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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 #ifndef G4MesonAbsorption_hh
0027 #define G4MesonAbsorption_hh
0028 
0029 #include <vector>
0030 #include "G4CollisionInitialState.hh"
0031 #include "G4KineticTrack.hh"
0032 #include "G4BCAction.hh"
0033 
0034 class G4MesonAbsorption : public G4BCAction
0035 {
0036   public:
0037   G4MesonAbsorption(){}
0038   virtual ~G4MesonAbsorption(){}
0039 
0040   virtual const std::vector<G4CollisionInitialState *> &
0041          GetCollisions(G4KineticTrack * aProjectile, 
0042                    std::vector<G4KineticTrack *> & someCandidates,
0043                G4double aCurrentTime);
0044 
0045   virtual G4KineticTrackVector * 
0046          GetFinalState(G4KineticTrack * aProjectile, 
0047                    std::vector<G4KineticTrack *> & theTargets);
0048 
0049   G4CollisionInitialState * GetCollision(G4KineticTrack * projectile, 
0050                                          std::vector<G4KineticTrack *> targets);
0051 
0052   private:
0053     G4MesonAbsorption(const G4MesonAbsorption &);
0054     G4MesonAbsorption & operator= (const G4MesonAbsorption &);
0055 
0056   private:
0057   G4double GetTimeToAbsorption(const G4KineticTrack& trk1, const G4KineticTrack& trk2);
0058   
0059   void FindAndFillCluster(G4KineticTrackVector & result, 
0060                          G4KineticTrack * aProjectile,
0061              std::vector<G4KineticTrack *> & someCandidates);
0062   
0063   G4double AbsorptionCrossSection(const G4KineticTrack & trk1, const G4KineticTrack & trk2);  
0064   private:
0065   std::vector<G4CollisionInitialState *> theCollisions;
0066     
0067 };
0068 
0069 #endif