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26 // 26 //
27 // 27 //
28 // 28 //
29 // ------------------------------------------- 29 // ------------------------------------------------------------
30 // GEANT 4 class header file 30 // GEANT 4 class header file
31 // 31 //
32 // 32 //
33 #ifndef G4UnknownDecay_h 33 #ifndef G4UnknownDecay_h
34 #define G4UnknownDecay_h 1 34 #define G4UnknownDecay_h 1
35 35
36 #include <CLHEP/Units/PhysicalConstants.h> 36 #include <CLHEP/Units/PhysicalConstants.h>
37 37
38 #include "G4ios.hh" 38 #include "G4ios.hh"
39 #include "globals.hh" 39 #include "globals.hh"
40 #include "G4VDiscreteProcess.hh" 40 #include "G4VDiscreteProcess.hh"
41 #include "G4ParticleChangeForDecay.hh" 41 #include "G4ParticleChangeForDecay.hh"
42 42
43 class G4UnknownDecay : public G4VDiscreteProce 43 class G4UnknownDecay : public G4VDiscreteProcess
44 { 44 {
45 // Class Description 45 // Class Description
46 // This class is a decay process for "unkno 46 // This class is a decay process for "unknown" particle.
47 47
48 public: 48 public:
49 // Constructors 49 // Constructors
50 G4UnknownDecay(const G4String& processName 50 G4UnknownDecay(const G4String& processName ="UnknownDecay");
51 51
52 // Destructor 52 // Destructor
53 virtual ~G4UnknownDecay(); 53 virtual ~G4UnknownDecay();
54 54
55 private: 55 private:
56 // copy constructor 56 // copy constructor
57 G4UnknownDecay(const G4UnknownDecay &rig 57 G4UnknownDecay(const G4UnknownDecay &right);
58 58
59 // Assignment Operation (generated) 59 // Assignment Operation (generated)
60 G4UnknownDecay & operator=(const G4Unkno 60 G4UnknownDecay & operator=(const G4UnknownDecay &right);
61 61
62 public: //With Description 62 public: //With Description
63 63
64 virtual G4VParticleChange *PostStepDoIt( 64 virtual G4VParticleChange *PostStepDoIt(
65 const G4Track& aTrack, 65 const G4Track& aTrack,
66 const G4Step& aSt 66 const G4Step& aStep
67 ) override; 67 ) override;
68 68
69 virtual void BuildPhysicsTable(const G4Pa 69 virtual void BuildPhysicsTable(const G4ParticleDefinition&) override;
70 // In G4UnknownDecay, thePhysicsTable sto 70 // In G4UnknownDecay, thePhysicsTable stores values of
71 // beta * std::sqrt( 1 - beta*beta) 71 // beta * std::sqrt( 1 - beta*beta)
72 // as a function of normalized kinetic en 72 // as a function of normalized kinetic enregy (=Ekin/mass),
73 // becasuse this table is universal for a 73 // becasuse this table is universal for all particle types,
74 74
75 75
76 virtual G4bool IsApplicable(const G4Partic 76 virtual G4bool IsApplicable(const G4ParticleDefinition&) override;
77 // returns "true" if the decay process can 77 // returns "true" if the decay process can be applied to
78 // the particle type. 78 // the particle type.
79 79
80 virtual void ProcessDescription(std::ostre 80 virtual void ProcessDescription(std::ostream& outFile) const override;
81 // 81 //
82 82
83 protected: // With Description 83 protected: // With Description
84 virtual G4VParticleChange* DecayIt( 84 virtual G4VParticleChange* DecayIt(
85 const G4Track& aTrack, 85 const G4Track& aTrack,
86 const G4Step& aStep 86 const G4Step& aStep
87 ) ; 87 ) ;
88 // The DecayIt() method returns by pointer 88 // The DecayIt() method returns by pointer a particle-change object,
89 // which has information of daughter parti 89 // which has information of daughter particles.
90 90
91 public: 91 public:
92 92
93 virtual G4double PostStepGetPhysicalIntera 93 virtual G4double PostStepGetPhysicalInteractionLength(
94 const G4Track& tr 94 const G4Track& track,
95 G4double previo 95 G4double previousStepSize,
96 G4ForceCondition* 96 G4ForceCondition* condition
97 ) override; 97 ) override;
98 98
99 99
100 protected: // With Description 100 protected: // With Description
101 // GetMeanFreePath returns ctau*beta*gamma 101 // GetMeanFreePath returns ctau*beta*gamma for decay in flight
102 virtual G4double GetMeanFreePath(const G4T 102 virtual G4double GetMeanFreePath(const G4Track& aTrack,
103 G4double previ 103 G4double previousStepSize,
104 G4ForceCondition 104 G4ForceCondition* condition
105 ) override; 105 ) override;
106 106
107 private: 107 private:
108 G4int verboseLevel; 108 G4int verboseLevel;
109 // controle flag for output message 109 // controle flag for output message
110 // 0: Silent 110 // 0: Silent
111 // 1: Warning message 111 // 1: Warning message
112 // 2: More 112 // 2: More
113 113
114 private: 114 private:
115 // HighestValue. 115 // HighestValue.
116 const G4double HighestValue; 116 const G4double HighestValue;
117 117
118 // ParticleChange for decay process 118 // ParticleChange for decay process
119 G4ParticleChangeForDecay fParticleChangeFo 119 G4ParticleChangeForDecay fParticleChangeForDecay;
120 120
121 }; 121 };
122 122
123 inline 123 inline
124 G4double G4UnknownDecay::PostStepGetPhysicalI 124 G4double G4UnknownDecay::PostStepGetPhysicalInteractionLength(
125 const G4Track& tr 125 const G4Track& track,
126 G4double /*prev 126 G4double /*previousStepSize*/,
127 G4ForceCondition* 127 G4ForceCondition* condition
128 ) 128 )
129 { 129 {
130 // pre-assigned UnknownDecay time 130 // pre-assigned UnknownDecay time
131 G4double pTime = track.GetDynamicParticle()- 131 G4double pTime = track.GetDynamicParticle()->GetPreAssignedDecayProperTime();
132 132
133 if (pTime < 0.) pTime = DBL_MIN; 133 if (pTime < 0.) pTime = DBL_MIN;
134 134
135 // condition is set to "Not Forced" 135 // condition is set to "Not Forced"
136 *condition = NotForced; 136 *condition = NotForced;
137 137
138 // reminder proper time 138 // reminder proper time
139 G4double remainder = pTime - track.GetProper 139 G4double remainder = pTime - track.GetProperTime();
140 if (remainder <= 0.0) remainder = DBL_MIN; 140 if (remainder <= 0.0) remainder = DBL_MIN;
141 141
142 // use pre-assigned Decay time to determine 142 // use pre-assigned Decay time to determine PIL
143 //return GetMeanFreePath(track, previousStep 143 //return GetMeanFreePath(track, previousStepSize, condition);
144 return remainder*CLHEP::c_light; 144 return remainder*CLHEP::c_light;
145 145
146 } 146 }
147 147
148 inline 148 inline
149 G4VParticleChange* G4UnknownDecay::PostStepD 149 G4VParticleChange* G4UnknownDecay::PostStepDoIt(
150 const G4Track& aTrack, 150 const G4Track& aTrack,
151 const G4Step& aStep 151 const G4Step& aStep
152 ) 152 )
153 { 153 {
154 return DecayIt(aTrack, aStep); 154 return DecayIt(aTrack, aStep);
155 } 155 }
156 156
157 #endif 157 #endif
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