1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // $Id: G4QProtonElasticCrossSection.cc,v 1.4 2010/06/25 09:45:53 gunter Exp $ |
---|
28 | // GEANT4 tag $Name: hadr-chips-V09-03-08 $ |
---|
29 | // |
---|
30 | // |
---|
31 | // G4 Physics class: G4QProtonElasticCrossSection for pA elastic cross sections |
---|
32 | // Created: M.V. Kossov, CERN/ITEP(Moscow), 10-OCT-01 |
---|
33 | // The last update: M.V. Kossov, CERN/ITEP (Moscow) 12-Jan-10 (from G4QElCrSect) |
---|
34 | // |
---|
35 | //================================================================================ |
---|
36 | // Short description: Interaction cross-sections for the G4QElastic process |
---|
37 | // ------------------------------------------------------------------------------- |
---|
38 | |
---|
39 | //#define debug |
---|
40 | //#define isodebug |
---|
41 | //#define pdebug |
---|
42 | //#define ppdebug |
---|
43 | //#define tdebug |
---|
44 | //#define sdebug |
---|
45 | |
---|
46 | #include "G4QProtonElasticCrossSection.hh" |
---|
47 | |
---|
48 | // Initialization of the static parameters |
---|
49 | const G4int G4QProtonElasticCrossSection::nPoints=128;//#ofPt in the AMDB table(>anyPar)(D) |
---|
50 | const G4int G4QProtonElasticCrossSection::nLast=nPoints-1;// theLastElement in the table(D) |
---|
51 | G4double G4QProtonElasticCrossSection::lPMin=-8.; // Min tabulated logarithmicMomentum(D) |
---|
52 | G4double G4QProtonElasticCrossSection::lPMax= 8.; // Max tabulated logarithmicMomentum(D) |
---|
53 | G4double G4QProtonElasticCrossSection::dlnP=(lPMax-lPMin)/nLast;// LogStep in the table(D) |
---|
54 | G4bool G4QProtonElasticCrossSection::onlyCS=true;// Flag toCalculateOnlyCS(not Si/Bi)(L) |
---|
55 | G4double G4QProtonElasticCrossSection::lastSIG=0.; // Last calculated cross section (L) |
---|
56 | G4double G4QProtonElasticCrossSection::lastLP=-10.;// Last log(mom_ofTheIncidentHadron)(L) |
---|
57 | G4double G4QProtonElasticCrossSection::lastTM=0.; // Last t_maximum (L) |
---|
58 | G4double G4QProtonElasticCrossSection::theSS=0.; // The Last sq.slope of 1st difr.Max(L) |
---|
59 | G4double G4QProtonElasticCrossSection::theS1=0.; // The Last mantissa of 1st difr.Max(L) |
---|
60 | G4double G4QProtonElasticCrossSection::theB1=0.; // The Last slope of 1st difruct.Max(L) |
---|
61 | G4double G4QProtonElasticCrossSection::theS2=0.; // The Last mantissa of 2nd difr.Max(L) |
---|
62 | G4double G4QProtonElasticCrossSection::theB2=0.; // The Last slope of 2nd difruct.Max(L) |
---|
63 | G4double G4QProtonElasticCrossSection::theS3=0.; // The Last mantissa of 3d difr. Max(L) |
---|
64 | G4double G4QProtonElasticCrossSection::theB3=0.; // The Last slope of 3d difruct. Max(L) |
---|
65 | G4double G4QProtonElasticCrossSection::theS4=0.; // The Last mantissa of 4th difr.Max(L) |
---|
66 | G4double G4QProtonElasticCrossSection::theB4=0.; // The Last slope of 4th difruct.Max(L) |
---|
67 | G4int G4QProtonElasticCrossSection::lastTZ=0; // Last atomic number of the target |
---|
68 | G4int G4QProtonElasticCrossSection::lastTN=0; // Last # of neutrons in the target |
---|
69 | G4double G4QProtonElasticCrossSection::lastPIN=0.; // Last initialized max momentum |
