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: G4StopTheoDeexcitation |
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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: 8 May 1998 |
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31 | // |
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32 | // Modifications: |
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33 | // MGP 4 July 1998 Modified parameters to force evaporation |
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34 | // |
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35 | // ------------------------------------------------------------------- |
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36 | |
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37 | #include "G4ios.hh" |
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38 | |
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39 | #include "G4StopTheoDeexcitation.hh" |
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40 | |
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41 | #include "globals.hh" |
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42 | #include "G4ThreeVector.hh" |
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43 | #include "G4LorentzVector.hh" |
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44 | #include "G4NucleiPropertiesTable.hh" |
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45 | #include "G4Fragment.hh" |
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46 | #include "G4ExcitationHandler.hh" |
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47 | #include "G4DynamicParticleVector.hh" |
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48 | |
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49 | // Constructor |
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50 | |
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51 | G4StopTheoDeexcitation::G4StopTheoDeexcitation() |
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52 | {} |
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53 | |
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54 | // Destructor |
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55 | |
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56 | G4StopTheoDeexcitation::~G4StopTheoDeexcitation() |
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57 | {} |
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58 | |
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59 | G4ReactionProductVector* G4StopTheoDeexcitation::BreakUp(G4double A, G4double Z, |
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60 | G4double excitation, |
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61 | const G4ThreeVector& p) |
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62 | { |
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63 | |
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64 | G4ExcitationHandler theHandler; |
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65 | |
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66 | // MF and FB parameters modified by MGP to force evaporation |
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67 | // Max A and Z values for use Fermi Breakup |
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68 | // theHandler.SetMaxAandZForFermiBreakUp(16, 10); |
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69 | // theHandler.SetMaxAandZForFermiBreakUp(2, 1); |
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70 | // Min excitation energy (per nucleon) for use MultiFrag |
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71 | // theHandler.SetMinEForMultiFrag(3*MeV); |
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72 | theHandler.SetMinEForMultiFrag(300*GeV); |
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73 | |
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74 | // Deexcite the nucleus |
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75 | |
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76 | G4double atomicMass = G4NucleiPropertiesTable::GetAtomicMass(static_cast<G4int>(Z),static_cast<G4int>(A)); |
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77 | G4double m = atomicMass + excitation; |
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78 | G4double pMag = p.mag(); |
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79 | G4LorentzVector initialMomentum(p.x(),p.y(),p.z(),std::sqrt(pMag*pMag + m*m)); |
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80 | G4Fragment theExcitedNucleus(static_cast<G4int>(A),static_cast<G4int>(Z),initialMomentum); |
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81 | |
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82 | // theExcitedNucleus.SetA(A); |
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83 | // theExcitedNucleus.SetZ(Z); |
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84 | // theExcitedNucleus.SetExcitationEnergy(excitation); |
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85 | // theExcitedNucleus.SetMomentum(initialMomentum); |
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86 | |
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87 | // G4cout << "Theo input " << A << " " << Z << " " |
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88 | // << pMag << " " << atomicMass << G4endl |
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89 | // << "Theo - " << excitation << " " << initialMomentum.mag() << G4endl |
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90 | // << "Fragment - " << theExcitedNucleus.GetExcitationEnergy() << " " |
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91 | // << theExcitedNucleus.GetMomentum().mag() << G4endl; |
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92 | |
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93 | return theHandler.BreakItUp(theExcitedNucleus); |
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94 | } |
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95 | |
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96 | |
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