[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 | // |
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| 28 | |
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| 29 | #ifndef G4ExcitedString_h |
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| 30 | #define G4ExcitedString_h 1 |
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| 31 | |
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| 32 | // ------------------------------------------------------------ |
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| 33 | // GEANT 4 class header file |
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| 34 | // |
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| 35 | // ---------------- G4ExcitedString ---------------- |
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| 36 | // by Gunter Folger, June 1998. |
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| 37 | // class for an excited string used by Parton String Models |
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| 38 | // ------------------------------------------------------------ |
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| 39 | |
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| 40 | #include "G4ios.hh" |
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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 "G4LorentzRotation.hh" |
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| 45 | #include "G4Parton.hh" |
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| 46 | #include "G4PartonVector.hh" |
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| 47 | #include "G4KineticTrack.hh" |
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| 48 | #include "G4HadronicException.hh" |
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| 49 | #include <algorithm> |
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| 50 | |
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| 51 | class G4ExcitedString |
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| 52 | { |
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| 53 | |
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| 54 | public: |
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| 55 | |
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| 56 | enum { |
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| 57 | PROJECTILE = 1, |
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| 58 | TARGET = -1 |
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| 59 | }; |
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| 60 | |
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| 61 | G4ExcitedString(G4Parton* Color, G4Parton* Gluon, G4Parton* AntiColor, G4int Direction=PROJECTILE); |
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| 62 | G4ExcitedString(G4Parton* Color, G4Parton* AntiColor, G4int Direction=PROJECTILE); |
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| 63 | G4ExcitedString(G4KineticTrack * atrack); |
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| 64 | |
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| 65 | G4ExcitedString(const G4ExcitedString &right); |
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| 66 | |
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| 67 | ~G4ExcitedString(); |
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| 68 | |
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| 69 | int operator==(const G4ExcitedString &right) const; |
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| 70 | |
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| 71 | int operator!=(const G4ExcitedString &right) const; |
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| 72 | |
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[962] | 73 | G4double GetTimeOfCreation() const; // Uzhi 15.05.08 |
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| 74 | |
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| 75 | void SetTimeOfCreation(G4double aTime); // Uzhi 15.05.08 |
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| 76 | |
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[819] | 77 | const G4ThreeVector & GetPosition() const; |
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| 78 | |
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| 79 | void SetPosition(const G4ThreeVector &aPosition); |
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| 80 | |
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| 81 | const G4PartonVector * GetPartonList() const; |
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| 82 | |
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| 83 | G4LorentzVector Get4Momentum() const; |
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| 84 | void LorentzRotate(const G4LorentzRotation & rotation); |
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| 85 | |
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| 86 | void InsertParton(G4Parton * aParton, const G4Parton * addafter = NULL); |
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| 87 | |
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| 88 | G4LorentzRotation TransformToCenterOfMass(); |
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| 89 | G4LorentzRotation TransformToAlignedCms(); |
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| 90 | |
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| 91 | |
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| 92 | void Boost(G4ThreeVector& Velocity); |
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| 93 | |
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| 94 | G4Parton* GetColorParton(void) const; |
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| 95 | G4Parton* GetGluon(void) const; |
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| 96 | G4Parton* GetAntiColorParton(void) const; |
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| 97 | G4Parton* GetGluon(G4int GluonPos) const; |
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| 98 | |
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| 99 | G4KineticTrack * GetKineticTrack() const; |
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| 100 | |
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| 101 | G4Parton* GetLeftParton(void) const; |
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| 102 | G4Parton* GetRightParton(void) const; |
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| 103 | |
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| 104 | G4bool IsItKinkyString(void) const; |
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| 105 | G4int GetDirection(void) const; |
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| 106 | |
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| 107 | G4bool IsExcited() const; |
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| 108 | |
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| 109 | |
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| 110 | private: |
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| 111 | |
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| 112 | G4int theDirection; // must be 1 or -1 (PROJECTILE or TARGET) |
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[962] | 113 | G4double theTimeOfCreation; // Uzhi 15.05.08 |
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[819] | 114 | G4ThreeVector thePosition; |
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| 115 | G4PartonVector thePartons; // would like initial capacity for 3 Partons. |
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| 116 | G4KineticTrack* theTrack; |
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| 117 | |
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| 118 | }; |
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| 119 | |
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| 120 | inline |
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| 121 | int G4ExcitedString::operator==(const G4ExcitedString &right) const |
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| 122 | { |
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| 123 | return this == &right; |
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| 124 | } |
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| 125 | |
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| 126 | inline |
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| 127 | int G4ExcitedString::operator!=(const G4ExcitedString &right) const |
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| 128 | { |
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| 129 | return this != &right; |
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| 130 | } |
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| 131 | |
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| 132 | inline |
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[962] | 133 | G4double G4ExcitedString::GetTimeOfCreation() const // Uzhi 15.05.08 |
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| 134 | { |
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| 135 | return theTimeOfCreation; |
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| 136 | } |
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| 137 | |
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| 138 | inline |
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| 139 | void G4ExcitedString::SetTimeOfCreation(G4double aTime) // Uzhi 15.05.08 |
