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26 // 26 //
>> 27 // $Id$
27 // 28 //
28 // 29 //
29 // G4 Physics class: G4QuasiElRatios for N+A e 30 // G4 Physics class: G4QuasiElRatios for N+A elastic cross sections
30 // Created: M.V. Kossov, CERN/ITEP(Moscow), 10 31 // Created: M.V. Kossov, CERN/ITEP(Moscow), 10-OCT-01
31 // The last update: M.V. Kossov, CERN/ITEP (Mo 32 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Oct-06
32 // 33 //
33 // ------------------------------------------- 34 // ----------------------------------------------------------------------
34 // This class has been extracted from the CHIP 35 // This class has been extracted from the CHIPS model.
35 // All the dependencies on CHIPS classes have 36 // All the dependencies on CHIPS classes have been removed.
36 // Short description: Provides percentage of q 37 // Short description: Provides percentage of quasi-free and quasi-elastic
37 // reactions in the inelastic reactions. 38 // reactions in the inelastic reactions.
38 // ------------------------------------------- 39 // ----------------------------------------------------------------------
39 40
40 41
41 #include "G4QuasiElRatios.hh" 42 #include "G4QuasiElRatios.hh"
42 #include "G4PhysicalConstants.hh" 43 #include "G4PhysicalConstants.hh"
43 #include "G4SystemOfUnits.hh" 44 #include "G4SystemOfUnits.hh"
44 #include "G4Proton.hh" 45 #include "G4Proton.hh"
45 #include "G4Neutron.hh" 46 #include "G4Neutron.hh"
46 #include "G4Deuteron.hh" 47 #include "G4Deuteron.hh"
47 #include "G4Triton.hh" 48 #include "G4Triton.hh"
48 #include "G4He3.hh" 49 #include "G4He3.hh"
49 #include "G4Alpha.hh" 50 #include "G4Alpha.hh"
50 #include "G4ThreeVector.hh" 51 #include "G4ThreeVector.hh"
51 #include "G4CrossSectionDataSetRegistry.hh" 52 #include "G4CrossSectionDataSetRegistry.hh"
52 #include "G4Pow.hh" <<
53 #include "G4Log.hh" <<
54 #include "G4Exp.hh" <<
55 <<
56 namespace { <<
57 const G4int nps=150; // Number o <<
58 const G4int mps=nps+1; // Number o <<
59 const G4double sma=150.; // The firs <<
60 const G4double ds=sma/nps; // Step of <<
61 const G4int nls=100; // Number o <<
62 const G4int mls=nls+1; // Number o <<
63 const G4double lsi=5.; // The min <<
64 const G4double lsa=9.; // The max <<
65 const G4double mi=G4Exp(lsi);// The min s <<
66 const G4double min_s=G4Exp(lsa);// The max <<
67 const G4double dls=(lsa-lsi)/nls;// Step o <<
68 const G4double edls=G4Exp(dls);// Multipli <<
69 const G4double toler=.01; // The tola <<
70 const G4double C=1.246; <<
71 const G4double lmi=3.5; // min of (l <<
72 const G4double pbe=.0557; // elastic ( <<
73 const G4double pbt=.3; // total (ln <<
74 const G4double pmi=.1; // Below tha <<
75 const G4double pma=1000.; // Above tha <<
76 const G4int nlp=300; // Number <<
77 const G4int mlp=nlp+1; // Number <<
78 const G4double lpi=-5.; // The min <<
79 const G4double lpa=10.; // The max <<
80 const G4double mip=G4Exp(lpi);// The min p <<
81 const G4double map=G4Exp(lpa);// The max p <<
82 const G4double dlp=(lpa-lpi)/nlp;// Step o <<
83 const G4double edlp=G4Exp(dlp);// Multipli <<
84 } <<
85 53
86 54
>> 55 // initialisation of statics
>> 56 std::vector<G4double*> G4QuasiElRatios::vT; // Vector of pointers to LinTable in C++ heap
>> 57 std::vector<G4double*> G4QuasiElRatios::vL; // Vector of pointers to LogTable in C++ heap
>> 58 std::vector<std::pair<G4double,G4double>*> G4QuasiElRatios::vX; // ETPointers to LogTable
>> 59
87 G4QuasiElRatios::G4QuasiElRatios() 60 G4QuasiElRatios::G4QuasiElRatios()
88 { 61 {
89 vT = new std::vector<G4double*>; <<
90 vL = new std::vector<G4double*>; <<
91 vX = new std::vector<std::pair<G4double,G4 <<
92 <<
93 lastSRatio=0.; // The last sig <<
94 lastRRatio=0.; // The last rat <<
95 lastARatio=0; // theLast of ca <<
96 lastHRatio=0.; // theLast of ma <<
97 lastNRatio=0; // theLast of to <<
98 lastMRatio=0.; // theLast of re <<
99 lastKRatio=0; // theLast of to <<
100 lastTRatio=0; // theLast of po <<
101 lastLRatio=0; // theLast of po <<
102 lastPtot=0.; // The last mome <<
103 lastHtot=0; // The last proj <<
104 lastFtot=true; // The last nucl <<
105 lastItot=0; // The Last index <<
106 lastMtot=0.; // The Last rel m <<
107 lastKtot=0; // The Last topBin <<
108 lastXtot = nullptr; // The Last ETPoin <<
109 62
110 PCSmanager=(G4ChipsProtonElasticXS*)G4Cros 63 PCSmanager=(G4ChipsProtonElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsProtonElasticXS::Default_Name());
111 64
112 NCSmanager=(G4ChipsNeutronElasticXS*)G4Cro 65 NCSmanager=(G4ChipsNeutronElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsNeutronElasticXS::Default_Name());
113 } 66 }
114 67
115 G4QuasiElRatios::~G4QuasiElRatios() 68 G4QuasiElRatios::~G4QuasiElRatios()
116 { 69 {
117 std::vector<G4double*>::iterator pos; 70 std::vector<G4double*>::iterator pos;
118 for(pos=vT->begin(); pos<vT->end(); pos++) << 71 for(pos=vT.begin(); pos<vT.end(); pos++)
119 { delete [] *pos; } 72 { delete [] *pos; }
120 vT->clear(); << 73 vT.clear();
121 delete vT; << 74 for(pos=vL.begin(); pos<vL.end(); pos++)
122 <<
123 for(pos=vL->begin(); pos<vL->end(); pos++) <<
124 { delete [] *pos; } 75 { delete [] *pos; }
125 vL->clear(); << 76 vL.clear();
126 delete vL; <<
127 77
128 std::vector<std::pair<G4double,G4double>*> 78 std::vector<std::pair<G4double,G4double>*>::iterator pos2;
129 for(pos2=vX->begin(); pos2<vX->end(); pos2 << 79 for(pos2=vX.begin(); pos2<vX.end(); pos2++)
130 { delete [] *pos2; } 80 { delete [] *pos2; }
131 vX->clear(); << 81 vX.clear();
132 delete vX; << 82 }
>> 83
>> 84 // Returns Pointer to the G4VQCrossSection class
>> 85 G4QuasiElRatios* G4QuasiElRatios::GetPointer()
>> 86 {
>> 87 static G4QuasiElRatios theRatios; // *** Static body of the QEl Cross Section ***
>> 88 return &theRatios;
133 } 89 }
134 90
135 // Calculation of pair(QuasiFree/Inelastic,Qua 91 // Calculation of pair(QuasiFree/Inelastic,QuasiElastic/QuasiFree)
136 std::pair<G4double,G4double> G4QuasiElRatios:: 92 std::pair<G4double,G4double> G4QuasiElRatios::GetRatios(G4double pIU, G4int pPDG,
137 93 G4int tgZ, G4int tgN)
138 { 94 {
139 G4double R=0.; 95 G4double R=0.;
140 G4double QF2In=1.; 96 G4double QF2In=1.; // Prototype of QuasiFree/Inel ratio for hN_tot
141 G4int tgA=tgZ+tgN; 97 G4int tgA=tgZ+tgN;
142 if(tgA<2) return std::make_pair(QF2In,R); 98 if(tgA<2) return std::make_pair(QF2In,R); // No quasi-elastic on the only nucleon
143 std::pair<G4double,G4double> ElTot=GetElTo 99 std::pair<G4double,G4double> ElTot=GetElTot(pIU, pPDG, tgZ, tgN); // mean hN El&Tot(IU)
144 //if( ( (pPDG>999 && pIU<227.) || pIU<27.) 100 //if( ( (pPDG>999 && pIU<227.) || pIU<27.) && tgA>1) R=1.; // @@ TMP to accelerate @lowE
145 if(pPDG>999 && pIU<227. && tgZ+tgN>1) R=1. 101 if(pPDG>999 && pIU<227. && tgZ+tgN>1) R=1.; // To accelerate @lowE
146 else if(ElTot.second>0.) 102 else if(ElTot.second>0.)
147 { 103 {
148 R=ElTot.first/ElTot.second; 104 R=ElTot.first/ElTot.second; // El/Total ratio (does not depend on units
149 QF2In=GetQF2IN_Ratio(ElTot.second/mill 105 QF2In=GetQF2IN_Ratio(ElTot.second/millibarn, tgZ+tgN); // QuasiFree/Inelastic ratio
150 } 106 }
151 return std::make_pair(QF2In,R); 107 return std::make_pair(QF2In,R);
152 } 108 }
153 109
154 // Calculatio QasiFree/Inelastic Ratio as a fu 110 // Calculatio QasiFree/Inelastic Ratio as a function of total hN cross-section (mb) and A
155 G4double G4QuasiElRatios::GetQF2IN_Ratio(G4dou 111 G4double G4QuasiElRatios::GetQF2IN_Ratio(G4double m_s, G4int A)
156 { 112 {
>> 113 static const G4int nps=150; // Number of steps in the R(s) LinTable
>> 114 static const G4int mps=nps+1; // Number of elements in the R(s) LinTable
>> 115 static const G4double sma=150.; // The first LinTabEl(s=0)=1., s>sma -> logTab
>> 116 static const G4double ds=sma/nps; // Step of the linear Table
>> 117 static const G4int nls=100; // Number of steps in the R(lns) logTable
>> 118 static const G4int mls=nls+1; // Number of elements in the R(lns) logTable
>> 119 static const G4double lsi=5.; // The min ln(s) logTabEl(s=148.4 < sma=150.)
