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26 // $Id: G4NuMuNucleusNcModel.cc 91806 2015-08- 26 // $Id: G4NuMuNucleusNcModel.cc 91806 2015-08-06 12:20:45Z gcosmo $
27 // 27 //
28 // Geant4 Header : G4NuMuNucleusNcModel 28 // Geant4 Header : G4NuMuNucleusNcModel
29 // 29 //
30 // Author : V.Grichine 12.2.19 30 // Author : V.Grichine 12.2.19
31 // 31 //
32 32
33 #include "G4NuMuNucleusNcModel.hh" 33 #include "G4NuMuNucleusNcModel.hh"
34 #include "G4NeutrinoNucleusModel.hh" 34 #include "G4NeutrinoNucleusModel.hh"
35 35
36 // #include "G4NuMuResQX.hh" 36 // #include "G4NuMuResQX.hh"
37 37
38 #include "G4SystemOfUnits.hh" 38 #include "G4SystemOfUnits.hh"
39 #include "G4ParticleTable.hh" 39 #include "G4ParticleTable.hh"
40 #include "G4ParticleDefinition.hh" 40 #include "G4ParticleDefinition.hh"
41 #include "G4IonTable.hh" 41 #include "G4IonTable.hh"
42 #include "Randomize.hh" 42 #include "Randomize.hh"
43 #include "G4RandomDirection.hh" 43 #include "G4RandomDirection.hh"
44 44
45 // #include "G4Integrator.hh" 45 // #include "G4Integrator.hh"
46 #include "G4DataVector.hh" 46 #include "G4DataVector.hh"
47 #include "G4PhysicsTable.hh" 47 #include "G4PhysicsTable.hh"
48 #include "G4KineticTrack.hh" 48 #include "G4KineticTrack.hh"
49 #include "G4DecayKineticTracks.hh" 49 #include "G4DecayKineticTracks.hh"
50 #include "G4KineticTrackVector.hh" 50 #include "G4KineticTrackVector.hh"
51 #include "G4Fragment.hh" 51 #include "G4Fragment.hh"
52 #include "G4ReactionProductVector.hh" 52 #include "G4ReactionProductVector.hh"
53 53
54 54
55 #include "G4NeutrinoMu.hh" 55 #include "G4NeutrinoMu.hh"
56 #include "G4AntiNeutrinoMu.hh" 56 #include "G4AntiNeutrinoMu.hh"
57 #include "G4Nucleus.hh" 57 #include "G4Nucleus.hh"
58 #include "G4LorentzVector.hh" 58 #include "G4LorentzVector.hh"
59 59
60 using namespace std; 60 using namespace std;
61 using namespace CLHEP; 61 using namespace CLHEP;
62 62
63 #ifdef G4MULTITHREADED 63 #ifdef G4MULTITHREADED
64 G4Mutex G4NuMuNucleusNcModel::numuNucleusM 64 G4Mutex G4NuMuNucleusNcModel::numuNucleusModel = G4MUTEX_INITIALIZER;
65 #endif 65 #endif
66 66
67 67
68 G4NuMuNucleusNcModel::G4NuMuNucleusNcModel(con 68 G4NuMuNucleusNcModel::G4NuMuNucleusNcModel(const G4String& name)
69 : G4NeutrinoNucleusModel(name) 69 : G4NeutrinoNucleusModel(name)
70 { 70 {
71 SetMinEnergy( 0.0*GeV ); 71 SetMinEnergy( 0.0*GeV );
72 SetMaxEnergy( 100.*TeV ); 72 SetMaxEnergy( 100.*TeV );
73 SetMinEnergy(1.e-6*eV); 73 SetMinEnergy(1.e-6*eV);
74 74
75 theNuMu = G4NeutrinoMu::NeutrinoMu(); 75 theNuMu = G4NeutrinoMu::NeutrinoMu();
76 theANuMu = G4AntiNeutrinoMu::AntiNeutrinoMu 76 theANuMu = G4AntiNeutrinoMu::AntiNeutrinoMu();
77 77
78 fMnumu = 0.; 78 fMnumu = 0.;
79 fData = fMaster = false; 79 fData = fMaster = false;
80 InitialiseModel(); 80 InitialiseModel();
81 81
82 } 82 }
83 83
84 84
85 G4NuMuNucleusNcModel::~G4NuMuNucleusNcModel() 85 G4NuMuNucleusNcModel::~G4NuMuNucleusNcModel()
86 {} 86 {}
87 87
88 88
89 void G4NuMuNucleusNcModel::ModelDescription(st 89 void G4NuMuNucleusNcModel::ModelDescription(std::ostream& outFile) const
90 { 90 {
91 91
92 outFile << "G4NuMuNucleusNcModel is a neut 92 outFile << "G4NuMuNucleusNcModel is a neutrino-nucleus (neutral current) scattering\n"
93 << "model which uses the standard 93 << "model which uses the standard model \n"
94 << "transfer parameterization. Th 94 << "transfer parameterization. The model is fully relativistic\n";
95 95
96 } 96 }
97 97
98 ////////////////////////////////////////////// 98 /////////////////////////////////////////////////////////
99 // 99 //
100 // Read data from G4PARTICLEXSDATA (locally PA 100 // Read data from G4PARTICLEXSDATA (locally PARTICLEXSDATA)
101 101
102 void G4NuMuNucleusNcModel::InitialiseModel() 102 void G4NuMuNucleusNcModel::InitialiseModel()
103 { 103 {
104 G4String pName = "nu_mu"; 104 G4String pName = "nu_mu";
105 105
106 G4int nSize(0), i(0), j(0), k(0); 106 G4int nSize(0), i(0), j(0), k(0);
107 107
108 if(!fData) 108 if(!fData)
109 { 109 {
110 #ifdef G4MULTITHREADED 110 #ifdef G4MULTITHREADED
111 G4MUTEXLOCK(&numuNucleusModel); 111 G4MUTEXLOCK(&numuNucleusModel);
112 if(!fData) 112 if(!fData)
113 { 113 {
114 #endif 114 #endif
115 fMaster = true; 115 fMaster = true;