---|
70 | G4double* G4QProtonElasticCrossSection::lastCST=0; // Elastic cross-section table |
---|
71 | G4double* G4QProtonElasticCrossSection::lastPAR=0; // Parameters for FunctionalCalculation |
---|
72 | G4double* G4QProtonElasticCrossSection::lastSST=0; // E-dep of sq.slope of the 1st dif.Max |
---|
73 | G4double* G4QProtonElasticCrossSection::lastS1T=0; // E-dep of mantissa of the 1st dif.Max |
---|
74 | G4double* G4QProtonElasticCrossSection::lastB1T=0; // E-dep of the slope of the 1st difMax |
---|
75 | G4double* G4QProtonElasticCrossSection::lastS2T=0; // E-dep of mantissa of the 2nd difrMax |
---|
76 | G4double* G4QProtonElasticCrossSection::lastB2T=0; // E-dep of the slope of the 2nd difMax |
---|
77 | G4double* G4QProtonElasticCrossSection::lastS3T=0; // E-dep of mantissa of the 3d difr.Max |
---|
78 | G4double* G4QProtonElasticCrossSection::lastB3T=0; // E-dep of the slope of the 3d difrMax |
---|
79 | G4double* G4QProtonElasticCrossSection::lastS4T=0; // E-dep of mantissa of the 4th difrMax |
---|
80 | G4double* G4QProtonElasticCrossSection::lastB4T=0; // E-dep of the slope of the 4th difMax |
---|
81 | G4int G4QProtonElasticCrossSection::lastN=0; // The last N of calculated nucleus |
---|
82 | G4int G4QProtonElasticCrossSection::lastZ=0; // The last Z of calculated nucleus |
---|
83 | G4double G4QProtonElasticCrossSection::lastP=0.; // Last used in cross section Momentum |
---|
84 | G4double G4QProtonElasticCrossSection::lastTH=0.; // Last threshold momentum |
---|
85 | G4double G4QProtonElasticCrossSection::lastCS=0.; // Last value of the Cross Section |
---|
86 | G4int G4QProtonElasticCrossSection::lastI=0; // The last position in the DAMDB |
---|
87 | |
---|
88 | std::vector<G4double*> G4QProtonElasticCrossSection::PAR; // Vector of pars for functCalcul |
---|
89 | std::vector<G4double*> G4QProtonElasticCrossSection::CST; // Vector of cross-section table |
---|
90 | std::vector<G4double*> G4QProtonElasticCrossSection::SST; // Vector of the 1st SquaredSlope |
---|
91 | std::vector<G4double*> G4QProtonElasticCrossSection::S1T; // Vector of the 1st mantissa |
---|
92 | std::vector<G4double*> G4QProtonElasticCrossSection::B1T; // Vector of the 1st slope |
---|
93 | std::vector<G4double*> G4QProtonElasticCrossSection::S2T; // Vector of the 2nd mantissa |
---|
94 | std::vector<G4double*> G4QProtonElasticCrossSection::B2T; // Vector of the 2nd slope |
---|
95 | std::vector<G4double*> G4QProtonElasticCrossSection::S3T; // Vector of the 3d mantissa |
---|
96 | std::vector<G4double*> G4QProtonElasticCrossSection::B3T; // Vector of the 3d slope |
---|
97 | std::vector<G4double*> G4QProtonElasticCrossSection::S4T; // Vector of the 4th mantissa (g) |
---|
98 | std::vector<G4double*> G4QProtonElasticCrossSection::B4T; // Vector of the 4th slope (glor) |
---|
99 | |
---|
100 | G4QProtonElasticCrossSection::G4QProtonElasticCrossSection() |
---|
101 | { |
---|
102 | } |
---|
103 | |
---|
104 | G4QProtonElasticCrossSection::~G4QProtonElasticCrossSection() |
---|
105 | { |
---|
106 | std::vector<G4double*>::iterator pos; |
---|
107 | for (pos=CST.begin(); pos<CST.end(); pos++) |
