G4HadronPhysicsQGSP_BIC.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:   G4HadronPhysicsQGSP_BIC
//
// Author: 2002 J.P. Wellisch
//
// Modified:
// 23.11.2005 G.Folger: migration to non static particles
// 08.06.2006 V.Ivanchenko: remove stopping
// 25.04.2007 G.Folger: Add code for quasielastic
// 31.10.2012 A.Ribon: Use G4MiscBuilder
// 19.03.2013 A.Ribon: Replace LEP with FTFP and BERT
// 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_BIC.hh"
 
#include "G4PiKBuilder.hh"
#include "G4FTFPPiKBuilder.hh"
#include "G4QGSPPiKBuilder.hh"
#include "G4BertiniPiKBuilder.hh"
 
#include "G4ProtonBuilder.hh"
#include "G4FTFPProtonBuilder.hh"
#include "G4QGSPProtonBuilder.hh"
#include "G4BinaryProtonBuilder.hh"
 
#include "G4NeutronBuilder.hh"
#include "G4FTFPNeutronBuilder.hh"
#include "G4QGSPNeutronBuilder.hh"
#include "G4BinaryNeutronBuilder.hh"
#include "globals.hh"
#include "G4ios.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
 
#include "G4MesonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4ShortLivedConstructor.hh"
#include "G4IonConstructor.hh"
 
#include "G4NeutronRadCapture.hh"
#include "G4NeutronInelasticXS.hh"
#include "G4NeutronCaptureXS.hh"
 
#include "G4PhysListUtil.hh"
#include "G4HadParticles.hh"
#include "G4HadronicParameters.hh"
#include "G4HadronicBuilder.hh"
#include "G4BuilderType.hh"
 
#include "G4PhysicsConstructorFactory.hh"
 
G4_DECLARE_PHYSCONSTR_FACTORY(G4HadronPhysicsQGSP_BIC);
 
G4HadronPhysicsQGSP_BIC::G4HadronPhysicsQGSP_BIC(G4int verb)
    : G4HadronPhysicsQGSP_BIC("hInelastic QGSP_BIC",true) 
{
  G4HadronicParameters::Instance()->SetVerboseLevel(verb);
}
 
G4HadronPhysicsQGSP_BIC::G4HadronPhysicsQGSP_BIC(const G4String& name, G4bool)
    :  G4VPhysicsConstructor(name)
{
  SetPhysicsType(bHadronInelastic);
  QuasiElasticFTF= false;   // Use built-in quasi-elastic (not add-on)
  QuasiElasticQGS= true;    // For QGS, it must use it.
  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();
  maxBIC_proton  = maxBIC_neutron  = maxBERT_pik = 
    param->GetMaxEnergyTransitionFTF_Cascade();
  minBIC_proton  = minBIC_neutron  = 0.0; 
}
 
void G4HadronPhysicsQGSP_BIC::CreateModels()
{
  Neutron();
  Proton();
  Pion();
  Others();
}
 
void G4HadronPhysicsQGSP_BIC::Neutron()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  auto neu = new G4NeutronBuilder;
  AddBuilder(neu);
  auto qgs = new G4QGSPNeutronBuilder(QuasiElasticQGS);
  AddBuilder(qgs);
  qgs->SetMinEnergy(minQGSP_neutron);
  neu->RegisterMe(qgs);
  auto ftf = new G4FTFPNeutronBuilder(QuasiElasticFTF);
  AddBuilder(ftf);
  ftf->SetMinEnergy(minFTFP_neutron);
  ftf->SetMaxEnergy(maxFTFP_neutron);
  neu->RegisterMe(ftf);
  auto bic = new G4BinaryNeutronBuilder;
  AddBuilder(bic);
  bic->SetMinEnergy(minBIC_neutron);
  bic->SetMaxEnergy(maxBIC_neutron);
  neu->RegisterMe(bic);
  neu->Build();
 
