Gabriele Cosmo
133 lines
4.5 KiB
C++
133 lines
4.5 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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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 statement,
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// and all its terms.
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//
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// $Id: G4MuPairProduction.hh,v 1.2.8.1 1999/12/07 20:50:43 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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// $Id:
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// For information related to this code contact:
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// CERN, CN Division, ASD group
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// History: first implementation, based on object model of
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// 2nd December 1995, G.Cosmo
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// -------- G4MuPairProduction physics process ---------
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// by Laszlo Urban, May 1998
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// ************************************************************
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#ifndef G4MuPairproduction_h
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#define G4MuPairproduction_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4MuEnergyLoss.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4OrderedTable.hh"
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#include "G4PhysicsTable.hh"
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#include "G4PhysicsLogVector.hh"
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class G4MuPairProduction : public G4MuEnergyLoss
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{
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public:
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G4MuPairProduction(const G4String& processName = "MuPairProd");
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~G4MuPairProduction();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void SetPhysicsTableBining(G4double lowE,G4double highE,G4int nBins);
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void BuildPhysicsTable(const G4ParticleDefinition& ParticleType);
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void BuildLossTable(const G4ParticleDefinition& ParticleType);
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void BuildLambdaTable(const G4ParticleDefinition& ParticleType);
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void PrintInfoDefinition();
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G4double GetMeanFreePath( const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition ) ;
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G4VParticleChange *PostStepDoIt(const G4Track& track,
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const G4Step& Step ) ;
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protected:
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G4double ComputeMeanFreePath(const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4Material* aMaterial);
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void ComputePartialSumSigma(const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4Material* aMaterial);
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virtual G4double ComputeMicroscopicCrossSection(
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const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double ElectronEnergyCut,
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G4double PositronEnergyCut);
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G4double ComputeDDMicroscopicCrossSection(
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const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double PairEnergy,
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G4double asymmetry);
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G4double ComputeDMicroscopicCrossSection(
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const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double PairEnergy);
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private:
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G4MuPairProduction & operator=(const G4MuPairProduction &right);
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G4MuPairProduction(const G4MuPairProduction&);
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G4double ComputePairLoss( const G4ParticleDefinition* ParticleType,
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G4double Z,G4double T,G4double ElectronCut,
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G4double PositronCut);
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G4Element* SelectRandomAtom(G4Material* aMaterial) const;
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void MakeSamplingTables( const G4ParticleDefinition* ParticleType );
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private:
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G4PhysicsTable* theMeanFreePathTable ;
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G4OrderedTable PartialSumSigma;
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G4double LowestKineticEnergy;
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G4double HighestKineticEnergy;
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G4int TotBin;
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const G4double* ElectronCutInKineticEnergy;
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const G4double* PositronCutInKineticEnergy;
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G4double ElectronCutInKineticEnergyNow;
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G4double PositronCutInKineticEnergyNow;
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// tables for sampling ..............
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static G4int nzdat,ntdat,NBIN ;
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static G4double zdat[5],tdat[8] ;
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static G4double ya[1000],proba[5][8][1000] ;
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};
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#include "G4MuPairProduction.icc"
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#endif
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