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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 //
0027 //
0028 // Geant4 Header : G4NeutrinoElectronNcModel
0029 //
0030 // Author : V.Grichine 6.4.17
0031 //  
0032 // Modified:
0033 //
0034 // Class Description
0035 // Default model for neutrino-electron elastic (neutral current) scattering; 
0036 // Class Description - End
0037 
0038 #ifndef G4NeutrinoElectronNcModel_h
0039 #define G4NeutrinoElectronNcModel_h 1
0040  
0041 #include "globals.hh"
0042 #include "G4HadronElastic.hh"
0043 #include "G4HadProjectile.hh"
0044 #include "G4Nucleus.hh"
0045 #include "G4NucleiProperties.hh"
0046 
0047 class G4ParticleDefinition;
0048 
0049 class G4NeutrinoElectronNcModel : public G4HadronElastic
0050 {
0051 public:
0052 
0053   G4NeutrinoElectronNcModel(const G4String& name = "nu-e-elastic");
0054 
0055   virtual ~G4NeutrinoElectronNcModel();
0056 
0057   virtual G4bool IsApplicable(const G4HadProjectile & aTrack, 
0058                   G4Nucleus & targetNucleus);
0059 
0060   virtual G4HadFinalState * ApplyYourself(const G4HadProjectile & aTrack, 
0061                       G4Nucleus & targetNucleus);
0062 
0063   // sample recoil electron energy in lab frame
0064 
0065   G4double SampleElectronTkin(const G4HadProjectile* aParticle);
0066 
0067   void SetCutEnergy(G4double ec){fCutEnergy=ec;};
0068   G4double GetCutEnergy(){return fCutEnergy;};
0069 
0070 
0071   
0072   virtual void ModelDescription(std::ostream&) const;
0073 
0074 private:
0075 
0076   G4ParticleDefinition* theElectron; 
0077   G4double fSin2tW;    // sin^2theta_Weinberg
0078   G4double fCutEnergy; // minimal recoil electron energy detected
0079 
0080 };
0081 
0082 
0083 
0084 #endif