---|
108 | { delete [] *pos; } |
---|
109 | CST.clear(); |
---|
110 | for (pos=PAR.begin(); pos<PAR.end(); pos++) |
---|
111 | { delete [] *pos; } |
---|
112 | PAR.clear(); |
---|
113 | for (pos=SST.begin(); pos<SST.end(); pos++) |
---|
114 | { delete [] *pos; } |
---|
115 | SST.clear(); |
---|
116 | for (pos=S1T.begin(); pos<S1T.end(); pos++) |
---|
117 | { delete [] *pos; } |
---|
118 | S1T.clear(); |
---|
119 | for (pos=B1T.begin(); pos<B1T.end(); pos++) |
---|
120 | { delete [] *pos; } |
---|
121 | B1T.clear(); |
---|
122 | for (pos=S2T.begin(); pos<S2T.end(); pos++) |
---|
123 | { delete [] *pos; } |
---|
124 | S2T.clear(); |
---|
125 | for (pos=B2T.begin(); pos<B2T.end(); pos++) |
---|
126 | { delete [] *pos; } |
---|
127 | B2T.clear(); |
---|
128 | for (pos=S3T.begin(); pos<S3T.end(); pos++) |
---|
129 | { delete [] *pos; } |
---|
130 | S3T.clear(); |
---|
131 | for (pos=B3T.begin(); pos<B3T.end(); pos++) |
---|
132 | { delete [] *pos; } |
---|
133 | B3T.clear(); |
---|
134 | for (pos=S4T.begin(); pos<S4T.end(); pos++) |
---|
135 | { delete [] *pos; } |
---|
136 | S4T.clear(); |
---|
137 | for (pos=B4T.begin(); pos<B4T.end(); pos++) |
---|
138 | { delete [] *pos; } |
---|
139 | B4T.clear(); |
---|
140 | } |
---|
141 | |
---|
142 | // Returns Pointer to the G4VQCrossSection class |
---|
143 | G4VQCrossSection* G4QProtonElasticCrossSection::GetPointer() |
---|
144 | { |
---|
145 | static G4QProtonElasticCrossSection theCrossSection;//*StaticBody of theQEl CrossSection* |
---|
146 | return &theCrossSection; |
---|
147 | } |
---|
148 | |
---|
149 | // The main member function giving the collision cross section (P is in IU, CS is in mb) |
---|
150 | // Make pMom in independent units ! (Now it is MeV) |
---|
151 | G4double G4QProtonElasticCrossSection::GetCrossSection(G4bool fCS,G4double pMom, G4int tgZ, |
---|
152 | G4int tgN, G4int pPDG) |
---|
153 | { |
---|
154 | static std::vector <G4int> colN; // Vector of N for calculated nuclei (isotops) |
---|
155 | static std::vector <G4int> colZ; // Vector of Z for calculated nuclei (isotops) |
---|
156 | static std::vector <G4double> colP; // Vector of last momenta for the reaction |
---|
157 | static std::vector <G4double> colTH; // Vector of energy thresholds for the reaction |
---|
158 | static std::vector <G4double> colCS; // Vector of last cross sections for the reaction |
---|
159 | // ***---*** End of the mandatory Static Definitions of the Associative Memory ***---*** |
---|
160 | G4double pEn=pMom; |
---|
161 | onlyCS=fCS; |
---|
162 | #ifdef pdebug |
---|
163 | G4cout<<"G4QPElCS::GetCS:>>> f="<<fCS<<", p="<<pMom<<", Z="<<tgZ<<"("<<lastZ<<") ,N=" |
---|
164 | <<tgN<<"("<<lastN<<"), T="<<pEn<<"("<<lastTH<<")"<<",Sz="<<colN.size()<<G4endl; |
---|
165 | //CalculateCrossSection(fCS,-27,j,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
166 | #endif |
---|
167 | if(pPDG!=2212) |
---|
168 | { |
---|
169 | G4cout<<"*Warning*G4QProtonElCS::GetCS: *** Found pPDG="<<pPDG<<" ====> CS=0"<<G4endl; |
---|
170 | //CalculateCrossSection(fCS,-27,j,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