116 #ifdef G4MULTITHREADED 116 #ifdef G4MULTITHREADED
117 } 117 }
118 G4MUTEXUNLOCK(&numuNucleusModel); 118 G4MUTEXUNLOCK(&numuNucleusModel);
119 #endif 119 #endif
120 } 120 }
121 121
122 if(fMaster) 122 if(fMaster)
123 { 123 {
124 const char* path = G4FindDataDir("G4PARTIC 124 const char* path = G4FindDataDir("G4PARTICLEXSDATA");
125 std::ostringstream ost1, ost2, ost3, ost4; 125 std::ostringstream ost1, ost2, ost3, ost4;
126 ost1 << path << "/" << "neutrino" << "/" < 126 ost1 << path << "/" << "neutrino" << "/" << pName << "/xarraynckr";
127 127
128 std::ifstream filein1( ost1.str().c_str() 128 std::ifstream filein1( ost1.str().c_str() );
129 129
130 // filein.open("$PARTICLEXSDATA/"); 130 // filein.open("$PARTICLEXSDATA/");
131 131
132 filein1>>nSize; 132 filein1>>nSize;
133 133
134 for( k = 0; k < fNbin; ++k ) 134 for( k = 0; k < fNbin; ++k )
135 { 135 {
136 for( i = 0; i <= fNbin; ++i ) 136 for( i = 0; i <= fNbin; ++i )
137 { 137 {
138 filein1 >> fNuMuXarrayKR[k][i]; 138 filein1 >> fNuMuXarrayKR[k][i];
139 // G4cout<< fNuMuXarrayKR[k][i] << " 139 // G4cout<< fNuMuXarrayKR[k][i] << " ";
140 } 140 }
141 } 141 }
142 // G4cout<<G4endl<<G4endl; 142 // G4cout<<G4endl<<G4endl;
143 143
144 ost2 << path << "/" << "neutrino" << "/" < 144 ost2 << path << "/" << "neutrino" << "/" << pName << "/xdistrnckr";
145 std::ifstream filein2( ost2.str().c_str() 145 std::ifstream filein2( ost2.str().c_str() );
146 146
147 filein2>>nSize; 147 filein2>>nSize;
148 148
149 for( k = 0; k < fNbin; ++k ) 149 for( k = 0; k < fNbin; ++k )
150 { 150 {
151 for( i = 0; i < fNbin; ++i ) 151 for( i = 0; i < fNbin; ++i )
152 { 152 {
153 filein2 >> fNuMuXdistrKR[k][i]; 153 filein2 >> fNuMuXdistrKR[k][i];
154 // G4cout<< fNuMuXdistrKR[k][i] << " 154 // G4cout<< fNuMuXdistrKR[k][i] << " ";
155 } 155 }
156 } 156 }
157 // G4cout<<G4endl<<G4endl; 157 // G4cout<<G4endl<<G4endl;
158 158
159 ost3 << path << "/" << "neutrino" << "/" < 159 ost3 << path << "/" << "neutrino" << "/" << pName << "/q2arraynckr";
160 std::ifstream filein3( ost3.str().c_str() 160 std::ifstream filein3( ost3.str().c_str() );
161 161
162 filein3>>nSize; 162 filein3>>nSize;
163 163
164 for( k = 0; k < fNbin; ++k ) 164 for( k = 0; k < fNbin; ++k )
165 { 165 {
166 for( i = 0; i <= fNbin; ++i ) 166 for( i = 0; i <= fNbin; ++i )
167 { 167 {
168 for( j = 0; j <= fNbin; ++j ) 168 for( j = 0; j <= fNbin; ++j )
169 { 169 {
170 filein3 >> fNuMuQarrayKR[k][i][j]; 170 filein3 >> fNuMuQarrayKR[k][i][j];
171 // G4cout<< fNuMuQarrayKR[k][i][j] < 171 // G4cout<< fNuMuQarrayKR[k][i][j] << " ";
172 } 172 }
173 } 173 }
174 } 174 }
175 // G4cout<<G4endl<<G4endl; 175 // G4cout<<G4endl<<G4endl;
176 176
177 ost4 << path << "/" << "neutrino" << "/" < 177 ost4 << path << "/" << "neutrino" << "/" << pName << "/q2distrnckr";
178 std::ifstream filein4( ost4.str().c_str() 178 std::ifstream filein4( ost4.str().c_str() );
179 179
180 filein4>>nSize; 180 filein4>>nSize;
181 181
182 for( k = 0; k < fNbin; ++k ) 182 for( k = 0; k < fNbin; ++k )
183 { 183 {
184 for( i = 0; i <= fNbin; ++i ) 184 for( i = 0; i <= fNbin; ++i )
185 { 185 {
186 for( j = 0; j < fNbin; ++j ) 186 for( j = 0; j < fNbin; ++j )
187 { 187 {
188 filein4 >> fNuMuQdistrKR[k][i][j]; 188 filein4 >> fNuMuQdistrKR[k][i][j];
189 // G4cout<< fNuMuQdistrKR[k][i][j] < 189 // G4cout<< fNuMuQdistrKR[k][i][j] << " ";
190 } 190 }
191 } 191 }
192 } 192 }
193 fData = true; 193 fData = true;
194 } 194 }
195 } 195 }
196 196
197 ////////////////////////////////////////////// 197 /////////////////////////////////////////////////////////
198 198
199 G4bool G4NuMuNucleusNcModel::IsApplicable(cons 199 G4bool G4NuMuNucleusNcModel::IsApplicable(const G4HadProjectile & aPart,
200 G4Nucleus & ) 200 G4Nucleus & )
201 { 201 {
202 G4bool result = false; 202 G4bool result = false;
203 G4String pName = aPart.GetDefinition()->GetP 203 G4String pName = aPart.GetDefinition()->GetParticleName();
204 G4double energy = aPart.GetTotalEnergy(); 204 G4double energy = aPart.GetTotalEnergy();
205 205
206 if( pName == "nu_mu" // || pName == "anti_n 206 if( pName == "nu_mu" // || pName == "anti_nu_mu" )
207 && 207 &&
208 energy > fMinNuEnergy 208 energy > fMinNuEnergy )
209 { 209 {
210 result = true; 210 result = true;
211 } 211 }
212 212
