax()