EvtPycont Class Reference

#include <EvtPycont.hh>

Inheritance diagram for EvtPycont:

Public Member Functions
	EvtPycont ()
virtual	~EvtPycont ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	init ()
void	initProbMax ()
void	decay (EvtParticle *p)
Public Member Functions inherited from EvtDecayIncoherent
void	makeDecay (EvtParticle *p)
virtual	~EvtDecayIncoherent ()
void	setDaughterSpinDensity (int daughter)
int	isDaughterSpinDensitySet (int daughter)
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 EvtDecayBase
bool	_daugsDecayedByParentModel

Detailed Description

Definition at line 28 of file EvtPycont.hh.

Constructor & Destructor Documentation

EvtPycont()

EvtPycont::EvtPycont ( )

inline

Definition at line 32 of file EvtPycont.hh.

{}

Referenced by clone().

~EvtPycont()

EvtPycont::~EvtPycont ( )

virtual

Definition at line 75 of file EvtPycont.cc.

                      {
  //  int i=1;
  //  pystat_(i);
} 

Member Function Documentation

clone()

EvtDecayBase * EvtPycont::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 85 of file EvtPycont.cc.

{
  return new EvtPycont;
}

decay()

void EvtPycont::decay ( EvtParticle *  p )

virtual

Implements EvtDecayBase.

Definition at line 130 of file EvtPycont.cc.

{
 
  double energy=p->mass();
  cbbeam_.maximum = energy;  //ini. parp(171), see EvtPythia.cc
 
  //std::cout<<"energy= "<<energy<<std::endl;
 
  if(energy==0){std::cout<<"Particle "<<EvtPDL::name(p->getId())<<" has zero mass"<<std::endl;abort();}
  EvtPythia::pythiaInit(0);//init. for the firt events
  int mydummy=0;
  initpythia_(&mydummy);  //init. energy event by event
 
  EvtVector4R p4[100];
  
  
  int i,more,nson;
  int ndaugjs;
  int kf[100];
  EvtId id[100];
  int type[MAX_DAUG]; 
  
  double px[100],py[100],pz[100],e[100];
  
  if ( p->getNDaug() != 0 ) { return;}
  do{
   EvtPythia::pythiacont(&energy,&ndaugjs,kf,px,py,pz,e);
    
    double toteng=0;
 
    for(i=0;i<ndaugjs;i++)
      {
       
        id[i]=EvtPDL::evtIdFromStdHep(kf[i]);
  
        type[i]=EvtPDL::getSpinType(id[i]);
  
        //std::cout<<"i, id[i] "<<i<<" "<<EvtPDL::getStdHep(id[i])<<std::endl;
   
        // have to protect against negative mass^2 for massless particles
        // i.e. neutrinos and photons.
        // this is uggly but I need to fix it right now....
        toteng += e[i];
        if (px[i]*px[i]+py[i]*py[i]+pz[i]*pz[i]>=e[i]*e[i])
          e[i]=sqrt(px[i]*px[i]+py[i]*py[i]+pz[i]*pz[i])+0.0000000000001;
    
        p4[i].set(e[i],px[i],py[i],pz[i]);
 
      }
    //if( fabs(toteng-energy)>0.001 ) std::cout<<"Total energy of pythia decayed particle is larger than parent energy"<<std::endl;
  
    int channel=EvtDecayTable::inChannelList(p->getId(),ndaugjs,id);
        
    more=((channel!=-1)&&(channel!=p->getChannel()) );
    //std::cout<<"more="<<more<<std::endl;
        
  }while(more);
        
  p->makeDaughters(ndaugjs,id);
        
  for(i=0;i<ndaugjs;i++)
    p->getDaug(i)->init( id[i], p4[i] );
        
  if(energy<2.0) { EvtGlobalSet::ConExcPythia=0;}else{EvtGlobalSet::ConExcPythia=1;} //cut off for minimum Mhad
  return ;
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 80 of file EvtPycont.cc.

{
  model_name="PYCONT";  
}

init()

void EvtPycont::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 90 of file EvtPycont.cc.

{
  // check that there are 1 argument
  if ( !(getNArg() == 12 || getNArg() == 0 || getNArg() == 1) ) {
    report(ERROR,"EvtGen") << "EvtPYCONT expects "
               << " 12 arguments (d u s c b t e nu_e mu nu_mu tau nu_tau) but found: "
               << getNArg() <<endl;
 
  }
  checkNArg(0,1,12);
  isrflag_.myisr=1; //default value, turn on ISR
   for( int i=0; i<18; i++) decaych_.dc[i]=0;
   if ( getNArg() == 12 ) {
     decaych_.dc[0]=(int)getArg(0);
     decaych_.dc[1]=(int)getArg(1);
     decaych_.dc[2]=(int)getArg(2);
     decaych_.dc[3]=(int)getArg(3);
     decaych_.dc[4]=(int)getArg(4);
     decaych_.dc[5]=(int)getArg(5);
     decaych_.dc[10]=(int)getArg(6);
     decaych_.dc[11]=(int)getArg(7);
     decaych_.dc[12]=(int)getArg(8);
     decaych_.dc[13]=(int)getArg(9);
     decaych_.dc[14]=(int)getArg(10);
     decaych_.dc[15]=(int)getArg(11);
   } else if(getNArg()==1){
     isrflag_.myisr=(int)getArg(0);
     decaych_.dc[0]=1;
     decaych_.dc[1]=1;
     decaych_.dc[2]=1;
     decaych_.dc[3]=1;
   }
 
}

initProbMax()

void EvtPycont::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 125 of file EvtPycont.cc.

{
  noProbMax();
}

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

• EvtPycont.hh
• EvtPycont.cc