213 return result; 213 return result;
214 } 214 }
215 215
216 /////////////////////////////////////////// Cl 216 /////////////////////////////////////////// ClusterDecay ////////////////////////////////////////////////////////////
217 // 217 //
218 // 218 //
219 219
220 G4HadFinalState* G4NuMuNucleusNcModel::ApplyYo 220 G4HadFinalState* G4NuMuNucleusNcModel::ApplyYourself(
221 const G4HadProjectile& aTrack, G4Nucleus& 221 const G4HadProjectile& aTrack, G4Nucleus& targetNucleus)
222 { 222 {
223 theParticleChange.Clear(); 223 theParticleChange.Clear();
224 fProton = f2p2h = fBreak = false; 224 fProton = f2p2h = fBreak = false;
225 const G4HadProjectile* aParticle = &aTrack; 225 const G4HadProjectile* aParticle = &aTrack;
226 G4double energy = aParticle->GetTotalEnergy( 226 G4double energy = aParticle->GetTotalEnergy();
227 227
228 G4String pName = aParticle->GetDefinition() 228 G4String pName = aParticle->GetDefinition()->GetParticleName();
229 229
230 if( energy < fMinNuEnergy ) 230 if( energy < fMinNuEnergy )
231 { 231 {
232 theParticleChange.SetEnergyChange(energy); 232 theParticleChange.SetEnergyChange(energy);
233 theParticleChange.SetMomentumChange(aTrack 233 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
234 return &theParticleChange; 234 return &theParticleChange;
235 } 235 }
236 SampleLVkr( aTrack, targetNucleus); 236 SampleLVkr( aTrack, targetNucleus);
237 237
238 if( fBreak == true || fEmu < fMnumu ) // ~5* 238 if( fBreak == true || fEmu < fMnumu ) // ~5*10^-6
239 { 239 {
240 // G4cout<<"ni, "; 240 // G4cout<<"ni, ";
241 theParticleChange.SetEnergyChange(energy); 241 theParticleChange.SetEnergyChange(energy);
242 theParticleChange.SetMomentumChange(aTrack 242 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
243 return &theParticleChange; 243 return &theParticleChange;
244 } 244 }
245 245
246 // LVs of initial state 246 // LVs of initial state
247 247
248 G4LorentzVector lvp1 = aParticle->Get4Moment 248 G4LorentzVector lvp1 = aParticle->Get4Momentum();
249 G4LorentzVector lvt1( 0., 0., 0., fM1 ); 249 G4LorentzVector lvt1( 0., 0., 0., fM1 );
250 G4double mPip = G4ParticleTable::GetParticle 250 G4double mPip = G4ParticleTable::GetParticleTable()->FindParticle(211)->GetPDGMass();
251 251
252 // 1-pi by fQtransfer && nu-energy 252 // 1-pi by fQtransfer && nu-energy
253 G4LorentzVector lvpip1( 0., 0., 0., mPip ); 253 G4LorentzVector lvpip1( 0., 0., 0., mPip );
254 G4LorentzVector lvsum, lv2, lvX; 254 G4LorentzVector lvsum, lv2, lvX;
255 G4ThreeVector eP; 255 G4ThreeVector eP;
256 G4double cost(1.), sint(0.), phi(0.), muMom( 256 G4double cost(1.), sint(0.), phi(0.), muMom(0.), massX2(0.);
257 G4DynamicParticle* aLept = nullptr; // lepto 257 G4DynamicParticle* aLept = nullptr; // lepton lv
258 258
259 G4int Z = targetNucleus.GetZ_asInt(); 259 G4int Z = targetNucleus.GetZ_asInt();
260 G4int A = targetNucleus.GetA_asInt(); 260 G4int A = targetNucleus.GetA_asInt();
261 G4double mTarg = targetNucleus.AtomicMass(A 261 G4double mTarg = targetNucleus.AtomicMass(A,Z);
262 G4int pdgP(0), qB(0); 262 G4int pdgP(0), qB(0);
263 // G4double mSum = G4ParticleTable::GetParti 263 // G4double mSum = G4ParticleTable::GetParticleTable()->FindParticle(2212)->GetPDGMass() + mPip;
264 264
265 G4int iPi = GetOnePionIndex(energy); 265 G4int iPi = GetOnePionIndex(energy);
266 G4double p1pi = GetNuMuOnePionProb( iPi, ene 266 G4double p1pi = GetNuMuOnePionProb( iPi, energy);
267 267
268 if( p1pi > G4UniformRand() && fCosTheta > 0. 268 if( p1pi > G4UniformRand() && fCosTheta > 0.9 ) // && fQtransfer < 0.95*GeV ) // mu- & coherent pion + nucleus
269 { 269 {
270 // lvsum = lvp1 + lvpip1; 270 // lvsum = lvp1 + lvpip1;
271 lvsum = lvp1 + lvt1; 271 lvsum = lvp1 + lvt1;
272 // cost = fCosThetaPi; 272 // cost = fCosThetaPi;
273 cost = fCosTheta; 273 cost = fCosTheta;
274 sint = std::sqrt( (1.0 - cost)*(1.0 + cost 274 sint = std::sqrt( (1.0 - cost)*(1.0 + cost) );
275 phi = G4UniformRand()*CLHEP::twopi; 275 phi = G4UniformRand()*CLHEP::twopi;
276 eP = G4ThreeVector( sint*std::cos(phi), 276 eP = G4ThreeVector( sint*std::cos(phi), sint*std::sin(phi), cost );
277 277
278 // muMom = sqrt(fEmuPi*fEmuPi-fMnumu*fMnum 278 // muMom = sqrt(fEmuPi*fEmuPi-fMnumu*fMnumu);
