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25 // 25 //
26 // 26 //
27 // 27 //
28 // 28 //
29 // ------------------------------------------- 29 // --------------------------------------------------------------
30 // GEANT 4 class implementation file 30 // GEANT 4 class implementation file
31 // 31 //
32 // History: first implementation, based o 32 // History: first implementation, based on object model of
33 // 2nd December 1995, G.Cosmo 33 // 2nd December 1995, G.Cosmo
34 // 7 July 1996 H.Kurashige 34 // 7 July 1996 H.Kurashige
35 // ------------------------------------------- 35 // ------------------------------------------------------------
36 // remove BuildPhysicsTable() 28 Nov. 1997 36 // remove BuildPhysicsTable() 28 Nov. 1997 H.Kurashige
37 // change DBL_EPSIRON to DBL_MIN 14 Dec. 19 37 // change DBL_EPSIRON to DBL_MIN 14 Dec. 1997 H.Kurashige
38 // modified for new ParticleChange 12 Mar. 1 38 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
39 // modified for "GoodForTrackingFlag" 19 Jun 39 // modified for "GoodForTrackingFlag" 19 June 1998 H.Kurashige
40 // rename thePhysicsTable to aPhyscisTable 2 40 // rename thePhysicsTable to aPhyscisTable 2 Aug. 1998 H.Kurashige
41 // modified IsApplicable in order to protect 41 // modified IsApplicable in order to protect the decay from registered
42 // to resonances 12 Dec. 1998 H.Kurashi 42 // to resonances 12 Dec. 1998 H.Kurashige
43 // remove G4ParticleMomentum 6 Feb. 99 H.Ku 43 // remove G4ParticleMomentum 6 Feb. 99 H.Kurashige
44 // modified IsApplicable to activate G4Deca 44 // modified IsApplicable to activate G4Decay for resonances 1 Mar. 00 H.Kurashige
45 // Add External Decayer 23 Feb. 2001 45 // Add External Decayer 23 Feb. 2001 H.Kurashige
46 // change LowestBinValue,HighestBinValue and 46 // change LowestBinValue,HighestBinValue and TotBin(200) 9 Feb. 2002
47 // 47 //
48 48
49 #include "G4Decay.hh" 49 #include "G4Decay.hh"
50 50
51 #include "G4PhysicalConstants.hh" 51 #include "G4PhysicalConstants.hh"
52 #include "G4SystemOfUnits.hh" 52 #include "G4SystemOfUnits.hh"
53 #include "G4DynamicParticle.hh" 53 #include "G4DynamicParticle.hh"
54 #include "G4DecayProducts.hh" 54 #include "G4DecayProducts.hh"
55 #include "G4DecayTable.hh" 55 #include "G4DecayTable.hh"
56 #include "G4VDecayChannel.hh" 56 #include "G4VDecayChannel.hh"
57 #include "G4PhysicsLogVector.hh" 57 #include "G4PhysicsLogVector.hh"
58 #include "G4ParticleChangeForDecay.hh" 58 #include "G4ParticleChangeForDecay.hh"
59 #include "G4VExtDecayer.hh" 59 #include "G4VExtDecayer.hh"
60 60
61 // constructor 61 // constructor
62 G4Decay::G4Decay(const G4String& processName) 62 G4Decay::G4Decay(const G4String& processName)
63 :G4VRestDiscret 63 :G4VRestDiscreteProcess(processName, fDecay),
64 verboseLevel(1), 64 verboseLevel(1),
65 HighestValue(2 65 HighestValue(20.0),
66 fRemainderLifeTime(-1.0), 66 fRemainderLifeTime(-1.0),
67 pExtDecayer(nu 67 pExtDecayer(nullptr)
68 { 68 {
69 // set Process Sub Type 69 // set Process Sub Type
70 SetProcessSubType(static_cast<int>(DECAY)); 70 SetProcessSubType(static_cast<int>(DECAY));
71 71
72 #ifdef G4VERBOSE 72 #ifdef G4VERBOSE
73 if (GetVerboseLevel()>1) { 73 if (GetVerboseLevel()>1) {
74 G4cout << "G4Decay constructor " << " Na 74 G4cout << "G4Decay constructor " << " Name:" << processName << G4endl;
75 } 75 }
76 #endif 76 #endif
77 77
78 pParticleChange = &fParticleChangeForDecay; 78 pParticleChange = &fParticleChangeForDecay;
79 } 79 }
80 80
81 G4Decay::~G4Decay() 81 G4Decay::~G4Decay()
82 { 82 {
83 if (pExtDecayer != nullptr) { 83 if (pExtDecayer != nullptr) {
84 delete pExtDecayer; 84 delete pExtDecayer;
85 } 85 }
86 } 86 }
87 87
88 G4bool G4Decay::IsApplicable(const G4ParticleD 88 G4bool G4Decay::IsApplicable(const G4ParticleDefinition& aParticleType)
89 { 89 {
90 // check if the particle is stable? 90 // check if the particle is stable?
