| 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 | #ifndef G4QParton_h |
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| 28 | #define G4QParton_h 1 |
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| 29 | |
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| 30 | // $Id: G4QParton.hh,v 1.2 2006/12/12 11:02:22 mkossov Exp $ |
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| 31 | // GEANT4 tag $Name: $ |
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| 32 | // |
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| 33 | // ------------------------------------------------------------ |
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| 34 | // GEANT 4 class header file |
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| 35 | // |
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| 36 | // ---------------- G4QParton ---------------- |
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| 37 | // by Mikhail Kosov, October 2006 |
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| 38 | // class for Quark-Parton for quark-level models |
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| 39 | // For comparison mirror member functions are taken from G4 class: |
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| 40 | // G4Parton |
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| 41 | // ----------------------------------------------------------------- |
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| 42 | |
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| 43 | #include "globals.hh" |
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| 44 | #include "G4ThreeVector.hh" |
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| 45 | #include "G4LorentzVector.hh" |
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| 46 | #include <iostream> |
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| 47 | #include "G4ParticleTable.hh" |
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| 48 | #include "Randomize.hh" |
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| 49 | |
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| 50 | class G4QParton |
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| 51 | { |
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| 52 | public: |
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| 53 | // Constructors |
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| 54 | G4QParton() |
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| 55 | { |
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| 56 | // CHIPS is working only with u, d, and s quarks (SU(3)xSU(3)) (no gluons! M.K.) |
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| 57 | // Random Flavor/Colour/Spin definition for default constructor (with .3 s-suppresion) |
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| 58 | PDGencoding=(G4int)(2.3*G4UniformRand())+1; //@@ What about antiquarks? (M.K.) |
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| 59 | theDefinition=G4ParticleTable::GetParticleTable()->FindParticle(PDGencoding); |
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| 60 | // random colour (1,2,3)=(R,G,B) for quarks and (-1,-2,-3)=(aR,aG,aB) for anti-quarks |
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| 61 | theColour = (G4int)(3*G4UniformRand())+1; |
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| 62 | if(theColour>3) theColour = 3; |
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| 63 | theIsoSpinZ = theDefinition->GetPDGIsospin3(); |
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| 64 | theSpinZ = (G4int)(2*G4UniformRand()) - 0.5; |
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| 65 | } |
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| 66 | G4QParton(G4int PDGencoding); // Collor/Spin are still random |
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| 67 | G4QParton(const G4QParton &right); |
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| 68 | G4QParton(const G4QParton* right); |
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| 69 | |
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| 70 | // Destructor |
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| 71 | ~G4QParton(); |
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| 72 | |
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| 73 | // Operators |
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| 74 | const G4QParton& operator=(const G4QParton &right); |
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| 75 | G4int operator==(const G4QParton &right) const {return this==&right;} |
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| 76 | G4int operator!=(const G4QParton &right) const {return this!=&right;} |
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| 77 | |
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| 78 | // Modifiers |
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| 79 | void DefineMomentumInZ(G4double aLightConeMomentum, G4bool aDirection); |
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| 80 | void SetColour(G4int aColour) {theColour = aColour;} |
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| 81 | void SetX(G4double anX) {theX = anX;} |
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| 82 | void Set4Momentum(const G4LorentzVector& aMomentum) {theMomentum=aMomentum;} |
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| 83 | void SetPosition(const G4ThreeVector& aPosition) {thePosition=aPosition;} |
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| 84 | void SetIsoSpinZ(G4double anIsoSpinZ) {theIsoSpinZ = anIsoSpinZ;} |
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| 85 | void SetSpinZ(G4double aSpinZ) {theSpinZ = aSpinZ;} |
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| 86 | |
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| 87 | // Selectors |
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| 88 | G4int GetPDGCode() const {return PDGencoding;} |
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| 89 | G4ParticleDefinition* GetDefinition() {return theDefinition;} |
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| 90 | const G4ThreeVector& GetPosition()const {return thePosition;} |
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| 91 | const G4LorentzVector& Get4Momentum() const {return theMomentum;} |
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| 92 | G4double GetX() {return theX;} |
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| 93 | G4int GetColour() {return theColour;} |
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| 94 | G4double GetSpinZ() {return theSpinZ;} |
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| 95 | G4double GetIsoSpinZ() {return theIsoSpinZ;} |
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| 96 | G4double GetMass() {return theDefinition->GetPDGMass();} |
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| 97 | G4String GetParticleSubType() {return theDefinition->GetParticleSubType();} |
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| 98 | private: |
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| 99 | // Body |
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| 100 | G4int PDGencoding; |
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| 101 | G4ParticleDefinition* theDefinition; |
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| 102 | G4LorentzVector theMomentum; |
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| 103 | G4ThreeVector thePosition; |
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| 104 | G4int theColour; |
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| 105 | G4double theIsoSpinZ; |
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| 106 | G4double theSpinZ; |
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| 107 | G4double theX; |
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| 108 | }; |
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| 109 | |
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| 110 | #endif |
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