Gabriele Cosmo
246 lines
9.6 KiB
C++
246 lines
9.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// Calculation of the total, elastic and inelastic cross-sections
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// based on parametrisations of (proton, pion, kaon, photon) nucleon
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// cross-sections and the hadron-nucleous cross-section model in
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// the framework of Glauber-Gribov approach
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//
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// 25.04.12 V. Grichine - first implementation based on
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// G4GlauberGribovCrossSection old interface
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//
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// 04.09.18 V. Ivantchenko Major revision of interfaces and implementation
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// 01.10.18 V. Grichine strange hyperon xsc
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// 27.05.19 V. Ivantchenko Removed obsolete methods and members
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#ifndef G4ComponentGGHadronNucleusXsc_h
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#define G4ComponentGGHadronNucleusXsc_h 1
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#include "globals.hh"
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#include "G4Proton.hh"
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#include "G4Nucleus.hh"
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#include "G4VComponentCrossSection.hh"
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class G4ParticleDefinition;
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class G4HadronNucleonXsc;
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class G4Pow;
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class G4ComponentGGHadronNucleusXsc final : public G4VComponentCrossSection
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{
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public:
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explicit G4ComponentGGHadronNucleusXsc();
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~G4ComponentGGHadronNucleusXsc() final;
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static const char* Default_Name() { return "Glauber-Gribov"; }
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// virtual interface methods
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G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4double A) final;
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G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4int A) final;
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G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4double A) final;
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G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4int A) final;
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G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4double A) final;
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G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4int A) final;
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G4double ComputeQuasiElasticRatio(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4int A) final;
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// Glauber-Gribov cross section
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void ComputeCrossSections(const G4ParticleDefinition* aParticle,
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G4double kinEnergy, G4int Z, G4int A, G4int nL = 0);
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// additional public methods
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G4double GetProductionElementCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4double A);
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G4double GetProductionIsotopeCrossSection(const G4ParticleDefinition* aParticle,
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G4double kinEnergy,
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G4int Z, G4int A);
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G4double GetRatioSD(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetRatioQE(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetHadronNucleonXsc(const G4DynamicParticle*, const G4Element*);
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G4double GetHadronNucleonXsc(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, const G4Element*);
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G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetHadronNucleonXscNS(const G4DynamicParticle*, const G4Element*);
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G4double GetHadronNucleonXscNS(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetHNinelasticXsc(const G4DynamicParticle*, const G4Element*);
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G4double GetHNinelasticXsc(const G4DynamicParticle*, G4int At, G4int Zt);
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G4double GetHNinelasticXscVU(const G4DynamicParticle*, G4int At, G4int Zt);
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void Description(std::ostream&) const final;
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inline G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
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const G4Isotope* iso = nullptr,
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const G4Element* elm = nullptr,
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const G4Material* mat = nullptr);
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inline G4double GetElasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
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inline G4double GetInelasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
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inline G4double GetAxsc2piR2() const { return fAxsc2piR2; };
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inline G4double GetModelInLog() const { return fModelInLog; };
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inline G4double GetTotalGlauberGribovXsc() const { return fTotalXsc; };
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inline G4double GetElasticGlauberGribovXsc() const { return fElasticXsc; };
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inline G4double GetInelasticGlauberGribovXsc() const { return fInelasticXsc; };
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inline G4double GetProductionGlauberGribovXsc() const { return fProductionXsc; };
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inline G4double GetDiffractionGlauberGribovXsc() const { return fDiffractionXsc; };
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inline G4double GetParticleBarCorTot(const G4ParticleDefinition* theParticle, G4int Z);
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inline G4double GetParticleBarCorIn(const G4ParticleDefinition* theParticle, G4int Z);
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private:
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static const G4double fNeutronBarCorrectionTot[93];
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static const G4double fNeutronBarCorrectionIn[93];
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static const G4double fProtonBarCorrectionTot[93];
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static const G4double fProtonBarCorrectionIn[93];
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static const G4double fPionPlusBarCorrectionTot[93];
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static const G4double fPionPlusBarCorrectionIn[93];
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static const G4double fPionMinusBarCorrectionTot[93];
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static const G4double fPionMinusBarCorrectionIn[93];
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G4double fTotalXsc, fElasticXsc, fInelasticXsc, fProductionXsc, fDiffractionXsc;
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G4double fAxsc2piR2, fModelInLog;
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G4double fEnergy; //Cache
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const G4ParticleDefinition* theGamma;
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const G4ParticleDefinition* theProton;
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const G4ParticleDefinition* theNeutron;
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const G4ParticleDefinition* theAProton;
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const G4ParticleDefinition* theANeutron;
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const G4ParticleDefinition* thePiPlus;
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const G4ParticleDefinition* thePiMinus;
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const G4ParticleDefinition* theKPlus;
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const G4ParticleDefinition* theKMinus;
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const G4ParticleDefinition* theK0S;
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const G4ParticleDefinition* theK0L;
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const G4ParticleDefinition* theLambda;
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G4HadronNucleonXsc* hnXsc;
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// Cache
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const G4ParticleDefinition* fParticle;
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G4int fZ, fA, fL;
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};
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////////////////////////////////////////////////////////////////
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//
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// Inlines
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inline G4double
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G4ComponentGGHadronNucleusXsc::GetIsoCrossSection(const G4DynamicParticle* dp,
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G4int Z, G4int A,
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const G4Isotope*,
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const G4Element*,
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const G4Material*)
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{
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ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
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return fTotalXsc;
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}
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inline G4double
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G4ComponentGGHadronNucleusXsc::GetElasticGlauberGribov(
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const G4DynamicParticle* dp, G4int Z, G4int A)
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{
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ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
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return fElasticXsc;
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}
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/////////////////////////////////////////////////////////////////
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inline G4double
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G4ComponentGGHadronNucleusXsc::GetInelasticGlauberGribov(
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const G4DynamicParticle* dp, G4int Z, G4int A)
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{
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ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
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return fInelasticXsc;
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}
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/////////////////////////////////////////////////////////////////////
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//
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// return correction at Tkin = 90*GeV GG -> Barashenkov tot xsc, when it
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// is available, else return 1.0
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inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorTot(
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const G4ParticleDefinition* theParticle, G4int ZZ)
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{
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G4double cor = 1.0;
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G4int z = std::min(92, std::max(ZZ, 1));
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if( theParticle == theProton ) cor = fProtonBarCorrectionTot[z];
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else if( theParticle == theNeutron) cor = fNeutronBarCorrectionTot[z];
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else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionTot[z];
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else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionTot[z];
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return cor;
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}
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/////////////////////////////////////////////////////////////////////
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//
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// return correction at Tkin = 90*GeV GG -> Barashenkov in xsc, when it
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// is available, else return 1.0
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inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorIn(
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const G4ParticleDefinition* theParticle, G4int ZZ)
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{
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G4double cor = 1.0;
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G4int z = std::min(92, std::max(ZZ, 1));
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if( theParticle == theProton ) cor = fProtonBarCorrectionIn[z];
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else if( theParticle == theNeutron) cor = fNeutronBarCorrectionIn[z];
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else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionIn[z];
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else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionIn[z];
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return cor;
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}
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#endif
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