91 if (aParticleType.GetPDGLifeTime() <0.0) { 91 if (aParticleType.GetPDGLifeTime() <0.0) {
92 return false; 92 return false;
93 } else if (aParticleType.GetPDGMass() <= 0. 93 } else if (aParticleType.GetPDGMass() <= 0.0*MeV) {
94 return false; 94 return false;
95 } else { 95 } else {
96 return true; 96 return true;
97 } 97 }
98 } 98 }
99 99
100 G4double G4Decay::GetMeanLifeTime(const G4Trac 100 G4double G4Decay::GetMeanLifeTime(const G4Track& aTrack ,
101 G4ForceCondi 101 G4ForceCondition*)
102 { 102 {
103 // returns the mean free path in GEANT4 int 103 // returns the mean free path in GEANT4 internal units
104 G4double meanlife; 104 G4double meanlife;
105 105
106 // get particle 106 // get particle
107 const G4DynamicParticle* aParticle = aTrack 107 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
108 const G4ParticleDefinition* aParticleDef = 108 const G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
109 G4double aLife = aParticleDef->GetPDGLifeTi 109 G4double aLife = aParticleDef->GetPDGLifeTime();
110 110
111 // check if the particle is stable? 111 // check if the particle is stable?
112 if (aParticleDef->GetPDGStable()) { 112 if (aParticleDef->GetPDGStable()) {
113 //1000000 times the life time of the unive 113 //1000000 times the life time of the universe
114 meanlife = 1e24 * s; 114 meanlife = 1e24 * s;
115 115
116 } else { 116 } else {
117 meanlife = aLife; 117 meanlife = aLife;
118 } 118 }
119 119
120 #ifdef G4VERBOSE 120 #ifdef G4VERBOSE
121 if (GetVerboseLevel()>1) { 121 if (GetVerboseLevel()>1) {
122 G4cout << "mean life time: "<< meanlife/n 122 G4cout << "mean life time: "<< meanlife/ns << "[ns]" << G4endl;
123 } 123 }
124 #endif 124 #endif
125 125
126 return meanlife; 126 return meanlife;
127 } 127 }
128 128
129 G4double G4Decay::GetMeanFreePath(const G4Trac 129 G4double G4Decay::GetMeanFreePath(const G4Track& aTrack,G4double, G4ForceCondition*)
130 { 130 {
131 // get particle 131 // get particle
132 const G4DynamicParticle* aParticle = aTrack 132 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
133 const G4ParticleDefinition* aParticleDef = 133 const G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
134 G4double aMass = aParticle->GetMass(); 134 G4double aMass = aParticle->GetMass();
135 G4double aLife = aParticleDef->GetPDGLifeTi 135 G4double aLife = aParticleDef->GetPDGLifeTime();
136 136
137 137
138 // returns the mean free path in GEANT4 in 138 // returns the mean free path in GEANT4 internal units
139 G4double pathlength; 139 G4double pathlength;
140 G4double aCtau = c_light * aLife; 140 G4double aCtau = c_light * aLife;
141 141
142 // check if the particle is stable? 142 // check if the particle is stable?
143 if (aParticleDef->GetPDGStable()) { 143 if (aParticleDef->GetPDGStable()) {
144 pathlength = DBL_MAX; 144 pathlength = DBL_MAX;
145 145
146 //check if the particle has very short life 146 //check if the particle has very short life time ?
