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 // $Id$ 00027 // 00028 // G4MuonMinusCaptureAtRest physics process 00029 // Larry Felawka (TRIUMF) and Art Olin (TRIUMF) April 1998 00030 //--------------------------------------------------------------------- 00031 // 00032 // Class Description: 00033 // 00034 // Process for nuclear capture of mu- at rest takes into account Fermi 00035 // model of muon capture in compounds, simplified EM cascade model, muon 00036 // decay from K-shell, and muon nucleus reaction. 00037 00038 // 00039 // Modifications: 00040 // 18/08/2000 V.Ivanchenko Update description, new method to simulate capture 00041 // 12/12/2003 H.P.Wellisch Completly rewrite mu-nuclear part 00042 // 17/05/2006 V.Ivanchenko Cleanup 00043 // 14/11/2006 V.Ivanchenko Remove implementation of GetPhysicsInteractionLength 00044 // 00045 //----------------------------------------------------------------------------- 00046 00047 #ifndef G4MuonMinusCaptureAtRest_h 00048 #define G4MuonMinusCaptureAtRest_h 1 00049 00050 #include "globals.hh" 00051 #include "G4VRestProcess.hh" 00052 #include "G4VParticleChange.hh" 00053 #include "G4ParticleDefinition.hh" 00054 #include "G4StopElementSelector.hh" 00055 #include "G4MuMinusCaptureCascade.hh" 00056 #include "G4ReactionProductVector.hh" 00057 #include "G4MuonMinus.hh" 00058 #include "G4HadronicProcessType.hh" 00059 00060 class G4Fancy3DNucleus; 00061 class G4ExcitationHandler; 00062 class G4GHEKinematicsVector; 00063 00064 class G4MuonMinusCaptureAtRest : public G4VRestProcess 00065 00066 { 00067 public: 00068 00069 G4MuonMinusCaptureAtRest(const G4String& processName ="muMinusCaptureAtRest", 00070 G4ProcessType aType = fHadronic ); 00071 00072 virtual ~G4MuonMinusCaptureAtRest(); 00073 00074 virtual G4bool IsApplicable(const G4ParticleDefinition&); 00075 00076 virtual void PreparePhysicsTable(const G4ParticleDefinition&); 00077 00078 virtual void BuildPhysicsTable(const G4ParticleDefinition&); 00079 00080 virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&); 00081 00082 G4double GetMeanLifeTime(const G4Track&, G4ForceCondition*) 00083 {return 0;}; 00084 00085 private: 00086 00087 G4ReactionProductVector* DoMuCapture(); 00088 00089 // hide assignment operator as private 00090 G4MuonMinusCaptureAtRest& operator=(const G4MuonMinusCaptureAtRest &right); 00091 G4MuonMinusCaptureAtRest(const G4MuonMinusCaptureAtRest& ); 00092 00093 G4int nCascade; 00094 G4double targetZ; 00095 G4double targetA; 00096 G4double targetMass; 00097 00098 G4StopElementSelector* pSelector; 00099 G4MuMinusCaptureCascade* pEMCascade; 00100 G4GHEKinematicsVector* Cascade; 00101 G4Fancy3DNucleus* theN; 00102 G4ExcitationHandler* theHandler; 00103 00104 G4bool isInitialised; 00105 00106 }; 00107 00108 #endif 00109 00110 00111 00112 00113 00114