EvtStringParticle.cc

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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: EvtStringParticle.cc
//
// Description: Class to describe the partons that are produced in JetSet.
//
// Modification history:
//
//    RYD       Febuary 27,1998       Module created
//
//------------------------------------------------------------------------
// 
#include "EvtGenBase/EvtPatches.hh"
#include <iostream>
#include <math.h>
#include <stdlib.h>
#include "EvtGenBase/EvtStringParticle.hh"
#include "EvtGenBase/EvtVector4R.hh"
 
 
EvtStringParticle::~EvtStringParticle(){
 
  if (_npartons!=0){
    
    delete [] _p4partons;
    delete [] _idpartons;
    
  }
 
}
 
 
EvtStringParticle::EvtStringParticle(){
 
  _p4partons=0;
  _idpartons=0;
  _npartons=0;
 
  return;
  
}
 
void EvtStringParticle::init(EvtId id, const EvtVector4R& p4){
 
  _validP4=true;
  setp(p4);
  setpart_num(id);
 
}
 
 
void EvtStringParticle::initPartons(int npartons,
                  EvtVector4R* p4partons,EvtId* idpartons){
 
  _p4partons = new EvtVector4R[npartons];
  _idpartons = new EvtId[npartons];
 
  int i;
 
  _npartons=npartons;
 
  for(i=0;i<npartons;i++){
 
    _p4partons[i]=p4partons[i];
    _idpartons[i]=idpartons[i];
 
  }
 
}
 
int EvtStringParticle::getNPartons(){
 
  return _npartons;
 
}
 
EvtId EvtStringParticle::getIdParton(int i){
 
  return _idpartons[i];
 
}
 
EvtVector4R EvtStringParticle::getP4Parton(int i){
 
  return _p4partons[i];
 
}
  
EvtSpinDensity EvtStringParticle::rotateToHelicityBasis() const{
 
  report(ERROR,"EvtGen") << "rotateToHelicityBasis not implemented for strin particle."; 
  report(ERROR,"EvtGen") << "Will terminate execution."; 
 
  ::abort();
 
  EvtSpinDensity rho;
  return rho;
 
}
 
EvtSpinDensity EvtStringParticle::rotateToHelicityBasis(double alpha,
                              double beta,
                              double gamma) const{
 
  report(ERROR,"EvtGen") << "rotateToHelicityBasis(alpha,beta,gamma) not implemented for string particle."; 
  report(ERROR,"EvtGen") << "Will terminate execution."; 
 
  ::abort();
 
  EvtSpinDensity rho;
  return rho;
 
}