147 } else if (aCtau < DBL_MIN) { 147 } else if (aCtau < DBL_MIN) {
148 pathlength = DBL_MIN; 148 pathlength = DBL_MIN;
149 149
150 } else { 150 } else {
151 //calculate the mean free path 151 //calculate the mean free path
152 // by using normalized kinetic energy (= E 152 // by using normalized kinetic energy (= Ekin/mass)
153 G4double rKineticEnergy = aParticle->Ge 153 G4double rKineticEnergy = aParticle->GetKineticEnergy()/aMass;
154 if ( rKineticEnergy > HighestValue) { 154 if ( rKineticEnergy > HighestValue) {
155 // gamma >> 1 155 // gamma >> 1
156 pathlength = ( rKineticEnergy + 1.0)* a 156 pathlength = ( rKineticEnergy + 1.0)* aCtau;
157 } else if ( rKineticEnergy < DBL_MIN ) { 157 } else if ( rKineticEnergy < DBL_MIN ) {
158 // too slow particle 158 // too slow particle
159 #ifdef G4VERBOSE 159 #ifdef G4VERBOSE
160 if (GetVerboseLevel()>1) { 160 if (GetVerboseLevel()>1) {
161 G4cout << "G4Decay::GetMeanFreePath() !!p 161 G4cout << "G4Decay::GetMeanFreePath() !!particle stops!!";
162 G4cout << aParticleDef->GetParticleNa 162 G4cout << aParticleDef->GetParticleName() << G4endl;
163 G4cout << "KineticEnergy:" << aParticle->Ge 163 G4cout << "KineticEnergy:" << aParticle->GetKineticEnergy()/GeV <<"[GeV]";
164 } 164 }
165 #endif 165 #endif
166 pathlength = DBL_MIN; 166 pathlength = DBL_MIN;
167 } else { 167 } else {
168 // beta <1 168 // beta <1
169 pathlength = (aParticle->GetTotalMoment 169 pathlength = (aParticle->GetTotalMomentum())/aMass*aCtau ;
170 } 170 }
171 } 171 }
172 return pathlength; 172 return pathlength;
173 } 173 }
174 174
175 void G4Decay::BuildPhysicsTable(const G4Partic 175 void G4Decay::BuildPhysicsTable(const G4ParticleDefinition&)
176 { 176 {
177 return; 177 return;
178 } 178 }
179 179
180 G4VParticleChange* G4Decay::DecayIt(const G4Tr 180 G4VParticleChange* G4Decay::DecayIt(const G4Track& aTrack, const G4Step& )
181 { 181 {
182 // The DecayIt() method returns by pointer a 182 // The DecayIt() method returns by pointer a particle-change object.
183 // Units are expressed in GEANT4 internal un 183 // Units are expressed in GEANT4 internal units.
184 184
185 // Initialize ParticleChange 185 // Initialize ParticleChange
186 // all members of G4VParticleChange are 186 // all members of G4VParticleChange are set to equal to
187 // corresponding member in G4Track 187 // corresponding member in G4Track
188 fParticleChangeForDecay.Initialize(aTrack); 188 fParticleChangeForDecay.Initialize(aTrack);
189 189
190 // get particle 190 // get particle
191 const G4DynamicParticle* aParticle = aTrack. 191 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
192 const G4ParticleDefinition* aParticleDef = a 192 const G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
193 193
194 // check if the particle is stable 194 // check if the particle is stable
195 if (aParticleDef->GetPDGStable()) return &fP 195 if (aParticleDef->GetPDGStable()) return &fParticleChangeForDecay ;
196 196
197 197
198 //check if thePreAssignedDecayProducts exist 198 //check if thePreAssignedDecayProducts exists
199 const G4DecayProducts* o_products = (aPartic 199 const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts());
200 G4bool isPreAssigned = (o_products != nullpt 200 G4bool isPreAssigned = (o_products != nullptr);
201 G4DecayProducts* products = nullptr; 201 G4DecayProducts* products = nullptr;
202 202
203 // decay table 203 // decay table
204 G4DecayTable *decaytable = aParticleDef->G 204 G4DecayTable *decaytable = aParticleDef->GetDecayTable();
205 205
206 // check if external decayer exists 206 // check if external decayer exists
207 G4bool isExtDecayer = (decaytable == nullptr 207 G4bool isExtDecayer = (decaytable == nullptr) && (pExtDecayer != nullptr);
208 208
209 // Error due to NO Decay Table 209 // Error due to NO Decay Table
210 if ( (decaytable == nullptr) && !isExtDecaye 210 if ( (decaytable == nullptr) && !isExtDecayer && !isPreAssigned ){
211 if (GetVerboseLevel()>0) { 211 if (GetVerboseLevel()>0) {
212 G4cout << "G4Decay::DoIt : decay table 212 G4cout << "G4Decay::DoIt : decay table not defined for ";
213 G4cout << aParticle->GetDefinition()->Ge 213 G4cout << aParticle->GetDefinition()->GetParticleName()<< G4endl;
214 } 214 }
215 G4ExceptionDescription ed; <<
216 ed << "For " << aParticle->GetDefinition() <<
217 << " decay probability exist but decay <<
218 << "- the particle will be killed;\n" <<
219 << " isExtDecayer: " << isExtDecayer <<
220 << "; isPreAssigned: " << isPreAssigned <<
221 G4Exception( "G4Decay::DecayIt ", 215 G4Exception( "G4Decay::DecayIt ",
222 "DECAY101",JustWarning, ed); << 216 "DECAY101",JustWarning,
>> 217 "Decay table is not defined");
223 218
224 fParticleChangeForDecay.SetNumberOfSeconda 219 fParticleChangeForDecay.SetNumberOfSecondaries(0);
225 // Kill the parent particle 220 // Kill the parent particle
226 fParticleChangeForDecay.ProposeTrackStatus 221 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
227 fParticleChangeForDecay.ProposeLocalEnergy 222 fParticleChangeForDecay.ProposeLocalEnergyDeposit(0.0);
228 223
229 ClearNumberOfInteractionLengthLeft(); 224 ClearNumberOfInteractionLengthLeft();
230 return &fParticleChangeForDecay ; 225 return &fParticleChangeForDecay ;
231 } 226 }
232 227
233 if (isPreAssigned) { 228 if (isPreAssigned) {
234 // copy decay products 229 // copy decay products
235 products = new G4DecayProducts(*o_products 230 products = new G4DecayProducts(*o_products);
236 } else if ( isExtDecayer ) { 231 } else if ( isExtDecayer ) {
237 // decay according to external decayer 232 // decay according to external decayer
238 products = pExtDecayer->ImportDecayProduct 233 products = pExtDecayer->ImportDecayProducts(aTrack);
239 } else { 234 } else {
240 // Decay according to decay table. 235 // Decay according to decay table.
