EvtHypWK Class Reference

#include <EvtHypWK.hh>

Inheritance diagram for EvtHypWK:

Public Member Functions
	EvtHypWK ()
virtual	~EvtHypWK ()
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 EvtHypWK.hh.

Constructor & Destructor Documentation

EvtHypWK()

EvtHypWK::EvtHypWK ( )

inline

Definition at line 32 of file EvtHypWK.hh.

{}

Referenced by clone().

~EvtHypWK()

EvtHypWK::~EvtHypWK ( )

virtual

Definition at line 39 of file EvtHypWK.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtHypWK::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 49 of file EvtHypWK.cc.

                             {
 
  return new EvtHypWK;
 
}

decay()

void EvtHypWK::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 71 of file EvtHypWK.cc.

                                  {
 
  static EvtId PIP=EvtPDL::getId("pi+");
  static EvtId PIM=EvtPDL::getId("pi-");
  static EvtId PI0=EvtPDL::getId("pi0");
  static EvtId PP=EvtPDL::getId("p+");
  static EvtId PM=EvtPDL::getId("anti-p-");
  static EvtId NP=EvtPDL::getId("n0");
  static EvtId NM=EvtPDL::getId("anti-n0");
 
  static EvtId LP=EvtPDL::getId("Lambda0");
  static EvtId LM=EvtPDL::getId("anti-Lambda0");
  static EvtId SPP=EvtPDL::getId("Sigma+");
  static EvtId SPM=EvtPDL::getId("anti-Sigma-");
  static EvtId SMP=EvtPDL::getId("Sigma-");
  static EvtId SMM=EvtPDL::getId("anti-Sigma+");
 
  static EvtId XP=EvtPDL::getId("Xi-");
  static EvtId XM=EvtPDL::getId("anti-Xi+");
  static EvtId X0P=EvtPDL::getId("Xi0");
  static EvtId X0M=EvtPDL::getId("anti-Xi0");
 
 
  static int count=0;
 
//  if(count==0) findMaxPro(p); //using the default getProbMax() in EvtGenBase/EvtDecayProb.cc 
  count+=1;
 
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *l1, *l2;
  l1 = p->getDaug(0);
  l2 = p->getDaug(1);
  EvtVector4R DRP4=l1->getP4(); //Dirac Daughter
  EvtVector4R MEP4=l2->getP4(); //Meson Daughter
  EvtVector4R PRP4=p->getP4();  //Parent Momentum
  EvtHelSys angles(PRP4,DRP4);   //using helicity sys.angles
  double tht=angles.getHelAng(1);
  double ph =angles.getHelAng(2);
  double gmm=0;
 
  EvtVector4R pDaug=l1->getP4();
  double p3=pDaug.d3mag();
    
 
  double M=p->mass();
  double M2=M*M;
  double m=l1->mass();
  double m2=m*m;
  double theta,phi,alpha,beta,ga;   // the following is the 
 
  EvtId p1,d1,d2;
  p1=p->getId();
  d1=l1->getId();
  d2=l2->getId();
 
  if(p1==XP){ alpha=-0.46;phi=-2.1; }
    else if(p1==XM){alpha=0.46;phi=-2.1;}
    else if(p1==X0P){alpha=-0.41;phi=21.0;}
    else if(p1==X0M){alpha=0.41;phi=21.0; }
    else if(p1==LP){alpha=0.64;phi=-6.5; }
    else if(p1==LM){ alpha=-0.64;phi=-6.5; }
    else if(p1==SMP){alpha=-0.07;phi=10.0;}
    else if(p1==SMM){alpha=0.07;phi=10.0; }
    else if(p1==SPP){                                
      if (d1==PP){  alpha=-0.98;phi=36.0; }
      else if(d1==NP){ alpha=0.07;phi=167.0; }
      else { cout<<"The decay is not discussed."<<endl; }
      } 
    else if(p1==SPM){
      if (d1==PM){  alpha=0.98;phi=36.0; }
      else if(d1==NM){ alpha=-0.07;phi=167.0; }
      else { cout<<"The decay is not discussed."<<endl; }
      }         
  else { cout<<"The decay is not discussed.";
       }
 
  double FP=sqrt((1+alpha)/2.);
  double FM=sqrt((1-alpha)/2.);
 
  vertex(0,0,Djmn(0.5, 0.5, 0.5,ph,tht,gmm)*FP);
  vertex(0,1,Djmn(0.5, 0.5,-0.5,ph,tht,gmm)*FM);
  vertex(1,0,Djmn(0.5,-0.5, 0.5,ph,tht,gmm)*FP);
  vertex(1,1,Djmn(0.5,-0.5,-0.5,ph,tht,gmm)*FM);
 
  return;
 
}

findMaxPro()

void EvtHypWK::findMaxPro

(

EvtParticle *

p

)

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 41 of file EvtHypWK.cc.

                                           {
 
  model_name="HypWK";     
 
}

init()

void EvtHypWK::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 55 of file EvtHypWK.cc.

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

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

• EvtHypWK.hh
• EvtHypWK.cc