>> 120 static const G4double lsa=9.; // The max ln(s) logTabEl(s=148.4 - 8103. mb)
>> 121 static const G4double mi=std::exp(lsi);// The min s of logTabEl(~ 148.4 mb)
>> 122 static const G4double min_s=std::exp(lsa);// The max s of logTabEl(~ 8103. mb)
>> 123 static const G4double dl=(lsa-lsi)/nls;// Step of the logarithmic Table
>> 124 static const G4double edl=std::exp(dl);// Multiplication step of the logarithmic Table
>> 125 static const G4double toler=.01; // The tolarence mb defining the same cross-section
>> 126 static G4double lastS=0.; // The last sigma value for which R was calculated
>> 127 static G4double lastR=0.; // The last ratio R which was calculated
>> 128 // Local Associative Data Base:
>> 129 static std::vector<G4int> vA; // Vector of calculated A
>> 130 static std::vector<G4double> vH; // Vector of max s initialized in the LinTable
>> 131 static std::vector<G4int> vN; // Vector of topBin number initialized in LinTable
>> 132 static std::vector<G4double> vM; // Vector of rel max ln(s) initialized in LogTable
>> 133 static std::vector<G4int> vK; // Vector of topBin number initialized in LogTable
>> 134 // Last values of the Associative Data Base:
>> 135 static G4int lastA=0; // theLast of calculated A
>> 136 static G4double lastH=0.; // theLast of max s initialized in the LinTable
>> 137 static G4int lastN=0; // theLast of topBin number initialized in LinTable
>> 138 static G4double lastM=0.; // theLast of rel max ln(s) initialized in LogTable
>> 139 static G4int lastK=0; // theLast of topBin number initialized in LogTable
>> 140 static G4double* lastT=0; // theLast of pointer to LinTable in the C++ heap
>> 141 static G4double* lastL=0; // theLast of pointer to LogTable in the C++ heap
157 // LogTable is created only if necessary. 142 // LogTable is created only if necessary. The ratio R(s>8100 mb) = 0 for any nuclei
158 if(m_s<toler || A<2) return 1.; 143 if(m_s<toler || A<2) return 1.;
159 if(m_s>min_s) return 0.; 144 if(m_s>min_s) return 0.;
160 << 145 if(A>238)
161 //if(A>238) << 146 {
162 //{ << 147 G4cout<<"-Warning-G4QuasiElRatio::GetQF2IN_Ratio:A="<<A<<">238, return zero"<<G4endl;
163 // G4cout<<"-Warning-G4QuasiElRatio::Ge << 148 return 0.;
164 // return 0.; << 149 }
165 //} << 150 G4int nDB=vA.size(); // A number of nuclei already initialized in AMDB
166 G4int nDB=(G4int)vARatio.size(); // A num << 151 if(nDB && lastA==A && m_s==lastS) return lastR; // VI do not use tolerance
167 if(nDB && lastARatio==A && m_s==lastSRatio <<
168 G4bool found=false; 152 G4bool found=false;
169 G4int i=-1; 153 G4int i=-1;
170 if(nDB) for (i=0; i<nDB; i++) if(A==vARati << 154 if(nDB) for (i=0; i<nDB; i++) if(A==vA[i]) // Search for this A in AMDB
171 { 155 {
172 found=true; // 156 found=true; // The A value is found
173 break; 157 break;
174 } 158 }
175 if(!nDB || !found) // C 159 if(!nDB || !found) // Create new line in the AMDB
176 { 160 {
177 lastARatio = A; << 161 lastA = A;
178 lastTRatio = new G4double[mps]; << 162 lastT = new G4double[mps]; // Create the linear Table
179 lastNRatio = static_cast<int>(m_s/ds)+ << 163 lastN = static_cast<int>(m_s/ds)+1; // MaxBin to be initialized
180 if(lastNRatio>nps) << 164 if(lastN>nps)
181 { 165 {
182 lastNRatio=nps; << 166 lastN=nps;
183 lastHRatio=sma; << 167 lastH=sma;
184 } 168 }
185 else lastHRatio = lastNRatio*ds; << 169 else lastH = lastN*ds; // Calculate max initialized s for LinTab
186 G4double sv=0; 170 G4double sv=0;
187 lastTRatio[0]=1.; << 171 lastT[0]=1.;
188 for(G4int j=1; j<=lastNRatio; j++) << 172 for(G4int j=1; j<=lastN; j++) // Calculate LogTab values
189 { 173 {
190 sv+=ds; 174 sv+=ds;
191 lastTRatio[j]=CalcQF2IN_Ratio(sv,A << 175 lastT[j]=CalcQF2IN_Ratio(sv,A);
192 } 176 }
193 lastLRatio=new G4double[mls]; << 177 lastL=new G4double[mls]; // Create the logarithmic Table
194 // Initialize the logarithmic Table << 178 if(m_s>sma) // Initialize the logarithmic Table
195 for(G4int j=0; j<mls; ++j) lastLRatio[j]=0.0 << 179 {
196 if(m_s>sma) << 180 G4double ls=std::log(m_s);
197 { << 181 lastK = static_cast<int>((ls-lsi)/dl)+1; // MaxBin to be initialized in LogTaB
198 G4double ls=G4Log(m_s); << 182 if(lastK>nls)
199 lastKRatio = static_cast<int>((ls- <<
200 if(lastKRatio>nls) <<
201 { 183 {
202 lastKRatio=nls; << 184 lastK=nls;
203 lastMRatio=lsa-lsi; << 185 lastM=lsa-lsi;
204 } 186 }
205 else lastMRatio = lastKRatio*dls; << 187 else lastM = lastK*dl; // Calculate max initialized ln(s)-lsi for LogTab
206 sv=mi; 188 sv=mi;
207 for(G4int j=0; j<=lastKRatio; j++) << 189 for(G4int j=0; j<=lastK; j++) // Calculate LogTab values
208 { 190 {
209 lastLRatio[j]=CalcQF2IN_Ratio( << 191 lastL[j]=CalcQF2IN_Ratio(sv,A);
210 if(j!=lastKRatio) sv*=edls; << 192 if(j!=lastK) sv*=edl;
211 } 193 }
212 } 194 }
213 else // 195 else // LogTab is not initialized
214 { 196 {
215 lastKRatio = 0; << 197 lastK = 0;
216 lastMRatio = 0.; << 198 lastM = 0.;
217 } 199 }
218 i++; // 200 i++; // Make a new record to AMDB and position on it
219 vARatio.push_back(lastARatio); << 201 vA.push_back(lastA);
220 vHRatio.push_back(lastHRatio); << 202 vH.push_back(lastH);
221 vNRatio.push_back(lastNRatio); << 203 vN.push_back(lastN);
222 vMRatio.push_back(lastMRatio); << 204 vM.push_back(lastM);
223 vKRatio.push_back(lastKRatio); << 205 vK.push_back(lastK);
224 vT->push_back(lastTRatio); << 206 vT.push_back(lastT);
225 vL->push_back(lastLRatio); << 207 vL.push_back(lastL);
226 } 208 }
227 else // T 209 else // The A value was found in AMDB
228 { 210 {
229 lastARatio=vARatio[i]; << 211 lastA=vA[i];
230 lastHRatio=vHRatio[i]; << 212 lastH=vH[i];
231 lastNRatio=vNRatio[i]; << 213 lastN=vN[i];
232 lastMRatio=vMRatio[i]; << 214 lastM=vM[i];
233 lastKRatio=vKRatio[i]; << 215 lastK=vK[i];
234 lastTRatio=(*vT)[i]; << 216 lastT=vT[i];
235 lastLRatio=(*vL)[i]; << 217 lastL=vL[i];
236 if(m_s>lastHRatio) << 218 if(m_s>lastH) // At least LinTab must be updated
237 { 219 {
238 G4int nextN=lastNRatio+1; << 220 G4int nextN=lastN+1; // The next bin to be initialized
239 if(lastNRatio<nps) << 221 if(lastN<nps)
240 { 222 {
241 G4double sv=lastHRatio; // bug fix by << 223 G4double sv=lastH; // bug fix by WP
242 224
243 lastNRatio = static_cast<int>( << 225 lastN = static_cast<int>(m_s/ds)+1;// MaxBin to be initialized
244 if(lastNRatio>nps) << 226 if(lastN>nps)
245 { 227 {
246 lastNRatio=nps; << 228 lastN=nps;
247 lastHRatio=sma; << 229 lastH=sma;
248 } 230 }
249 else lastHRatio = lastNRatio*d << 231 else lastH = lastN*ds; // Calculate max initialized s for LinTab
250 232
251 for(G4int j=nextN; j<=lastNRat << 233 for(G4int j=nextN; j<=lastN; j++)// Calculate LogTab values
252 { 234 {
253 sv+=ds; 235 sv+=ds;
254 lastTRatio[j]=CalcQF2IN_Ra << 236 lastT[j]=CalcQF2IN_Ratio(sv,A);
255 } 237 }
256 } // End of LinTab update 238 } // End of LinTab update
257 if(lastNRatio>=nextN) << 239 if(lastN>=nextN)
258 { 240 {
259 vHRatio[i]=lastHRatio; << 241 vH[i]=lastH;
260 vNRatio[i]=lastNRatio; << 242 vN[i]=lastN;
261 } 243 }
262 G4int nextK=lastKRatio+1; << 244 G4int nextK=lastK+1;
263 if(!lastKRatio) nextK=0; << 245 if(!lastK) nextK=0;
264 if(m_s>sma && lastKRatio<nls) << 246 if(m_s>sma && lastK<nls) // LogTab must be updated
265 { 247 {
266 G4double sv=G4Exp(lastMRatio+l << 248 G4double sv=std::exp(lastM+lsi); // Define starting poit (lastM will be changed)
267 G4double ls=G4Log(m_s); << 249 G4double ls=std::log(m_s);
268 lastKRatio = static_cast<int>( << 250 lastK = static_cast<int>((ls-lsi)/dl)+1; // MaxBin to be initialized in LogTaB
269 if(lastKRatio>nls) << 251 if(lastK>nls)
270 { 252 {
271 lastKRatio=nls; << 253 lastK=nls;
272 lastMRatio=lsa-lsi; << 254 lastM=lsa-lsi;
273 } 255 }
274 else lastMRatio = lastKRatio*d << 256 else lastM = lastK*dl; // Calculate max initialized ln(s)-lsi for LogTab
275 for(G4int j=nextK; j<=lastKRat << 257 for(G4int j=nextK; j<=lastK; j++)// Calculate LogTab values
276 { 258 {
277 sv*=edls; << 259 sv*=edl;
278 lastLRatio[j]=CalcQF2IN_Ra << 260 lastL[j]=CalcQF2IN_Ratio(sv,A);
279 } 261 }
280 } // End of LogTab update 262 } // End of LogTab update
281 if(lastKRatio>=nextK) << 263 if(lastK>=nextK)
282 { 264 {
283 vMRatio[i]=lastMRatio; << 265 vM[i]=lastM;
284 vKRatio[i]=lastKRatio; << 266 vK[i]=lastK;
285 } 267 }
286 } 268 }
287 } 269 }
288 // Now one can use tabeles to calculate th 270 // Now one can use tabeles to calculate the value
289 if(m_s<sma) // 271 if(m_s<sma) // Use linear table
290 { 272 {
291 G4int n=static_cast<int>(m_s/ds); 273 G4int n=static_cast<int>(m_s/ds); // Low edge number of the bin
292 G4double d=m_s-n*ds; 274 G4double d=m_s-n*ds; // Linear shift
293 G4double v=lastTRatio[n]; << 275 G4double v=lastT[n]; // Base
294 lastRRatio=v+d*(lastTRatio[n+1]-v)/ds; << 276 lastR=v+d*(lastT[n+1]-v)/ds; // Result
295 } 277 }
296 else // U 278 else // Use log table
297 { 279 {
298 G4double ls=G4Log(m_s)-lsi; // << 280 G4double ls=std::log(m_s)-lsi; // ln(s)-l_min
299 G4int n=static_cast<int>(ls/dls); / << 281 G4int n=static_cast<int>(ls/dl); // Low edge number of the bin
300 G4double d=ls-n*dls; / << 282 G4double d=ls-n*dl; // Log shift
301 G4double v=lastLRatio[n]; << 283 G4double v=lastL[n]; // Base
302 lastRRatio=v+d*(lastLRatio[n+1]-v)/dls << 284 lastR=v+d*(lastL[n+1]-v)/dl; // Result
303 } << 285 }
304 if(lastRRatio<0.) lastRRatio=0.; << 286 if(lastR<0.) lastR=0.;
305 if(lastRRatio>1.) lastRRatio=1.; << 287 if(lastR>1.) lastR=1.;
306 return lastRRatio; << 288 return lastR;
307 } // End of CalcQF2IN_Ratio 289 } // End of CalcQF2IN_Ratio
308 290
309 // Calculatio QasiFree/Inelastic Ratio as a fu 291 // Calculatio QasiFree/Inelastic Ratio as a function of total hN cross-section and A
310 G4double G4QuasiElRatios::CalcQF2IN_Ratio(G4do 292 G4double G4QuasiElRatios::CalcQF2IN_Ratio(G4double m_s, G4int A)
311 { 293 {
>> 294 static const G4double C=1.246;
312 G4double s2=m_s*m_s; 295 G4double s2=m_s*m_s;
313 G4double s4=s2*s2; 296 G4double s4=s2*s2;
314 G4double ss=std::sqrt(std::sqrt(m_s)); 297 G4double ss=std::sqrt(std::sqrt(m_s));
315 G4double P=7.48e-5*s2/(1.+8.77e12/s4/s4/s2 298 G4double P=7.48e-5*s2/(1.+8.77e12/s4/s4/s2);
316 G4double E=.2644+.016/(1.+G4Exp((29.54-m_s << 299 G4double E=.2644+.016/(1.+std::exp((29.54-m_s)/2.49));
317 G4double F=ss*.1526*G4Exp(-s2*ss*.0000859) << 300 G4double F=ss*.1526*std::exp(-s2*ss*.0000859);
318 return C*G4Exp(-E*G4Pow::GetInstance()->po << 301 return C*std::exp(-E*std::pow(G4double(A-1.),F))/std::pow(G4double(A),P);
319 } // End of CalcQF2IN_Ratio 302 } // End of CalcQF2IN_Ratio
320 303
321 // Calculatio pair(hN_el,hN_tot) (mb): p in Ge 304 // Calculatio pair(hN_el,hN_tot) (mb): p in GeV/c, index(PDG,F) (see FetchElTot)
322 std::pair<G4double,G4double> G4QuasiElRatios:: 305 std::pair<G4double,G4double> G4QuasiElRatios::CalcElTot(G4double p, G4int I)
323 { 306 {
324 // ---------> Each parameter set can have 307 // ---------> Each parameter set can have not more than nPoints=128 parameters
325 << 308 static const G4double lmi=3.5; // min of (lnP-lmi)^2 parabola
>> 309 static const G4double pbe=.0557; // elastic (lnP-lmi)^2 parabola coefficient
>> 310 static const G4double pbt=.3; // total (lnP-lmi)^2 parabola coefficient
>> 311 static const G4double pmi=.1; // Below that fast LE calculation is made
>> 312 static const G4double pma=1000.; // Above that fast HE calculation is made
326 G4double El=0.; // pr 313 G4double El=0.; // prototype of the elastic hN cross-section
327 G4double To=0.; // pr 314 G4double To=0.; // prototype of the total hN cross-section
328 if(p<=0.) 315 if(p<=0.)
