1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // File name: G4PiMinusAbsorptionAtRest.hh |
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27 | // |
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28 | // Author: Maria Grazia Pia (pia@genova.infn.it) |
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29 | // |
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30 | // Creation date: 9 May 1998 |
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31 | // |
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32 | // ------------------------------------------------------------------- |
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33 | |
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34 | #ifndef G4PIMINUSABSORPTIONATREST_HH |
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35 | #define G4PIMINUSABSORPTIONATREST_HH |
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36 | |
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37 | // Class Description: |
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38 | // |
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39 | // Alternative Process for absorption of pi- at rest. |
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40 | // To be used in your physics list in case you need this physics. |
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41 | |
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42 | |
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43 | #include "globals.hh" |
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44 | #include "G4VRestProcess.hh" |
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45 | #include "G4ParticleTypes.hh" |
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46 | #include "G4PiMinusStopMaterial.hh" |
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47 | #include "G4PiMinusStopAbsorption.hh" |
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48 | #include "G4StopDeexcitation.hh" |
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49 | #include "G4StopDeexcitationAlgorithm.hh" |
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50 | #include "G4HadronicProcessType.hh" |
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51 | |
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52 | class G4DynamicParticle; |
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53 | |
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54 | class G4PiMinusAbsorptionAtRest : public G4VRestProcess |
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55 | { |
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56 | |
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57 | private: |
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58 | |
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59 | // Hide assignment operator as private |
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60 | G4PiMinusAbsorptionAtRest& operator=(const G4PiMinusAbsorptionAtRest &right); |
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61 | |
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62 | // Copy constructor |
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63 | G4PiMinusAbsorptionAtRest(const G4PiMinusAbsorptionAtRest& ); |
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64 | |
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65 | public: |
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66 | |
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67 | // Constructor |
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68 | G4PiMinusAbsorptionAtRest(const G4String& processName ="PiMinusAbsorptionAtRest", |
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69 | G4ProcessType aType = fHadronic ); |
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70 | |
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71 | // Destructor |
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72 | ~G4PiMinusAbsorptionAtRest(); |
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73 | |
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74 | G4bool IsApplicable(const G4ParticleDefinition& particle) |
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75 | { return ( particle == *(G4PionMinus::PionMinus()) ); } |
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76 | |
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77 | void PreparePhysicsTable(const G4ParticleDefinition&); |
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78 | |
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79 | void BuildPhysicsTable(const G4ParticleDefinition&); |
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80 | |
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81 | G4VParticleChange* AtRestDoIt(const G4Track& aTrack, const G4Step& aStep); |
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82 | |
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83 | void SetDeexcitationAlgorithm(G4int index); |
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84 | |
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85 | protected: |
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86 | |
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87 | // zero mean lifetime |
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88 | G4double GetMeanLifeTime(const G4Track& aTrack, |
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89 | G4ForceCondition* ) |
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90 | { |
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91 | G4double result = 0; |
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92 | if(aTrack.GetMaterial()->GetNumberOfElements() == 1) |
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93 | if(aTrack.GetMaterial()->GetZ()<1.5) result = DBL_MAX; |
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94 | return result; |
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95 | } |
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96 | private: |
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97 | |
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98 | // G4PiMinusStopAbsorption* _stopAbsorption; |
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99 | // G4StopDeexcitation* _stopDeexcitation; |
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100 | G4int _indexDeexcitation; |
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101 | |
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102 | G4PiMinusStopMaterial* LoadAlgorithm(int Z); |
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103 | G4StopDeexcitationAlgorithm* LoadNucleusAlgorithm(); |
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104 | }; |
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105 | |
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106 | |
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107 | #endif |
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108 | |
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