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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  // G4 Low energy model: n-n or p-p scattering
0028  // F.W. Jones, L.G. Greeniaus, H.P. Wellisch
0029  //
0030  // For further comments see G4LEnpData.hh and G4LEnp.cc
0031  //
0032 
0033 #ifndef G4AngularDistributionNP_h
0034 #define G4AngularDistributionNP_h 1
0035 
0036 #include "globals.hh"
0037 
0038 #include "G4VAngularDistribution.hh"
0039 
0040 class G4AngularDistributionNP : public G4VAngularDistribution
0041 {
0042  private:
0043 
0044 //   enum { NENERGY=22, NANGLE=180 };
0045    enum { NENERGY=39, NANGLE=180 };
0046 
0047  public:
0048 
0049   G4AngularDistributionNP() { }
0050 
0051   virtual ~G4AngularDistributionNP() { }
0052 
0053   virtual G4double CosTheta(G4double s, G4double m1, G4double m2) const;
0054 
0055   virtual G4double Phi() const;
0056 
0057  private:
0058 
0059    static const G4float sig[NENERGY][NANGLE];
0060    static const G4float pcm[NENERGY], elab[NENERGY],
0061      dsigmax[NENERGY], sigtot[NENERGY];
0062 };
0063 
0064 #endif
0065