279 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu); 279 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu);
280 280
281 eP *= muMom; 281 eP *= muMom;
282 282
283 // lv2 = G4LorentzVector( eP, fEmuPi ); 283 // lv2 = G4LorentzVector( eP, fEmuPi );
284 lv2 = G4LorentzVector( eP, fEmu ); 284 lv2 = G4LorentzVector( eP, fEmu );
285 lv2 = fLVl; 285 lv2 = fLVl;
286 286
287 lvX = lvsum - lv2; 287 lvX = lvsum - lv2;
288 lvX = fLVh; 288 lvX = fLVh;
289 massX2 = lvX.m2(); 289 massX2 = lvX.m2();
290 G4double massX = lvX.m(); 290 G4double massX = lvX.m();
291 G4double massR = fLVt.m(); 291 G4double massR = fLVt.m();
292 292
293 // if ( massX2 <= 0. ) // vmg: very rarely 293 // if ( massX2 <= 0. ) // vmg: very rarely ~ (1-4)e-6 due to big Q2/x, to be improved
294 if ( massX2 <= fM1*fM1 ) // 9-3-20 vmg: ve 294 if ( massX2 <= fM1*fM1 ) // 9-3-20 vmg: very rarely ~ (1-4)e-6 due to big Q2/x, to be improved
295 if ( lvX.e() <= fM1 ) // 9-3-20 vmg: ver 295 if ( lvX.e() <= fM1 ) // 9-3-20 vmg: very rarely ~ (1-4)e-6 due to big Q2/x, to be improved
296 { 296 {
297 theParticleChange.SetEnergyChange(energy 297 theParticleChange.SetEnergyChange(energy);
298 theParticleChange.SetMomentumChange(aTra 298 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
299 return &theParticleChange; 299 return &theParticleChange;
300 } 300 }
301 fW2 = massX2; 301 fW2 = massX2;
302 302
303 if( pName == "nu_mu" ) aLept = ne 303 if( pName == "nu_mu" ) aLept = new G4DynamicParticle( theNuMu, lv2 );
304 else if( pName == "anti_nu_mu") aLept = ne 304 else if( pName == "anti_nu_mu") aLept = new G4DynamicParticle( theANuMu, lv2 );
305 else 305 else
306 { 306 {
307 theParticleChange.SetEnergyChange(energy 307 theParticleChange.SetEnergyChange(energy);
308 theParticleChange.SetMomentumChange(aTra 308 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
309 return &theParticleChange; 309 return &theParticleChange;
310 } 310 }
311 311
312 pdgP = 111; 312 pdgP = 111;
313 313
314 G4double eCut; // = fMpi + 0.5*(fMpi*fMpi 314 G4double eCut; // = fMpi + 0.5*(fMpi*fMpi - massX2)/mTarg; // massX -> fMpi
315 315
316 if( A > 1 ) 316 if( A > 1 )
317 { 317 {
318 eCut = (fMpi + mTarg)*(fMpi + mTarg) - ( 318 eCut = (fMpi + mTarg)*(fMpi + mTarg) - (massX + massR)*(massX + massR);
319 eCut /= 2.*massR; 319 eCut /= 2.*massR;
320 eCut += massX; 320 eCut += massX;
321 } 321 }
322 else eCut = fM1 + fMpi; 322 else eCut = fM1 + fMpi;
323 323
324 if ( lvX.e() > eCut ) // && sqrt( GetW2() 324 if ( lvX.e() > eCut ) // && sqrt( GetW2() ) < 1.4*GeV ) //
325 { 325 {
326 CoherentPion( lvX, pdgP, targetNucleus); 326 CoherentPion( lvX, pdgP, targetNucleus);
327 } 327 }
328 else 328 else
329 { 329 {
330 theParticleChange.SetEnergyChange(energy 330 theParticleChange.SetEnergyChange(energy);
331 theParticleChange.SetMomentumChange(aTra 331 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
332 return &theParticleChange; 332 return &theParticleChange;
333 } 333 }
334 theParticleChange.AddSecondary( aLept, fSe 334 theParticleChange.AddSecondary( aLept, fSecID );
335 335
336 return &theParticleChange; 336 return &theParticleChange;
337 } 337 }
338 else // lepton part in lab 338 else // lepton part in lab
339 { 339 {
340 lvsum = lvp1 + lvt1; 340 lvsum = lvp1 + lvt1;
341 cost = fCosTheta; 341 cost = fCosTheta;
342 sint = std::sqrt( (1.0 - cost)*(1.0 + cost 342 sint = std::sqrt( (1.0 - cost)*(1.0 + cost) );
343 phi = G4UniformRand()*CLHEP::twopi; 343 phi = G4UniformRand()*CLHEP::twopi;
344 eP = G4ThreeVector( sint*std::cos(phi), 344 eP = G4ThreeVector( sint*std::cos(phi), sint*std::sin(phi), cost );
345 345
346 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu); 346 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu);
347 347
348 eP *= muMom; 348 eP *= muMom;
349 349
350 lv2 = G4LorentzVector( eP, fEmu ); 350 lv2 = G4LorentzVector( eP, fEmu );
351 351
352 lvX = lvsum - lv2; 352 lvX = lvsum - lv2;
353 353
354 massX2 = lvX.m2(); 354 massX2 = lvX.m2();
355 355
356 if ( massX2 <= 0. ) // vmg: very rarely ~ 356 if ( massX2 <= 0. ) // vmg: very rarely ~ (1-4)e-6 due to big Q2/x, to be improved
357 { 357 {
358 theParticleChange.SetEnergyChange(energy 358 theParticleChange.SetEnergyChange(energy);
359 theParticleChange.SetMomentumChange(aTra 359 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
