Gabriele Cosmo
104 lines
3.7 KiB
C++
104 lines
3.7 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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#ifndef G4IonsShenCrossSection_h
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#define G4IonsShenCrossSection_h
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//
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// Class Description
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// Implementation of formulas
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// Shen et al. Nuc. Phys. A 491 130 (1989);
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// Total Reaction Cross Section for Heavy-Ion Collisions
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//
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// Class Description - End
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// 18-Sep-2003 First version is written by T. Koi
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// 12-Nov-2003 Set upper limit at 10 GeV/n
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// 12-Nov-2003 Insted of the lower limit,
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// 0 is returned to a partilce with energy lowae than 10 MeV/n
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// 15-Nov-2006 Change upper limit to 1 TeV/n
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// However above 10GeV/n XS become constant.
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// 23-Dec-2006 Isotope dependence added by D. Wright
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//
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#include "globals.hh"
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#include "G4Proton.hh"
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#include "G4VCrossSectionDataSet.hh"
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class G4IonsShenCrossSection : public G4VCrossSectionDataSet
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{
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public:
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G4IonsShenCrossSection ():
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upperLimit ( 1 * TeV ),
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lowerLimit ( 10 * MeV ),
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r0 ( 1.1 )
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{
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}
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virtual
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G4bool IsApplicable(const G4DynamicParticle* aDP, const G4Element*)
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{
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return IsZAApplicable(aDP, 0., 0.);
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}
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virtual
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G4bool IsZAApplicable(const G4DynamicParticle* aDP,
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G4double /*ZZ*/, G4double /*AA*/)
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{
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G4int baryonNumber = aDP->GetDefinition()->GetBaryonNumber();
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G4double kineticEnergy = aDP->GetKineticEnergy();
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if ( kineticEnergy / baryonNumber <= upperLimit )
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return true;
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return false;
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}
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virtual
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G4double GetCrossSection(const G4DynamicParticle*,
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const G4Element*, G4double aTemperature);
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virtual
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G4double GetIsoZACrossSection(const G4DynamicParticle*, G4double ZZ,
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G4double AA, G4double aTemperature);
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virtual
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void BuildPhysicsTable(const G4ParticleDefinition&)
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{}
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virtual
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void DumpPhysicsTable(const G4ParticleDefinition&)
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{G4cout << "G4IonsShenCrossSection: uses Shen formula"<<G4endl;}
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private:
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const G4double upperLimit;
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const G4double lowerLimit;
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const G4double r0;
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G4double calEcmValue ( const G4double , const G4double , const G4double );
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G4double calCeValue ( const G4double );
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};
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#endif
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