EvtVll Class Reference

#include <EvtVll.hh>

Inheritance diagram for EvtVll:

Public Member Functions
	EvtVll ()
virtual	~EvtVll ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	initProbMax ()
void	init ()
void	decay (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 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 EvtVll.hh.

Constructor & Destructor Documentation

EvtVll()

EvtVll::EvtVll ( )

inline

Definition at line 32 of file EvtVll.hh.

{}

Referenced by clone().

~EvtVll()

EvtVll::~EvtVll ( )

virtual

Definition at line 35 of file EvtVll.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtVll::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 44 of file EvtVll.cc.

                           {
 
  return new EvtVll;
 
}

decay()

void EvtVll::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 69 of file EvtVll.cc.

                                {
 
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *l1, *l2;
  l1 = p->getDaug(0);
  l2 = p->getDaug(1);
 
  EvtVector4C l11, l12, l21, l22;
  l11=EvtLeptonVCurrent(l1->spParent(0),l2->spParent(0));
  l12=EvtLeptonVCurrent(l1->spParent(0),l2->spParent(1));
  l21=EvtLeptonVCurrent(l1->spParent(1),l2->spParent(0));
  l22=EvtLeptonVCurrent(l1->spParent(1),l2->spParent(1));
 
  EvtVector4C eps0=p->eps(0);
  EvtVector4C eps1=p->eps(1);
  EvtVector4C eps2=p->eps(2);
 
  double M2=p->mass();
  M2*=M2;
  double m2=l1->mass();
  m2*=m2;
 
  double norm=1.0/sqrt(2*M2+4*m2-4*m2*m2/M2);
 
  vertex(0,0,0,norm*(eps0*l11));
  vertex(0,0,1,norm*(eps0*l12));
  vertex(0,1,0,norm*(eps0*l21));
  vertex(0,1,1,norm*(eps0*l22));
  
  vertex(1,0,0,norm*(eps1*l11));
  vertex(1,0,1,norm*(eps1*l12));
  vertex(1,1,0,norm*(eps1*l21));
  vertex(1,1,1,norm*(eps1*l22));
  
  vertex(2,0,0,norm*(eps2*l11));   
  vertex(2,0,1,norm*(eps2*l12));
  vertex(2,1,0,norm*(eps2*l21));
  vertex(2,1,1,norm*(eps2*l22));
  
  return;
 
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 37 of file EvtVll.cc.

                                         {
 
  model_name="VLL";     
 
}

init()

void EvtVll::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 50 of file EvtVll.cc.

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

initProbMax()

void EvtVll::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 63 of file EvtVll.cc.

                        {
 
  setProbMax(1.0);
 
}

---

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

• EvtVll.hh
• EvtVll.cc