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 "EvtStringParticle.hh"
#include "EvtPatches.hh"
#include "EvtVector4R.hh"
#include <iostream>
#include <math.h>
#include <stdlib.h>
 
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;
}