  const G4ParticleDefinition* neutron = G4Neutron::Neutron();
  G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(neutron);
  if(inel) { 
    inel->AddDataSet(new G4NeutronInelasticXS()); 
    if( useFactorXS ) inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
  }
  G4HadronicProcess* capture = G4PhysListUtil::FindCaptureProcess(neutron);
  if (capture) {
    capture->RegisterMe(new G4NeutronRadCapture());
  }
}
 
void G4HadronPhysicsQGSP_BIC::Proton()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  auto pro = new G4ProtonBuilder;
  AddBuilder(pro);
  auto qgs = new G4QGSPProtonBuilder(QuasiElasticQGS);
  AddBuilder(qgs);
  qgs->SetMinEnergy(minQGSP_proton);
  pro->RegisterMe(qgs);
  auto ftf = new G4FTFPProtonBuilder(QuasiElasticFTF);
  AddBuilder(ftf);
  ftf->SetMinEnergy(minFTFP_proton);
  ftf->SetMaxEnergy(maxFTFP_proton);
  pro->RegisterMe(ftf); 
  auto bic = new G4BinaryProtonBuilder;
  AddBuilder(bic);
  bic->SetMinEnergy(minBIC_proton);
  bic->SetMaxEnergy(maxBIC_proton);
  pro->RegisterMe(bic);
  pro->Build();
 
  const G4ParticleDefinition* proton = G4Proton::Proton();
  G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(proton);
  if(inel) { 
    if( useFactorXS ) inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
  }
}
 
void G4HadronPhysicsQGSP_BIC::Pion()
{
  G4HadronicParameters* param = G4HadronicParameters::Instance();
  G4bool useFactorXS = param->ApplyFactorXS();
 
  auto pik = new G4PiKBuilder();
  AddBuilder(pik);
  auto qgs = new G4QGSPPiKBuilder(QuasiElasticQGS);
  AddBuilder(qgs);
  qgs->SetMinEnergy(minQGSP_pik);
  pik->RegisterMe(qgs);
  auto ftf = new G4FTFPPiKBuilder(QuasiElasticFTF);
  AddBuilder(ftf);
  ftf->SetMaxEnergy(maxFTFP_pik);
  ftf->SetMinEnergy(minFTFP_pik);
  pik->RegisterMe(ftf);
  auto bert = new G4BertiniPiKBuilder();
  AddBuilder(bert);
  bert->SetMaxEnergy(maxBERT_pik);
  pik->RegisterMe(bert);
  pik->Build();
 
  // add cross section factor
  if( useFactorXS ) {
    const G4ParticleDefinition* pion = G4PionPlus::PionPlus();
    G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(pion);
    if(inel) {
      inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
    }
    pion = G4PionMinus::PionMinus();
    inel = G4PhysListUtil::FindInelasticProcess(pion);
    if(inel) { 
      inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
    }
    G4ParticleTable* table = G4ParticleTable::GetParticleTable();
    for( auto & pdg : G4HadParticles::GetKaons() ) {
      auto part = table->FindParticle( pdg );
      if ( part == nullptr ) { continue; }
      inel = G4PhysListUtil::FindInelasticProcess(part);
      if(inel) { 
        inel->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
      }
    }
  }
}
 
void G4HadronPhysicsQGSP_BIC::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);
    }
  }
}
 
G4HadronPhysicsQGSP_BIC::~G4HadronPhysicsQGSP_BIC() 
{}
 
void G4HadronPhysicsQGSP_BIC::ConstructParticle()
{
  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();
 
  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();
 
  G4ShortLivedConstructor pShortLivedConstructor;
  pShortLivedConstructor.ConstructParticle();
 
  G4IonConstructor pIonConstructor;
  pIonConstructor.ConstructParticle();
}
 
void G4HadronPhysicsQGSP_BIC::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();
  maxBIC_proton  = maxBIC_neutron  = maxBERT_pik = 
    param->GetMaxEnergyTransitionFTF_Cascade();
 
  if(G4Threading::IsMasterThread() && param->GetVerboseLevel() > 0) {
      DumpBanner();
  }
  CreateModels();
}