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1 // 2 // ******************************************************************** 3 // * License and Disclaimer * 4 // * * 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. * 10 // * * 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitation of liability. * 17 // * * 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************************************** 25 // 26 // 27 // G4 Low energy model: n-p scattering 28 // F.W. Jones, L.G. Greeniaus, H.P. Wellisch 29 // 30 // For further comments see G4LEnpData.hh and G4LEnp.cc 31 // 32 // 02.01.2014 V. Grichine add SampInvariantT for testing ds/dt 33 34 #ifndef G4LEnp_h 35 #define G4LEnp_h 1 36 37 #include "globals.hh" 38 #include "G4HadronElastic.hh" 39 40 class G4LEnp : public G4HadronElastic // G4HadronicInteraction 41 { 42 private: 43 44 enum { NENERGY=39, NANGLE=180 }; 45 46 public: 47 48 explicit G4LEnp(); 49 50 ~G4LEnp() override; 51 52 G4HadFinalState* ApplyYourself(const G4HadProjectile& aTrack, 53 G4Nucleus& targetNucleus) override; 54 55 // sample momentum transfer using Lab. momentum 56 57 G4double SampleInvariantT(const G4ParticleDefinition* p, 58 G4double plab, G4int Z, G4int A) override; 59 private: 60 61 // The following arrays are declared static to allow the use of initializers. 62 // They are initialized in G4LEnpData.hh 63 64 static const G4float sig[NENERGY][NANGLE]; 65 static const G4float pcm[NENERGY], elab[NENERGY]; 66 static const G4float dsigmax[NENERGY], sigtot[NENERGY]; 67 68 }; 69 70 #endif 71