241 // Keep trying to choose a candidate decay 236 // Keep trying to choose a candidate decay channel if the dynamic mass
242 // of the decaying particle is below the s 237 // of the decaying particle is below the sum of the PDG masses of the
243 // candidate daughter particles. 238 // candidate daughter particles.
244 // This is needed because the decay table 239 // This is needed because the decay table used in Geant4 is based on
245 // the assumption of nominal PDG masses, b 240 // the assumption of nominal PDG masses, but a wide resonance can have
246 // a dynamic masses well below its nominal 241 // a dynamic masses well below its nominal PDG masses, and therefore
247 // some of its decay channels can be below 242 // some of its decay channels can be below the kinematical threshold.
248 // Note that, for simplicity, we ignore he 243 // Note that, for simplicity, we ignore here the possibility that
249 // one or more of the candidate daughter p 244 // one or more of the candidate daughter particles can be, in turn,
250 // wide resonance. However, if this is the 245 // wide resonance. However, if this is the case, and the channel is
251 // accepted, then the masses of the resona 246 // accepted, then the masses of the resonance daughter particles will
252 // be sampled by taking into account their 247 // be sampled by taking into account their widths.
253 G4VDecayChannel* decaychannel = nullptr; 248 G4VDecayChannel* decaychannel = nullptr;
254 G4double massParent = aParticle->GetMass() 249 G4double massParent = aParticle->GetMass();
255 decaychannel = decaytable->SelectADecayCha 250 decaychannel = decaytable->SelectADecayChannel(massParent);
256 if ( decaychannel == nullptr) { 251 if ( decaychannel == nullptr) {
257 // decay channel not found 252 // decay channel not found
258 G4ExceptionDescription ed; 253 G4ExceptionDescription ed;
259 ed << "Can not determine decay channel f 254 ed << "Can not determine decay channel for "
260 << aParticleDef->GetParticleName() << G4end 255 << aParticleDef->GetParticleName() << G4endl
261 << " mass of dynamic particle: " 256 << " mass of dynamic particle: "
262 << massParent/GeV << " (GEV)" << G4endl 257 << massParent/GeV << " (GEV)" << G4endl
263 << " dacay table has " << decaytable->entr 258 << " dacay table has " << decaytable->entries()
264 << " entries" << G4endl; 259 << " entries" << G4endl;
265 G4double checkedmass=massParent; 260 G4double checkedmass=massParent;
266 if (massParent < 0.) { 261 if (massParent < 0.) {
267 checkedmass=aParticleDef->GetPDGMass(); 262 checkedmass=aParticleDef->GetPDGMass();
268 ed << "Using PDG mass ("<<checkedmass/GeV 263 ed << "Using PDG mass ("<<checkedmass/GeV
269 << "(GeV)) in IsOKWithParentMass" << G4en 264 << "(GeV)) in IsOKWithParentMass" << G4endl;
270 } 265 }
271 for (G4int ic =0;ic <decaytable->entries 266 for (G4int ic =0;ic <decaytable->entries();++ic) {
272 G4VDecayChannel * dc= decaytable->GetDecayCh 267 G4VDecayChannel * dc= decaytable->GetDecayChannel(ic);
273 ed << ic << ": BR " << dc->GetBR() << ", IsO 268 ed << ic << ": BR " << dc->GetBR() << ", IsOK? "
274 << dc->IsOKWithParentMass(checkedmass) 269 << dc->IsOKWithParentMass(checkedmass)
275 << ", --> "; 270 << ", --> ";
276 G4int ndaughters=dc->GetNumberOfDaughters(); 271 G4int ndaughters=dc->GetNumberOfDaughters();
277 for (G4int id=0;id<ndaughters;++id) { 272 for (G4int id=0;id<ndaughters;++id) {
278 if (id>0) ed << " + "; // seperator, exc 273 if (id>0) ed << " + "; // seperator, except for first
279 ed << dc->GetDaughterName(id); 274 ed << dc->GetDaughterName(id);
280 } 275 }
281 ed << G4endl; 276 ed << G4endl;
282 } 277 }
