G4StoppingPhysics.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:  G4StoppingPhysics
//
// Author:     Alberto Ribon
//
// Date:       27 July 2012
//
// Modified:  
// 20120921  M. Kelsey -- Move MuonMinusCapture.hh here; replace G4MMCAtRest
//      with new G4MuonMinusCapture.
// 16-Oct-2012 A. Ribon: renamed G4BertiniAndFritiofStoppingPhysics as 
//                       G4StoppingPhysics.
// 17-Oct-2012 A. Ribon: added nuclear capture at rest of anti-nuclei with
//                       Fritof/Precompound.
// 22-May-2019 A. Ribon: added annihilation at rest with Fritiof/Precompound
//                       for neutral anti-hadrons: anti-neutron, anti-lambda
//                       anti-sigma0 nd anti-xi0.
//
//----------------------------------------------------------------------------
 
#include "G4StoppingPhysics.hh"
#include "G4SystemOfUnits.hh"
#include "G4HadronicAbsorptionBertini.hh"
#include "G4HadronicAbsorptionFritiof.hh"
#include "G4MuonMinusCapture.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4LeptonConstructor.hh"
#include "G4MesonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4MuonMinus.hh"
#include "G4PionMinus.hh"
#include "G4BuilderType.hh"
 
// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4StoppingPhysics);
 
G4StoppingPhysics::G4StoppingPhysics( G4int ver ) :  
  G4StoppingPhysics("stopping", ver)
{}
 
G4StoppingPhysics::G4StoppingPhysics(const G4String& name, G4int ver, 
                                     G4bool useMuCapture) :
  G4VPhysicsConstructor( name ),
  verbose( ver ), 
  useMuonMinusCapture( useMuCapture ) 
{
  SetPhysicsType(bStopping);
  if ( verbose > 1 ) G4cout << "### G4StoppingPhysics" << G4endl;
}
 
G4StoppingPhysics::~G4StoppingPhysics() {}
 
void G4StoppingPhysics::ConstructParticle() {
  // G4cout << "G4StoppingPhysics::ConstructParticle" << G4endl;
  G4LeptonConstructor pLeptonConstructor;
  pLeptonConstructor.ConstructParticle();
 
  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();
 
  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();
}
 
void G4StoppingPhysics::ConstructProcess() {
  if ( verbose > 1 ) G4cout << "### G4StoppingPhysics::ConstructProcess " 
                << G4endl;
 
  G4MuonMinusCapture* muProcess = nullptr;
  G4HadronicAbsorptionBertini* hBertiniProcess = nullptr;
  G4HadronicAbsorptionFritiof* hFritiofProcess = nullptr;
 
  if ( useMuonMinusCapture ) {
    muProcess = new G4MuonMinusCapture();
  }   
 
  hBertiniProcess = new G4HadronicAbsorptionBertini();
  hFritiofProcess = new G4HadronicAbsorptionFritiof();
 
  G4double mThreshold = 130.0*MeV;
 
  // Add Stopping Process
  G4ParticleDefinition* particle = 0;
  G4ProcessManager* pmanager = 0;
 
  auto myParticleIterator=GetParticleIterator();
  myParticleIterator->reset();
 
  while ( (*myParticleIterator)() ) {
 
    particle = myParticleIterator->value();
    pmanager = particle->GetProcessManager();
 
    if (useMuonMinusCapture && particle == G4MuonMinus::MuonMinus()) {
      pmanager->AddRestProcess( muProcess );
      if ( verbose > 1 ) {
    G4cout << "### G4StoppingPhysics added G4MuonMinusCapture for " 
           << particle->GetParticleName() << G4endl;
      }
    }
 
    if ( particle->GetPDGCharge() <= 0.0      && 
         particle->GetPDGMass() > mThreshold  &&
         ! particle->IsShortLived() ) {
 
      // Use Fritiof/Precompound for: anti-proton, anti-neutron, anti-lambda, 
      //                              anti-sigma0, anti-sigma+, anti-xi0 and anti-nuclei.
      if ( particle == G4AntiProton::Definition()     ||
           particle == G4AntiNeutron::Definition()    ||
           particle == G4AntiLambda::Definition()     ||
           particle == G4AntiSigmaZero::Definition()  ||
           particle == G4AntiSigmaPlus::Definition()  ||
           particle == G4AntiXiZero::Definition()     ||
           particle->GetBaryonNumber() < -1 ) {  // Anti-nuclei
        if ( hFritiofProcess->IsApplicable( *particle ) ) {
          pmanager->AddRestProcess( hFritiofProcess );
          if ( verbose > 1 ) {
        G4cout << "### G4HadronicAbsorptionFritiof added for "
                   << particle->GetParticleName() << G4endl;
          }
        }
 
      // Use Bertini/Precompound for pi-, K-, Sigma-, Xi-, and Omega-
      } else if ( particle == G4PionMinus::Definition()   ||
                  particle == G4KaonMinus::Definition()   ||
                  particle == G4SigmaMinus::Definition()  ||
                  particle == G4XiMinus::Definition()     ||
                  particle == G4OmegaMinus::Definition() ) {
        if ( hBertiniProcess->IsApplicable( *particle ) ) {
          pmanager->AddRestProcess( hBertiniProcess );
          if ( verbose > 1 ) {
        G4cout << "### G4HadronicAbsorptionBertini added for "
                   << particle->GetParticleName() << G4endl;
          }
        }
 
      } else {
        if ( verbose > 1 ) {
          G4cout << "WARNING in G4StoppingPhysics::ConstructProcess: \
                     not able to deal with nuclear stopping of " 
                 << particle->GetParticleName() << G4endl;
        }
      }
    }
 
  } // end of while loop
}