EvtDeBD Class Reference

#include <EvtDeBD.hh>

Inheritance diagram for EvtDeBD:

Public Member Functions
	EvtDeBD ()
virtual	~EvtDeBD ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
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 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 EvtDeBD.hh.

Constructor & Destructor Documentation

EvtDeBD()

EvtDeBD::EvtDeBD ( )

inline

Definition at line 32 of file EvtDeBD.hh.

{}

Referenced by clone().

~EvtDeBD()

EvtDeBD::~EvtDeBD ( )

virtual

Definition at line 40 of file EvtDeBD.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtDeBD::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 49 of file EvtDeBD.cc.

                            {
 
  return new EvtDeBD;
 
}

decay()

void EvtDeBD::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 74 of file EvtDeBD.cc.

                                 {
 
  static EvtId PIM=EvtPDL::getId("pi-");
  static EvtId PI0=EvtPDL::getId("pi0");
  static EvtId KM=EvtPDL::getId("K-");
 
  static EvtId L0 =EvtPDL::getId("Lambda0");
  static EvtId LB =EvtPDL::getId("anti-Lambda0");
  static EvtId XM =EvtPDL::getId("Xi-");
  static EvtId XMB=EvtPDL::getId("anti-Xi+"); 
  static EvtId X0 =EvtPDL::getId("Xi0");
  static EvtId X0B=EvtPDL::getId("anti-Xi0");
 
  static EvtId OM =EvtPDL::getId("Omega-");
  static EvtId OMB=EvtPDL::getId("anti-Omega+");
 
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *l1, *l2;
  l1 = p->getDaug(0);
  l2 = p->getDaug(1);
 
  EvtId p1,d1,d2;
  p1=p ->getId();
  d1=l1->getId();
  d2=l2->getId();
 
 
  EvtVector4R pDaug=l1->getP4();
  double p3=pDaug.d3mag();
 
  EvtVector4R pv,ps,ppr;
  pv=l1->getP4Lab(); //baryon
  ps=l2->getP4Lab(); //meson
  ppr=p->getP4();
 
  double theta,alpha;
  EvtHelSys angles(ppr,pv);   //using helicity sys.angles
  theta=angles.getHelAng(1);
  double phi  =angles.getHelAng(2);
  double gamma=0;
 
  if((p1==OM)&&(d1==L0)){
    alpha=0.0175;
   }
  else if((p1==OMB)&&(d1==LB)){ 
   alpha=-0.0175;
   }
  else if((p1==OM)&&(d1==X0)){
   alpha=0.09;
   }
  else if((p1==OMB)||(d1==X0B)){
    alpha=-0.09;
   }
  else if((p1==OM)||(d1==XM)){
    alpha=0.05;
   }
  else if((p1==OMB)||(d1==XMB)){
    alpha=-0.05;
   }
 
  double FP,FM;
  if(p1==OM||p1==OMB){
    FM=sqrt((1+alpha)/2.);
    FP=sqrt((1-alpha)/2.);
   }
    else {
    FP=1;FM=1;
     }
 
  vertex(0,0,Djmn(1.5, 0.5, 0.5,phi,theta,gamma)*FP);
  vertex(0,1,Djmn(1.5, 0.5,-0.5,phi,theta,gamma)*FM);
  vertex(1,0,Djmn(1.5, 1.5, 0.5,phi,theta,gamma)*FP);
  vertex(1,1,Djmn(1.5, 1.5,-0.5,phi,theta,gamma)*FM);
  vertex(2,0,Djmn(1.5,-1.5, 0.5,phi,theta,gamma)*FP);
  vertex(2,1,Djmn(1.5,-1.5,-0.5,phi,theta,gamma)*FM);
  vertex(3,0,Djmn(1.5,-0.5, 0.5,phi,theta,gamma)*FP);
  vertex(3,1,Djmn(1.5,-0.5,-0.5,phi,theta,gamma)*FM);
 
  return;
 
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 42 of file EvtDeBD.cc.

                                          {
 
  model_name="DeBD";     
 
}

init()

void EvtDeBD::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 55 of file EvtDeBD.cc.

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

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

• EvtDeBD.hh
• EvtDeBD.cc