283 G4Exception("G4Decay::DoIt", "DECAY003", 278 G4Exception("G4Decay::DoIt", "DECAY003", FatalException,ed);
284 } else { 279 } else {
285 // execute DecayIt() 280 // execute DecayIt()
286 #ifdef G4VERBOSE 281 #ifdef G4VERBOSE
287 G4int temp = decaychannel->GetVerboseLev 282 G4int temp = decaychannel->GetVerboseLevel();
288 if (GetVerboseLevel()>1) { 283 if (GetVerboseLevel()>1) {
289 G4cout << "G4Decay::DoIt : selected decay c 284 G4cout << "G4Decay::DoIt : selected decay channel addr:"
290 << decaychannel <<G4endl; 285 << decaychannel <<G4endl;
291 decaychannel->SetVerboseLevel(GetVerboseLeve 286 decaychannel->SetVerboseLevel(GetVerboseLevel());
292 } 287 }
293 #endif 288 #endif
294 products = decaychannel->DecayIt(aPartic 289 products = decaychannel->DecayIt(aParticle->GetMass());
295 #ifdef G4VERBOSE 290 #ifdef G4VERBOSE
296 if (GetVerboseLevel()>1) { 291 if (GetVerboseLevel()>1) {
297 decaychannel->SetVerboseLevel(temp); 292 decaychannel->SetVerboseLevel(temp);
298 } 293 }
299 #endif 294 #endif
300 #ifdef G4VERBOSE 295 #ifdef G4VERBOSE
301 if (GetVerboseLevel()>2) { 296 if (GetVerboseLevel()>2) {
302 if (! products->IsChecked() ) products->Dump 297 if (! products->IsChecked() ) products->DumpInfo();
303 } 298 }
304 #endif 299 #endif
305 } 300 }
306 } 301 }
307 302
308 // get parent particle information ......... 303 // get parent particle information ...................................
309 G4double ParentEnergy = aParticle->GetTot 304 G4double ParentEnergy = aParticle->GetTotalEnergy();
310 G4double ParentMass = aParticle->GetMas 305 G4double ParentMass = aParticle->GetMass();
311 if (ParentEnergy < ParentMass) { 306 if (ParentEnergy < ParentMass) {
312 G4ExceptionDescription ed; << 307 if (GetVerboseLevel()>0) {
313 ed << "Total Energy is less than its mass << 308 G4cout << "G4Decay::DoIt : Total Energy is less than its mass" << G4endl;
314 << "\n Particle: " << aParticle->GetDef << 309 G4cout << " Particle: " << aParticle->GetDefinition()->GetParticleName();
315 << "\n Energy:" << ParentEnergy/MeV << 310 G4cout << " Energy:" << ParentEnergy/MeV << "[MeV]";
316 << "\n Mass:" << ParentMass/MeV << << 311 G4cout << " Mass:" << ParentMass/MeV << "[MeV]";
>> 312 G4cout << G4endl;
>> 313 }
317 G4Exception( "G4Decay::DecayIt ", 314 G4Exception( "G4Decay::DecayIt ",
318 "DECAY102",JustWarning, ed); << 315 "DECAY102",JustWarning,
>> 316 "Total Energy is less than its mass");
319 ParentEnergy = ParentMass; 317 ParentEnergy = ParentMass;
320 } 318 }
321 319
322 G4ThreeVector ParentDirection(aParticle->Get 320 G4ThreeVector ParentDirection(aParticle->GetMomentumDirection());
323 321
324 //boost all decay products to laboratory fra 322 //boost all decay products to laboratory frame
325 G4double energyDeposit = 0.0; 323 G4double energyDeposit = 0.0;
326 G4double finalGlobalTime = aTrack.GetGlobalT 324 G4double finalGlobalTime = aTrack.GetGlobalTime();
327 G4double finalLocalTime = aTrack.GetLocalTim 325 G4double finalLocalTime = aTrack.GetLocalTime();
328 if (aTrack.GetTrackStatus() == fStopButAlive 326 if (aTrack.GetTrackStatus() == fStopButAlive ){
329 // AtRest case 327 // AtRest case
330 finalGlobalTime += fRemainderLifeTime; 328 finalGlobalTime += fRemainderLifeTime;
331 finalLocalTime += fRemainderLifeTime; 329 finalLocalTime += fRemainderLifeTime;
332 energyDeposit += aParticle->GetKineticEner 330 energyDeposit += aParticle->GetKineticEnergy();
333 if (isPreAssigned) products->Boost( Parent 331 if (isPreAssigned) products->Boost( ParentEnergy, ParentDirection);
334 } else { 332 } else {
335 // PostStep case 333 // PostStep case
336 if (!isExtDecayer) products->Boost( Parent 334 if (!isExtDecayer) products->Boost( ParentEnergy, ParentDirection);