360 return &theParticleChange; 360 return &theParticleChange;
361 } 361 }
362 fW2 = massX2; 362 fW2 = massX2;
363 363
364 aLept = new G4DynamicParticle( theNuMu, lv 364 aLept = new G4DynamicParticle( theNuMu, lv2 );
365 365
366 theParticleChange.AddSecondary( aLept, fSe 366 theParticleChange.AddSecondary( aLept, fSecID );
367 } 367 }
368 368
369 // hadron part 369 // hadron part
370 370
371 fRecoil = nullptr; 371 fRecoil = nullptr;
372 fCascade = false; 372 fCascade = false;
373 fString = false; 373 fString = false;
374 374
375 if( A == 1 ) 375 if( A == 1 )
376 { 376 {
377 qB = 1; 377 qB = 1;
378 378
379 // if( G4UniformRand() > 0.1 ) // > 0.999 379 // if( G4UniformRand() > 0.1 ) // > 0.9999 ) // > 0.0001 ) //
380 { 380 {
381 ClusterDecay( lvX, qB ); 381 ClusterDecay( lvX, qB );
382 } 382 }
383 return &theParticleChange; 383 return &theParticleChange;
384 } 384 }
385 G4Nucleus recoil; 385 G4Nucleus recoil;
386 G4double rM(0.), ratio = G4double(Z)/G4doubl 386 G4double rM(0.), ratio = G4double(Z)/G4double(A);
387 387
388 if( ratio > G4UniformRand() ) // proton is e 388 if( ratio > G4UniformRand() ) // proton is excited
389 { 389 {
390 fProton = true; 390 fProton = true;
391 recoil = G4Nucleus(A-1,Z-1); 391 recoil = G4Nucleus(A-1,Z-1);
392 fRecoil = &recoil; 392 fRecoil = &recoil;
393 rM = recoil.AtomicMass(A-1,Z-1); 393 rM = recoil.AtomicMass(A-1,Z-1);
394 394
395 fMt = G4ParticleTable::GetParticleTable()- 395 fMt = G4ParticleTable::GetParticleTable()->FindParticle(2212)->GetPDGMass()
396 + G4ParticleTable::GetParticleTable( 396 + G4ParticleTable::GetParticleTable()->FindParticle(111)->GetPDGMass();
397 } 397 }
398 else // excited neutron 398 else // excited neutron
399 { 399 {
400 fProton = false; 400 fProton = false;
401 recoil = G4Nucleus(A-1,Z); 401 recoil = G4Nucleus(A-1,Z);
402 fRecoil = &recoil; 402 fRecoil = &recoil;
403 rM = recoil.AtomicMass(A-1,Z); 403 rM = recoil.AtomicMass(A-1,Z);
404 404
405 fMt = G4ParticleTable::GetParticleTable()- 405 fMt = G4ParticleTable::GetParticleTable()->FindParticle(2112)->GetPDGMass()
406 + G4ParticleTable::GetParticleTable( 406 + G4ParticleTable::GetParticleTable()->FindParticle(111)->GetPDGMass();
407 } 407 }
408 // G4int index = GetEnergyIndex(energy 408 // G4int index = GetEnergyIndex(energy);
409 G4int nepdg = aParticle->GetDefinition()->Ge 409 G4int nepdg = aParticle->GetDefinition()->GetPDGEncoding();
410 410
411 G4double qeTotRat; // = GetNuMuQeTotRat(ind 411 G4double qeTotRat; // = GetNuMuQeTotRat(index, energy);
412 qeTotRat = CalculateQEratioA( Z, A, energy, 412 qeTotRat = CalculateQEratioA( Z, A, energy, nepdg);
413 413
414 G4ThreeVector dX = (lvX.vect()).unit(); 414 G4ThreeVector dX = (lvX.vect()).unit();
415 G4double eX = lvX.e(); // excited nucleon 415 G4double eX = lvX.e(); // excited nucleon
416 G4double mX = sqrt(massX2); 416 G4double mX = sqrt(massX2);
417 417
418 if( qeTotRat > G4UniformRand() || mX <= fMt 418 if( qeTotRat > G4UniformRand() || mX <= fMt ) // || eX <= 1232.*MeV) // QE
419 { 419 {
420 fString = false; 420 fString = false;
421 421
422 if( fProton ) 422 if( fProton )
423 { 423 {
424 fPDGencoding = 2212; 424 fPDGencoding = 2212;
425 fMr = proton_mass_c2; 425 fMr = proton_mass_c2;
426 recoil = G4Nucleus(A-1,Z-1); 426 recoil = G4Nucleus(A-1,Z-1);
427 fRecoil = &recoil; 427 fRecoil = &recoil;
428 rM = recoil.AtomicMass(A-1,Z-1); 428 rM = recoil.AtomicMass(A-1,Z-1);
429 } 429 }
430 else 430 else
431 { 431 {
432 fPDGencoding = 2112; 432 fPDGencoding = 2112;
433 fMr = G4ParticleTable::GetParticleTabl 433 fMr = G4ParticleTable::GetParticleTable()->
434 FindParticle(fPDGencoding)->GetPDGMass(); // 434 FindParticle(fPDGencoding)->GetPDGMass(); // 939.5654133*MeV;
435 recoil = G4Nucleus(A-1,Z); 435 recoil = G4Nucleus(A-1,Z);
436 fRecoil = &recoil; 436 fRecoil = &recoil;
437 rM = recoil.AtomicMass(A-1,Z); 437 rM = recoil.AtomicMass(A-1,Z);
438 } 438 }
439 G4double eTh = fMr+0.5*(fMr*fMr-mX*mX)/rM; 439 G4double eTh = fMr+0.5*(fMr*fMr-mX*mX)/rM;
440 440
441 if(eX <= eTh) // vmg, very rarely out of k 441 if(eX <= eTh) // vmg, very rarely out of kinematics
442 { 442 {
443 theParticleChange.SetEnergyChange(energy 443 theParticleChange.SetEnergyChange(energy);
