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 #ifndef G4QPartonPair_h 00027 #define G4QPartonPair_h 1 00028 // 00029 // $Id$ 00030 // 00031 // ------------------------------------------------------------ 00032 // GEANT 4 class implementation file 00033 // 00034 // ---------------- G4QParton ---------------- 00035 // by Mikhail Kossov, Oct 2006. 00036 // class for PartonPair (hadron) used by Parton String Models 00037 // ------------------------------------------------------------ 00038 // Short description: Each Quasmon String has a pair of partons 00039 // (quark/diquark-partons) on its ends. During the hadronization 00040 // procedure the rapidity gap between partons shrinks, but the 00041 // parton pair still exists, while it is converted to the final 00042 // meson (quaek-antiquark) or baryon (quark-diquark). 00043 // -------------------------------------------------------------- 00044 // 00045 #include "globals.hh" 00046 #include "G4ThreeVector.hh" 00047 #include "G4LorentzVector.hh" 00048 #include "G4QParton.hh" 00049 00050 class G4QPartonPair 00051 { 00052 public: 00053 enum { DIFFRACTIVE = 1, SOFT = 2, HARD = 3}; 00054 enum { PROJECTILE = 1, TARGET = -1}; 00055 public: 00056 G4QPartonPair(G4QParton* P1, G4QParton* P2, G4int Type=0, G4int Direction=0); 00057 ~G4QPartonPair(); 00058 G4int operator==(const G4QPartonPair &right) const 00059 { 00060 return (CollisionType == right.CollisionType && 00061 *Parton1 == *right.Parton1 && *Parton2 == *right.Parton2) ? 1: 0; 00062 } 00063 G4int operator!=(const G4QPartonPair &right) const 00064 { 00065 return (CollisionType == right.CollisionType && 00066 *Parton1 == *right.Parton1 && *Parton2 == *right.Parton2) ? 0: 1; 00067 } 00068 // Modifiers 00069 void SetPartons(G4QParton* P1, G4QParton* P2) {Parton1=P1; Parton2=P2;} 00070 void SetCollisionType(G4int Type) {CollisionType = Type;} 00071 // Selectors 00072 G4int GetCollisionType() {return CollisionType;} 00073 G4QParton* GetParton1() {return Parton1;} 00074 G4QParton* GetParton2() {return Parton2;} 00075 G4int GetDirection() {return Direction;} 00076 00077 private: 00078 // Body 00079 G4QParton* Parton1; 00080 G4QParton* Parton2; 00081 G4int CollisionType; 00082 G4int Direction; 00083 }; 00084 00085 #endif