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26 // 26 //
27 // The lust update: M.V. Kossov, CERN/ITEP(Mos 27 // The lust update: M.V. Kossov, CERN/ITEP(Moscow) 17-June-02
>> 28 // GEANT4 tag $Name: not supported by cvs2svn $
28 // 29 //
29 // ******************************************* 30 // ****************************************************************************************
30 // Short description: Cross-sections extracted 31 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
31 // Hyperon-nuclear interactions. Original aut 32 // Hyperon-nuclear interactions. Original author: M. Kossov
32 // ------------------------------------------- 33 // -------------------------------------------------------------------------------------
33 // 34 //
34 35
35 #include "G4ChipsHyperonInelasticXS.hh" 36 #include "G4ChipsHyperonInelasticXS.hh"
36 #include "G4SystemOfUnits.hh" 37 #include "G4SystemOfUnits.hh"
37 #include "G4DynamicParticle.hh" 38 #include "G4DynamicParticle.hh"
38 #include "G4ParticleDefinition.hh" 39 #include "G4ParticleDefinition.hh"
39 #include "G4Lambda.hh" 40 #include "G4Lambda.hh"
40 #include "G4SigmaPlus.hh" 41 #include "G4SigmaPlus.hh"
41 #include "G4SigmaMinus.hh" 42 #include "G4SigmaMinus.hh"
42 #include "G4SigmaZero.hh" 43 #include "G4SigmaZero.hh"
43 #include "G4XiMinus.hh" 44 #include "G4XiMinus.hh"
44 #include "G4XiZero.hh" 45 #include "G4XiZero.hh"
45 #include "G4OmegaMinus.hh" 46 #include "G4OmegaMinus.hh"
46 #include "G4Log.hh" <<
47 #include "G4Exp.hh" <<
48 47
49 // factory 48 // factory
50 #include "G4CrossSectionFactory.hh" 49 #include "G4CrossSectionFactory.hh"
51 // 50 //
52 G4_DECLARE_XS_FACTORY(G4ChipsHyperonInelasticX 51 G4_DECLARE_XS_FACTORY(G4ChipsHyperonInelasticXS);
53 52
54 G4ChipsHyperonInelasticXS::G4ChipsHyperonInela 53 G4ChipsHyperonInelasticXS::G4ChipsHyperonInelasticXS():G4VCrossSectionDataSet(Default_Name())
55 { 54 {
56 // Initialization of the 55 // Initialization of the
57 lastLEN=0; // Pointer to the lastArray of Lo 56 lastLEN=0; // Pointer to the lastArray of LowEn CS
58 lastHEN=0; // Pointer to the lastArray of Hi 57 lastHEN=0; // Pointer to the lastArray of HighEn CS
59 lastN=0; // The last N of calculated nucle 58 lastN=0; // The last N of calculated nucleus
60 lastZ=0; // The last Z of calculated nucle 59 lastZ=0; // The last Z of calculated nucleus
61 lastP=0.; // Last used in cross section Mom 60 lastP=0.; // Last used in cross section Momentum
62 lastTH=0.; // Last threshold momentum 61 lastTH=0.; // Last threshold momentum
63 lastCS=0.; // Last value of the Cross Sectio 62 lastCS=0.; // Last value of the Cross Section
64 lastI=0; // The last position in the DAMDB 63 lastI=0; // The last position in the DAMDB
65 LEN = new std::vector<G4double*>; 64 LEN = new std::vector<G4double*>;
66 HEN = new std::vector<G4double*>; 65 HEN = new std::vector<G4double*>;
67 } 66 }
68 67
69 G4ChipsHyperonInelasticXS::~G4ChipsHyperonInel 68 G4ChipsHyperonInelasticXS::~G4ChipsHyperonInelasticXS()
70 { 69 {
71 std::size_t lens=LEN->size(); << 70 G4int lens=LEN->size();
