include/Geant4/G4NucleonNuclearCrossSection.hh

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0025 //
0026 // author: Vladimir.Grichine@cern.ch
0027 //
0028 // Implements data from: Barashenkov V.S., Nucleon-Nucleus Cross Section,
0029 // Preprint JINR P2-89-770, p. 12, Dubna 1989 (scanned version from KEK)
0030 // Based on G. Folger version of G4PiNuclearCrossSection class
0031 //
0032 // Modified:
0033 // 05.03.2024 V.Ivanchenko removed obsolete methods and calls
0034 //
0035
0036 #ifndef G4NucleonNuclearCrossSection_h
0037 #define G4NucleonNuclearCrossSection_h
0038
0039 #include "G4VCrossSectionDataSet.hh"
0040 #include "G4ParticleDefinition.hh"
0041 #include "globals.hh"
0042
0043 class G4ComponentBarNucleonNucleusXsc;
0044 class G4ParticleDefinition;
0045
0046 class G4NucleonNuclearCrossSection : public G4VCrossSectionDataSet
0047 {
0048 public:
0049
0050   G4NucleonNuclearCrossSection();
0051   ~G4NucleonNuclearCrossSection() override = default;
0052
0053   static const char* Default_Name() { return "BarashenkovNucleonXS"; }
0054
0055   G4bool IsElementApplicable(const G4DynamicParticle* aParticle,
0056                  G4int Z, const G4Material* mat) final;
0057
0058   // return inelastic x-section
0059   G4double GetElementCrossSection(const G4DynamicParticle* aParticle,
0060                                   G4int Z, const G4Material* mat=nullptr) final;
0061
0062   void CrossSectionDescription(std::ostream&) const final;
0063
0064   // return elastic x-section
0065   inline G4double GetElasticCrossSection(const G4DynamicParticle* aParticle,
0066                      G4int Z);
0067
0068   // access methods should be called after ComputeCrossSection(...)
0069   inline G4double GetTotalXsc()     { return fTotalXsc; };
0070   inline G4double GetInelasticXsc() { return fInelasticXsc; };
0071   inline G4double GetElasticXsc()   { return fElasticXsc; };
0072
0073   G4NucleonNuclearCrossSection& operator=
0074   (const G4NucleonNuclearCrossSection &right) = delete;
0075   G4NucleonNuclearCrossSection(const G4NucleonNuclearCrossSection&) = delete;
0076
0077 private:
0078
0079   void ComputeCrossSections(const G4ParticleDefinition*,
0080                             G4double kinEnergy, G4int Z);
0081
0082   G4ComponentBarNucleonNucleusXsc* fBarash;
0083
0084   G4double fTotalXsc{0.0};
0085   G4double fInelasticXsc{0.0};
0086   G4double fElasticXsc{0.0};
0087 };
0088
0089 inline
0090 G4double G4NucleonNuclearCrossSection::GetElasticCrossSection(
0091          const G4DynamicParticle* dp, G4int Z)
0092 {
0093   ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
0094   return fElasticXsc;
0095 }
0096
0097 #endif