Geant4  10.02.p01
G4Decay.hh
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27 // $Id: G4Decay.hh 78547 2014-01-07 09:40:38Z gcosmo $
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29 //
30 // ------------------------------------------------------------
31 // GEANT 4 class header file
32 //
33 // History: first implementation, based on object model of
34 // 7 July 1996 H.Kurashige
35 // ------------------------------------------------------------
36 // New Physics scheme 18 Jan. 1997 H.Kurahige
37 // ------------------------------------------------------------
38 // modified 4 Feb. 1997 H.Kurahige
39 // modified 8 Sep. 1997 H.Kurahige
40 // remove BuildPhysicsTable() 27 Nov. 1997 H.Kurashige
41 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
42 // added aPhysicsTable 2 Aug. 1998 H.Kurashige
43 // PreAssignedDecayTime 18 Jan. 2001 H.Kurashige
44 // Add External Decayer 23 Feb. 2001 H.Kurashige
45 // Remove PhysicsTable 12 Feb. 2002 H.Kurashige
46 // Fixed bug in PostStepGPIL
47 // in case of stopping during AlongStepDoIt 12 Mar. 2004 H.Kurashige
48 // Add GetRemainderLifeTime 10 Aug/2004 H.Kurashige
49 // Add DaughterPolarization 23 July 2008 H.Kurashige
50 
51 
52 #ifndef G4Decay_h
53 #define G4Decay_h 1
54 
55 #include "G4ios.hh"
56 #include "globals.hh"
59 #include "G4DecayProcessType.hh"
60 
61 class G4VExtDecayer;
62 
64 {
65  // Class Description
66  // This class is a decay process
67 
68  public:
69  // Constructors
70  G4Decay(const G4String& processName ="Decay");
71 
72  // Destructor
73  virtual ~G4Decay();
74 
75  private:
76  // copy constructor
77  G4Decay(const G4Decay &right);
78 
79  // Assignment Operation (generated)
80  G4Decay & operator=(const G4Decay &right);
81 
82  public: //With Description
83  // G4Decay Process has both
84  // PostStepDoIt (for decay in flight)
85  // and
86  // AtRestDoIt (for decay at rest)
87 
89  const G4Track& aTrack,
90  const G4Step& aStep
91  );
92 
94  const G4Track& aTrack,
95  const G4Step& aStep
96  );
97 
98  virtual void BuildPhysicsTable(const G4ParticleDefinition&);
99  // In G4Decay, thePhysicsTable stores values of
100  // beta * std::sqrt( 1 - beta*beta)
101  // as a function of normalized kinetic enregy (=Ekin/mass),
102  // becasuse this table is universal for all particle types,
103 
104 
105  virtual G4bool IsApplicable(const G4ParticleDefinition&);
106  // returns "true" if the decay process can be applied to
107  // the particle type.
108 
109  protected: // With Description
110  virtual G4VParticleChange* DecayIt(
111  const G4Track& aTrack,
112  const G4Step& aStep
113  );
114  // The DecayIt() method returns by pointer a particle-change object,
115  // which has information of daughter particles.
116 
117  // Set daughter polarization
118  // NO OPERATION in the base class of G4Decay
119  virtual void DaughterPolarization(const G4Track& aTrack,
120  G4DecayProducts* products);
121 
122  public:
124  const G4Track& track,
126  );
127 
129  const G4Track& track,
130  G4double previousStepSize,
131  G4ForceCondition* condition
132  );
133 
134  protected: // With Description
135  // GetMeanFreePath returns ctau*beta*gamma for decay in flight
136  // GetMeanLifeTime returns ctau for decay at rest
137  virtual G4double GetMeanFreePath(const G4Track& aTrack,
138  G4double previousStepSize,
139  G4ForceCondition* condition
140  );
141 
142  virtual G4double GetMeanLifeTime(const G4Track& aTrack,
143  G4ForceCondition* condition
144  );
145 
146  public: //With Description
147  virtual void StartTracking(G4Track*);
148  virtual void EndTracking();
149  // inform Start/End of tracking for each track to the physics process
150 
151  public: //With Description
153  const G4VExtDecayer* GetExtDecayer() const;
154  // Set/Get External Decayer
155 
157  //Get Remainder of life time at rest decay
158 
159  public:
160  void SetVerboseLevel(G4int value);
161  G4int GetVerboseLevel() const;
162 
163  protected:
165  // controle flag for output message
166  // 0: Silent
167  // 1: Warning message
168  // 2: More
169 
170  protected:
171  // HighestValue.
