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EvtSecondary.cpp
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EvtSecondary.cpp
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//--------------------------------------------------------------------------
//
// Environment:
// This software is part of the EvtGen package developed jointly
// for the BaBar and CLEO collaborations. If you use all or part
// of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
// Copyright (C) 1998 Caltech, UCSB
//
// Module: EvtSecondary.cc
//
// Description: Class to store the decays of the secondary particles.
//
// Modification history:
//
// RYD March 12, 1998 Module created
//
//------------------------------------------------------------------------
//
#include "EvtGenBase/EvtPatches.hh"
#include "EvtGenBase/EvtPatches.hh"
#include <iostream>
#include "EvtGenBase/EvtParticle.hh"
#include "EvtGenBase/EvtPDL.hh"
#include "EvtGenBase/EvtSecondary.hh"
#include "EvtGenBase/EvtReport.hh"
using std::endl;
using std::ostream;
void EvtSecondary::init(){
_npart=0;
}
int EvtSecondary::getNPart(){
return _npart;
}
void EvtSecondary::createSecondary(int stdhepindex,EvtParticle* prnt){
_stdhepindex[_npart]=stdhepindex;
if (prnt->getNDaug()==0){
_id1[_npart]=0;
_id2[_npart]=0;
_id3[_npart]=0;
_npart++;
return;
}
if (prnt->getNDaug()==1){
_id1[_npart]=EvtPDL::getStdHep(prnt->getDaug(0)->getId());
_id2[_npart]=0;
_id3[_npart]=0;
_npart++;
return;
}
if (prnt->getNDaug()==2){
_id1[_npart]=EvtPDL::getStdHep(prnt->getDaug(0)->getId());
_id2[_npart]=EvtPDL::getStdHep(prnt->getDaug(1)->getId());
_id3[_npart]=0;
_npart++;
return;
}
if (prnt->getNDaug()==3){
_id1[_npart]=EvtPDL::getStdHep(prnt->getDaug(0)->getId());
_id2[_npart]=EvtPDL::getStdHep(prnt->getDaug(1)->getId());
_id3[_npart]=EvtPDL::getStdHep(prnt->getDaug(2)->getId());
_npart++;
return;
}
EvtGenReport(EVTGEN_ERROR,"EvtGen") <<
"More than 3 decay products in a secondary particle!"<<endl;
}
ostream& operator<<(ostream& s, const EvtSecondary& secondary){
s <<endl;
s << "Secondary decays:"<<endl;
int i;
for(i=0;i<secondary._npart;i++){
EvtGenReport(EVTGEN_INFO,"EvtGen") <<i<<" "
<<secondary._stdhepindex[i]<<" "
<<secondary._id1[i]<<" "
<<secondary._id2[i]<<" "
<<secondary._id3[i]<<endl;
}
s<<endl;
return s;
}

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