72 for(std::size_t i=0; i<lens; ++i) delete[] << 71 for(G4int i=0; i<lens; ++i) delete[] (*LEN)[i];
73 delete LEN; 72 delete LEN;
74 73
75 std::size_t hens=HEN->size(); << 74 G4int hens=HEN->size();
76 for(std::size_t i=0; i<hens; ++i) delete[] << 75 for(G4int i=0; i<hens; ++i) delete[] (*HEN)[i];
77 delete HEN; 76 delete HEN;
78 } 77 }
79 78
80 void G4ChipsHyperonInelasticXS::CrossSectionDe << 79 G4bool G4ChipsHyperonInelasticXS::IsIsoApplicable(const G4DynamicParticle* Pt, G4int, G4int,
81 { <<
82 outFile << "G4ChipsHyperonInelasticXS provid <<
83 << "section for hyperon nucleus scat <<
84 << "momentum. The cross section is c <<
85 << "CHIPS parameterization of cross <<
86 } <<
87 <<
88 G4bool G4ChipsHyperonInelasticXS::IsIsoApplica <<
89 const G4Element*, 80 const G4Element*,
90 const G4Material*) 81 const G4Material*)
91 { 82 {
92 return true; << 83 G4ParticleDefinition* particle = Pt->GetDefinition();
>> 84 if (particle == G4Lambda::Lambda())
>> 85 {
>> 86 return true;
>> 87 }
>> 88 else if(particle == G4SigmaPlus::SigmaPlus())
>> 89 {
>> 90 return true;
>> 91 }
>> 92 else if(particle == G4SigmaMinus::SigmaMinus())
>> 93 {
>> 94 return true;
>> 95 }
>> 96 else if(particle == G4SigmaZero::SigmaZero())
>> 97 {
>> 98 return true;
>> 99 }
>> 100 else if(particle == G4XiMinus::XiMinus())
>> 101 {
>> 102 return true;
>> 103 }
>> 104 else if(particle == G4XiZero::XiZero())
>> 105 {
>> 106 return true;
>> 107 }
>> 108 else if(particle == G4OmegaMinus::OmegaMinus())
>> 109 {
>> 110 return true;
>> 111 }
>> 112 return false;
93 } 113 }
94 114
95 // The main member function giving the collisi 115 // The main member function giving the collision cross section (P is in IU, CS is in mb)
96 // Make pMom in independent units ! (Now it is 116 // Make pMom in independent units ! (Now it is MeV)
97 G4double G4ChipsHyperonInelasticXS::GetIsoCros 117 G4double G4ChipsHyperonInelasticXS::GetIsoCrossSection(const G4DynamicParticle* Pt, G4int tgZ, G4int A,
98 const G4Isotope*, 118 const G4Isotope*,
99 const G4Element*, 119 const G4Element*,
100 const G4Material*) 120 const G4Material*)
101 { 121 {
102 G4double pMom=Pt->GetTotalMomentum(); 122 G4double pMom=Pt->GetTotalMomentum();
103 G4int tgN = A - tgZ; 123 G4int tgN = A - tgZ;
104 G4int pdg = Pt->GetDefinition()->GetPDGEncod 124 G4int pdg = Pt->GetDefinition()->GetPDGEncoding();
105 125
106 return GetChipsCrossSection(pMom, tgZ, tgN, 126 return GetChipsCrossSection(pMom, tgZ, tgN, pdg);
107 } 127 }
108 128
109 G4double G4ChipsHyperonInelasticXS::GetChipsCr 129 G4double G4ChipsHyperonInelasticXS::GetChipsCrossSection(G4double pMom, G4int tgZ, G4int tgN, G4int PDG)
110 { 130 {
>> 131 static G4int j; // A#0f Z/N-records already tested in AMDB
>> 132 static std::vector <G4int> colN; // Vector of N for calculated nuclei (isotops)
>> 133 static std::vector <G4int> colZ; // Vector of Z for calculated nuclei (isotops)
>> 134 static std::vector <G4double> colP; // Vector of last momenta for the reaction
>> 135 static std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
>> 136 static std::vector <G4double> colCS; // Vector of last cross sections for the reaction
