G4HadronPhysicsQGSP_BERT.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:   G4HadronPhysicsQGSP_BERT
//
// Author: 2002 J.P. Wellisch
//
// Modified:
// 23.11.2005 G.Folger: migration to non static particles
// 08.06.2006 V.Ivanchenko: remove stopping
// 20.06.2006 G.Folger: Bertini applies to Kaons, i.e. use SetMinEnergy instead of SetMinPionEnergy
// 25.04.2007 G.Folger: Add code for quasielastic
// 10.12.2007 G.Folger: Add projectilediffrative option for proton/neutron, off by default
// 31.10.2012 A.Ribon: Use G4MiscBuilder
// 19.03.2013 A.Ribon: Replace LEP with FTFP
// 05.05.2020 A.Ribon: Use QGSP for antibaryons at high energies
// 07.05.2020 A.Ribon: Use QGSP for hyperons (and anti-hyperons) at high energies
//
//----------------------------------------------------------------------------
//
#include <iomanip>   
 
#include "G4HadronPhysicsQGSP_BERT.hh"
 
#include "G4ios.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4ProcessManager.hh"
 
#include "G4PiKBuilder.hh"
#include "G4FTFPPiKBuilder.hh"
#include "G4QGSPPiKBuilder.hh"
#include "G4BertiniPiKBuilder.hh"
 
#include "G4FTFPProtonBuilder.hh"
#include "G4QGSPProtonBuilder.hh"
#include "G4BertiniProtonBuilder.hh"
#include "G4BinaryProtonBuilder.hh"
 
#include "G4FTFPNeutronBuilder.hh"
#include "G4QGSPNeutronBuilder.hh"
#include "G4BertiniNeutronBuilder.hh"
#include "G4BinaryNeutronBuilder.hh"
 
#include "G4MesonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4ShortLivedConstructor.hh"
#include "G4IonConstructor.hh"
 
#include "G4NeutronRadCapture.hh"
#include "G4NeutronInelasticXS.hh"
#include "G4NeutronCaptureXS.hh"
#include "G4ParticleInelasticXS.hh"
#include "G4BGGNucleonInelasticXS.hh"
 
#include "G4PhysListUtil.hh"
#include "G4HadParticles.hh"
#include "G4HadronicParameters.hh"
#include "G4HadronicBuilder.hh"
#include "G4BuilderType.hh"
 
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4HadronPhysicsQGSP_BERT);
 
G4HadronPhysicsQGSP_BERT::G4HadronPhysicsQGSP_BERT(G4int verb)
    :  G4HadronPhysicsQGSP_BERT("hInelastic QGSP_BERT", true)
{
  G4HadronicParameters::Instance()->SetVerboseLevel(verb);
}
 
G4HadronPhysicsQGSP_BERT::G4HadronPhysicsQGSP_BERT(const G4String& name, G4bool)
    :  G4VPhysicsConstructor(name)
{
  SetPhysicsType(bHadronInelastic);
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  minQGSP_proton = minQGSP_neutron = minQGSP_pik = 
    param->GetMinEnergyTransitionQGS_FTF();
  maxFTFP_proton = maxFTFP_neutron = maxFTFP_pik = 
    param->GetMaxEnergyTransitionQGS_FTF();
  minFTFP_proton = minFTFP_neutron = minFTFP_pik = 
    param->GetMinEnergyTransitionFTF_Cascade();
  maxBERT_proton = maxBERT_neutron = maxBERT_pik = 
    param->GetMaxEnergyTransitionFTF_Cascade();
  param->SetEnableBCParticles(true);
}
 
void G4HadronPhysicsQGSP_BERT::CreateModels()
{
  Neutron();
  Proton();
  PiK();
  Others();
}
 
void G4HadronPhysicsQGSP_BERT::Neutron()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  const G4ParticleDefinition* neutron = G4Neutron::Neutron();
  auto inel = new G4HadronInelasticProcess( "neutronInelastic", neutron );
  neutron->GetProcessManager()->AddDiscreteProcess( inel );
 
  G4QGSPNeutronBuilder qgs( QuasiElasticQGS );
  qgs.SetMinEnergy( minQGSP_neutron );
  qgs.Build( inel );
 
  G4FTFPNeutronBuilder ftf( QuasiElasticFTF );
  ftf.SetMinEnergy( minFTFP_neutron );
  ftf.SetMaxEnergy( maxFTFP_neutron );
  ftf.Build( inel );
 
  if ( maxBERT_neutron > minBERT_neutron ) {
    G4BertiniNeutronBuilder bert;
    bert.SetMinEnergy( minBERT_neutron );
    bert.SetMaxEnergy( maxBERT_neutron );
    bert.Build( inel );
  }
  
  if ( maxBIC_neutron > 0.0 ) {
    G4BinaryNeutronBuilder bic;
    bic.SetMinEnergy( minBIC_neutron );
    bic.SetMaxEnergy( maxBIC_neutron );
    bic.Build( inel );
  }
 
  inel->AddDataSet( new G4NeutronInelasticXS() ); 
  if ( useFactorXS ) {
    inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
  }
 
  auto capture = new G4NeutronCaptureProcess( "nCaptureXS" );
  neutron->GetProcessManager()->AddDiscreteProcess(capture);
  capture->RegisterMe( new G4NeutronRadCapture() );
}
 
void G4HadronPhysicsQGSP_BERT::Proton()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  const G4ParticleDefinition* proton = G4Proton::Proton();
  auto inel = new G4HadronInelasticProcess( "protonInelastic", proton );
  proton->GetProcessManager()->AddDiscreteProcess( inel );
 