329 { 316 {
330 G4cout<<"-Warning-G4QuasiElRatios::Cal 317 G4cout<<"-Warning-G4QuasiElRatios::CalcElTot: p="<<p<<" is zero or negative"<<G4endl;
331 return std::make_pair(El,To); 318 return std::make_pair(El,To);
332 } 319 }
333 if (!I) // pp 320 if (!I) // pp/nn
334 { 321 {
335 if(p<pmi) 322 if(p<pmi)
336 { 323 {
337 G4double p2=p*p; 324 G4double p2=p*p;
338 El=1./(.00012+p2*.2); 325 El=1./(.00012+p2*.2);
339 To=El; 326 To=El;
340 } 327 }
341 else if(p>pma) 328 else if(p>pma)
342 { 329 {
343 G4double lp=G4Log(p)-lmi; << 330 G4double lp=std::log(p)-lmi;
344 G4double lp2=lp*lp; 331 G4double lp2=lp*lp;
345 El=pbe*lp2+6.72; 332 El=pbe*lp2+6.72;
346 To=pbt*lp2+38.2; 333 To=pbt*lp2+38.2;
347 } 334 }
348 else 335 else
349 { 336 {
350 G4double p2=p*p; 337 G4double p2=p*p;
351 G4double LE=1./(.00012+p2*.2); 338 G4double LE=1./(.00012+p2*.2);
352 G4double lp=G4Log(p)-lmi; << 339 G4double lp=std::log(p)-lmi;
353 G4double lp2=lp*lp; 340 G4double lp2=lp*lp;
354 G4double rp2=1./p2; 341 G4double rp2=1./p2;
355 El=LE+(pbe*lp2+6.72+32.6/p)/(1.+rp 342 El=LE+(pbe*lp2+6.72+32.6/p)/(1.+rp2/p);
356 To=LE+(pbt*lp2+38.2+52.7*rp2)/(1.+ 343 To=LE+(pbt*lp2+38.2+52.7*rp2)/(1.+2.72*rp2*rp2);
357 } 344 }
358 } 345 }
359 else if(I==1) // np 346 else if(I==1) // np/pn
360 { 347 {
361 if(p<pmi) 348 if(p<pmi)
362 { 349 {
363 G4double p2=p*p; 350 G4double p2=p*p;
364 El=1./(.00012+p2*(.051+.1*p2)); 351 El=1./(.00012+p2*(.051+.1*p2));
365 To=El; 352 To=El;
366 } 353 }
367 else if(p>pma) 354 else if(p>pma)
368 { 355 {
369 G4double lp=G4Log(p)-lmi; << 356 G4double lp=std::log(p)-lmi;
370 G4double lp2=lp*lp; 357 G4double lp2=lp*lp;
371 El=pbe*lp2+6.72; 358 El=pbe*lp2+6.72;
372 To=pbt*lp2+38.2; 359 To=pbt*lp2+38.2;
373 } 360 }
374 else 361 else
375 { 362 {
376 G4double p2=p*p; 363 G4double p2=p*p;
377 G4double LE=1./(.00012+p2*(.051+.1 364 G4double LE=1./(.00012+p2*(.051+.1*p2));
378 G4double lp=G4Log(p)-lmi; << 365 G4double lp=std::log(p)-lmi;
379 G4double lp2=lp*lp; 366 G4double lp2=lp*lp;
380 G4double rp2=1./p2; 367 G4double rp2=1./p2;
381 El=LE+(pbe*lp2+6.72+30./p)/(1.+.49 368 El=LE+(pbe*lp2+6.72+30./p)/(1.+.49*rp2/p);
382 To=LE+(pbt*lp2+38.2)/(1.+.54*rp2*r 369 To=LE+(pbt*lp2+38.2)/(1.+.54*rp2*rp2);
383 } 370 }
384 } 371 }
385 else if(I==2) // pi 372 else if(I==2) // pimp/pipn
386 { 373 {
387 G4double lp=G4Log(p); << 374 G4double lp=std::log(p);
388 if(p<pmi) 375 if(p<pmi)
389 { 376 {
390 G4double lr=lp+1.27; 377 G4double lr=lp+1.27;
391 El=1.53/(lr*lr+.0676); 378 El=1.53/(lr*lr+.0676);
392 To=El*3; 379 To=El*3;
393 } 380 }
394 else if(p>pma) 381 else if(p>pma)
395 { 382 {
396 G4double ld=lp-lmi; 383 G4double ld=lp-lmi;
397 G4double ld2=ld*ld; 384 G4double ld2=ld*ld;
398 G4double sp=std::sqrt(p); 385 G4double sp=std::sqrt(p);
399 El=pbe*ld2+2.4+7./sp; 386 El=pbe*ld2+2.4+7./sp;
400 To=pbt*ld2+22.3+12./sp; 387 To=pbt*ld2+22.3+12./sp;
401 } 388 }
402 else 389 else
403 { 390 {
404 G4double lr=lp+1.27; 391 G4double lr=lp+1.27; // p1
405 G4double LE=1.53/(lr*lr+.0676); 392 G4double LE=1.53/(lr*lr+.0676); // p2, p3
406 G4double ld=lp-lmi; 393 G4double ld=lp-lmi; // p4 (lmi=3.5)
407 G4double ld2=ld*ld; 394 G4double ld2=ld*ld;
408 G4double p2=p*p; 395 G4double p2=p*p;
409 G4double p4=p2*p2; 396 G4double p4=p2*p2;
410 G4double sp=std::sqrt(p); 397 G4double sp=std::sqrt(p);
411 G4double lm=lp+.36; 398 G4double lm=lp+.36; // p5
412 G4double md=lm*lm+.04; 399 G4double md=lm*lm+.04; // p6
413 G4double lh=lp-.017; 400 G4double lh=lp-.017; // p7
414 G4double hd=lh*lh+.0025; 401 G4double hd=lh*lh+.0025; // p8
415 El=LE+(pbe*ld2+2.4+7./sp)/(1.+.7/p 402 El=LE+(pbe*ld2+2.4+7./sp)/(1.+.7/p4)+.6/md+.05/hd;//p9(pbe=.0557),p10,p11,p12,p13,p14
416 To=LE*3+(pbt*ld2+22.3+12./sp)/(1.+ 403 To=LE*3+(pbt*ld2+22.3+12./sp)/(1.+.4/p4)+1./md+.06/hd;
417 } 404 }
418 } 405 }
419 else if(I==3) // pi 406 else if(I==3) // pipp/pimn
420 { 407 {
421 G4double lp=G4Log(p); << 408 G4double lp=std::log(p);
422 if(p<pmi) 409 if(p<pmi)
423 { 410 {
424 G4double lr=lp+1.27; 411 G4double lr=lp+1.27;
425 G4double lr2=lr*lr; 412 G4double lr2=lr*lr;
426 El=13./(lr2+lr2*lr2+.0676); 413 El=13./(lr2+lr2*lr2+.0676);
427 To=El; 414 To=El;
428 } 415 }
429 else if(p>pma) 416 else if(p>pma)
430 { 417 {
431 G4double ld=lp-lmi; 418 G4double ld=lp-lmi;
432 G4double ld2=ld*ld; 419 G4double ld2=ld*ld;
433 G4double sp=std::sqrt(p); 420 G4double sp=std::sqrt(p);
434 El=pbe*ld2+2.4+6./sp; 421 El=pbe*ld2+2.4+6./sp;
435 To=pbt*ld2+22.3+5./sp; 422 To=pbt*ld2+22.3+5./sp;
436 } 423 }
437 else 424 else
438 { 425 {
439 G4double lr=lp+1.27; 426 G4double lr=lp+1.27; // p1
440 G4double lr2=lr*lr; 427 G4double lr2=lr*lr;
441 G4double LE=13./(lr2+lr2*lr2+.0676 428 G4double LE=13./(lr2+lr2*lr2+.0676); // p2, p3
442 G4double ld=lp-lmi; 429 G4double ld=lp-lmi; // p4 (lmi=3.5)
443 G4double ld2=ld*ld; 430 G4double ld2=ld*ld;
444 G4double p2=p*p; 431 G4double p2=p*p;
445 G4double p4=p2*p2; 432 G4double p4=p2*p2;
446 G4double sp=std::sqrt(p); 433 G4double sp=std::sqrt(p);
447 G4double lm=lp-.32; 434 G4double lm=lp-.32; // p5
448 G4double md=lm*lm+.0576; 435 G4double md=lm*lm+.0576; // p6
449 El=LE+(pbe*ld2+2.4+6./sp)/(1.+3./p 436 El=LE+(pbe*ld2+2.4+6./sp)/(1.+3./p4)+.7/md; // p7(pbe=.0557), p8, p9, p10, p11
450 To=LE+(pbt*ld2+22.3+5./sp)/(1.+1./ 437 To=LE+(pbt*ld2+22.3+5./sp)/(1.+1./p4)+.8/md;
451 } 438 }
452 } 439 }
453 else if(I==4) // Km 440 else if(I==4) // Kmp/Kmn/K0p/K0n
454 { 441 {
455 442
456 if(p<pmi) 443 if(p<pmi)
457 { 444 {
458 G4double psp=p*std::sqrt(p); 445 G4double psp=p*std::sqrt(p);
459 El=5.2/psp; 446 El=5.2/psp;
460 To=14./psp; 447 To=14./psp;
461 } 448 }
462 else if(p>pma) 449 else if(p>pma)
463 { 450 {
464 G4double ld=G4Log(p)-lmi; << 451 G4double ld=std::log(p)-lmi;
465 G4double ld2=ld*ld; 452 G4double ld2=ld*ld;
466 El=pbe*ld2+2.23; 453 El=pbe*ld2+2.23;
467 To=pbt*ld2+19.5; 454 To=pbt*ld2+19.5;
468 } 455 }
469 else 456 else
470 { 457 {
471 G4double ld=G4Log(p)-lmi; << 458 G4double ld=std::log(p)-lmi;
472 G4double ld2=ld*ld; 459 G4double ld2=ld*ld;
473 G4double sp=std::sqrt(p); 460 G4double sp=std::sqrt(p);
474 G4double psp=p*sp; 461 G4double psp=p*sp;
475 G4double p2=p*p; 462 G4double p2=p*p;
476 G4double p4=p2*p2; 463 G4double p4=p2*p2;
477 G4double lm=p-.39; 464 G4double lm=p-.39;
478 G4double md=lm*lm+.000156; 465 G4double md=lm*lm+.000156;
479 G4double lh=p-1.; 466 G4double lh=p-1.;
480 G4double hd=lh*lh+.0156; 467 G4double hd=lh*lh+.0156;
481 El=5.2/psp+(pbe*ld2+2.23)/(1.-.7/s 468 El=5.2/psp+(pbe*ld2+2.23)/(1.-.7/sp+.075/p4)+.004/md+.15/hd;
482 To=14./psp+(pbt*ld2+19.5)/(1.-.21/ 469 To=14./psp+(pbt*ld2+19.5)/(1.-.21/sp+.52/p4)+.006/md+.30/hd;
483 } 470 }
484 } 471 }
485 else if(I==5) // Kp 472 else if(I==5) // Kpp/Kpn/aKp/aKn
486 { 473 {
487 if(p<pmi) 474 if(p<pmi)
488 { 475 {
489 G4double lr=p-.38; 476 G4double lr=p-.38;
490 G4double lm=p-1.; 477 G4double lm=p-1.;
491 G4double md=lm*lm+.372; 478 G4double md=lm*lm+.372;
492 El=.7/(lr*lr+.0676)+2./md; 479 El=.7/(lr*lr+.0676)+2./md;
493 To=El+.6/md; 480 To=El+.6/md;
494 } 481 }
495 else if(p>pma) 482 else if(p>pma)
496 { 483 {
497 G4double ld=G4Log(p)-lmi; << 484 G4double ld=std::log(p)-lmi;
498 G4double ld2=ld*ld; 485 G4double ld2=ld*ld;
499 El=pbe*ld2+2.23; 486 El=pbe*ld2+2.23;
500 To=pbt*ld2+19.5; 487 To=pbt*ld2+19.5;
501 } 488 }
502 else 489 else
503 { 490 {
504 G4double ld=G4Log(p)-lmi; << 491 G4double ld=std::log(p)-lmi;
505 G4double ld2=ld*ld; 492 G4double ld2=ld*ld;
506 G4double lr=p-.38; 493 G4double lr=p-.38;
507 G4double LE=.7/(lr*lr+.0676); 494 G4double LE=.7/(lr*lr+.0676);
508 G4double sp=std::sqrt(p); 495 G4double sp=std::sqrt(p);
509 G4double p2=p*p; 496 G4double p2=p*p;
510 G4double p4=p2*p2; 497 G4double p4=p2*p2;
511 G4double lm=p-1.; 498 G4double lm=p-1.;
512 G4double md=lm*lm+.372; 499 G4double md=lm*lm+.372;