337 } 335 }
338 // set polarization for daughter particles 336 // set polarization for daughter particles
339 DaughterPolarization(aTrack, products); 337 DaughterPolarization(aTrack, products);
340 338
341 339
342 //add products in fParticleChangeForDecay 340 //add products in fParticleChangeForDecay
343 G4int numberOfSecondaries = products->entrie 341 G4int numberOfSecondaries = products->entries();
344 fParticleChangeForDecay.SetNumberOfSecondari 342 fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries);
345 #ifdef G4VERBOSE 343 #ifdef G4VERBOSE
346 if (GetVerboseLevel()>1) { 344 if (GetVerboseLevel()>1) {
347 G4cout << "G4Decay::DoIt : Decay vertex : 345 G4cout << "G4Decay::DoIt : Decay vertex :";
348 G4cout << " Time: " << finalGlobalTime/ns 346 G4cout << " Time: " << finalGlobalTime/ns << "[ns]";
349 G4cout << " X:" << (aTrack.GetPosition()). 347 G4cout << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]";
350 G4cout << " Y:" << (aTrack.GetPosition()). 348 G4cout << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]";
351 G4cout << " Z:" << (aTrack.GetPosition()). 349 G4cout << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]";
352 G4cout << G4endl; 350 G4cout << G4endl;
353 G4cout << "G4Decay::DoIt : decay products 351 G4cout << "G4Decay::DoIt : decay products in Lab. Frame" << G4endl;
354 products->DumpInfo(); 352 products->DumpInfo();
355 } 353 }
356 #endif 354 #endif
357 G4int index; 355 G4int index;
358 G4ThreeVector currentPosition; 356 G4ThreeVector currentPosition;
359 const G4TouchableHandle thand = aTrack.GetTo 357 const G4TouchableHandle thand = aTrack.GetTouchableHandle();
360 for (index=0; index < numberOfSecondaries; i 358 for (index=0; index < numberOfSecondaries; index++){
361 // get current position of the track 359 // get current position of the track
362 currentPosition = aTrack.GetPosition(); 360 currentPosition = aTrack.GetPosition();
363 // create a new track object 361 // create a new track object
364 G4Track* secondary = new G4Track( products 362 G4Track* secondary = new G4Track( products->PopProducts(),
365 finalGlobalTime , 363 finalGlobalTime ,
366 currentPosition ); 364 currentPosition );
367 // switch on good for tracking flag 365 // switch on good for tracking flag
368 secondary->SetGoodForTrackingFlag(); 366 secondary->SetGoodForTrackingFlag();
369 secondary->SetTouchableHandle(thand); 367 secondary->SetTouchableHandle(thand);
370 // add the secondary track in the List 368 // add the secondary track in the List
371 fParticleChangeForDecay.AddSecondary(secon 369 fParticleChangeForDecay.AddSecondary(secondary);
372 } 370 }
373 delete products; 371 delete products;
374 372
375 // Kill the parent particle 373 // Kill the parent particle
376 fParticleChangeForDecay.ProposeTrackStatus( 374 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
377 fParticleChangeForDecay.ProposeLocalEnergyDe 375 fParticleChangeForDecay.ProposeLocalEnergyDeposit(energyDeposit);
378 fParticleChangeForDecay.ProposeLocalTime( fi 376 fParticleChangeForDecay.ProposeLocalTime( finalLocalTime );
379 377
380 // Clear NumberOfInteractionLengthLeft 378 // Clear NumberOfInteractionLengthLeft
381 ClearNumberOfInteractionLengthLeft(); 379 ClearNumberOfInteractionLengthLeft();
382 380
383 return &fParticleChangeForDecay ; 381 return &fParticleChangeForDecay ;
384 } 382 }
385 383
386 void G4Decay::DaughterPolarization(const G4Tra 384 void G4Decay::DaughterPolarization(const G4Track& , G4DecayProducts* )
387 { 385 {
388 // empty implementation 386 // empty implementation
389 } 387 }
390 388
391 389
392 390
