G4QGSBuilder.cc

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// $Id: G4QGSBuilder.cc 66892 2013-01-17 10:57:59Z gunter $
//
//---------------------------------------------------------------------------
//
// ClassName:  G4QGSBuilder
//
// Author: 28 June 2009 V.Ivanchenko
//
// Modified:
//
//----------------------------------------------------------------------------
//

#include "G4QGSBuilder.hh"
#include "G4ExcitedStringDecay.hh"
#include "G4QuasiElasticChannel.hh"
#include "G4TheoFSGenerator.hh"
#include "G4GeneratorPrecompoundInterface.hh"
#include "G4QGSMFragmentation.hh"
#include "G4ExcitedStringDecay.hh"
#include "G4BinaryCascade.hh"
#include "G4PreCompoundModel.hh"
#include "G4ExcitationHandler.hh"


G4QGSBuilder::G4QGSBuilder(const G4String& aName, G4PreCompoundModel* p,
         G4bool quasiel) 
  : G4VHadronModelBuilder(aName), 
    theQGStringModel(0), theQGStringDecay(0), theQuasiElastic(0), 
    thePreCompound(p),theQGSM(0), 
    quasielFlag(quasiel)
{}

G4QGSBuilder::~G4QGSBuilder() 
{
  delete theQuasiElastic;
  delete theQGStringDecay;
  delete theQGStringModel;
  delete theQGSM;
}                                     

G4HadronicInteraction* G4QGSBuilder::BuildModel()
{
  G4TheoFSGenerator* theQGSModel = new G4TheoFSGenerator(GetName());
  theQGStringModel  = new G4QGSModel< G4QGSParticipants >;
  theQGSM = new G4QGSMFragmentation();
  theQGStringDecay  = new G4ExcitedStringDecay(theQGSM);
  theQGStringModel->SetFragmentationModel(theQGStringDecay);
  theQGSModel->SetHighEnergyGenerator(theQGStringModel);

  if(quasielFlag) {
    theQuasiElastic = new G4QuasiElasticChannel();
    theQGSModel->SetQuasiElasticChannel(theQuasiElastic);
  }

  if(!thePreCompound) {
    thePreCompound = new G4PreCompoundModel(new G4ExcitationHandler());
  }

  if(GetName() == "QGSB") {
    G4BinaryCascade* bic = new G4BinaryCascade();
    bic->SetDeExcitation(thePreCompound);
    theQGSModel->SetTransport(bic);

  } else {
    G4GeneratorPrecompoundInterface* pint = new G4GeneratorPrecompoundInterface();
    pint->SetDeExcitation(thePreCompound);
    theQGSModel->SetTransport(pint);
  }

  return theQGSModel;
}