Gabriele Cosmo
85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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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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#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 ( 10 * GeV ),
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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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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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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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