00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 //--------------------------------------------------------------------- 00027 // Class Description: 00028 // 00029 // Intermediate class for hadronic absorption at rest using Bertini 00030 // Physics lists should reference the concrete subclasses for pi-, K-, Sigma- 00031 // 00032 // 20120905 M. Kelsey -- Drop explicit list of "allowed" particles; Bertini 00033 // can handle anything, or return no-interaction if not. 00034 // 20121017 M. Kelsey -- Use Bertini's IsApplicable to check particle allowed 00035 00036 #include "G4HadronicAbsorptionBertini.hh" 00037 #include "G4CascadeInterface.hh" 00038 #include "G4ParticleDefinition.hh" 00039 #include "G4ParticleTypes.hh" 00040 #include <iostream> 00041 00042 00043 // Constructor 00044 00045 G4HadronicAbsorptionBertini:: 00046 G4HadronicAbsorptionBertini(G4ParticleDefinition* pdef) 00047 : G4HadronStoppingProcess("hBertiniCaptureAtRest"), pdefApplicable(pdef) { 00048 theCascade = new G4CascadeInterface; 00049 theCascade->SetMinEnergy(0.); // Ensure it gets used at rest 00050 theCascade->usePreCompoundDeexcitation(); 00051 RegisterMe(theCascade); // Transfers ownership 00052 } 00053 00054 00055 // Applies to constructor-specified particle, or to all known cases 00056 00057 G4bool G4HadronicAbsorptionBertini::IsApplicable(const G4ParticleDefinition& particle) 00058 { 00059 // Exclusive match (if registered for specific projectile 00060 if (pdefApplicable) return (&particle == pdefApplicable); 00061 00062 // Any negative particles known to Bertini, excluding nuclei 00063 return (G4HadronStoppingProcess::IsApplicable(particle) && 00064 particle.GetAtomicMass() <= 1 && 00065 theCascade->IsApplicable(&particle)); 00066 } 00067 00068 00069 // Documentation of purpose 00070 00071 void 00072 G4HadronicAbsorptionBertini::ProcessDescription(std::ostream& os) const { 00073 os << "Stopping and absorption of charged hadrons (pi-, K-, Sigma-)\n" 00074 << "using Bertini-like intranuclear cascade.\n" 00075 << "Native PreCompound model is used for nuclear de-excitation" 00076 << std::endl; 00077 }