444 theParticleChange.SetMomentumChange(aTra 444 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit());
445 return &theParticleChange; 445 return &theParticleChange;
446 } 446 }
447 FinalBarion( lvX, 0, fPDGencoding ); // p( 447 FinalBarion( lvX, 0, fPDGencoding ); // p(n)+deexcited recoil
448 } 448 }
449 else // if ( eX < 9500000.*GeV ) // < 25.*Ge 449 else // if ( eX < 9500000.*GeV ) // < 25.*GeV) // < 95.*GeV ) // < 2.5*GeV ) //cluster decay
450 { 450 {
451 if ( fProton && pName == "nu_mu" ) 451 if ( fProton && pName == "nu_mu" ) qB = 1;
452 else if( !fProton && pName == "nu_mu" ) 452 else if( !fProton && pName == "nu_mu" ) qB = 0;
453 453
454 ClusterDecay( lvX, qB ); 454 ClusterDecay( lvX, qB );
455 } 455 }
456 return &theParticleChange; 456 return &theParticleChange;
457 } 457 }
458 458
459 459
460 ////////////////////////////////////////////// 460 /////////////////////////////////////////////////////////////////////
461 ////////////////////////////////////////////// 461 ////////////////////////////////////////////////////////////////////
462 ////////////////////////////////////////////// 462 ///////////////////////////////////////////////////////////////////
463 463
464 ////////////////////////////////////////////// 464 /////////////////////////////////////////////////
465 // 465 //
466 // sample x, then Q2 466 // sample x, then Q2
467 467
468 void G4NuMuNucleusNcModel::SampleLVkr(const G4 468 void G4NuMuNucleusNcModel::SampleLVkr(const G4HadProjectile & aTrack, G4Nucleus& targetNucleus)
469 { 469 {
470 fBreak = false; 470 fBreak = false;
471 G4int A = targetNucleus.GetA_asInt(), iTer(0 471 G4int A = targetNucleus.GetA_asInt(), iTer(0), iTerMax(100);
472 G4int Z = targetNucleus.GetZ_asInt(); 472 G4int Z = targetNucleus.GetZ_asInt();
473 G4double e3(0.), pMu2(0.), pX2(0.), nMom(0.) 473 G4double e3(0.), pMu2(0.), pX2(0.), nMom(0.), rM(0.), hM(0.), tM = targetNucleus.AtomicMass(A,Z);
474 G4double cost(1.), sint(0.), phi(0.), muMom( 474 G4double cost(1.), sint(0.), phi(0.), muMom(0.);
475 G4ThreeVector eP, bst; 475 G4ThreeVector eP, bst;
476 const G4HadProjectile* aParticle = &aTrack; 476 const G4HadProjectile* aParticle = &aTrack;
477 G4LorentzVector lvp1 = aParticle->Get4Moment 477 G4LorentzVector lvp1 = aParticle->Get4Momentum();
478 nMom = NucleonMomentum( targetNucleus ); 478 nMom = NucleonMomentum( targetNucleus );
479 479
480 if( A == 1 || nMom == 0. ) // hydrogen, no F 480 if( A == 1 || nMom == 0. ) // hydrogen, no Fermi motion ???
481 { 481 {
482 fNuEnergy = aParticle->GetTotalEnergy(); 482 fNuEnergy = aParticle->GetTotalEnergy();
483 iTer = 0; 483 iTer = 0;
484 484
485 do 485 do
486 { 486 {
487 fXsample = SampleXkr(fNuEnergy); 487 fXsample = SampleXkr(fNuEnergy);
488 fQtransfer = SampleQkr(fNuEnergy, fXsamp 488 fQtransfer = SampleQkr(fNuEnergy, fXsample);
489 fQ2 = fQtransfer*fQtransfer; 489 fQ2 = fQtransfer*fQtransfer;
490 490
491 if( fXsample > 0. ) 491 if( fXsample > 0. )
492 { 492 {
493 fW2 = fM1*fM1 - fQ2 + fQ2/fXsample; // 493 fW2 = fM1*fM1 - fQ2 + fQ2/fXsample; // sample excited hadron mass
494 fEmu = fNuEnergy - fQ2/2./fM1/fXsample 494 fEmu = fNuEnergy - fQ2/2./fM1/fXsample;
495 } 495 }
496 else 496 else
497 { 497 {
498 fW2 = fM1*fM1; 498 fW2 = fM1*fM1;
499 fEmu = fNuEnergy; 499 fEmu = fNuEnergy;
500 } 500 }
501 e3 = fNuEnergy + fM1 - fEmu; 501 e3 = fNuEnergy + fM1 - fEmu;
502 502
503 // if( e3 < sqrt(fW2) ) G4cout<<"energy 503 // if( e3 < sqrt(fW2) ) G4cout<<"energyX = "<<e3/GeV<<", fW = "<<sqrt(fW2)/GeV<<G4endl; // vmg ~10^-5 for NC
504 504
505 pMu2 = fEmu*fEmu - fMnumu*fMnumu; 505 pMu2 = fEmu*fEmu - fMnumu*fMnumu;
506 pX2 = e3*e3 - fW2; 506 pX2 = e3*e3 - fW2;
507 507
508 fCosTheta = fNuEnergy*fNuEnergy + pMu2 508 fCosTheta = fNuEnergy*fNuEnergy + pMu2 - pX2;
509 fCosTheta /= 2.*fNuEnergy*sqrt(pMu2); 509 fCosTheta /= 2.*fNuEnergy*sqrt(pMu2);
510 iTer++; 510 iTer++;
511 } 511 }
512 while( ( abs(fCosTheta) > 1. || fEmu < fMn 512 while( ( abs(fCosTheta) > 1. || fEmu < fMnumu ) && iTer < iTerMax );
513 513
514 if( iTer >= iTerMax ) { fBreak = true; ret 514 if( iTer >= iTerMax ) { fBreak = true; return; }
515 515
516 if( abs(fCosTheta) > 1.) // vmg: due to bi 516 if( abs(fCosTheta) > 1.) // vmg: due to big Q2/x values. To be improved ...
