G4HadronicAbsorptionBertini.cc

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//---------------------------------------------------------------------
// Class Description:
//
// Intermediate class for hadronic absorption at rest using Bertini
// Physics lists should reference the concrete subclasses for pi-, K-, Sigma-
//
// 20120905  M. Kelsey -- Drop explicit list of "allowed" particles; Bertini
//              can handle anything, or return no-interaction if not.
// 20121017  M. Kelsey -- Use Bertini's IsApplicable to check particle allowed

#include "G4HadronicAbsorptionBertini.hh"
#include "G4CascadeInterface.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTypes.hh"
#include <iostream>


// Constructor

G4HadronicAbsorptionBertini::
G4HadronicAbsorptionBertini(G4ParticleDefinition* pdef)
  : G4HadronStoppingProcess("hBertiniCaptureAtRest"), pdefApplicable(pdef) {
  theCascade = new G4CascadeInterface;
  theCascade->SetMinEnergy(0.);                 // Ensure it gets used at rest
  theCascade->usePreCompoundDeexcitation();
  RegisterMe(theCascade);                       // Transfers ownership
}


// Applies to constructor-specified particle, or to all known cases

G4bool G4HadronicAbsorptionBertini::IsApplicable(const G4ParticleDefinition& particle)
{
  // Exclusive match (if registered for specific projectile
  if (pdefApplicable) return (&particle == pdefApplicable);

  // Any negative particles known to Bertini, excluding nuclei
  return (G4HadronStoppingProcess::IsApplicable(particle) &&
          particle.GetAtomicMass() <= 1 &&
          theCascade->IsApplicable(&particle));
}


// Documentation of purpose

void 
G4HadronicAbsorptionBertini::ProcessDescription(std::ostream& os) const {
  os << "Stopping and absorption of charged hadrons (pi-, K-, Sigma-)\n"
     << "using Bertini-like intranuclear cascade.\n"
     << "Native PreCompound model is used for nuclear de-excitation"
     << std::endl;
}