513 El=LE+(pbe*ld2+2.23)/(1.-.7/sp+.1/ 500 El=LE+(pbe*ld2+2.23)/(1.-.7/sp+.1/p4)+2./md;
514 To=LE+(pbt*ld2+19.5)/(1.+.46/sp+1. 501 To=LE+(pbt*ld2+19.5)/(1.+.46/sp+1.6/p4)+2.6/md;
515 } 502 }
516 } 503 }
517 else if(I==6) // hy 504 else if(I==6) // hyperon-N
518 { 505 {
519 if(p<pmi) 506 if(p<pmi)
520 { 507 {
521 G4double p2=p*p; 508 G4double p2=p*p;
522 El=1./(.002+p2*(.12+p2)); 509 El=1./(.002+p2*(.12+p2));
523 To=El; 510 To=El;
524 } 511 }
525 else if(p>pma) 512 else if(p>pma)
526 { 513 {
527 G4double lp=G4Log(p)-lmi; << 514 G4double lp=std::log(p)-lmi;
528 G4double lp2=lp*lp; 515 G4double lp2=lp*lp;
529 G4double sp=std::sqrt(p); 516 G4double sp=std::sqrt(p);
530 El=(pbe*lp2+6.72)/(1.+2./sp); 517 El=(pbe*lp2+6.72)/(1.+2./sp);
531 To=(pbt*lp2+38.2+900./sp)/(1.+27./ 518 To=(pbt*lp2+38.2+900./sp)/(1.+27./sp);
532 } 519 }
533 else 520 else
534 { 521 {
535 G4double p2=p*p; 522 G4double p2=p*p;
536 G4double LE=1./(.002+p2*(.12+p2)); 523 G4double LE=1./(.002+p2*(.12+p2));
537 G4double lp=G4Log(p)-lmi; << 524 G4double lp=std::log(p)-lmi;
538 G4double lp2=lp*lp; 525 G4double lp2=lp*lp;
539 G4double p4=p2*p2; 526 G4double p4=p2*p2;
540 G4double sp=std::sqrt(p); 527 G4double sp=std::sqrt(p);
541 El=LE+(pbe*lp2+6.72+99./p2)/(1.+2. 528 El=LE+(pbe*lp2+6.72+99./p2)/(1.+2./sp+2./p4);
542 To=LE+(pbt*lp2+38.2+900./sp)/(1.+2 529 To=LE+(pbt*lp2+38.2+900./sp)/(1.+27./sp+3./p4);
543 } 530 }
544 } 531 }
545 else if(I==7) // an 532 else if(I==7) // antibaryon-N
546 { 533 {
547 if(p>pma) 534 if(p>pma)
548 { 535 {
549 G4double lp=G4Log(p)-lmi; << 536 G4double lp=std::log(p)-lmi;
550 G4double lp2=lp*lp; 537 G4double lp2=lp*lp;
551 El=pbe*lp2+6.72; 538 El=pbe*lp2+6.72;
552 To=pbt*lp2+38.2; 539 To=pbt*lp2+38.2;
553 } 540 }
554 else 541 else
555 { 542 {
556 G4double ye=G4Pow::GetInstance()-> << 543 G4double ye=std::pow(p,1.25);
557 G4double yt=G4Pow::GetInstance()-> << 544 G4double yt=std::pow(p,.35);
558 G4double lp=G4Log(p)-lmi; << 545 G4double lp=std::log(p)-lmi;
559 G4double lp2=lp*lp; 546 G4double lp2=lp*lp;
560 El=80./(ye+1.)+pbe*lp2+6.72; 547 El=80./(ye+1.)+pbe*lp2+6.72;
561 To=(80./yt+.3)/yt+pbt*lp2+38.2; 548 To=(80./yt+.3)/yt+pbt*lp2+38.2;
562 } 549 }
563 } 550 }
564 else 551 else
565 { 552 {
566 G4cout<<"*Error*G4QuasiElRatios::CalcE 553 G4cout<<"*Error*G4QuasiElRatios::CalcElTot:ind="<<I<<" is not defined (0-7)"<<G4endl;
567 G4Exception("G4QuasiElRatios::CalcElTo 554 G4Exception("G4QuasiElRatios::CalcElTot:","23",FatalException,"QEcrash");
568 } 555 }
569 if(El>To) El=To; 556 if(El>To) El=To;
570 return std::make_pair(El,To); 557 return std::make_pair(El,To);
571 } // End of CalcElTot 558 } // End of CalcElTot
572 559
573 // For hadron PDG with momentum Mom (GeV/c) on 560 // For hadron PDG with momentum Mom (GeV/c) on N (p/n) calculate <sig_el,sig_tot> pair (mb)
574 std::pair<G4double,G4double> G4QuasiElRatios:: 561 std::pair<G4double,G4double> G4QuasiElRatios::GetElTotXS(G4double p, G4int PDG, G4bool F)
575 { 562 {
576 G4int ind=0; 563 G4int ind=0; // Prototype of the reaction index
577 G4bool kfl=true; 564 G4bool kfl=true; // Flag of K0/aK0 oscillation
578 G4bool kf=false; 565 G4bool kf=false;
579 if(PDG==130||PDG==310) 566 if(PDG==130||PDG==310)
580 { 567 {
581 kf=true; 568 kf=true;
582 if(G4UniformRand()>.5) kfl=false; 569 if(G4UniformRand()>.5) kfl=false;
583 } 570 }
584 if ( (PDG == 2212 && F) || (PDG == 21 571 if ( (PDG == 2212 && F) || (PDG == 2112 && !F) ) ind=0; // pp/nn
585 else if ( (PDG == 2112 && F) || (PDG == 22 572 else if ( (PDG == 2112 && F) || (PDG == 2212 && !F) ) ind=1; // np/pn
586 else if ( (PDG == -211 && F) || (PDG == 21 573 else if ( (PDG == -211 && F) || (PDG == 211 && !F) ) ind=2; // pimp/pipn
587 else if ( (PDG == 211 && F) || (PDG == -21 574 else if ( (PDG == 211 && F) || (PDG == -211 && !F) ) ind=3; // pipp/pimn
588 //AR-Jul2020: Extended to charmed and bott << 575 else if ( PDG == -321 || PDG == -311 || (kf && !kfl) ) ind=4; // KmN/K0N
589 // - treat mesons with constituent c quark << 576 else if ( PDG == 321 || PDG == 311 || (kf && kfl) ) ind=5; // KpN/aK0N
590 // - treat mesons with constituent cbar an << 577 else if ( PDG > 3000 && PDG < 3335) ind=6; // @@ for all hyperons - take Lambda
591 // - treat all heavy baryons (i.e. hyperon << 578 else if ( PDG > -3335 && PDG < -2000) ind=7; // @@ for all anti-baryons (anti-p/anti-n)
592 // - treat all heavy anti-baryons (i.e. an <<
593 else if ( PDG == -321 || PDG == -311 || (k <<
594 PDG == 411 || PDG == 421 || PD <<
595 PDG == -521 || PDG == -511 || PDG == - <<
596 else if ( PDG == 321 || PDG == 311 || (k <<
597 PDG == -411 || PDG == -421 || PD <<
598 PDG == 521 || PDG == 511 || PDG == <<
599 else if ( PDG > 3000 && PDG < 5333 ) ind <<
600 else if ( PDG > -5333 && PDG < -2000 ) ind <<
601 else { 579 else {
602 G4cout<<"*Error*G4QuasiElRatios::CalcE 580 G4cout<<"*Error*G4QuasiElRatios::CalcElTotXS: PDG="<<PDG
603 <<", while it is defined only for p,n, 581 <<", while it is defined only for p,n,hyperons,anti-baryons,pi,K/antiK"<<G4endl;
604 G4Exception("G4QuasiElRatio::CalcElTot 582 G4Exception("G4QuasiElRatio::CalcElTotXS:","22",FatalException,"QEcrash");
605 } 583 }
606 return CalcElTot(p,ind); 584 return CalcElTot(p,ind);
607 } 585 }
608 586
609 // Calculatio pair(hN_el,hN_tot)(mb): p in GeV 587 // Calculatio pair(hN_el,hN_tot)(mb): p in GeV/c, F=true -> N=proton, F=false -> N=neutron
610 std::pair<G4double,G4double> G4QuasiElRatios:: 588 std::pair<G4double,G4double> G4QuasiElRatios::FetchElTot(G4double p, G4int PDG, G4bool F)
611 { 589 {
>> 590 static const G4int nlp=300; // Number of steps in the S(lnp) logTable(5% step)
>> 591 static const G4int mlp=nlp+1; // Number of elements in the S(lnp) logTable
>> 592 static const G4double lpi=-5.; // The min ln(p) logTabEl(p=6.7 MeV/c - 22. TeV/c)
>> 593 static const G4double lpa=10.; // The max ln(p) logTabEl(p=6.7 MeV/c - 22. TeV/c)
>> 594 static const G4double mi=std::exp(lpi);// The min p of logTabEl(~ 6.7 MeV/c)
>> 595 static const G4double ma=std::exp(lpa);// The max p of logTabEl(~ 22. TeV)
>> 596 static const G4double dl=(lpa-lpi)/nlp;// Step of the logarithmic Table
>> 597 static const G4double edl=std::exp(dl);// Multiplication step of the logarithmic Table
>> 598 //static const G4double toler=.001; // Relative Tolarence defining "theSameMomentum"
>> 599 static G4double lastP=0.; // The last momentum for which XS was calculated
>> 600 static G4int lastH=0; // The last projPDG for which XS was calculated
>> 601 static G4bool lastF=true; // The last nucleon for which XS was calculated
>> 602 static std::pair<G4double,G4double> lastR(0.,0.); // The last result
>> 603 // Local Associative Data Base:
>> 604 static std::vector<G4int> vI; // Vector of index for which XS was calculated
>> 605 static std::vector<G4double> vM; // Vector of rel max ln(p) initialized in LogTable
>> 606 static std::vector<G4int> vK; // Vector of topBin number initialized in LogTable
>> 607 // Last values of the Associative Data Base:
>> 608 static G4int lastI=0; // The Last index for which XS was calculated
>> 609 static G4double lastM=0.; // The Last rel max ln(p) initialized in LogTable
>> 610 static G4int lastK=0; // The Last topBin number initialized in LogTable
>> 611 static std::pair<G4double,G4double>* lastX=0; // The Last ETPointers to LogTable in heap
612 // LogTable is created only if necessary. 612 // LogTable is created only if necessary. The ratio R(s>8100 mb) = 0 for any nuclei
613 G4int nDB=(G4int)vItot.size(); // A numbe << 613 G4int nDB=vI.size(); // A number of hadrons already initialized in AMDB
614 if(nDB && lastHtot==PDG && lastFtot==F && << 614 if(nDB && lastH==PDG && lastF==F && p>0. && p==lastP) return lastR;// VI don't use toler.