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| 140 | { |
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| 141 | theTimeOfCreation=aTime; // Uzhi 15.05.08 |
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| 142 | } |
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| 143 | |
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| 144 | inline |
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[819] | 145 | const G4ThreeVector & G4ExcitedString::GetPosition() const |
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| 146 | { |
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| 147 | return thePosition; |
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| 148 | } |
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| 149 | |
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| 150 | inline |
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| 151 | void G4ExcitedString::SetPosition(const G4ThreeVector &aPosition) |
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| 152 | { |
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| 153 | thePosition= aPosition; |
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| 154 | } |
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| 155 | |
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| 156 | inline |
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| 157 | G4LorentzVector G4ExcitedString::Get4Momentum() const |
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| 158 | { |
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| 159 | G4LorentzVector momentum; |
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| 160 | for ( unsigned int index=0; index < thePartons.size() ; index++ ) |
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| 161 | { |
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| 162 | // std::cout << "HPW "<<thePartons[index]->Get4Momentum()<<std::endl; |
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| 163 | momentum += thePartons[index]->Get4Momentum(); |
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| 164 | } |
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| 165 | return momentum; |
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| 166 | } |
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| 167 | |
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| 168 | inline |
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| 169 | void G4ExcitedString::LorentzRotate(const G4LorentzRotation & rotation) |
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| 170 | { |
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| 171 | for ( unsigned int index=0; index < thePartons.size() ; index++ ) |
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| 172 | { |
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| 173 | thePartons[index]->Set4Momentum(rotation*thePartons[index]->Get4Momentum()); |
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| 174 | } |
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| 175 | } |
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| 176 | |
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| 177 | inline |
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| 178 | void G4ExcitedString::InsertParton(G4Parton *aParton, const G4Parton * addafter) |
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| 179 | { |
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| 180 | |
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| 181 | G4PartonVector::iterator insert_index; |
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| 182 | |
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| 183 | if ( addafter != NULL ) |
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| 184 | { |
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| 185 | insert_index=std::find(thePartons.begin(), thePartons.end(), addafter); |
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| 186 | if (insert_index == thePartons.end()) // No object addafter in thePartons |
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| 187 | { |
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| 188 | G4String text = "G4ExcitedString::InsertParton called with invalid second argument"; |
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| 189 | throw G4HadronicException(__FILE__, __LINE__, text); |
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| 190 | } |
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| 191 | } |
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| 192 | |
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| 193 | thePartons.insert(insert_index+1, aParton); |
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| 194 | } |
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| 195 | |
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| 196 | inline |
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| 197 | G4LorentzRotation G4ExcitedString::TransformToCenterOfMass() |
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| 198 | { |
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| 199 | G4LorentzVector momentum=Get4Momentum(); |
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| 200 | G4LorentzRotation toCms(-1*momentum.boostVector()); |
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| 201 | |
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| 202 | for ( unsigned int index=0; index < thePartons.size() ; index++ ) |
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| 203 | { |
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| 204 | momentum=toCms * thePartons[index]->Get4Momentum(); |
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| 205 | thePartons[index]->Set4Momentum(momentum); |
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| 206 | } |
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| 207 | return toCms; |
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| 208 | } |
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| 209 | |
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| 210 | inline |
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| 211 | G4LorentzRotation G4ExcitedString::TransformToAlignedCms() |
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| 212 | { |
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| 213 | G4LorentzVector momentum=Get4Momentum(); |
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| 214 | G4LorentzRotation toAlignedCms(-1*momentum.boostVector()); |
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| 215 | |
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| 216 | momentum= toAlignedCms* thePartons[0]->Get4Momentum(); |
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| 217 | toAlignedCms.rotateZ(-1*momentum.phi()); |
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| 218 | toAlignedCms.rotateY(-1*momentum.theta()); |
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| 219 | |
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| 220 | for ( unsigned int index=0; index < thePartons.size() ; index++ ) |
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| 221 | { |
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| 222 | momentum=toAlignedCms * thePartons[index]->Get4Momentum(); |
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| 223 | thePartons[index]->Set4Momentum(momentum); |
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| 224 | } |
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| 225 | return toAlignedCms; |
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| 226 | } |
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| 227 | |
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| 228 | |
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| 229 | inline |
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| 230 | const G4PartonVector * G4ExcitedString::GetPartonList() const |
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| 231 | { |
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| 232 | return &thePartons; |
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| 233 | } |
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| 234 | |
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| 235 | inline |
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| 236 | G4KineticTrack * G4ExcitedString::GetKineticTrack() const |
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| 237 | { |
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| 238 | return theTrack; |
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| 239 | } |
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| 240 | |
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| 241 | inline |
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| 242 | G4bool G4ExcitedString::IsExcited() const |
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| 243 | { |
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| 244 | return theTrack == 0; |
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| 245 | } |
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| 246 | |
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| 247 | |
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| 248 | #endif |
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| 249 | |
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| 250 | |
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