G4HadronHElasticPhysics.cc

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// $Id: G4HadronHElasticPhysics.cc 73281 2013-08-23 08:21:37Z gcosmo $
//
//---------------------------------------------------------------------------
//
// ClassName:   G4HadronHElasticPhysics
//
// Author: 23 November 2006 V. Ivanchenko
//
// Modified:
// 21.03.07 (V.Ivanchenko) Use G4BGGNucleonElasticXS and G4BGGPionElasticXS; 
//                         Reduce thresholds for HE and Q-models to zero
// 03.06.2010 V.Ivanchenko cleanup constructors and ConstructProcess method
//
//----------------------------------------------------------------------------
//
// CHIPS for sampling scattering for p and n
// Glauber model for samplimg of high energy pi+- (E > 1GeV)
// LHEP sampling model for the other particle
// BBG cross sections for p, n and pi+- 
// LHEP cross sections for other particles

#include "G4HadronHElasticPhysics.hh"

#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"

#include "G4MesonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4IonConstructor.hh"
#include "G4Neutron.hh"

#include "G4HadronElasticProcess.hh"
#include "G4HadronElastic.hh"
#include "G4ChipsElasticModel.hh"
#include "G4ElasticHadrNucleusHE.hh"
#include "G4AntiNuclElastic.hh"

#include "G4BGGNucleonElasticXS.hh"
#include "G4BGGPionElasticXS.hh"
#include "G4NeutronElasticXS.hh"
#include "G4ChipsProtonElasticXS.hh"
#include "G4ChipsNeutronElasticXS.hh"

#include "G4ComponentAntiNuclNuclearXS.hh"  
#include "G4CrossSectionElastic.hh"

// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4HadronHElasticPhysics);

G4ThreadLocal G4bool G4HadronHElasticPhysics::wasActivated = false;


G4HadronHElasticPhysics::G4HadronHElasticPhysics(G4int ver)
  : G4VPhysicsConstructor("hElasticWEL_CHIPS"), verbose(ver)
{
  if(verbose > 1) { 
    G4cout << "### G4HadronHElasticPhysics: " << GetPhysicsName() 
           << G4endl; 
  }
}

G4HadronHElasticPhysics::~G4HadronHElasticPhysics()
{}

void G4HadronHElasticPhysics::ConstructParticle()
{
  // G4cout << "G4HadronElasticPhysics::ConstructParticle" << G4endl;
  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();

  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();

  //  Construct light ions
  G4IonConstructor pConstructor;
  pConstructor.ConstructParticle();  
}

void G4HadronHElasticPhysics::ConstructProcess()
{
  if(wasActivated) { return; }
  wasActivated = true;

  const G4double elimit = 1.0*GeV;
  const G4double elimitAntiNuc = 100*MeV;
  const G4double delta = 0.1*MeV;
  if(verbose > 1) {
    G4cout << "### HadronElasticPhysics::ConstructProcess: Elimit for HE " 
           << elimit/GeV << " GeV" << G4endl;
    G4cout << "                                         for anti-neuclei " 
           << elimitAntiNuc/GeV << " GeV"          << G4endl;
  }

  G4AntiNuclElastic* anuc = new G4AntiNuclElastic();
  anuc->SetMinEnergy(elimitAntiNuc);
  G4CrossSectionElastic* anucxs = 
    new G4CrossSectionElastic(anuc->GetComponentCrossSection());

  G4HadronElastic* lhep0 = new G4HadronElastic();
  G4HadronElastic* lhep1 = new G4HadronElastic();
  G4HadronElastic* lhep2 = new G4HadronElastic();
  lhep1->SetMaxEnergy(elimit+delta);
  lhep2->SetMaxEnergy(elimitAntiNuc+delta);

  G4ChipsElasticModel* chips = new G4ChipsElasticModel();
  chips->SetMaxEnergy(elimit+delta);

  G4ElasticHadrNucleusHE* he = new G4ElasticHadrNucleusHE(); 
  he->SetMinEnergy(elimit);

  aParticleIterator->reset();
  while( (*aParticleIterator)() )
  {
    G4ParticleDefinition* particle = aParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String pname = particle->GetParticleName();
    if(pname == "anti_lambda"  ||
       pname == "anti_neutron" ||
       pname == "anti_omega-"  || 
       pname == "anti_sigma-"  || 
       pname == "anti_sigma+"  || 
       pname == "anti_xi-"  || 
       pname == "anti_xi0"  || 
       pname == "lambda"    || 
       pname == "omega-"    || 
       pname == "sigma-"    || 
       pname == "sigma+"    || 
       pname == "xi-"       || 
       pname == "alpha"     ||
       pname == "deuteron"  ||
       pname == "triton"   
       ) {
      
      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->RegisterMe(lhep0);
      pmanager->AddDiscreteProcess(hel);
      if(verbose > 1) {
        G4cout << "### HadronElasticPhysics: " << hel->GetProcessName()
               << " added for " << particle->GetParticleName() << G4endl;
      }

    } else if(pname == "proton") {   

      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->AddDataSet(new G4BGGNucleonElasticXS(particle));
      hel->RegisterMe(chips);
      hel->RegisterMe(he);
      pmanager->AddDiscreteProcess(hel);
      if(verbose > 1) {
        G4cout << "### HadronElasticPhysics: " << hel->GetProcessName()
               << " added for " << particle->GetParticleName() << G4endl;
      }

    } else if(pname == "neutron") {   

      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->AddDataSet(new G4NeutronElasticXS());
      hel->RegisterMe(chips);
      hel->RegisterMe(he);
      pmanager->AddDiscreteProcess(hel);
      if(verbose > 1) {
        G4cout << "### HadronElasticPhysics: " 
               << hel->GetProcessName()
               << " added for " << particle->GetParticleName() << G4endl;
      }

    } else if (pname == "pi+" || pname == "pi-") { 

      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->AddDataSet(new G4BGGPionElasticXS(particle));
      hel->RegisterMe(lhep1);
      hel->RegisterMe(he);
      pmanager->AddDiscreteProcess(hel);
      if(verbose > 1) {
        G4cout << "### HadronElasticPhysics: " << hel->GetProcessName()
               << " added for " << particle->GetParticleName() << G4endl;
      }

    } else if(pname == "kaon-"     || 
              pname == "kaon+"     || 
              pname == "kaon0S"    || 
              pname == "kaon0L" 
              ) {
      
      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->RegisterMe(lhep0);
      //hel->AddDataSet(new G4CHIPSElasticXS());
      pmanager->AddDiscreteProcess(hel);
      if(verbose > 1) {
        G4cout << "### HadronElasticPhysics: " << hel->GetProcessName()
               << " added for " << particle->GetParticleName() << G4endl;
      }

    } else if(
       pname == "anti_proton"    || 
       pname == "anti_alpha"     ||
       pname == "anti_deuteron"  ||
       pname == "anti_triton"    ||
       pname == "anti_He3"       ) {

      G4HadronElasticProcess* hel = new G4HadronElasticProcess();
      hel->AddDataSet(anucxs);
      hel->RegisterMe(lhep2);
      hel->RegisterMe(anuc);
      pmanager->AddDiscreteProcess(hel);
    }
  }
}