EvtHelPPJ Class Reference

#include <EvtHelPPJ.hh>

Inheritance diagram for EvtHelPPJ:

Public Member Functions
	EvtHelPPJ ()
virtual	~EvtHelPPJ ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	init ()
void	decay (EvtParticle *p)
void	findMaxPro (EvtParticle *p)
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	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 EvtHelPPJ.hh.

Constructor & Destructor Documentation

EvtHelPPJ()

EvtHelPPJ::EvtHelPPJ ( )

inline

Definition at line 32 of file EvtHelPPJ.hh.

{}

Referenced by clone().

~EvtHelPPJ()

EvtHelPPJ::~EvtHelPPJ ( )

virtual

Definition at line 38 of file EvtHelPPJ.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtHelPPJ::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 48 of file EvtHelPPJ.cc.

                              {
 
  return new EvtHelPPJ;
 
}

decay()

void EvtHelPPJ::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 69 of file EvtHelPPJ.cc.

                                   {
 
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *l1, *l2,*l3;
  l1 = p->getDaug(0);
  l2 = p->getDaug(1);
  l3 = p->getDaug(2);
  EvtVector4R VP4 =l1->getP4(); //Vector Daughter
  EvtVector4R S1P4=l2->getP4(); //Scalar Daughter
  EvtVector4R S2P4=l3->getP4(); //Scalar Daughter
  EvtVector4R PRP4=p->getP4();  //Parent Momentum
  PRP4.set(1,0);
  PRP4.set(2,0);
  PRP4.set(3,0);
 
  
  double mpipi2=(S1P4+S2P4).mass2();
  double e1pi  =S1P4.get(0);  
  double e2pi  =S2P4.get(0);
  double g0    =0.3;
  double g1    =-0.11;
  double mpi   =0.1396;
  double mpsi  =3.097;
  double epsi  =VP4.get(0);
  double amp1  =(mpipi2-2*mpi*mpi)*g0/2+g1*e1pi*e2pi;
  double amp0  =amp1*epsi/mpsi;
 
 
  EvtHelSys angles(PRP4,VP4);   //using helicity sys.angles
  double tht=angles.getHelAng(1);
  double phi=angles.getHelAng(2);
  double gamma=0;
 
  vertex(0,0,Djmn(1, 1, 1,phi,tht,gamma)*amp1);
  vertex(0,1,Djmn(1, 1,-1,phi,tht,gamma)*amp1);
  vertex(0,2,Djmn(1, 1, 0,phi,tht,gamma)*amp0);
  vertex(1,0,Djmn(1,-1, 1,phi,tht,gamma)*amp1);
  vertex(1,1,Djmn(1,-1,-1,phi,tht,gamma)*amp1);
  vertex(1,2,Djmn(1,-1, 0,phi,tht,gamma)*amp0);
  vertex(2,0,Djmn(1, 0, 1,phi,tht,gamma)*amp1);
  vertex(2,1,Djmn(1, 0,-1,phi,tht,gamma)*amp1);
  vertex(2,2,Djmn(1, 0, 0,phi,tht,gamma)*amp0);
 
  return;
 
}

findMaxPro()

void EvtHelPPJ::findMaxPro

(

EvtParticle *

p

)

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 40 of file EvtHelPPJ.cc.

                                            {
 
  model_name="HelPPJ";     
 
}

init()

void EvtHelPPJ::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 54 of file EvtHelPPJ.cc.

                    {
 
  // check that there are 0 arguments
  checkNArg(0);
  checkNDaug(3);
 
  checkSpinParent(EvtSpinType::VECTOR);
  
  checkSpinDaughter(0,EvtSpinType::VECTOR);
  checkSpinDaughter(1,EvtSpinType::SCALAR);
  checkSpinDaughter(2,EvtSpinType::SCALAR);
 
}

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

• EvtHelPPJ.hh
• EvtHelPPJ.cc