615 // if(nDB && lastH==PDG && lastF==F && p> 615 // if(nDB && lastH==PDG && lastF==F && p>0. && std::fabs(p-lastP)/p<toler) return lastR;
616 lastHtot=PDG; << 616 lastH=PDG;
617 lastFtot=F; << 617 lastF=F;
618 G4int ind=-1; // 618 G4int ind=-1; // Prototipe of the index of the PDG/F combination
619 // i=0: pp(nn), i=1: np(pn), i=2: pimp(pip 619 // i=0: pp(nn), i=1: np(pn), i=2: pimp(pipn), i=3: pipp(pimn), i=4: Kmp(Kmn,K0n,K0p),
620 // i=5: Kpp(Kpn,aK0n,aK0p), i=6: Hp(Hn), i 620 // i=5: Kpp(Kpn,aK0n,aK0p), i=6: Hp(Hn), i=7: app(apn,ann,anp)
621 G4bool kfl=true; 621 G4bool kfl=true; // Flag of K0/aK0 oscillation
622 G4bool kf=false; 622 G4bool kf=false;
623 if(PDG==130||PDG==310) 623 if(PDG==130||PDG==310)
624 { 624 {
625 kf=true; 625 kf=true;
626 if(G4UniformRand()>.5) kfl=false; 626 if(G4UniformRand()>.5) kfl=false;
627 } 627 }
628 if ( (PDG == 2212 && F) || (PDG == 21 628 if ( (PDG == 2212 && F) || (PDG == 2112 && !F) ) ind=0; // pp/nn
629 else if ( (PDG == 2112 && F) || (PDG == 22 629 else if ( (PDG == 2112 && F) || (PDG == 2212 && !F) ) ind=1; // np/pn
630 else if ( (PDG == -211 && F) || (PDG == 21 630 else if ( (PDG == -211 && F) || (PDG == 211 && !F) ) ind=2; // pimp/pipn
631 else if ( (PDG == 211 && F) || (PDG == -21 631 else if ( (PDG == 211 && F) || (PDG == -211 && !F) ) ind=3; // pipp/pimn
632 //AR-Jul2020: Extended to charmed and bott << 632 else if ( PDG == -321 || PDG == -311 || (kf && !kfl) ) ind=4; // KmN/K0N
633 // - treat mesons with constituent c quark << 633 else if ( PDG == 321 || PDG == 311 || (kf && kfl) ) ind=5; // KpN/aK0N
634 // - treat mesons with constituent cbar an << 634 else if ( PDG > 3000 && PDG < 3335) ind=6; // @@ for all hyperons - take Lambda
635 // - treat all heavy baryons (i.e. hyperon << 635 else if ( PDG > -3335 && PDG < -2000) ind=7; // @@ for all anti-baryons (anti-p/anti-n)
636 // - treat all heavy anti-baryons (i.e. an <<
637 else if ( PDG == -321 || PDG == -311 || (k <<
638 PDG == 411 || PDG == 421 || PD <<
639 PDG == -521 || PDG == -511 || PDG == - <<
640 else if ( PDG == 321 || PDG == 311 || (k <<
641 PDG == -411 || PDG == -421 || PD <<
642 PDG == 521 || PDG == 511 || PDG == <<
643 else if ( PDG > 3000 && PDG < 5333 ) ind <<
644 else if ( PDG > -5333 && PDG < -2000 ) ind <<
645 else { 636 else {
646 G4cout<<"*Error*G4QuasiElRatios::Fetch 637 G4cout<<"*Error*G4QuasiElRatios::FetchElTot: PDG="<<PDG
647 <<", while it is defined only for p,n, 638 <<", while it is defined only for p,n,hyperons,anti-baryons,pi,K/antiK"<<G4endl;
648 G4Exception("G4QuasiELRatio::FetchElTo 639 G4Exception("G4QuasiELRatio::FetchElTot:","22",FatalException,"QECrash");
649 } 640 }
650 if(nDB && lastItot==ind && p>0. && p==last << 641 if(nDB && lastI==ind && p>0. && p==lastP) return lastR; // VI do not use toler
651 // if(nDB && lastI==ind && p>0. && std::f 642 // if(nDB && lastI==ind && p>0. && std::fabs(p-lastP)/p<toler) return lastR;
652 if(p<=mip || p>=map) return CalcElTot(p,in << 643 if(p<=mi || p>=ma) return CalcElTot(p,ind); // @@ Slow calculation ! (Warning?)
653 G4bool found=false; 644 G4bool found=false;
654 G4int i=-1; 645 G4int i=-1;
655 if(nDB) for (i=0; i<nDB; i++) if(ind==vIto << 646 if(nDB) for (i=0; i<nDB; i++) if(ind==vI[i]) // Sirch for this index in AMDB
656 { 647 {
657 found=true; 648 found=true; // The index is found
658 break; 649 break;
659 } 650 }
660 G4double lp=G4Log(p); << 651 G4double lp=std::log(p);
661 if(!nDB || !found) 652 if(!nDB || !found) // Create new line in the AMDB
662 { 653 {
663 lastXtot = new std::pair<G4double,G4do << 654 lastX = new std::pair<G4double,G4double>[mlp]; // Create logarithmic Table for ElTot
664 lastItot = ind; << 655 lastI = ind; // Remember the initialized inex
665 lastKtot = static_cast<int>((lp-lpi)/d << 656 lastK = static_cast<int>((lp-lpi)/dl)+1; // MaxBin to be initialized in LogTaB
666 if(lastKtot>nlp) << 657 if(lastK>nlp)
667 { << 658 {
668 lastKtot=nlp; << 659 lastK=nlp;
669 lastMtot=lpa-lpi; << 660 lastM=lpa-lpi;
670 } << 661 }
671 else lastMtot = lastKtot*dlp; << 662 else lastM = lastK*dl; // Calculate max initialized ln(p)-lpi for LogTab
672 G4double pv=mip; << 663 G4double pv=mi;
673 for(G4int j=0; j<=lastKtot; j++) << 664 for(G4int j=0; j<=lastK; j++) // Calculate LogTab values
674 { 665 {
675 lastXtot[j]=CalcElTot(pv,ind); << 666 lastX[j]=CalcElTot(pv,ind);
676 if(j!=lastKtot) pv*=edlp; << 667 if(j!=lastK) pv*=edl;
677 } 668 }
678 i++; / 669 i++; // Make a new record to AMDB and position on it
679 vItot.push_back(lastItot); << 670 vI.push_back(lastI);
680 vMtot.push_back(lastMtot); << 671 vM.push_back(lastM);
681 vKtot.push_back(lastKtot); << 672 vK.push_back(lastK);
682 vX->push_back(lastXtot); << 673 vX.push_back(lastX);
683 } 674 }
684 else // 675 else // The A value was found in AMDB
685 { 676 {
686 lastItot=vItot[i]; << 677 lastI=vI[i];
687 lastMtot=vMtot[i]; << 678 lastM=vM[i];
688 lastKtot=vKtot[i]; << 679 lastK=vK[i];
689 lastXtot=(*vX)[i]; << 680 lastX=vX[i];
690 G4int nextK=lastKtot+1; << 681 G4int nextK=lastK+1;
691 G4double lpM=lastMtot+lpi; << 682 G4double lpM=lastM+lpi;
692 if(lp>lpM && lastKtot<nlp) << 683 if(lp>lpM && lastK<nlp) // LogTab must be updated
693 { 684 {
694 lastKtot = static_cast<int>((lp-lp << 685 lastK = static_cast<int>((lp-lpi)/dl)+1; // MaxBin to be initialized in LogTab
695 if(lastKtot>nlp) << 686 if(lastK>nlp)
696 { 687 {
697 lastKtot=nlp; << 688 lastK=nlp;
698 lastMtot=lpa-lpi; << 689 lastM=lpa-lpi;
699 } 690 }
700 else lastMtot = lastKtot*dlp; << 691 else lastM = lastK*dl; // Calculate max initialized ln(p)-lpi for LogTab
701 G4double pv=G4Exp(lpM); // m << 692 G4double pv=std::exp(lpM); // momentum of the last calculated beam
702 for(G4int j=nextK; j<=lastKtot; j+ << 693 for(G4int j=nextK; j<=lastK; j++)// Calculate LogTab values
703 { 694 {
704 pv*=edlp; << 695 pv*=edl;
705 lastXtot[j]=CalcElTot(pv,ind); << 696 lastX[j]=CalcElTot(pv,ind);
706 } 697 }
707 } // End of LogTab update 698 } // End of LogTab update
708 if(lastKtot>=nextK) << 699 if(lastK>=nextK) // The AMDB was apdated
709 { 700 {
710 vMtot[i]=lastMtot; << 701 vM[i]=lastM;
711 vKtot[i]=lastKtot; << 702 vK[i]=lastK;
712 } 703 }
713 } 704 }
714 // Now one can use tabeles to calculate th 705 // Now one can use tabeles to calculate the value
715 G4double dlpp=lp-lpi; << 706 G4double dlp=lp-lpi; // Shifted log(p) value
716 G4int n=static_cast<int>(dlpp/dlp); << 707 G4int n=static_cast<int>(dlp/dl); // Low edge number of the bin
717 G4double d=dlpp-n*dlp; << 708 G4double d=dlp-n*dl; // Log shift
718 G4double e=lastXtot[n].first; << 709 G4double e=lastX[n].first; // E-Base
719 lastRtot.first=e+d*(lastXtot[n+1].first-e) << 710 lastR.first=e+d*(lastX[n+1].first-e)/dl; // E-Result
720 if(lastRtot.first<0.) lastRtot.first = 0. << 711 if(lastR.first<0.) lastR.first = 0.;
721 G4double t=lastXtot[n].second; << 712 G4double t=lastX[n].second; // T-Base
722 lastRtot.second=t+d*(lastXtot[n+1].second- << 713 lastR.second=t+d*(lastX[n+1].second-t)/dl; // T-Result
723 if(lastRtot.second<0.) lastRtot.second= 0. << 714 if(lastR.second<0.) lastR.second= 0.;
724 if(lastRtot.first>lastRtot.second) lastRto << 715 if(lastR.first>lastR.second) lastR.first = lastR.second;
725 return lastRtot; << 716 return lastR;
726 } // End of FetchElTot 717 } // End of FetchElTot
727 718
728 // (Mean Elastic and Mean Total) Cross-Section 719 // (Mean Elastic and Mean Total) Cross-Sections (mb) for PDG+(Z,N) at P=p[GeV/c]
729 std::pair<G4double,G4double> G4QuasiElRatios:: 720 std::pair<G4double,G4double> G4QuasiElRatios::GetElTot(G4double pIU, G4int hPDG,
730 721 G4int Z, G4int N)
731 { 722 {
732 G4double pGeV=pIU/gigaelectronvolt; 723 G4double pGeV=pIU/gigaelectronvolt;
733 if(Z<1 && N<1) 724 if(Z<1 && N<1)
734 { 725 {
735 G4cout<<"-Warning-G4QuasiElRatio::GetE 726 G4cout<<"-Warning-G4QuasiElRatio::GetElTot:Z="<<Z<<",N="<<N<<", return zero"<<G4endl;
736 return std::make_pair(0.,0.); 727 return std::make_pair(0.,0.);
737 } 728 }
738 std::pair<G4double,G4double> hp=FetchElTot 729 std::pair<G4double,G4double> hp=FetchElTot(pGeV, hPDG, true);
739 std::pair<G4double,G4double> hn=FetchElTot 730 std::pair<G4double,G4double> hn=FetchElTot(pGeV, hPDG, false);