393 void G4Decay::StartTracking(G4Track*) 391 void G4Decay::StartTracking(G4Track*)
394 { 392 {
395 currentInteractionLength = -1.0; 393 currentInteractionLength = -1.0;
396 ResetNumberOfInteractionLengthLeft(); 394 ResetNumberOfInteractionLengthLeft();
397 395
398 fRemainderLifeTime = -1.0; 396 fRemainderLifeTime = -1.0;
399 } 397 }
400 398
401 void G4Decay::EndTracking() 399 void G4Decay::EndTracking()
402 { 400 {
403 // Clear NumberOfInteractionLengthLeft 401 // Clear NumberOfInteractionLengthLeft
404 ClearNumberOfInteractionLengthLeft(); 402 ClearNumberOfInteractionLengthLeft();
405 403
406 currentInteractionLength = -1.0; 404 currentInteractionLength = -1.0;
407 } 405 }
408 406
409 407
410 G4double G4Decay::PostStepGetPhysicalInteracti 408 G4double G4Decay::PostStepGetPhysicalInteractionLength(
411 const G4Track& tr 409 const G4Track& track,
412 G4double previo 410 G4double previousStepSize,
413 G4ForceCondition* 411 G4ForceCondition* condition
414 ) 412 )
415 { 413 {
416 // condition is set to "Not Forced" 414 // condition is set to "Not Forced"
417 *condition = NotForced; 415 *condition = NotForced;
418 416
419 // pre-assigned Decay time 417 // pre-assigned Decay time
420 G4double pTime = track.GetDynamicParticle()- 418 G4double pTime = track.GetDynamicParticle()->GetPreAssignedDecayProperTime();
421 G4double aLife = track.GetDynamicParticle()- 419 G4double aLife = track.GetDynamicParticle()->GetDefinition()->GetPDGLifeTime();
422 420
423 if (pTime < 0.) { 421 if (pTime < 0.) {
424 // normal case 422 // normal case
425 if ( previousStepSize > 0.0){ 423 if ( previousStepSize > 0.0){
426 // subtract NumberOfInteractionLengthLef 424 // subtract NumberOfInteractionLengthLeft
427 SubtractNumberOfInteractionLengthLeft(pr 425 SubtractNumberOfInteractionLengthLeft(previousStepSize);
428 if(theNumberOfInteractionLengthLeft<0.){ 426 if(theNumberOfInteractionLengthLeft<0.){
429 theNumberOfInteractionLengthLeft=perMillion; 427 theNumberOfInteractionLengthLeft=perMillion;
430 } 428 }
431 fRemainderLifeTime = theNumberOfInteract 429 fRemainderLifeTime = theNumberOfInteractionLengthLeft*aLife;
432 } 430 }
433 // get mean free path 431 // get mean free path
434 currentInteractionLength = GetMeanFreePath 432 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
435 433
436 #ifdef G4VERBOSE 434 #ifdef G4VERBOSE
437 if ((currentInteractionLength <=0.0) || (v 435 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
438 G4cout << "G4Decay::PostStepGetPhysicalI 436 G4cout << "G4Decay::PostStepGetPhysicalInteractionLength " << G4endl;
439 track.GetDynamicParticle()->DumpInfo(); 437 track.GetDynamicParticle()->DumpInfo();
440 G4cout << " in Material " << track.GetM 438 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
441 G4cout << "MeanFreePath = " << currentIn 439 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
442 } 440 }
443 #endif 441 #endif
444 442
445 G4double value; 443 G4double value;
446 if (currentInteractionLength <DBL_MAX) { 444 if (currentInteractionLength <DBL_MAX) {
447 value = theNumberOfInteractionLengthLeft 445 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
448 //fRemainderLifeTime = theNumberOfIntera 446 //fRemainderLifeTime = theNumberOfInteractionLengthLeft*aLife;
449 } else { 447 } else {
450 value = DBL_MAX; 448 value = DBL_MAX;
451 } 449 }
452 450
453 return value; 451 return value;
454 452
455 } else { 453 } else {
456 //pre-assigned Decay time case 454 //pre-assigned Decay time case
457 // reminder proper time 455 // reminder proper time
458 fRemainderLifeTime = pTime - track.GetProp 456 fRemainderLifeTime = pTime - track.GetProperTime();
459 if (fRemainderLifeTime <= 0.0) fRemainderL << 457 if (fRemainderLifeTime <= 0.0) fRemainderLifeTime = DBL_MIN;