  G4QGSPProtonBuilder qgs(QuasiElasticQGS);
  qgs.SetMinEnergy(minQGSP_proton);
  qgs.Build( inel );
 
  G4FTFPProtonBuilder ftf(QuasiElasticFTF);
  ftf.SetMinEnergy( minFTFP_proton );
  ftf.SetMaxEnergy( maxFTFP_proton );
  ftf.Build( inel );
 
  if ( maxBERT_proton >  minBERT_proton ) {
    G4BertiniProtonBuilder bert;
    bert.SetMinEnergy( minBERT_proton );
    bert.SetMaxEnergy( maxBERT_proton );
    bert.Build( inel );
  }
 
  if ( maxBIC_proton > 0.0 ) {
    G4BinaryProtonBuilder bic;
    bic.SetMaxEnergy( maxBIC_proton);
    bic.Build( inel );
  }
 
  auto xsinel = new G4BGGNucleonInelasticXS( proton );
  inel->AddDataSet( xsinel );
 
  if ( useFactorXS ) {
    inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
  }
}
 
void G4HadronPhysicsQGSP_BERT::PiK()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  G4PiKBuilder pik;
 
  G4QGSPPiKBuilder qgs( QuasiElasticQGS );
  qgs.SetMinEnergy( minQGSP_pik );
  pik.RegisterMe( &qgs );
 
  G4FTFPPiKBuilder ftf( QuasiElasticFTF );
  ftf.SetMaxEnergy( maxFTFP_pik );
  ftf.SetMinEnergy( minFTFP_pik );
  pik.RegisterMe( &ftf );
 
  G4BertiniPiKBuilder bert;
  bert.SetMaxEnergy( maxBERT_pik );
  pik.RegisterMe( &bert );
 
  // build all models
  pik.Build();
  
  // add cross section factor
  if ( useFactorXS ) {
    const G4ParticleDefinition* pion = G4PionPlus::PionPlus();
    G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess( pion );
    if ( nullptr != inel ) {
      inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
    }
    pion = G4PionMinus::PionMinus();
    inel = G4PhysListUtil::FindInelasticProcess( pion );
    if ( nullptr != inel ) {
      inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
    }
    G4ParticleTable* table = G4ParticleTable::GetParticleTable();
    for ( auto const & pdg : G4HadParticles::GetKaons() ) {
      auto part = table->FindParticle( pdg );
      if ( part == nullptr ) { continue; }
      inel = G4PhysListUtil::FindInelasticProcess(part);
      if ( nullptr != inel ) { 
        inel->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
      }
    }
  }
}
 
void G4HadronPhysicsQGSP_BERT::Others()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
 
  // high energy particles
  if( param->GetMaxEnergy() > param->EnergyThresholdForHeavyHadrons() ) {
 
    // anti light ions
    G4HadronicBuilder::BuildAntiLightIonsFTFP();
 
    // hyperons
    G4HadronicBuilder::BuildHyperonsQGSP_FTFP_BERT(true);
 
    // b-, c- baryons and mesons
    if( param->EnableBCParticles() ) {
      G4HadronicBuilder::BuildBCHadronsQGSP_FTFP_BERT(true);
    }
  }
}
 
void G4HadronPhysicsQGSP_BERT::ConstructParticle()
{
  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();
 
  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();
 
  G4ShortLivedConstructor pShortLivedConstructor;
  pShortLivedConstructor.ConstructParticle();  
 
  G4IonConstructor pIonConstructor;
  pIonConstructor.ConstructParticle();
}
 
void G4HadronPhysicsQGSP_BERT::ConstructProcess()
{
  // allow changing of parameters at PreInit
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  minQGSP_proton = minQGSP_neutron = minQGSP_pik = 
    param->GetMinEnergyTransitionQGS_FTF();
  maxFTFP_proton = maxFTFP_neutron = maxFTFP_pik = 
    param->GetMaxEnergyTransitionQGS_FTF();
  minFTFP_proton = minFTFP_neutron = minFTFP_pik = 
    param->GetMinEnergyTransitionFTF_Cascade();
  maxBERT_proton = maxBERT_neutron = maxBERT_pik =
    param->GetMaxEnergyTransitionFTF_Cascade();
 
  if ( G4Threading::IsMasterThread() && param->GetVerboseLevel() > 0 )
    DumpBanner();
 
  // build models and x-sections
  CreateModels();
}
 
void G4HadronPhysicsQGSP_BERT::DumpBanner()
{
  G4cout << G4endl;
  G4cout << " " << GetPhysicsName() << "  Thresholds: " << G4endl;
  if ( maxBIC_proton > 0.0 ||  maxBIC_neutron > 0.0) {
    G4cout << "    0) between BIC and BERT for p, n over the interval " 
       << minBERT_proton/CLHEP::GeV << " to "
       << maxBIC_proton/CLHEP::GeV << " GeV. " << G4endl;
  }
  G4cout << "    1) between BERT  and FTF/P over the interval " 
     << minFTFP_proton/CLHEP::GeV << " to "
     << maxBERT_proton/CLHEP::GeV << " GeV. " << G4endl;
  G4cout << "    2) between FTF/P and QGS/P over the interval " 
     << minQGSP_proton/CLHEP::GeV << " to "
     << maxFTFP_proton/CLHEP::GeV << " GeV. " << G4endl;
  G4cout << "  -- quasiElastic: " << QuasiElasticQGS << " for QGS "
     << " and " << QuasiElasticFTF << " for FTF" << G4endl;
}