740 G4double A=(Z+N)/millibarn; 731 G4double A=(Z+N)/millibarn; // To make the result in independent units(IU)
741 return std::make_pair((Z*hp.first+N*hn.fir 732 return std::make_pair((Z*hp.first+N*hn.first)/A,(Z*hp.second+N*hn.second)/A);
742 } // End of GetElTot 733 } // End of GetElTot
743 734
744 // (Mean Elastic and Mean Total) Cross-Section 735 // (Mean Elastic and Mean Total) Cross-Sections (mb) for PDG+(Z,N) at P=p[GeV/c]
745 std::pair<G4double,G4double> G4QuasiElRatios:: 736 std::pair<G4double,G4double> G4QuasiElRatios::GetChExFactor(G4double pIU, G4int hPDG,
746 737 G4int Z, G4int N)
747 { 738 {
748 G4double pGeV=pIU/gigaelectronvolt; 739 G4double pGeV=pIU/gigaelectronvolt;
749 G4double resP=0.; 740 G4double resP=0.;
750 G4double resN=0.; 741 G4double resN=0.;
751 if(Z<1 && N<1) 742 if(Z<1 && N<1)
752 { 743 {
753 G4cout<<"-Warning-G4QuasiElRatio::GetC 744 G4cout<<"-Warning-G4QuasiElRatio::GetChExF:Z="<<Z<<",N="<<N<<", return zero"<<G4endl;
754 return std::make_pair(resP,resN); 745 return std::make_pair(resP,resN);
755 } 746 }
756 G4double A=Z+N; 747 G4double A=Z+N;
757 G4double pf=0.; 748 G4double pf=0.; // Possibility to interact with a proton
758 G4double nf=0.; 749 G4double nf=0.; // Possibility to interact with a neutron
759 if (hPDG==-211||hPDG==-321||hPDG==3112|| 750 if (hPDG==-211||hPDG==-321||hPDG==3112||hPDG==3212||hPDG==3312) pf=Z/(A+N);
760 else if(hPDG==211||hPDG==321||hPDG==3222|| 751 else if(hPDG==211||hPDG==321||hPDG==3222||hPDG==3212||hPDG==3322) nf=N/(A+Z);
761 else if(hPDG==-311||hPDG==311||hPDG==130|| 752 else if(hPDG==-311||hPDG==311||hPDG==130||hPDG==310)
762 { 753 {
763 G4double dA=A+A; 754 G4double dA=A+A;
764 pf=Z/(dA+N+N); 755 pf=Z/(dA+N+N);
765 nf=N/(dA+Z+Z); 756 nf=N/(dA+Z+Z);
766 } 757 }
767 G4double mult=1.; // Factor of increasing 758 G4double mult=1.; // Factor of increasing multiplicity ( ? @@)
768 if(pGeV>.5) 759 if(pGeV>.5)
769 { 760 {
770 mult=1./(1.+G4Log(pGeV+pGeV))/pGeV; << 761 mult=1./(1.+std::log(pGeV+pGeV))/pGeV;
771 if(mult>1.) mult=1.; 762 if(mult>1.) mult=1.;
772 } 763 }
773 if(pf) 764 if(pf)
774 { 765 {
775 std::pair<G4double,G4double> hp=FetchE 766 std::pair<G4double,G4double> hp=FetchElTot(pGeV, hPDG, true);
776 resP=pf*(hp.second/hp.first-1.)*mult; 767 resP=pf*(hp.second/hp.first-1.)*mult;
777 } 768 }
778 if(nf) 769 if(nf)
779 { 770 {
780 std::pair<G4double,G4double> hn=FetchE 771 std::pair<G4double,G4double> hn=FetchElTot(pGeV, hPDG, false);
781 resN=nf*(hn.second/hn.first-1.)*mult; 772 resN=nf*(hn.second/hn.first-1.)*mult;
782 } 773 }
783 return std::make_pair(resP,resN); 774 return std::make_pair(resP,resN);
784 } // End of GetChExFactor 775 } // End of GetChExFactor
785 776
786 // scatter (pPDG,p4M) on a virtual nucleon (NP 777 // scatter (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M)
787 // if(newN4M.e()==0.) - below threshold, XS=0, 778 // if(newN4M.e()==0.) - below threshold, XS=0, no scattering of the progectile happened
788 std::pair<G4LorentzVector,G4LorentzVector> G4Q 779 std::pair<G4LorentzVector,G4LorentzVector> G4QuasiElRatios::Scatter(G4int NPDG,
789 780 G4LorentzVector N4M, G4int pPDG, G4LorentzVector p4M)
790 { << 781 {
791 static const G4double mNeut= G4Neutron::Ne 782 static const G4double mNeut= G4Neutron::Neutron()->GetPDGMass();
792 static const G4double mProt= G4Proton::Pro 783 static const G4double mProt= G4Proton::Proton()->GetPDGMass();
793 static const G4double mDeut= G4Deuteron::D 784 static const G4double mDeut= G4Deuteron::Deuteron()->GetPDGMass();
794 static const G4double mTrit= G4Triton::Tri 785 static const G4double mTrit= G4Triton::Triton()->GetPDGMass();
795 static const G4double mHel3= G4He3::He3()- 786 static const G4double mHel3= G4He3::He3()->GetPDGMass();
796 static const G4double mAlph= G4Alpha::Alph 787 static const G4double mAlph= G4Alpha::Alpha()->GetPDGMass();
797 788
798 G4LorentzVector pr4M=p4M/megaelectronvolt; 789 G4LorentzVector pr4M=p4M/megaelectronvolt; // Convert 4-momenta in MeV (keep p4M)
799 N4M/=megaelectronvolt; 790 N4M/=megaelectronvolt;
800 G4LorentzVector tot4M=N4M+p4M; 791 G4LorentzVector tot4M=N4M+p4M;
801 G4double mT=mNeut; 792 G4double mT=mNeut;
802 G4int Z=0; 793 G4int Z=0;
803 G4int N=1; 794 G4int N=1;
804 if(NPDG==2212||NPDG==90001000) 795 if(NPDG==2212||NPDG==90001000)
805 { 796 {
806 mT=mProt; 797 mT=mProt;
807 Z=1; 798 Z=1;
808 N=0; 799 N=0;
809 } 800 }
810 else if(NPDG==90001001) 801 else if(NPDG==90001001)
811 { 802 {
812 mT=mDeut; 803 mT=mDeut;
813 Z=1; 804 Z=1;
814 N=1; 805 N=1;
815 } 806 }
816 else if(NPDG==90002001) 807 else if(NPDG==90002001)
817 { 808 {
818 mT=mHel3; 809 mT=mHel3;
819 Z=2; 810 Z=2;
820 N=1; 811 N=1;
821 } 812 }
822 else if(NPDG==90001002) 813 else if(NPDG==90001002)
823 { 814 {
824 mT=mTrit; 815 mT=mTrit;
825 Z=1; 816 Z=1;
826 N=2; 817 N=2;
827 } 818 }
828 else if(NPDG==90002002) 819 else if(NPDG==90002002)
829 { 820 {
830 mT=mAlph; 821 mT=mAlph;
831 Z=2; 822 Z=2;
832 N=2; 823 N=2;
833 } 824 }
834 else if(NPDG!=2112&&NPDG!=90000001) 825 else if(NPDG!=2112&&NPDG!=90000001)
835 { 826 {
836 G4cout<<"Error:G4QuasiElRatios::Scatte 827 G4cout<<"Error:G4QuasiElRatios::Scatter:NPDG="<<NPDG<<" is not 2212 or 2112"<<G4endl;
837 G4Exception("G4QuasiElRatios::Scatter: 828 G4Exception("G4QuasiElRatios::Scatter:","21",FatalException,"QEcomplain");
838 //return std::make_pair(G4LorentzVecto 829 //return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M);// Use this if not exception
839 } 830 }
840 G4double mT2=mT*mT; 831 G4double mT2=mT*mT;
841 G4double mP2=pr4M.m2(); 832 G4double mP2=pr4M.m2();
842 G4double E=(tot4M.m2()-mT2-mP2)/(mT+mT); 833 G4double E=(tot4M.m2()-mT2-mP2)/(mT+mT);
843 G4double E2=E*E; 834 G4double E2=E*E;
844 if(E<0. || E2<mP2) 835 if(E<0. || E2<mP2)
845 { 836 {
846 return std::make_pair(G4LorentzVector( 837 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
847 } 838 }
848 G4double P=std::sqrt(E2-mP2); 839 G4double P=std::sqrt(E2-mP2); // Momentum in pseudo laboratory system
849 // @@ Temporary NN t-dependence for all ha 840 // @@ Temporary NN t-dependence for all hadrons
850 //if(pPDG>3400 || pPDG<-3400) G4cout<<"-Wa << 841 if(pPDG>3400 || pPDG<-3400) G4cout<<"-Warning-G4QE::Scatter: pPDG="<<pPDG<<G4endl;
851 G4int PDG=2212; 842 G4int PDG=2212; // *TMP* instead of pPDG
852 if(pPDG==2112||pPDG==-211||pPDG==-321) PDG 843 if(pPDG==2112||pPDG==-211||pPDG==-321) PDG=2112; // *TMP* instead of pPDG
853 if(!Z && N==1) // Change f 844 if(!Z && N==1) // Change for Quasi-Elastic on neutron
854 { 845 {
855 Z=1; 846 Z=1;
856 N=0; 847 N=0;
857 if (PDG==2212) PDG=2112; 848 if (PDG==2212) PDG=2112;
858 else if(PDG==2112) PDG=2212; 849 else if(PDG==2112) PDG=2212;
859 } 850 }
860 G4double xSec=0.; / 851 G4double xSec=0.; // Prototype of Recalculated Cross Section *TMP*
861 if(PDG==2212) xSec=PCSmanager->GetChipsCro 852 if(PDG==2212) xSec=PCSmanager->GetChipsCrossSection(P, Z, N, PDG); // P CrossSect *TMP*
862 else xSec=NCSmanager->GetChipsCro 853 else xSec=NCSmanager->GetChipsCrossSection(P, Z, N, PDG); // N CrossSect *TMP*
863 // @@ check a possibility to separate p, n 854 // @@ check a possibility to separate p, n, or alpha (!)
864 if(xSec <= 0.) 855 if(xSec <= 0.) // The cross-section iz 0 -> Do Nothing
865 { 856 {
866 return std::make_pair(G4LorentzVector( 857 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); //Do Nothing Action
867 } 858 }
868 G4double mint=0.; / 859 G4double mint=0.; // Prototype of functional rand -t (MeV^2) *TMP*
869 if(PDG==2212) mint=PCSmanager->GetExchange 860 if(PDG==2212) mint=PCSmanager->GetExchangeT(Z,N,PDG);// P functional rand -t(MeV^2) *TMP*
870 else mint=NCSmanager->GetExchange 861 else mint=NCSmanager->GetExchangeT(Z,N,PDG);// N functional rand -t(MeV^2) *TMP*
871 G4double maxt=0.; 862 G4double maxt=0.; // Prototype of max possible -t
872 if(PDG==2212) maxt=PCSmanager->GetHMaxT(); 863 if(PDG==2212) maxt=PCSmanager->GetHMaxT(); // max possible -t
873 else maxt=NCSmanager->GetHMaxT(); 864 else maxt=NCSmanager->GetHMaxT(); // max possible -t
874 G4double cost=1.-(mint+mint)/maxt; // cos( 865 G4double cost=1.-(mint+mint)/maxt; // cos(theta) in CMS
875 if(cost>1. || cost<-1. || !(cost>-1. || co 866 if(cost>1. || cost<-1. || !(cost>-1. || cost<=1.))