>> 137 // ***---*** End of the mandatory Static Definitions of the Associative Memory ***---***
111 138
112 G4bool in=false; // By d 139 G4bool in=false; // By default the isotope must be found in the AMDB
113 if(tgN!=lastN || tgZ!=lastZ) // The 140 if(tgN!=lastN || tgZ!=lastZ) // The nucleus was not the last used isotope
114 { 141 {
115 in = false; // By d 142 in = false; // By default the isotope haven't be found in AMDB
116 lastP = 0.; // New 143 lastP = 0.; // New momentum history (nothing to compare with)
117 lastN = tgN; // The 144 lastN = tgN; // The last N of the calculated nucleus
118 lastZ = tgZ; // The 145 lastZ = tgZ; // The last Z of the calculated nucleus
119 lastI = (G4int)colN.size(); // Size << 146 lastI = colN.size(); // Size of the Associative Memory DB in the heap
120 j = 0; // A#0f 147 j = 0; // A#0f records found in DB for this projectile
121 148
122 if(lastI) for(G4int i=0; i<lastI; ++i) // << 149 if(lastI) for(G4int i=0; i<lastI; i++) // AMDB exists, try to find the (Z,N) isotope
123 { 150 {
124 if(colN[i]==tgN && colZ[i]==tgZ) // Try 151 if(colN[i]==tgN && colZ[i]==tgZ) // Try the record "i" in the AMDB
125 { 152 {
126 lastI=i; // Reme 153 lastI=i; // Remember the index for future fast/last use
127 lastTH =colTH[i]; // The 154 lastTH =colTH[i]; // The last THreshold (A-dependent)
128 155
129 if(pMom<=lastTH) 156 if(pMom<=lastTH)
130 { 157 {
131 return 0.; // Ener 158 return 0.; // Energy is below the Threshold value
132 } 159 }
133 lastP =colP [i]; // Last 160 lastP =colP [i]; // Last Momentum (A-dependent)
134 lastCS =colCS[i]; // Last 161 lastCS =colCS[i]; // Last CrossSect (A-dependent)
135 in = true; // This 162 in = true; // This is the case when the isotop is found in DB
136 // Momentum pMom is in IU ! @@ Units 163 // Momentum pMom is in IU ! @@ Units
137 lastCS=CalculateCrossSection(-1,j,PDG, 164 lastCS=CalculateCrossSection(-1,j,PDG,lastZ,lastN,pMom); // read & update
138 165
139 if(lastCS<=0. && pMom>lastTH) // Corr 166 if(lastCS<=0. && pMom>lastTH) // Correct the threshold (@@ No intermediate Zeros)
140 { 167 {
141 lastCS=0.; 168 lastCS=0.;
142 lastTH=pMom; 169 lastTH=pMom;
143 } 170 }
144 break; // Go o 171 break; // Go out of the LOOP
145 } 172 }
146 j++; // Incr 173 j++; // Increment a#0f records found in DB
147 } 174 }
148 if(!in) // This 175 if(!in) // This isotope has not been calculated previously
149 { 176 {
150 //!!The slave functions must provide cro 177 //!!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU)
151 lastCS=CalculateCrossSection(0,j,PDG,las 178 lastCS=CalculateCrossSection(0,j,PDG,lastZ,lastN,pMom); //calculate & create
>> 179 //if(lastCS>0.) // It means that the AMBD was initialized
>> 180 //{
152 181
153 lastTH = 0; //ThresholdEnergy(tgZ, tgN); 182 lastTH = 0; //ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last
154 colN.push_back(tgN); 183 colN.push_back(tgN);
155 colZ.push_back(tgZ); 184 colZ.push_back(tgZ);
156 colP.push_back(pMom); 185 colP.push_back(pMom);
157 colTH.push_back(lastTH); 186 colTH.push_back(lastTH);