173 
174  // Remainder of life time at rest
176 
177  // ParticleChange for decay process
179 
180  // External Decayer
182 };
183 
184 inline
186 
187 inline
189 
190 inline
192  const G4Track& aTrack,
193  const G4Step& aStep
194  )
195 {
196  return DecayIt(aTrack, aStep);
197 }
198 
199 
200 inline
202 {
203  return pExtDecayer;
204 }
205 
206 inline
208 {
209  return fRemainderLifeTime;
210 }
211 
212 #endif
213 
214 
215 
216 
217 
218 
219 
220 
221 
222 
G4double condition(const G4ErrorSymMatrix &m)
virtual G4double GetMeanLifeTime(const G4Track &aTrack, G4ForceCondition *condition)
Definition: G4Decay.cc:101
G4Decay & operator=(const G4Decay &right)
virtual G4double GetMeanFreePath(const G4Track &aTrack, G4double previousStepSize, G4ForceCondition *condition)
Definition: G4Decay.cc:130
virtual ~G4Decay()
Definition: G4Decay.cc:82
const G4double HighestValue
Definition: G4Decay.hh:172
virtual G4bool IsApplicable(const G4ParticleDefinition &)
Definition: G4Decay.cc:89
virtual G4VParticleChange * PostStepDoIt(const G4Track &aTrack, const G4Step &aStep)
Definition: G4Decay.cc:482
G4VExtDecayer * pExtDecayer
Definition: G4Decay.hh:181
virtual G4VParticleChange * AtRestDoIt(const G4Track &aTrack, const G4Step &aStep)
Definition: G4Decay.hh:191
virtual void StartTracking(G4Track *)
Definition: G4Decay.cc:368
int G4int
Definition: G4Types.hh:78
virtual G4VParticleChange * DecayIt(const G4Track &aTrack, const G4Step &aStep)
Definition: G4Decay.cc:181
G4double fRemainderLifeTime
Definition: G4Decay.hh:175
G4int verboseLevel
Definition: G4Decay.hh:164
virtual G4double PostStepGetPhysicalInteractionLength(const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
Definition: G4Decay.cc:385
bool G4bool
Definition: G4Types.hh:79
virtual G4double AtRestGetPhysicalInteractionLength(const G4Track &track, G4ForceCondition *condition)
Definition: G4Decay.cc:452
Definition: G4Step.hh:76
G4Decay(const G4String &processName="Decay")
Definition: G4Decay.cc:63
void SetVerboseLevel(G4int value)
Definition: G4Decay.hh:185
virtual void BuildPhysicsTable(const G4ParticleDefinition &)
Definition: G4Decay.cc:176
virtual void DaughterPolarization(const G4Track &aTrack, G4DecayProducts *products)
Definition: G4Decay.cc:362
void SetExtDecayer(G4VExtDecayer *)
Definition: G4Decay.cc:472
double G4double
Definition: G4Types.hh:76
G4ForceCondition
G4double GetRemainderLifeTime() const
Definition: G4Decay.hh:207
virtual void EndTracking()
Definition: G4Decay.cc:376
G4ParticleChangeForDecay fParticleChangeForDecay
Definition: G4Decay.hh:178
G4int GetVerboseLevel() const
Definition: G4Decay.hh:188
const G4VExtDecayer * GetExtDecayer() const
Definition: G4Decay.hh:201