876 { 867 {
877 if (cost>1.) cost=1.; 868 if (cost>1.) cost=1.;
878 else if(cost<-1.) cost=-1.; 869 else if(cost<-1.) cost=-1.;
879 else 870 else
880 { 871 {
881 G4double tm=0.; 872 G4double tm=0.;
882 if(PDG==2212) tm=PCSmanager->GetHM 873 if(PDG==2212) tm=PCSmanager->GetHMaxT();
883 else tm=NCSmanager->GetHM 874 else tm=NCSmanager->GetHMaxT();
884 G4cerr<<"G4QuasiFreeRatio::Scat:*N 875 G4cerr<<"G4QuasiFreeRatio::Scat:*NAN* cost="<<cost<<",-t="<<mint<<",tm="<<tm<<G4endl;
885 return std::make_pair(G4LorentzVec 876 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
886 } 877 }
887 } 878 }
888 G4LorentzVector reco4M=G4LorentzVector(0., 879 G4LorentzVector reco4M=G4LorentzVector(0.,0.,0.,mT); // 4mom of the recoil nucleon
889 G4LorentzVector dir4M=tot4M-G4LorentzVecto 880 G4LorentzVector dir4M=tot4M-G4LorentzVector(0.,0.,0.,(tot4M.e()-mT)*.01);
890 if(!RelDecayIn2(tot4M, pr4M, reco4M, dir4M 881 if(!RelDecayIn2(tot4M, pr4M, reco4M, dir4M, cost, cost))
891 { 882 {
892 G4cerr<<"G4QFR::Scat:t="<<tot4M<<tot4M 883 G4cerr<<"G4QFR::Scat:t="<<tot4M<<tot4M.m()<<",mT="<<mT<<",mP="<<std::sqrt(mP2)<<G4endl;
893 //G4Exception("G4QFR::Scat:","009",Fat 884 //G4Exception("G4QFR::Scat:","009",FatalException,"Decay of ElasticComp");
894 return std::make_pair(G4LorentzVector( 885 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
895 } 886 }
896 return std::make_pair(reco4M*megaelectronv 887 return std::make_pair(reco4M*megaelectronvolt,pr4M*megaelectronvolt); // Result
897 } // End of Scatter 888 } // End of Scatter
898 889
899 // scatter (pPDG,p4M) on a virtual nucleon (NP 890 // scatter (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M)
900 // if(newN4M.e()==0.) - below threshold, XS=0, 891 // if(newN4M.e()==0.) - below threshold, XS=0, no scattering of the progectile happened
901 // User should himself change the charge (PDG) 892 // User should himself change the charge (PDG) (e.g. pn->np, pi+n->pi0p, pi-p->pi0n etc.)
902 //AR-Jul2020: No need to change this method in <<
903 // charmed and bottom mesons, becau <<
904 std::pair<G4LorentzVector,G4LorentzVector> G4Q 893 std::pair<G4LorentzVector,G4LorentzVector> G4QuasiElRatios::ChExer(G4int NPDG,
905 894 G4LorentzVector N4M, G4int pPDG, G4LorentzVector p4M)
906 { 895 {
907 static const G4double mNeut= G4Neutron::Ne 896 static const G4double mNeut= G4Neutron::Neutron()->GetPDGMass();
908 static const G4double mProt= G4Proton::Pro 897 static const G4double mProt= G4Proton::Proton()->GetPDGMass();
909 G4LorentzVector pr4M=p4M/megaelectronvolt; 898 G4LorentzVector pr4M=p4M/megaelectronvolt; // Convert 4-momenta in MeV(keep p4M)
910 N4M/=megaelectronvolt; 899 N4M/=megaelectronvolt;
911 G4LorentzVector tot4M=N4M+p4M; 900 G4LorentzVector tot4M=N4M+p4M;
912 G4int Z=0; 901 G4int Z=0;
913 G4int N=1; 902 G4int N=1;
914 G4int sPDG=0; 903 G4int sPDG=0; // PDG code of the scattered hadron
915 G4double mS=0.; 904 G4double mS=0.; // proto of mass of scattered hadron
916 G4double mT=mProt; 905 G4double mT=mProt; // mass of the recoil nucleon
917 if(NPDG==2212) 906 if(NPDG==2212)
918 { 907 {
919 mT=mNeut; 908 mT=mNeut;
920 Z=1; 909 Z=1;
921 N=0; 910 N=0;
922 if(pPDG==-211) sPDG=111; 911 if(pPDG==-211) sPDG=111; // pi+ -> pi0
923 else if(pPDG==-321) 912 else if(pPDG==-321)
924 { 913 {
925 sPDG=310; 914 sPDG=310; // K+ -> K0S
926 if(G4UniformRand()>.5) sPDG=130; 915 if(G4UniformRand()>.5) sPDG=130; // K+ -> K0L
927 } 916 }
928 else if(pPDG==-311||pPDG==311||pPDG==1 917 else if(pPDG==-311||pPDG==311||pPDG==130||pPDG==310) sPDG=321; // K0 -> K+ (?)
929 else if(pPDG==3112) sPDG=3212; 918 else if(pPDG==3112) sPDG=3212; // Sigma- -> Sigma0
930 else if(pPDG==3212) sPDG=3222; 919 else if(pPDG==3212) sPDG=3222; // Sigma0 -> Sigma+
931 else if(pPDG==3312) sPDG=3322; 920 else if(pPDG==3312) sPDG=3322; // Xi- -> Xi0
932 } 921 }
933 else if(NPDG==2112) // Default 922 else if(NPDG==2112) // Default
934 { 923 {
935 if(pPDG==211) sPDG=111; 924 if(pPDG==211) sPDG=111; // pi+ -> pi0
936 else if(pPDG==321) 925 else if(pPDG==321)
937 { 926 {
938 sPDG=310; 927 sPDG=310; // K+ -> K0S
939 if(G4UniformRand()>.5) sPDG=130; 928 if(G4UniformRand()>.5) sPDG=130; // K+ -> K0L
940 } 929 }
941 else if(pPDG==-311||pPDG==311||pPDG==1 930 else if(pPDG==-311||pPDG==311||pPDG==130||pPDG==310) sPDG=-321; // K0 -> K- (?)
942 else if(pPDG==3222) sPDG=3212; 931 else if(pPDG==3222) sPDG=3212; // Sigma+ -> Sigma0
943 else if(pPDG==3212) sPDG=3112; 932 else if(pPDG==3212) sPDG=3112; // Sigma0 -> Sigma-
944 else if(pPDG==3322) sPDG=3312; 933 else if(pPDG==3322) sPDG=3312; // Xi0 -> Xi-
945 } 934 }
946 else 935 else
947 { 936 {
948 G4cout<<"Error:G4QuasiElRatios::ChExer 937 G4cout<<"Error:G4QuasiElRatios::ChExer: NPDG="<<NPDG<<" is not 2212 or 2112"<<G4endl;
949 G4Exception("G4QuasiElRatios::ChExer:" 938 G4Exception("G4QuasiElRatios::ChExer:","21",FatalException,"QE complain");
950 //return std::make_pair(G4LorentzVecto 939 //return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M);// Use this if not exception
951 } 940 }
952 if(sPDG) mS=mNeut; 941 if(sPDG) mS=mNeut;
953 else 942 else
954 { 943 {
955 G4cout<<"Error:G4QuasiElRatios::ChExer 944 G4cout<<"Error:G4QuasiElRatios::ChExer: BAD pPDG="<<pPDG<<", NPDG="<<NPDG<<G4endl;
956 G4Exception("G4QuasiElRatios::ChExer:" 945 G4Exception("G4QuasiElRatios::ChExer:","21",FatalException,"QE complain");
957 //return std::make_pair(G4LorentzVecto 946 //return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M);// Use this if not exception
958 } 947 }
959 G4double mT2=mT*mT; 948 G4double mT2=mT*mT;
960 G4double mS2=mS*mS; 949 G4double mS2=mS*mS;
961 G4double E=(tot4M.m2()-mT2-mS2)/(mT+mT); 950 G4double E=(tot4M.m2()-mT2-mS2)/(mT+mT);
962 G4double E2=E*E; 951 G4double E2=E*E;
963 if(E<0. || E2<mS2) 952 if(E<0. || E2<mS2)
964 { 953 {
965 return std::make_pair(G4LorentzVector( 954 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
966 } 955 }
967 G4double P=std::sqrt(E2-mS2); 956 G4double P=std::sqrt(E2-mS2); // Momentum in pseudo laboratory system
968 // @@ Temporary NN t-dependence for all ha 957 // @@ Temporary NN t-dependence for all hadrons
969 G4int PDG=2212; 958 G4int PDG=2212; // *TMP* instead of pPDG
970 if(pPDG==2112||pPDG==-211||pPDG==-321) PDG 959 if(pPDG==2112||pPDG==-211||pPDG==-321) PDG=2112; // *TMP* instead of pPDG
971 if(!Z && N==1) // Change f 960 if(!Z && N==1) // Change for Quasi-Elastic on neutron
972 { 961 {
973 Z=1; 962 Z=1;
974 N=0; 963 N=0;
975 if (PDG==2212) PDG=2112; 964 if (PDG==2212) PDG=2112;
976 else if(PDG==2112) PDG=2212; 965 else if(PDG==2112) PDG=2212;
977 } 966 }
978 G4double xSec=0.; / 967 G4double xSec=0.; // Prototype of Recalculated Cross Section *TMP*
979 if(PDG==2212) xSec=PCSmanager->GetChipsCro 968 if(PDG==2212) xSec=PCSmanager->GetChipsCrossSection(P, Z, N, PDG); // P CrossSect *TMP*
980 else xSec=NCSmanager->GetChipsCro 969 else xSec=NCSmanager->GetChipsCrossSection(P, Z, N, PDG); // N CrossSect *TMP*
981 // @@ check a possibility to separate p, n 970 // @@ check a possibility to separate p, n, or alpha (!)
982 if(xSec <= 0.) // The cross-section iz 0 - 971 if(xSec <= 0.) // The cross-section iz 0 -> Do Nothing
983 { 972 {
984 return std::make_pair(G4LorentzVector( 973 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); //Do Nothing Action
985 } 974 }
986 G4double mint=0.; / 975 G4double mint=0.; // Prototype of functional rand -t (MeV^2) *TMP*
987 if(PDG==2212) mint=PCSmanager->GetExchange 976 if(PDG==2212) mint=PCSmanager->GetExchangeT(Z,N,PDG);// P functional rand -t(MeV^2) *TMP*
988 else mint=NCSmanager->GetExchange 977 else mint=NCSmanager->GetExchangeT(Z,N,PDG);// N functional rand -t(MeV^2) *TMP*
989 G4double maxt=0.; 978 G4double maxt=0.; // Prototype of max possible -t
990 if(PDG==2212) maxt=PCSmanager->GetHMaxT(); 979 if(PDG==2212) maxt=PCSmanager->GetHMaxT(); // max possible -t
991 else maxt=NCSmanager->GetHMaxT(); 980 else maxt=NCSmanager->GetHMaxT(); // max possible -t
992 G4double cost=1.-mint/maxt; 981 G4double cost=1.-mint/maxt; // cos(theta) in CMS
993 if(cost>1. || cost<-1. || !(cost>-1. || co 982 if(cost>1. || cost<-1. || !(cost>-1. || cost<=1.))