517 { 517 {
518 G4cout<<"H2: fCosTheta = "<<fCosTheta<<" 518 G4cout<<"H2: fCosTheta = "<<fCosTheta<<", fEmu = "<<fEmu<<G4endl;
519 // fCosTheta = -1. + 2.*G4UniformRand(); 519 // fCosTheta = -1. + 2.*G4UniformRand();
520 if(fCosTheta < -1.) fCosTheta = -1.; 520 if(fCosTheta < -1.) fCosTheta = -1.;
521 if(fCosTheta > 1.) fCosTheta = 1.; 521 if(fCosTheta > 1.) fCosTheta = 1.;
522 } 522 }
523 // LVs 523 // LVs
524 524
525 G4LorentzVector lvt1 = G4LorentzVector( 0 525 G4LorentzVector lvt1 = G4LorentzVector( 0., 0., 0., fM1 );
526 G4LorentzVector lvsum = lvp1 + lvt1; 526 G4LorentzVector lvsum = lvp1 + lvt1;
527 527
528 cost = fCosTheta; 528 cost = fCosTheta;
529 sint = std::sqrt( (1.0 - cost)*(1.0 + cost 529 sint = std::sqrt( (1.0 - cost)*(1.0 + cost) );
530 phi = G4UniformRand()*CLHEP::twopi; 530 phi = G4UniformRand()*CLHEP::twopi;
531 eP = G4ThreeVector( sint*std::cos(phi), 531 eP = G4ThreeVector( sint*std::cos(phi), sint*std::sin(phi), cost );
532 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu); 532 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu);
533 eP *= muMom; 533 eP *= muMom;
534 fLVl = G4LorentzVector( eP, fEmu ); 534 fLVl = G4LorentzVector( eP, fEmu );
535 535
536 fLVh = lvsum - fLVl; 536 fLVh = lvsum - fLVl;
537 fLVt = G4LorentzVector( 0., 0., 0., 0. ); 537 fLVt = G4LorentzVector( 0., 0., 0., 0. ); // no recoil
538 } 538 }
539 else // Fermi motion, Q2 in nucleon rest fra 539 else // Fermi motion, Q2 in nucleon rest frame
540 { 540 {
541 G4ThreeVector nMomDir = nMom*G4RandomDirec 541 G4ThreeVector nMomDir = nMom*G4RandomDirection();
542 542
543 if( !f2p2h ) // 1p1h 543 if( !f2p2h ) // 1p1h
544 { 544 {
545 G4Nucleus recoil(A-1,Z); 545 G4Nucleus recoil(A-1,Z);
546 rM = sqrt( recoil.AtomicMass(A-1,Z)*reco 546 rM = sqrt( recoil.AtomicMass(A-1,Z)*recoil.AtomicMass(A-1,Z) + nMom*nMom );
547 hM = tM - rM; 547 hM = tM - rM;
548 548
549 fLVt = G4LorentzVector( nMomDir, sqrt( r 549 fLVt = G4LorentzVector( nMomDir, sqrt( rM*rM+nMom*nMom ) );
550 fLVh = G4LorentzVector(-nMomDir, sqrt( h 550 fLVh = G4LorentzVector(-nMomDir, sqrt( hM*hM+nMom*nMom ) );
551 } 551 }
552 else // 2p2h 552 else // 2p2h
553 { 553 {
554 G4Nucleus recoil(A-2,Z-1); 554 G4Nucleus recoil(A-2,Z-1);
555 rM = recoil.AtomicMass(A-2,Z-1)+sqrt(nMo 555 rM = recoil.AtomicMass(A-2,Z-1)+sqrt(nMom*nMom+fM1*fM1);
556 hM = tM - rM; 556 hM = tM - rM;
557 557
558 fLVt = G4LorentzVector( nMomDir, sqrt( r 558 fLVt = G4LorentzVector( nMomDir, sqrt( rM*rM+nMom*nMom ) );
559 fLVh = G4LorentzVector(-nMomDir, sqrt( h 559 fLVh = G4LorentzVector(-nMomDir, sqrt( hM*hM+nMom*nMom ) );
560 } 560 }
561 // G4cout<<hM<<", "; 561 // G4cout<<hM<<", ";
562 // bst = fLVh.boostVector(); // 9-3-20 562 // bst = fLVh.boostVector(); // 9-3-20
563 563
564 // lvp1.boost(-bst); // 9-3-20 -> nucleon 564 // lvp1.boost(-bst); // 9-3-20 -> nucleon rest system, where Q2 transfer is ???