158 colCS.push_back(lastCS); 187 colCS.push_back(lastCS);
159 //} // M.K. Presence of H1 with high thresho 188 //} // M.K. Presence of H1 with high threshold breaks the syncronization
160 return lastCS*millibarn; 189 return lastCS*millibarn;
161 } // End of creation of the new set of par 190 } // End of creation of the new set of parameters
162 else 191 else
163 { 192 {
164 colP[lastI]=pMom; 193 colP[lastI]=pMom;
165 colCS[lastI]=lastCS; 194 colCS[lastI]=lastCS;
166 } 195 }
167 } // End of parameters udate 196 } // End of parameters udate
168 else if(pMom<=lastTH) 197 else if(pMom<=lastTH)
169 { 198 {
170 return 0.; // Mome 199 return 0.; // Momentum is below the Threshold Value -> CS=0
171 } 200 }
172 else // It i 201 else // It is the last used -> use the current tables
173 { 202 {
174 lastCS=CalculateCrossSection(1,j,PDG,lastZ 203 lastCS=CalculateCrossSection(1,j,PDG,lastZ,lastN,pMom); // Only read and UpdateDB
175 lastP=pMom; 204 lastP=pMom;
176 } 205 }
177 return lastCS*millibarn; 206 return lastCS*millibarn;
178 } 207 }
179 208
180 // The main member function giving the gamma-A 209 // The main member function giving the gamma-A cross section (E in GeV, CS in mb)
181 G4double G4ChipsHyperonInelasticXS::CalculateC 210 G4double G4ChipsHyperonInelasticXS::CalculateCrossSection(G4int F, G4int I,
182 G4int, G4int targZ, G4int targ 211 G4int, G4int targZ, G4int targN, G4double Momentum)
183 { 212 {
184 static const G4double THmin=27.; // defa 213 static const G4double THmin=27.; // default minimum Momentum (MeV/c) Threshold
185 static const G4double THmiG=THmin*.001; // m 214 static const G4double THmiG=THmin*.001; // minimum Momentum (GeV/c) Threshold
186 static const G4double dP=10.; // step 215 static const G4double dP=10.; // step for the LEN (Low ENergy) table MeV/c
187 static const G4double dPG=dP*.001; // step 216 static const G4double dPG=dP*.001; // step for the LEN (Low ENergy) table GeV/c
188 static const G4int nL=105; // A#of 217 static const G4int nL=105; // A#of LEN points in E (step 10 MeV/c)
189 static const G4double Pmin=THmin+(nL-1)*dP; 218 static const G4double Pmin=THmin+(nL-1)*dP; // minP for the HighE part with safety
190 static const G4double Pmax=227000.; // maxP 219 static const G4double Pmax=227000.; // maxP for the HEN (High ENergy) part 227 GeV
191 static const G4int nH=224; // A#of 220 static const G4int nH=224; // A#of HEN points in lnE
192 static const G4double milP=G4Log(Pmin);// Lo << 221 static const G4double milP=std::log(Pmin);// Low logarithm energy for the HEN part
193 static const G4double malP=G4Log(Pmax);// Hi << 222 static const G4double malP=std::log(Pmax);// High logarithm energy (each 2.75 percent)
194 static const G4double dlP=(malP-milP)/(nH-1) 223 static const G4double dlP=(malP-milP)/(nH-1); // Step in log energy in the HEN part
195 static const G4double milPG=G4Log(.001*Pmin) << 224 static const G4double milPG=std::log(.001*Pmin);// Low logarithmEnergy for HEN part GeV/c
196 << 225 G4double sigma=0.;
>> 226 if(F&&I) sigma=0.; // @@ *!* Fake line *!* to use F & I !!!Temporary!!!