460 458
461 G4double rvalue=0.0; 459 G4double rvalue=0.0;
462 // use pre-assigned Decay time to determin 460 // use pre-assigned Decay time to determine PIL
463 if (aLife>0.0) { 461 if (aLife>0.0) {
464 // ordinary particle 462 // ordinary particle
465 rvalue = (fRemainderLifeTime/aLife)*GetM 463 rvalue = (fRemainderLifeTime/aLife)*GetMeanFreePath(track, previousStepSize, condition);
466 } else { 464 } else {
467 // shortlived particle 465 // shortlived particle
468 rvalue = c_light * fRemainderLifeTime; 466 rvalue = c_light * fRemainderLifeTime;
469 // by using normalized kinetic energy (= 467 // by using normalized kinetic energy (= Ekin/mass)
470 G4double aMass = track.GetDynamicParti 468 G4double aMass = track.GetDynamicParticle()->GetMass();
471 rvalue *= track.GetDynamicParticle()->Get 469 rvalue *= track.GetDynamicParticle()->GetTotalMomentum()/aMass;
472 } 470 }
473 return rvalue; 471 return rvalue;
474 } 472 }
475 } 473 }
476 474
477 G4double G4Decay::AtRestGetPhysicalInteraction 475 G4double G4Decay::AtRestGetPhysicalInteractionLength(
478 const G4Track& tr 476 const G4Track& track,
479 G4ForceCondition* 477 G4ForceCondition* condition
480 ) 478 )
481 { 479 {
482 // condition is set to "Not Forced" 480 // condition is set to "Not Forced"
483 *condition = NotForced; 481 *condition = NotForced;
484 482
485 G4double pTime = track.GetDynamicParticle()- 483 G4double pTime = track.GetDynamicParticle()->GetPreAssignedDecayProperTime();
486 if (pTime >= 0.) { 484 if (pTime >= 0.) {
487 fRemainderLifeTime = pTime - track.GetProp 485 fRemainderLifeTime = pTime - track.GetProperTime();
488 if (fRemainderLifeTime <= 0.0) fRemainderL 486 if (fRemainderLifeTime <= 0.0) fRemainderLifeTime = DBL_MIN;
489 } else { 487 } else {
490 fRemainderLifeTime = 488 fRemainderLifeTime =
491 theNumberOfInteractionLengthLeft * GetMe 489 theNumberOfInteractionLengthLeft * GetMeanLifeTime(track, condition);
492 } 490 }
493 return fRemainderLifeTime; 491 return fRemainderLifeTime;
494 } 492 }
495 493
496 494
497 void G4Decay::SetExtDecayer(G4VExtDecayer* val 495 void G4Decay::SetExtDecayer(G4VExtDecayer* val)
498 { 496 {
499 pExtDecayer = val; 497 pExtDecayer = val;
500 498
501 // set Process Sub Type 499 // set Process Sub Type
502 if ( pExtDecayer !=0 ) { 500 if ( pExtDecayer !=0 ) {
503 SetProcessSubType(static_cast<int>(DECAY_E 501 SetProcessSubType(static_cast<int>(DECAY_External));
504 } 502 }
505 } 503 }
506 504
507 G4VParticleChange* G4Decay::PostStepDoIt( 505 G4VParticleChange* G4Decay::PostStepDoIt(
508 const G4Track& aTrack, 506 const G4Track& aTrack,
509 const G4Step& aStep 507 const G4Step& aStep
510 ) 508 )
511 { 509 {
512 if ( (aTrack.GetTrackStatus() == fStopButAli 510 if ( (aTrack.GetTrackStatus() == fStopButAlive ) ||
513 (aTrack.GetTrackStatus() == fStopAndKil 511 (aTrack.GetTrackStatus() == fStopAndKill ) ){
514 fParticleChangeForDecay.Initialize(aTrack) 512 fParticleChangeForDecay.Initialize(aTrack);
515 return &fParticleChangeForDecay; 513 return &fParticleChangeForDecay;
516 } else { 514 } else {
517 return DecayIt(aTrack, aStep); 515 return DecayIt(aTrack, aStep);
518 } 516 }
519 } 517 }
520 518
521 void G4Decay::ProcessDescription(std::ostream& 519 void G4Decay::ProcessDescription(std::ostream& outFile) const
522 { 520 {
523 outFile << GetProcessName() << ": Decay of p 521 outFile << GetProcessName() << ": Decay of particles. \n"
524 << "kinematics of daughters are dertermine 522 << "kinematics of daughters are dertermined by DecayChannels "
525 << " or by PreAssignedDecayProducts\ 523 << " or by PreAssignedDecayProducts\n";
526 } 524 }
527 525