G4HyperonQGSPBuilder.cc

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//---------------------------------------------------------------------------
// ClassName: G4HyperonQGSPBuilder
// Author: Alberto Ribon
// Date: May 2020
// Modified:
//---------------------------------------------------------------------------
 
#include "G4HyperonQGSPBuilder.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4ProcessManager.hh"
#include "G4HadronInelasticProcess.hh"
#include "G4CrossSectionInelastic.hh"
#include "G4ComponentGGHadronNucleusXsc.hh"
#include "G4HadronicParameters.hh"
#include "G4TheoFSGenerator.hh"
#include "G4GeneratorPrecompoundInterface.hh"
#include "G4QGSModel.hh"
#include "G4QGSParticipants.hh"
#include "G4QGSMFragmentation.hh"
#include "G4ExcitedStringDecay.hh"
#include "G4QuasiElasticChannel.hh"
 
 
G4HyperonQGSPBuilder::G4HyperonQGSPBuilder( G4bool quasiElastic ) {
  theHyperonQGSP = new G4TheoFSGenerator( "QGSP" );
  G4QGSModel< G4QGSParticipants >* theStringModel = new G4QGSModel< G4QGSParticipants >;
  G4ExcitedStringDecay* theStringDecay = new G4ExcitedStringDecay( new G4QGSMFragmentation );
  theStringModel->SetFragmentationModel( theStringDecay );
  G4GeneratorPrecompoundInterface* theCascade = new G4GeneratorPrecompoundInterface;
  theHyperonQGSP->SetTransport( theCascade );
  theHyperonQGSP->SetHighEnergyGenerator( theStringModel );
  if ( quasiElastic ) theHyperonQGSP->SetQuasiElasticChannel( new G4QuasiElasticChannel );
  // It is recommended to use QGSP above >~ 12 GeV .
  theMin = G4HadronicParameters::Instance()->GetMinEnergyTransitionQGS_FTF();
  theMax = G4HadronicParameters::Instance()->GetMaxEnergy();
  theHyperonQGSP->SetMinEnergy( theMin );
  theHyperonQGSP->SetMaxEnergy( theMax );  
  theInelasticCrossSection = new G4CrossSectionInelastic( new G4ComponentGGHadronNucleusXsc );
}
 
 
G4HyperonQGSPBuilder::~G4HyperonQGSPBuilder() {}
 
 
void G4HyperonQGSPBuilder::Build( G4HadronInelasticProcess* aP ) {
  theHyperonQGSP->SetMinEnergy( theMin );
  theHyperonQGSP->SetMaxEnergy( theMax );
  aP->RegisterMe( theHyperonQGSP );
  aP->AddDataSet( theInelasticCrossSection );
}