>> 227 //G4double A=targN+targZ; // A of the target
197 if(F<=0) // This 228 if(F<=0) // This isotope was not the last used isotop
198 { 229 {
199 if(F<0) // This 230 if(F<0) // This isotope was found in DAMDB =-----=> RETRIEVE
200 { 231 {
201 G4int sync=(G4int)LEN->size(); << 232 G4int sync=LEN->size();
202 if(sync<=I) G4cerr<<"*!*G4QPiMinusNuclCS 233 if(sync<=I) G4cerr<<"*!*G4QPiMinusNuclCS::CalcCrosSect:Sync="<<sync<<"<="<<I<<G4endl;
203 lastLEN=(*LEN)[I]; // Poin 234 lastLEN=(*LEN)[I]; // Pointer to prepared LowEnergy cross sections
204 lastHEN=(*HEN)[I]; // Poin 235 lastHEN=(*HEN)[I]; // Pointer to prepared High Energy cross sections
205 } 236 }
206 else // This 237 else // This isotope wasn't calculated before => CREATE
207 { 238 {
208 lastLEN = new G4double[nL]; // Allo 239 lastLEN = new G4double[nL]; // Allocate memory for the new LEN cross sections
209 lastHEN = new G4double[nH]; // Allo 240 lastHEN = new G4double[nH]; // Allocate memory for the new HEN cross sections
210 // --- Instead of making a separate func 241 // --- Instead of making a separate function ---
211 G4double P=THmiG; // Tabl 242 G4double P=THmiG; // Table threshold in GeV/c
212 for(G4int k=0; k<nL; k++) 243 for(G4int k=0; k<nL; k++)
213 { 244 {
214 lastLEN[k] = CrossSectionLin(targZ, ta 245 lastLEN[k] = CrossSectionLin(targZ, targN, P);
215 P+=dPG; 246 P+=dPG;
216 } 247 }
217 G4double lP=milPG; 248 G4double lP=milPG;
218 for(G4int n=0; n<nH; n++) 249 for(G4int n=0; n<nH; n++)
219 { 250 {
220 lastHEN[n] = CrossSectionLog(targZ, ta 251 lastHEN[n] = CrossSectionLog(targZ, targN, lP);
221 lP+=dlP; 252 lP+=dlP;
222 } 253 }
223 // --- End of possible separate function 254 // --- End of possible separate function
224 // *** The synchronization check *** 255 // *** The synchronization check ***
225 G4int sync=(G4int)LEN->size(); << 256 G4int sync=LEN->size();
226 if(sync!=I) 257 if(sync!=I)
227 { 258 {
228 G4cerr<<"***G4QHyperNuclCS::CalcCrossS 259 G4cerr<<"***G4QHyperNuclCS::CalcCrossSect: Sinc="<<sync<<"#"<<I<<", Z=" <<targZ
229 <<", N="<<targN<<", F="<<F<<G4en 260 <<", N="<<targN<<", F="<<F<<G4endl;
230 //G4Exception("G4PiMinusNuclearCS::Cal 261 //G4Exception("G4PiMinusNuclearCS::CalculateCS:","39",FatalException,"DBoverflow");
231 } 262 }
232 LEN->push_back(lastLEN); // reme 263 LEN->push_back(lastLEN); // remember the Low Energy Table
233 HEN->push_back(lastHEN); // reme 264 HEN->push_back(lastHEN); // remember the High Energy Table
234 } // End of creation of the new set of par 265 } // End of creation of the new set of parameters
235 } // End of parameters udate 266 } // End of parameters udate
236 // =--------------------------= NOW the Magi 267 // =--------------------------= NOW the Magic Formula =------------------------------=
237 G4double sigma; <<
238 if (Momentum<lastTH) return 0.; // It m 268 if (Momentum<lastTH) return 0.; // It must be already checked in the interface class
239 else if (Momentum<Pmin) // High 269 else if (Momentum<Pmin) // High Energy region
