[819] | 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 | // |
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| 27 | // $Id: G4ExcitedStringDecay.hh,v 1.7 2007/05/03 22:06:17 gunter Exp $ |
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[962] | 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[819] | 29 | // |
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| 30 | #ifndef G4ExcitedStringDecay_h |
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| 31 | #define G4ExcitedStringDecay_h 1 |
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| 32 | |
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| 33 | #include "globals.hh" |
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| 34 | #include "G4VStringFragmentation.hh" |
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| 35 | #include "G4ExcitedStringVector.hh" |
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| 36 | #include "G4KineticTrackVector.hh" |
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| 37 | #include "G4LundStringFragmentation.hh" |
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| 38 | |
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| 39 | class G4ExcitedStringDecay: public G4VStringFragmentation |
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| 40 | { |
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| 41 | public: |
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| 42 | G4ExcitedStringDecay(); |
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| 43 | G4ExcitedStringDecay(G4VLongitudinalStringDecay * aStringDecay); |
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| 44 | ~G4ExcitedStringDecay(); |
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| 45 | |
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| 46 | private: |
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| 47 | G4ExcitedStringDecay(const G4ExcitedStringDecay &right); |
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| 48 | const G4ExcitedStringDecay & operator=(const G4ExcitedStringDecay &right); |
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| 49 | int operator==(const G4ExcitedStringDecay &right) const; |
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| 50 | int operator!=(const G4ExcitedStringDecay &right) const; |
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| 51 | |
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| 52 | public: |
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| 53 | |
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| 54 | virtual G4KineticTrackVector * FragmentStrings(const G4ExcitedStringVector * theStrings); |
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| 55 | |
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| 56 | private: |
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| 57 | G4KineticTrackVector * FragmentString(const G4ExcitedString &theString); |
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| 58 | G4bool EnergyAndMomentumCorrector(G4KineticTrackVector* Output, G4LorentzVector& TotalCollisionMom); |
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| 59 | |
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| 60 | G4VLongitudinalStringDecay * theStringDecay; |
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| 61 | |
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| 62 | }; |
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| 63 | |
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| 64 | inline |
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| 65 | G4KineticTrackVector *G4ExcitedStringDecay:: |
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| 66 | FragmentString(const G4ExcitedString &theString) |
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| 67 | { |
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| 68 | if ( theStringDecay == NULL ) |
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| 69 | theStringDecay=new G4LundStringFragmentation(); |
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| 70 | |
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| 71 | return theStringDecay->FragmentString(theString); |
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| 72 | } |
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| 73 | |
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| 74 | inline |
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| 75 | G4KineticTrackVector *G4ExcitedStringDecay:: |
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| 76 | FragmentStrings(const G4ExcitedStringVector * theStrings) |
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| 77 | { |
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| 78 | G4KineticTrackVector * theResult = new G4KineticTrackVector; |
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| 79 | |
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| 80 | G4LorentzVector KTsum; |
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| 81 | G4LorentzVector KTsecondaries; |
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| 82 | G4bool NeedEnergyCorrector=false; |
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| 83 | |
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| 84 | for ( unsigned int astring=0; astring < theStrings->size(); astring++) |
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| 85 | { |
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| 86 | KTsum+= theStrings->operator[](astring)->Get4Momentum(); |
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| 87 | if( !(KTsum.e()<1) && !(KTsum.e()>-1) ) |
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| 88 | { |
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| 89 | throw G4HadronicException(__FILE__, __LINE__, |
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| 90 | "G4ExcitedStringDecay::FragmentStrings received nan string..."); |
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| 91 | } |
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| 92 | G4KineticTrackVector * generatedKineticTracks = NULL; |
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| 93 | |
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| 94 | if ( theStrings->operator[](astring)->IsExcited() ) |
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| 95 | { |
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| 96 | generatedKineticTracks=FragmentString(*theStrings->operator[](astring)); |
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| 97 | } else { |
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| 98 | generatedKineticTracks = new G4KineticTrackVector; |
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| 99 | generatedKineticTracks->push_back(theStrings->operator[](astring)->GetKineticTrack()); |
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| 100 | } |
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| 101 | |
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| 102 | if (generatedKineticTracks == NULL) |
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| 103 | { |
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| 104 | G4cerr << "G4VPartonStringModel:No KineticTracks produced" << G4endl; |
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| 105 | continue; |
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| 106 | } |
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| 107 | |
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| 108 | G4LorentzVector KTsum1; |
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| 109 | for ( unsigned int aTrack=0; aTrack<generatedKineticTracks->size();aTrack++) |
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| 110 | { |
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| 111 | theResult->push_back(generatedKineticTracks->operator[](aTrack)); |
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| 112 | KTsum1+= (*generatedKineticTracks)[aTrack]->Get4Momentum(); |
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| 113 | } |
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| 114 | |
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| 115 | KTsecondaries+=KTsum1; |
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| 116 | |
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| 117 | if ( KTsum1.e() > 0 && std::abs((KTsum1.e()-theStrings->operator[](astring)->Get4Momentum().e()) / KTsum1.e()) > perMillion ) |
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| 118 | { |
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| 119 | //--debug-- G4cout << "String secondaries(" <<generatedKineticTracks->size()<< ") momentum: " |
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| 120 | //--debug-- << theStrings->operator[](astring)->Get4Momentum() << " " << KTsum1 << G4endl; |
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| 121 | NeedEnergyCorrector=true; |
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| 122 | } |
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| 123 | // clean up |
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| 124 | delete generatedKineticTracks; |
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| 125 | } |
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| 126 | //--DEBUG G4cout << "Strings/secs total 4 momentum " << KTsum << " " <<KTsecondaries << G4endl; |
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| 127 | |
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| 128 | G4bool success=true; |
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| 129 | if ( NeedEnergyCorrector ) success=EnergyAndMomentumCorrector(theResult, KTsum); |
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| 130 | |
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| 131 | |
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| 132 | #ifdef debug_ExcitedStringDecay |
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| 133 | G4LorentzVector KTsum1=0; |
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| 134 | for ( unsigned int aTrack=0; aTrack<theResult->size();aTrack++) |
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| 135 | { |
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| 136 | G4cout << " corrected tracks .. " << (*theResult)[aTrack]->GetDefinition()->GetParticleName() |
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| 137 | <<" " << (*theResult)[aTrack]->Get4Momentum() << G4endl; |
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| 138 | KTsum1+= (*theResult)[aTrack]->Get4Momentum(); |
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| 139 | } |
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| 140 | G4cout << "Needcorrector/success " << NeedEnergyCorrector << "/" << success << ", Corrected total 4 momentum " << KTsum1 << G4endl; |
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| 141 | if ( ! success ) G4cout << "failed to correct E/p" << G4endl; |
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| 142 | #endif |
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| 143 | |
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| 144 | return theResult; |
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| 145 | } |
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| 146 | |
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| 147 | #endif |
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| 148 | |
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| 149 | |
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