1 | ------------------------------------------------------------------- |
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2 | |
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3 | ========================================================== |
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4 | Geant4 - an Object-Oriented Toolkit for Physics Simulation |
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5 | ========================================================== |
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6 | |
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7 | History file for hadronic/models/cascade |
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8 | ---------------------------------------- |
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9 | |
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10 | This file should be used to summarize modifications introduced in the |
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11 | code and to keep track of all tags. |
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12 | |
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13 | --------------------------------------------------------------- |
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14 | * Please list in reverse chronological order (last date on top) |
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15 | --------------------------------------------------------------- |
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16 | |
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17 | 25 Nov 2008 Dennis Wright (hadr-casc-V09-01-10) |
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18 | ----------------------------------------------- |
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19 | - fix multiplicity sampling in G4ElementaryParticleCollider::generateMultiplicity(). |
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20 | Now partial cross sections are normalized to the total cross section instead |
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21 | of just the sum of 2-body to 6-body final state cross sections. Also fix |
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22 | 2-body cross sections above 7 GeV where they were too small. |
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23 | Fix the same cross sections which appear in G4CascadSpecialFunctions.cc |
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24 | |
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25 | 21 Nov 2008 Dennis Wright (hadr-casc-V09-01-09) |
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26 | ----------------------------------------------- |
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27 | - add some comments to cross section tables in G4CascadSpecialFunctions.cc |
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28 | and G4ElementaryParticleCollider.cc |
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29 | |
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30 | 24 Oct 2008 Dennis Wright (hadr-casc-V09-01-08) |
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31 | ----------------------------------------------- |
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32 | - replace GetAtomicMass() with GetNuclearMass() in cascade/G4InuclEvaporation |
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33 | and evaporation/G4BertiniEvaporation |
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34 | - V. Ivantchenko added name to G4CascadeInterface ("Bertini Cascade") |
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35 | |
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36 | 17 Oct 2008 Dennis Wright (hadr-casc-V09-01-07) |
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37 | ----------------------------------------------- |
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38 | - added Coulomb barrier plus barrier penetration in G4IntraNucleiCascader.cc |
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39 | |
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40 | 27 Sep 2008 Dennis Wright (hadr-casc-V09-01-06) |
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41 | ----------------------------------------------- |
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42 | - Fixed 4.3 compiler warnings for G4InuclElementaryParticle.hh by providing |
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43 | initializers for particle type and mass |
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44 | - Remove unused variables totscm, totlab in G4BigBanger.cc, |
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45 | G4ElementaryParticleCollider.cc, and unused mom1 from G4InuclSpecialFunctions.cc |
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46 | |
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47 | 22 Sep 2008 Gabriele Cosmo (hadr-casc-V09-01-05) |
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48 | ------------------------------------------------ |
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49 | - Introduced simple wrapper class G4CascadeMomentum meant to replace usage |
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50 | of std::vector<double> in the cascade code, to reduce memory allocations. |
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51 | Courtesy of P.Elmer (princeton Univ.). |
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52 | - Modified cascade code to make use of G4CascadeMomentum. |
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53 | |
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54 | 3 Sep 2008 Dennis Wright (hadr-casc-V09-01-04) |
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55 | ----------------------------------------------- |
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56 | - G4ElementaryParticleCollider.cc: in method generateMultiplicity, remove |
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57 | large_cut which increases multiplicity from 3 to 4 abruptly at 4 GeV |
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58 | and above. This caused a sharp drop-off in the single pion spectra from |
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59 | pH reactions. The effect in heavier nuclei is small. |
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60 | |
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61 | 29 Jun 2008 Dennis Wright (hadr-casc-V09-01-03) |
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62 | ----------------------------------------------- |
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63 | - add changes made by M. Paterno, J. Kowalkowski, and M. Fischler (FNAL) |
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64 | to speed up code. All G4Cascade***Channel classes and related code changed. |
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65 | |
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66 | 5 May 2008 Dennis Wright (hadr-casc-V09-01-02) |
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67 | ----------------------------------------------- |
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68 | - retag hadr-casc-V09-csbug as hadr-casc-V09-01-02 |
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69 | |
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70 | 30 Apr 2008 Dennis Wright (hadr-casc-V09-csbug) |
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71 | ----------------------------------------------- |
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72 | - fix cross section bug in G4CascadSpecialFunctions that returned |
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73 | low or zero total cross sections for pi-p, pi+n, np, and pi0 |
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74 | interactions |
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75 | |
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76 | 29 Apr 2008 Dennis Wright (hadr-casc-V09-01-01) |
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77 | ----------------------------------------------- |
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78 | - bring tag hadr-casc-V09-01-coula to HEAD, make official tag |
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79 | |
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80 | 22 Apr 2008 Dennis Wright (hadr-casc-V09-01-param) |
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81 | -------------------------------------------------- |
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82 | - changed pp, nn total cross section parameterization in |
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83 | G4CascadSpecialFunctions to more closely reflect the PDG values (old one |
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84 | was off by as much as a factor of 3. |
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85 | |
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86 | 3 Apr 2008 Dennis Wright (hadr-casc-V09-01-coula) |
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87 | ------------------------------------------------- |
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88 | - removed Coulomb barrier from G4IntraNucleiCascader.cc (causes unphysical spike) |
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89 | |
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90 | 3 Apr 2008 Dennis Wright (hadr-casc-V09-01-coul) |
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91 | ------------------------------------------------ |
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92 | - Added Coulomb barrier in G4EquilibriumEvaporator.cc, G4IntraNucleiCascader.cc |
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93 | |
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94 | 17 Nov 2007 Dennis Wright (hadr-casc-V09-00-02) |
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95 | ----------------------------------------------- |
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96 | - Fix angular distribution for nucleon-nucleon elastic scattering |
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97 | above 2.8 GeV, by modifying G4ElementaryParticleCollider::getElasticCase |
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98 | |
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99 | 25 May 2007 Dennis Wright for Aatos Heikkinen (hadr-casc-V08-03-00) |
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100 | ------------------------------------------------------------------- |
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101 | - implemented interfaces for pre-equilibrium and equilbrium evaporation |
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102 | models |
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103 | |
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104 | 04 May 2007 Aatos Heikkinen (hadr-casc-V08-02-00) |
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105 | ------------------------------------------------- |
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106 | |
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107 | - Added protection in G4ElementaryParticleCollider against negative |
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108 | value to sqrt(). |
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109 | |
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110 | 08 May 2006 Dennis Wright (hadr-casc-V08-00-00) |
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111 | ----------------------------------------------- |
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112 | |
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113 | - cascade: remove G4BERTINI_KAON conditional assembly flags. Files |
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114 | affected: |
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115 | G4ElementaryParticleCollider.hh, cc |
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116 | G4InuclElementaryParticle.hh |
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117 | G4NucleiModel.hh, cc |
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118 | G4CascadeInterface.cc |
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119 | G4IntraNucleiCascader.cc |
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120 | |
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121 | - cascade (Pekka Kaitaniemi): G4ElasticCascadeInterface: derive |
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122 | from G4VIntraNuclearTransportModel instead of G4HadronElastic. |
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123 | Check for case when no elastic scattering occurs. If so, |
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124 | return original bullet and target. |
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125 | |
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126 | 24 Nov 2005 Dennis Wright (hadr-casc-V07-01-00) |
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127 | ---------------------------------------------- |
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128 | |
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129 | - cascade (bertini-V07-01-00 by Aatos Heikkinen) |
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130 | elastic scattering interface added: |
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131 | G4ElasticCascadeInterface.hh, .cc added |
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132 | G4CascadeInterface.hh modified |
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133 | |
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