240 { 270 {
241 sigma=EquLinearFit(Momentum,nL,THmin,dP,la 271 sigma=EquLinearFit(Momentum,nL,THmin,dP,lastLEN);
242 } 272 }
243 else if (Momentum<Pmax) // High 273 else if (Momentum<Pmax) // High Energy region
244 { 274 {
245 G4double lP=G4Log(Momentum); << 275 G4double lP=std::log(Momentum);
246 sigma=EquLinearFit(lP,nH,milP,dlP,lastHEN) 276 sigma=EquLinearFit(lP,nH,milP,dlP,lastHEN);
247 } 277 }
248 else // UHE 278 else // UHE region (calculation, not frequent)
249 { 279 {
250 G4double P=0.001*Momentum; // Appr 280 G4double P=0.001*Momentum; // Approximation formula is for P in GeV/c
251 sigma=CrossSectionFormula(targZ, targN, P, << 281 sigma=CrossSectionFormula(targZ, targN, P, std::log(P));
252 } 282 }
253 if (sigma<0.) return 0.; << 283 if(sigma<0.) return 0.;
254 return sigma; 284 return sigma;
255 } 285 }
256 286
257 // Calculation formula for piMinus-nuclear ine 287 // Calculation formula for piMinus-nuclear inelastic cross-section (mb) (P in GeV/c)
258 G4double G4ChipsHyperonInelasticXS::CrossSecti 288 G4double G4ChipsHyperonInelasticXS::CrossSectionLin(G4int tZ, G4int tN, G4double P)
259 { 289 {
260 G4double lP=G4Log(P); << 290 G4double lP=std::log(P);
261 return CrossSectionFormula(tZ, tN, P, lP); 291 return CrossSectionFormula(tZ, tN, P, lP);
262 } 292 }
263 293
264 // Calculation formula for piMinus-nuclear ine 294 // Calculation formula for piMinus-nuclear inelastic cross-section (mb) log(P in GeV/c)
265 G4double G4ChipsHyperonInelasticXS::CrossSecti 295 G4double G4ChipsHyperonInelasticXS::CrossSectionLog(G4int tZ, G4int tN, G4double lP)
266 { 296 {
267 G4double P=G4Exp(lP); << 297 G4double P=std::exp(lP);
268 return CrossSectionFormula(tZ, tN, P, lP); 298 return CrossSectionFormula(tZ, tN, P, lP);
269 } 299 }
270 // Calculation formula for piMinus-nuclear ine 300 // Calculation formula for piMinus-nuclear inelastic cross-section (mb) log(P in GeV/c)
271 G4double G4ChipsHyperonInelasticXS::CrossSecti 301 G4double G4ChipsHyperonInelasticXS::CrossSectionFormula(G4int tZ, G4int tN,
272 302 G4double P, G4double lP)
273 { 303 {
274 G4double sigma=0.; 304 G4double sigma=0.;
275 <<
276 //AR-24Apr2018 Switch to allow transuranic e <<
277 const G4bool isHeavyElementAllowed = true; <<
278 <<
279 if(tZ==1 && !tN) // H 305 if(tZ==1 && !tN) // Hyperon-P interaction from G4QuasiElastRatios
280 { 306 {
281 G4double ld=lP-3.5; 307 G4double ld=lP-3.5;
282 G4double ld2=ld*ld; 308 G4double ld2=ld*ld;
283 G4double p2=P*P; 309 G4double p2=P*P;
284 G4double p4=p2*p2; 310 G4double p4=p2*p2;
285 G4double sp=std::sqrt(P); 311 G4double sp=std::sqrt(P);
286 G4double El=(.0557*ld2+6.72+99./p2)/(1.+2. 312 G4double El=(.0557*ld2+6.72+99./p2)/(1.+2./sp+2./p4);
287 G4double To=(.3*ld2+38.2+900./sp)/(1.+27./ 313 G4double To=(.3*ld2+38.2+900./sp)/(1.+27./sp+3./p4);
288 sigma=To-El; 314 sigma=To-El;
289 } 315 }
290 else if((tZ<97 && tN<152) || isHeavyElementA << 316 else if(tZ<97 && tN<152) // General solution
291 { 317 {
