include/Geant4/G4VRestDiscreteProcess.hh

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0025 //
0026 // G4VRestDiscreteProcess
0027 //
0028 // Class description:
0029 //
0030 // Abstract class which defines the public behavior of
0031 // rest + discrete physics interactions.
0032
0033 // Authors:
0034 // - 2 December 1995, G.Cosmo - First implementation, based on object model
0035 // - 8 January 1997, H.Kurashige - New Physics scheme
0036 // --------------------------------------------------------------------
0037 #ifndef G4VRestDiscreteProcess_hh
0038 #define G4VRestDiscreteProcess_hh 1
0039
0040 #include "globals.hh"
0041 #include "G4ios.hh"
0042
0043 #include "G4VProcess.hh"
0044
0045 class G4VRestDiscreteProcess : public G4VProcess
0046 {
0047   public:
0048
0049     G4VRestDiscreteProcess(const G4String& ,
0050                G4ProcessType aType = fNotDefined);
0051     G4VRestDiscreteProcess(G4VRestDiscreteProcess&);
0052
0053     virtual ~G4VRestDiscreteProcess();
0054
0055     G4VRestDiscreteProcess& operator=(const G4VRestDiscreteProcess&) = delete;
0056
0057     virtual G4double PostStepGetPhysicalInteractionLength(
0058                              const G4Track& track,
0059                  G4double previousStepSize,
0060                  G4ForceCondition* condition
0061                 );
0062
0063     virtual G4VParticleChange* PostStepDoIt(
0064                  const G4Track& ,
0065                  const G4Step&
0066                 );
0067
0068     virtual G4double AtRestGetPhysicalInteractionLength(
0069                              const G4Track& ,
0070                  G4ForceCondition*
0071                 );
0072
0073     virtual G4VParticleChange* AtRestDoIt(
0074                  const G4Track& ,
0075                  const G4Step&
0076                 );
0077
0078     virtual G4double AlongStepGetPhysicalInteractionLength(
0079                              const G4Track&,
0080                  G4double  ,
0081                  G4double  ,
0082                  G4double& ,
0083                              G4GPILSelection*
0084                 ) { return -1.0; }
0085       // No operation in AlongStepDoIt
0086
0087     virtual G4VParticleChange* AlongStepDoIt(
0088                  const G4Track& ,
0089                  const G4Step&
0090                 ) { return 0; }
0091       // No operation in AlongStepDoIt
0092
0093   protected:
0094
0095     virtual G4double GetMeanFreePath(const G4Track& aTrack,
0096                                      G4double previousStepSize,
0097                                      G4ForceCondition* condition) = 0;
0098       // Calculates from the macroscopic cross-section a mean
0099       // free path, the value is returned in units of distance
0100
0101     virtual G4double GetMeanLifeTime(const G4Track& aTrack,
0102                                      G4ForceCondition* condition) = 0;
0103       // Calculates the mean life-time (i.e. for decays) of the
0104       // particle at rest due to the occurrence of the given process,
0105       // or converts the probability of interaction (i.e. for
0106       // annihilation) into the life-time of the particle for the
0107       // occurrence of the given process
0108
0109   private:
0110
0111     G4VRestDiscreteProcess();
0112       // Hidden default constructor
0113 };
0114
0115 #endif