00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 00027 #ifndef G4QParton_h 00028 #define G4QParton_h 1 00029 00030 // $Id$ 00031 // 00032 // ------------------------------------------------------------ 00033 // GEANT 4 class header file 00034 // 00035 // ---------------- G4QParton ---------------- 00036 // by Mikhail Kosov, October 2006 00037 // class for Quark-Parton for quark-level models 00038 // For comparison mirror member functions are taken from G4 class: 00039 // G4Parton 00040 // ----------------------------------------------------------------- 00041 // Short description: The Quark-Gluon String consists of the partons, which 00042 // are quarks and some times gluons. 00043 // ------------------------------------------------------------------------ 00044 00045 #include "globals.hh" 00046 #include "G4QContent.hh" 00047 #include "G4LorentzVector.hh" 00048 #include "G4ThreeVector.hh" 00049 #include <iostream> 00050 #include "Randomize.hh" 00051 00052 class G4QParton 00053 { 00054 public: 00055 // Constructors 00056 G4QParton(); // Default fullRandom constructor 00057 G4QParton(G4int aPGG); // Collor/Spin are still random 00058 G4QParton(const G4QParton &right); 00059 G4QParton(const G4QParton* right); 00060 00061 // Destructor 00062 ~G4QParton(); 00063 00064 // Operators 00065 const G4QParton& operator=(const G4QParton &right); 00066 G4int operator==(const G4QParton &right) const {return this==&right;} 00067 G4int operator!=(const G4QParton &right) const {return this!=&right;} 00068 00069 // Modifiers 00070 void DefineEPz(G4LorentzVector hadr4Mom){theMomentum+=hadr4Mom*theX;} // CHIPS solution 00071 void DefineMomentumInZ(G4double aLightConeMomentum, G4bool aDirection); 00072 void SetPDGCode(G4int aPDG); 00073 void SetColour(G4int aColour) {theColour = aColour;} 00074 void SetX(G4double anX) {theX = anX;} 00075 void Set4Momentum(const G4LorentzVector& aMomentum) {theMomentum=aMomentum;} 00076 void SetPosition(const G4ThreeVector& aPosition) {thePosition=aPosition;} 00077 void SetSpinZ(G4double aSpinZ) {theSpinZ = aSpinZ;} 00078 G4bool ReduceDiQADiQ(G4QParton* d1, G4QParton* d2); // Reduce DiQ-aDiQ to Q-aQ (general) 00079 00080 // Selectors 00081 G4int GetPDGCode() const {return PGGCode;} 00082 G4QContent GetQC() const {return QCont;} 00083 const G4ThreeVector& GetPosition() const {return thePosition;} 00084 const G4LorentzVector& Get4Momentum() const {return theMomentum;} 00085 G4double GetX() {return theX;} 00086 G4int GetColour() {return theColour;} 00087 G4double GetSpinZ() {return theSpinZ;} 00088 const G4int& GetType() const {return theType;} 00089 private: 00090 // Body 00091 G4int PGGCode; 00092 G4QContent QCont; // Quark Content of the parton 00093 G4int theType; // 0 = gluon, 1 = quark-antiquark, 2 = diquark/antidiquark 00094 G4int theColour; 00095 G4double theSpinZ; 00096 G4double theX; 00097 G4ThreeVector thePosition; 00098 G4LorentzVector theMomentum; 00099 }; 00100 00101 #endif