565 565
566 fNuEnergy = lvp1.e(); 566 fNuEnergy = lvp1.e();
567 iTer = 0; 567 iTer = 0;
568 568
569 do 569 do
570 { 570 {
571 fXsample = SampleXkr(fNuEnergy); 571 fXsample = SampleXkr(fNuEnergy);
572 fQtransfer = SampleQkr(fNuEnergy, fXsamp 572 fQtransfer = SampleQkr(fNuEnergy, fXsample);
573 fQ2 = fQtransfer*fQtransfer; 573 fQ2 = fQtransfer*fQtransfer;
574 574
575 if( fXsample > 0. ) 575 if( fXsample > 0. )
576 { 576 {
577 fW2 = fM1*fM1 - fQ2 + fQ2/fXsample; // 577 fW2 = fM1*fM1 - fQ2 + fQ2/fXsample; // sample excited hadron mass
578 fEmu = fNuEnergy - fQ2/2./fM1/fXsample 578 fEmu = fNuEnergy - fQ2/2./fM1/fXsample;
579 } 579 }
580 else 580 else
581 { 581 {
582 fW2 = fM1*fM1; 582 fW2 = fM1*fM1;
583 fEmu = fNuEnergy; 583 fEmu = fNuEnergy;
584 } 584 }
585 585
586 // if(fEmu < 0.) G4cout<<"fEmu = "<<fEmu 586 // if(fEmu < 0.) G4cout<<"fEmu = "<<fEmu<<" hM = "<<hM<<G4endl;
587 587
588 e3 = fNuEnergy + fM1 - fEmu; 588 e3 = fNuEnergy + fM1 - fEmu;
589 589
590 // if( e3 < sqrt(fW2) ) G4cout<<"energy 590 // if( e3 < sqrt(fW2) ) G4cout<<"energyX = "<<e3/GeV<<", fW = "<<sqrt(fW2)/GeV<<G4endl;
591 591
592 pMu2 = fEmu*fEmu - fMnumu*fMnumu; 592 pMu2 = fEmu*fEmu - fMnumu*fMnumu;
593 pX2 = e3*e3 - fW2; 593 pX2 = e3*e3 - fW2;
594 594
595 fCosTheta = fNuEnergy*fNuEnergy + pMu2 595 fCosTheta = fNuEnergy*fNuEnergy + pMu2 - pX2;
596 fCosTheta /= 2.*fNuEnergy*sqrt(pMu2); 596 fCosTheta /= 2.*fNuEnergy*sqrt(pMu2);
597 iTer++; 597 iTer++;
598 } 598 }
599 while( ( abs(fCosTheta) > 1. || fEmu < fMn 599 while( ( abs(fCosTheta) > 1. || fEmu < fMnumu ) && iTer < iTerMax );
600 600
601 if( iTer >= iTerMax ) { fBreak = true; ret 601 if( iTer >= iTerMax ) { fBreak = true; return; }
602 602
603 if( abs(fCosTheta) > 1.) // vmg: due to bi 603 if( abs(fCosTheta) > 1.) // vmg: due to big Q2/x values. To be improved ...
604 { 604 {
605 G4cout<<"FM: fCosTheta = "<<fCosTheta<<" 605 G4cout<<"FM: fCosTheta = "<<fCosTheta<<", fEmu = "<<fEmu<<G4endl;
606 // fCosTheta = -1. + 2.*G4UniformRand(); 606 // fCosTheta = -1. + 2.*G4UniformRand();
607 if(fCosTheta < -1.) fCosTheta = -1.; 607 if(fCosTheta < -1.) fCosTheta = -1.;
608 if(fCosTheta > 1.) fCosTheta = 1.; 608 if(fCosTheta > 1.) fCosTheta = 1.;
609 } 609 }
610 // LVs 610 // LVs
611 G4LorentzVector lvt1 = G4LorentzVector( 0 611 G4LorentzVector lvt1 = G4LorentzVector( 0., 0., 0., fM1 );
612 G4LorentzVector lvsum = lvp1 + lvt1; 612 G4LorentzVector lvsum = lvp1 + lvt1;
613 613
614 cost = fCosTheta; 614 cost = fCosTheta;
615 sint = std::sqrt( (1.0 - cost)*(1.0 + cost 615 sint = std::sqrt( (1.0 - cost)*(1.0 + cost) );
616 phi = G4UniformRand()*CLHEP::twopi; 616 phi = G4UniformRand()*CLHEP::twopi;
617 eP = G4ThreeVector( sint*std::cos(phi), 617 eP = G4ThreeVector( sint*std::cos(phi), sint*std::sin(phi), cost );
618 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu); 618 muMom = sqrt(fEmu*fEmu-fMnumu*fMnumu);
619 eP *= muMom; 619 eP *= muMom;
620 fLVl = G4LorentzVector( eP, fEmu ); 620 fLVl = G4LorentzVector( eP, fEmu );
621 fLVh = lvsum - fLVl; 621 fLVh = lvsum - fLVl;
622 // back to lab system 622 // back to lab system
623 // fLVl.boost(bst); // 9-3-20 623 // fLVl.boost(bst); // 9-3-20
624 // fLVh.boost(bst); // 9-3-20 624 // fLVh.boost(bst); // 9-3-20
625 } 625 }
626 //G4cout<<iTer<<", "<<fBreak<<"; "; 626 //G4cout<<iTer<<", "<<fBreak<<"; ";
627 } 627 }
628 628
629 // 629 //
630 // 630 //
631 /////////////////////////// 631 ///////////////////////////
632 632