994 { 983 {
995 if (cost>1.) cost=1.; 984 if (cost>1.) cost=1.;
996 else if(cost<-1.) cost=-1.; 985 else if(cost<-1.) cost=-1.;
997 else 986 else
998 { 987 {
999 G4cerr<<"G4QuasiFreeRatio::ChExer: 988 G4cerr<<"G4QuasiFreeRatio::ChExer:*NAN* c="<<cost<<",t="<<mint<<",tm="<<maxt<<G4endl;
1000 return std::make_pair(G4LorentzVe 989 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
1001 } 990 }
1002 } 991 }
1003 G4LorentzVector reco4M=G4LorentzVector(0. 992 G4LorentzVector reco4M=G4LorentzVector(0.,0.,0.,mT); // 4mom of the recoil nucleon
1004 pr4M=G4LorentzVector(0.,0.,0.,mS); 993 pr4M=G4LorentzVector(0.,0.,0.,mS); // 4mom of the scattered hadron
1005 G4LorentzVector dir4M=tot4M-G4LorentzVect 994 G4LorentzVector dir4M=tot4M-G4LorentzVector(0.,0.,0.,(tot4M.e()-mT)*.01);
1006 if(!RelDecayIn2(tot4M, pr4M, reco4M, dir4 995 if(!RelDecayIn2(tot4M, pr4M, reco4M, dir4M, cost, cost))
1007 { 996 {
1008 G4cerr<<"G4QFR::ChEx:t="<<tot4M<<tot4 997 G4cerr<<"G4QFR::ChEx:t="<<tot4M<<tot4M.m()<<",mT="<<mT<<",mP="<<mS<<G4endl;
1009 //G4Exception("G4QFR::ChExer:","009", 998 //G4Exception("G4QFR::ChExer:","009",FatalException,"Decay of ElasticComp");
1010 return std::make_pair(G4LorentzVector 999 return std::make_pair(G4LorentzVector(0.,0.,0.,0.),p4M); // Do Nothing Action
1011 } 1000 }
1012 return std::make_pair(reco4M*megaelectron 1001 return std::make_pair(reco4M*megaelectronvolt,pr4M*megaelectronvolt); // Result
1013 } // End of ChExer 1002 } // End of ChExer
1014 1003
1015 // Calculate ChEx/El ratio (p is in independe 1004 // Calculate ChEx/El ratio (p is in independent units, (Z,N) is target, pPDG is projectile)
1016 G4double G4QuasiElRatios::ChExElCoef(G4double 1005 G4double G4QuasiElRatios::ChExElCoef(G4double p, G4int Z, G4int N, G4int pPDG)
1017 { 1006 {
1018 <<
1019 p/=MeV; // 1007 p/=MeV; // Converted from independent units
1020 G4double A=Z+N; 1008 G4double A=Z+N;
1021 if(A<1.5) return 0.; 1009 if(A<1.5) return 0.;
1022 G4double Cex=0.; << 1010 G4double C=0.;
1023 if (pPDG==2212) Cex=N/(A+Z); << 1011 if (pPDG==2212) C=N/(A+Z);
1024 else if(pPDG==2112) Cex=Z/(A+N); << 1012 else if(pPDG==2112) C=Z/(A+N);
1025 else G4cout<<"*Warning*G4CohChrgExchange: 1013 else G4cout<<"*Warning*G4CohChrgExchange::ChExElCoef: wrong PDG="<<pPDG<<G4endl;
1026 Cex*=Cex; // Cohe << 1014 C*=C; // Coherent processes squares the amplitude
1027 // @@ This is true only for nucleons: oth 1015 // @@ This is true only for nucleons: other projectiles must be treated differently
1028 G4double sp=std::sqrt(p); 1016 G4double sp=std::sqrt(p);
1029 G4double p2=p*p; 1017 G4double p2=p*p;
1030 G4double p4=p2*p2; 1018 G4double p4=p2*p2;
1031 G4double dl1=G4Log(p)-5.; << 1019 G4double dl1=std::log(p)-5.;
1032 G4double T=(6.75+.14*dl1*dl1+13./p)/(1.+. 1020 G4double T=(6.75+.14*dl1*dl1+13./p)/(1.+.14/p4)+.6/(p4+.00013);
1033 G4double U=(6.25+8.33e-5/p4/p)*(p*sp+.34) 1021 G4double U=(6.25+8.33e-5/p4/p)*(p*sp+.34)/p2/p;
1034 G4double R=U/T; 1022 G4double R=U/T;
1035 return Cex*R*R; << 1023 return C*R*R;
1036 } 1024 }
1037 1025
1038 // Decay of Hadron In2Particles f&s, f is in 1026 // Decay of Hadron In2Particles f&s, f is in respect to the direction of HadronMomentumDir
1039 G4bool G4QuasiElRatios::RelDecayIn2(G4Lorentz 1027 G4bool G4QuasiElRatios::RelDecayIn2(G4LorentzVector& theMomentum, G4LorentzVector& f4Mom, G4LorentzVector& s4Mom,
1040 G4Lorent 1028 G4LorentzVector& dir, G4double maxCost, G4double minCost)
1041 { 1029 {
1042 G4double fM2 = f4Mom.m2(); 1030 G4double fM2 = f4Mom.m2();
1043 G4double fM = std::sqrt(fM2); 1031 G4double fM = std::sqrt(fM2); // Mass of the 1st Hadron
1044 G4double sM2 = s4Mom.m2(); 1032 G4double sM2 = s4Mom.m2();
1045 G4double sM = std::sqrt(sM2); 1033 G4double sM = std::sqrt(sM2); // Mass of the 2nd Hadron
1046 G4double iM2 = theMomentum.m2(); 1034 G4double iM2 = theMomentum.m2();
1047 G4double iM = std::sqrt(iM2); 1035 G4double iM = std::sqrt(iM2); // Mass of the decaying hadron
1048 G4double vP = theMomentum.rho(); // 1036 G4double vP = theMomentum.rho(); // Momentum of the decaying hadron
1049 G4double dE = theMomentum.e(); // 1037 G4double dE = theMomentum.e(); // Energy of the decaying hadron
1050 if(dE<vP) 1038 if(dE<vP)
1051 { 1039 {
1052 G4cerr<<"***G4QHad::RelDecIn2: Tachio 1040 G4cerr<<"***G4QHad::RelDecIn2: Tachionic 4-mom="<<theMomentum<<", E-p="<<dE-vP<<G4endl;
1053 G4double accuracy=.000001*vP; 1041 G4double accuracy=.000001*vP;
1054 G4double emodif=std::fabs(dE-vP); 1042 G4double emodif=std::fabs(dE-vP);
1055 //if(emodif<accuracy) 1043 //if(emodif<accuracy)
1056 //{ 1044 //{
1057 G4cerr<<"G4QHadron::RelDecIn2: *Boost 1045 G4cerr<<"G4QHadron::RelDecIn2: *Boost* E-p shift is corrected to "<<emodif<<G4endl;
1058 theMomentum.setE(vP+emodif+.01*accura 1046 theMomentum.setE(vP+emodif+.01*accuracy);
1059 //} 1047 //}
1060 } 1048 }
1061 G4ThreeVector ltb = theMomentum.boostVect 1049 G4ThreeVector ltb = theMomentum.boostVector();// Boost vector for backward Lorentz Trans.
1062 G4ThreeVector ltf = -ltb; // 1050 G4ThreeVector ltf = -ltb; // Boost vector for forward Lorentz Trans.
1063 G4LorentzVector cdir = dir; // 1051 G4LorentzVector cdir = dir; // A copy to make a transformation to CMS
1064 cdir.boost(ltf); // 1052 cdir.boost(ltf); // Direction transpormed to CMS of the Momentum
1065 G4ThreeVector vdir = cdir.vect(); // 1053 G4ThreeVector vdir = cdir.vect(); // 3-Vector of the direction-particle
1066 G4ThreeVector vx(0.,0.,1.); // 1054 G4ThreeVector vx(0.,0.,1.); // Ort in the direction of the reference particle
1067 G4ThreeVector vy(0.,1.,0.); // 1055 G4ThreeVector vy(0.,1.,0.); // First ort orthogonal to the direction
1068 G4ThreeVector vz(1.,0.,0.); // 1056 G4ThreeVector vz(1.,0.,0.); // Second ort orthoganal to the direction
1069 if(vdir.mag2() > 0.) // 1057 if(vdir.mag2() > 0.) // the refference particle isn't at rest in CMS
1070 { 1058 {
1071 vx = vdir.unit(); 1059 vx = vdir.unit(); // Ort in the direction of the reference particle
1072 G4ThreeVector vv= vx.orthogonal(); 1060 G4ThreeVector vv= vx.orthogonal(); // Not normed orthogonal vector (!)
1073 vy = vv.unit(); 1061 vy = vv.unit(); // First ort orthogonal to the direction
1074 vz = vx.cross(vy); 1062 vz = vx.cross(vy); // Second ort orthoganal to the direction
1075 } 1063 }
1076 if(maxCost> 1.) maxCost= 1.; 1064 if(maxCost> 1.) maxCost= 1.;
1077 if(minCost<-1.) minCost=-1.; 1065 if(minCost<-1.) minCost=-1.;
1078 if(maxCost<-1.) maxCost=-1.; 1066 if(maxCost<-1.) maxCost=-1.;
1079 if(minCost> 1.) minCost= 1.; 1067 if(minCost> 1.) minCost= 1.;
1080 if(minCost> maxCost) minCost=maxCost; 1068 if(minCost> maxCost) minCost=maxCost;
1081 if(std::fabs(iM-fM-sM)<.00000001) 1069 if(std::fabs(iM-fM-sM)<.00000001)
1082 { 1070 {
1083 G4double fR=fM/iM; 1071 G4double fR=fM/iM;
1084 G4double sR=sM/iM; 1072 G4double sR=sM/iM;
1085 f4Mom=fR*theMomentum; 1073 f4Mom=fR*theMomentum;
1086 s4Mom=sR*theMomentum; 1074 s4Mom=sR*theMomentum;
1087 return true; 1075 return true;
1088 } 1076 }
1089 else if (iM+.001<fM+sM || iM==0.) 1077 else if (iM+.001<fM+sM || iM==0.)
1090 {//@@ Later on make a quark content check 1078 {//@@ Later on make a quark content check for the decay
1091 G4cerr<<"***G4QH::RelDecIn2: fM="<<fM 1079 G4cerr<<"***G4QH::RelDecIn2: fM="<<fM<<"+sM="<<sM<<">iM="<<iM<<",d="<<iM-fM-sM<<G4endl;
1092 return false; 1080 return false;
1093 } 1081 }
1094 G4double d2 = iM2-fM2-sM2; 1082 G4double d2 = iM2-fM2-sM2;
1095 G4double p2 = (d2*d2/4.-fM2*sM2)/iM2; 1083 G4double p2 = (d2*d2/4.-fM2*sM2)/iM2; // Decay momentum(^2) in CMS of Quasmon
1096 if(p2<0.) 1084 if(p2<0.)
1097 { 1085 {
1098 p2=0.; 1086 p2=0.;
1099 } 1087 }
1100 G4double p = std::sqrt(p2); 1088 G4double p = std::sqrt(p2);
1101 G4double ct = maxCost; 1089 G4double ct = maxCost;
1102 if(maxCost>minCost) 1090 if(maxCost>minCost)
1103 { 1091 {
1104 G4double dcost=maxCost-minCost; 1092 G4double dcost=maxCost-minCost;
1105 ct = minCost+dcost*G4UniformRand(); 1093 ct = minCost+dcost*G4UniformRand();
1106 } 1094 }
1107 G4double phi= twopi*G4UniformRand(); // 1095 G4double phi= twopi*G4UniformRand(); // @@ Change 360.*deg to M_TWOPI (?)
1108 G4double pss=0.; << 1096 G4double ps=0.;
1109 if(std::fabs(ct)<1.) pss = p * std::sqrt( << 1097 if(std::fabs(ct)<1.) ps = p * std::sqrt(1.-ct*ct);
1110 else 1098 else
1111 { 1099 {
1112 if(ct>1.) ct=1.; 1100 if(ct>1.) ct=1.;
1113 if(ct<-1.) ct=-1.; 1101 if(ct<-1.) ct=-1.;
1114 } 1102 }
1115 G4ThreeVector pVect=(pss*std::sin(phi))*v << 1103 G4ThreeVector pVect=(ps*std::sin(phi))*vz+(ps*std::cos(phi))*vy+p*ct*vx;
1116 1104
1117 f4Mom.setVect(pVect); 1105 f4Mom.setVect(pVect);
1118 f4Mom.setE(std::sqrt(fM2+p2)); 1106 f4Mom.setE(std::sqrt(fM2+p2));
1119 s4Mom.setVect((-1)*pVect); 1107 s4Mom.setVect((-1)*pVect);
1120 s4Mom.setE(std::sqrt(sM2+p2)); 1108 s4Mom.setE(std::sqrt(sM2+p2));
1121 1109
1122 if(f4Mom.e()+.001<f4Mom.rho())G4cerr<<"*G 1110 if(f4Mom.e()+.001<f4Mom.rho())G4cerr<<"*G4QH::RDIn2:*Boost* f4M="<<f4Mom<<",e-p="
1123 <<f4Mom.e()-f4Mom.rho()<<G4endl; 1111 <<f4Mom.e()-f4Mom.rho()<<G4endl;
1124 f4Mom.boost(ltb); 1112 f4Mom.boost(ltb); // Lor.Trans. of 1st hadron back to LS
1125 if(s4Mom.e()+.001<s4Mom.rho())G4cerr<<"*G 1113 if(s4Mom.e()+.001<s4Mom.rho())G4cerr<<"*G4QH::RDIn2:*Boost* s4M="<<s4Mom<<",e-p="
1126 <<s4Mom.e()-s4Mom.rho()<<G4endl; 1114 <<s4Mom.e()-s4Mom.rho()<<G4endl;
1127 s4Mom.boost(ltb); 1115 s4Mom.boost(ltb); // Lor.Trans. of 2nd hadron back to LS
1128 return true; 1116 return true;
1129 } // End of "RelDecayIn2" 1117 } // End of "RelDecayIn2"
1130 1118
1131 1119
1132 1120
1133 1121
1134 1122
1135 1123
1136 1124