PhysListEmStandard.cc

Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file PhysListEmStandard.cc

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 

#include "PhysListEmStandard.hh"

#include "G4BuilderType.hh"
#include "G4ParticleDefinition.hh"
#include "G4PhysicsListHelper.hh"

#include "G4ComptonScattering.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"

#include "G4eMultipleScattering.hh"
#include "G4hMultipleScattering.hh"

#include "G4eIonisation.hh"
#include "G4eBremsstrahlung.hh"
#include "G4eplusAnnihilation.hh"

#include "G4MuIonisation.hh"
#include "G4MuBremsstrahlung.hh"
#include "G4MuPairProduction.hh"

#include "G4hIonisation.hh"
#include "G4hBremsstrahlung.hh"
#include "G4hPairProduction.hh"

#include "G4ionIonisation.hh"

#include "G4MscStepLimitType.hh"

#include "G4SystemOfUnits.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

PhysListEmStandard::PhysListEmStandard(const G4String& name)
   :  G4VPhysicsConstructor(name)
{
    SetPhysicsType(bElectromagnetic);

    G4EmParameters* param = G4EmParameters::Instance();
    param->SetDefaults();
  param->SetVerbose(0);
    param->SetMinEnergy(100*eV);
    param->SetMaxEnergy(100*TeV);
    param->SetNumberOfBinsPerDecade(10);
    param->SetMscStepLimitType(fUseSafety);
    param->SetStepFunction(0.2, 100*um);
    param->SetStepFunctionMuHad(0.2, 100*um);
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

PhysListEmStandard::~PhysListEmStandard()
{}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

void PhysListEmStandard::ConstructProcess()
{
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  
  // Add standard EM Processes
  //
  auto particleIterator=GetParticleIterator();
  particleIterator->reset();
  while( (*particleIterator)() ){
    G4ParticleDefinition* particle = particleIterator->value();
    G4String particleName = particle->GetParticleName();
     
    if (particleName == "gamma") {
      // gamma         
      ph->RegisterProcess(new G4PhotoElectricEffect, particle);
      ph->RegisterProcess(new G4ComptonScattering,   particle);
      ph->RegisterProcess(new G4GammaConversion,     particle);
      
    } else if (particleName == "e-") {
      //electron
      ph->RegisterProcess(new G4eMultipleScattering, particle);
      ph->RegisterProcess(new G4eIonisation,         particle);
      ph->RegisterProcess(new G4eBremsstrahlung(),   particle);
      
    } else if (particleName == "e+") {
      //positron
      ph->RegisterProcess(new G4eMultipleScattering, particle);
      ph->RegisterProcess(new G4eIonisation,         particle);
      ph->RegisterProcess(new G4eBremsstrahlung(),   particle);
      ph->RegisterProcess(new G4eplusAnnihilation,   particle);
      
    } else if( particleName == "mu-" || 
               particleName == "mu+"    ) {
      //muon  
      ph->RegisterProcess(new G4hMultipleScattering, particle);
      ph->RegisterProcess(new G4MuIonisation,        particle);
      ph->RegisterProcess(new G4MuBremsstrahlung,    particle);
      ph->RegisterProcess(new G4MuPairProduction,    particle);
             
    } else if( particleName == "proton" ||
               particleName == "pi-" ||
               particleName == "pi+"    ) {
      //proton  
      ph->RegisterProcess(new G4hMultipleScattering, particle);
      ph->RegisterProcess(new G4hIonisation,         particle);
      ph->RegisterProcess(new G4hBremsstrahlung,     particle);
      ph->RegisterProcess(new G4hPairProduction,     particle);       
     
    } else if( particleName == "alpha" || 
         particleName == "He3" || 
         particleName == "GenericIon" ) {
      //Ions 
      ph->RegisterProcess(new G4hMultipleScattering, particle);
      ph->RegisterProcess(new G4ionIonisation,       particle);

    } else if ((!particle->IsShortLived()) &&
         (particle->GetPDGCharge() != 0.0) && 
         (particle->GetParticleName() != "chargedgeantino")) {
      //all others charged particles except geantino
      ph->RegisterProcess(new G4hMultipleScattering, particle);
      ph->RegisterProcess(new G4hIonisation,         particle);
    }
  }
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......