292 G4double d=lP-4.2; 318 G4double d=lP-4.2;
293 G4double p2=P*P; 319 G4double p2=P*P;
294 G4double p4=p2*p2; 320 G4double p4=p2*p2;
295 G4double sp=std::sqrt(P); 321 G4double sp=std::sqrt(P);
296 G4double ssp=std::sqrt(sp); 322 G4double ssp=std::sqrt(sp);
297 G4double a=tN+tZ; // 323 G4double a=tN+tZ; // A of the target
298 G4double al=G4Log(a); << 324 G4double al=std::log(a);
299 G4double sa=std::sqrt(a); 325 G4double sa=std::sqrt(a);
300 G4double a2=a*a; 326 G4double a2=a*a;
301 G4double a2s=a2*sa; 327 G4double a2s=a2*sa;
302 G4double a4=a2*a2; 328 G4double a4=a2*a2;
303 G4double a8=a4*a4; 329 G4double a8=a4*a4;
304 G4double c=(170.+3600./a2s)/(1.+65./a2s); 330 G4double c=(170.+3600./a2s)/(1.+65./a2s);
305 G4double gg=42.*(G4Exp(al*0.8)+4.E-8*a4)/( << 331 G4double gg=42.*(std::exp(al*0.8)+4.E-8*a4)/(1.+28./a)/(1.+5.E-5*a2);
306 G4double e=390.; // 332 G4double e=390.; // Defolt values for deutrons
307 G4double r=0.27; 333 G4double r=0.27;
308 G4double h=2.E-7; 334 G4double h=2.E-7;
309 G4double t=0.3; 335 G4double t=0.3;
310 if(tZ>1 || tN>1) 336 if(tZ>1 || tN>1)
311 { 337 {
312 e=380.+18.*a2/(1.+a2/60.)/(1.+2.E-19*a8) 338 e=380.+18.*a2/(1.+a2/60.)/(1.+2.E-19*a8);
313 r=0.15; 339 r=0.15;
314 h=1.E-8*a2/(1.+a2/17.)/(1.+3.E-20*a8); 340 h=1.E-8*a2/(1.+a2/17.)/(1.+3.E-20*a8);
315 t=(.2+.00056*a2)/(1.+a2*.0006); 341 t=(.2+.00056*a2)/(1.+a2*.0006);
316 } 342 }
317 sigma=(c+d*d)/(1.+t/ssp+r/p4)+(gg+e*G4Exp( << 343 sigma=(c+d*d)/(1.+t/ssp+r/p4)+(gg+e*std::exp(-6.*P))/(1.+h/p4/p4);
318 #ifdef pdebug 344 #ifdef pdebug
319 G4cout<<"G4QHyperonNucCS::CSForm: A="<<a<< 345 G4cout<<"G4QHyperonNucCS::CSForm: A="<<a<<",P="<<P<<",CS="<<sigma<<",c="<<c<<",g="<<gg
320 <<",d="<<d<<",r="<<r<<",e="<<e<<",h= 346 <<",d="<<d<<",r="<<r<<",e="<<e<<",h="<<h<<G4endl;
321 #endif 347 #endif
322 } 348 }
323 else 349 else
324 { 350 {
325 G4cerr<<"-Warning-G4QHyperonNuclearCroSect 351 G4cerr<<"-Warning-G4QHyperonNuclearCroSect::CSForm:*Bad A* Z="<<tZ<<", N="<<tN<<G4endl;
326 sigma=0.; 352 sigma=0.;
327 } 353 }
328 if(sigma<0.) return 0.; 354 if(sigma<0.) return 0.;
329 return sigma; 355 return sigma;
330 } 356 }
331 357
332 G4double G4ChipsHyperonInelasticXS::EquLinearF 358 G4double G4ChipsHyperonInelasticXS::EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y)
333 { 359 {
334 if(DX<=0. || N<2) 360 if(DX<=0. || N<2)
335 { 361 {
336 G4cerr<<"***G4ChipsHyperonInelasticXS::E 362 G4cerr<<"***G4ChipsHyperonInelasticXS::EquLinearFit: DX="<<DX<<", N="<<N<<G4endl;
337 return Y[0]; 363 return Y[0];
338 } 364 }
339 365
340 G4int N2=N-2; 366 G4int N2=N-2;
341 G4double d=(X-X0)/DX; 367 G4double d=(X-X0)/DX;
342 G4int jj=static_cast<int>(d); << 368 G4int j=static_cast<int>(d);
343 if (jj<0) jj=0; << 369 if (j<0) j=0;
344 else if(jj>N2) jj=N2; << 370 else if(j>N2) j=N2;
345 d-=jj; // excess << 371 d-=j; // excess
346 G4double yi=Y[jj]; << 372 G4double yi=Y[j];
347 G4double sigma=yi+(Y[jj+1]-yi)*d; << 373 G4double sigma=yi+(Y[j+1]-yi)*d;
348 374
349 return sigma; 375 return sigma;
350 } 376 }
351 377