171 | return 0.; // projectile PDG=0 is a mistake (?!) @@ |
---|
172 | } |
---|
173 | G4bool in=false; // By default the isotope must be found in the AMDB |
---|
174 | lastP = 0.; // New momentum history (nothing to compare with) |
---|
175 | lastN = tgN; // The last N of the calculated nucleus |
---|
176 | lastZ = tgZ; // The last Z of the calculated nucleus |
---|
177 | lastI = colN.size(); // Size of the Associative Memory DB in the heap |
---|
178 | if(lastI) for(G4int i=0; i<lastI; i++) // Loop over proj/tgZ/tgN lines of DB |
---|
179 | { // The nucleus with projPDG is found in AMDB |
---|
180 | if(colN[i]==tgN && colZ[i]==tgZ) // Isotope is foind in AMDB |
---|
181 | { |
---|
182 | lastI=i; |
---|
183 | lastTH =colTH[i]; // Last THreshold (A-dependent) |
---|
184 | #ifdef pdebug |
---|
185 | G4cout<<"G4QElCS::GetCS:*Found* P="<<pMom<<",Threshold="<<lastTH<<",i="<<i<<G4endl; |
---|
186 | //CalculateCrossSection(fCS,-27,i,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
187 | #endif |
---|
188 | if(pEn<=lastTH) |
---|
189 | { |
---|
190 | #ifdef pdebug |
---|
191 | G4cout<<"G4QElCS::GetCS:Found T="<<pEn<<" < Threshold="<<lastTH<<",CS=0"<<G4endl; |
---|
192 | //CalculateCrossSection(fCS,-27,i,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
193 | #endif |
---|
194 | return 0.; // Energy is below the Threshold value |
---|
195 | } |
---|
196 | lastP =colP [i]; // Last Momentum (A-dependent) |
---|
197 | lastCS =colCS[i]; // Last CrossSect (A-dependent) |
---|
198 | // if(std::fabs(lastP/pMom-1.)<tolerance) //VI (do not use tolerance) |
---|
199 | if(lastP == pMom) // Do not recalculate |
---|
200 | { |
---|
201 | #ifdef pdebug |
---|
202 | G4cout<<"G4QElCS::GetCS:P="<<pMom<<",CS="<<lastCS*millibarn<<G4endl; |
---|
203 | #endif |
---|
204 | CalculateCrossSection(fCS,-1,i,pPDG,lastZ,lastN,pMom); // Update param's only |
---|
205 | return lastCS*millibarn; // Use theLastCS |
---|
206 | } |
---|
207 | in = true; // This is the case when the isotop is found in DB |
---|
208 | // Momentum pMom is in IU ! @@ Units |
---|
209 | #ifdef pdebug |
---|
210 | G4cout<<"G4QElCS::G:UpdateDB P="<<pMom<<",f="<<fCS<<",I="<<lastI<<",i="<<i<<G4endl; |
---|
211 | #endif |
---|
212 | lastCS=CalculateCrossSection(fCS,-1,i,pPDG,lastZ,lastN,pMom); // read & update |
---|
213 | #ifdef pdebug |
---|
214 | G4cout<<"G4QElCS::GetCrosSec: *****> New (inDB) Calculated CS="<<lastCS<<G4endl; |
---|
215 | //CalculateCrossSection(fCS,-27,i,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
216 | #endif |
---|
217 | if(lastCS<=0. && pEn>lastTH) // Correct the threshold |
---|
218 | { |
---|
219 | #ifdef pdebug |
---|
220 | G4cout<<"G4QElCS::GetCS: New T="<<pEn<<"(CS=0) > Threshold="<<lastTH<<G4endl; |
---|
221 | #endif |
---|
222 | lastTH=pEn; |
---|
223 | } |
---|
224 | break; // Go out of the LOOP with found lastI |
---|
225 | } |
---|
226 | #ifdef pdebug |
---|
227 | G4cout<<"---G4QElCrossSec::GetCrosSec:pPDG="<<pPDG<<",i="<<i<<",N="<<colN[i] |
---|
228 | <<",Z["<<i<<"]="<<colZ[i]<<G4endl; |
---|
229 | //CalculateCrossSection(fCS,-27,i,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
230 | #endif |
---|
231 | } // End of attampt to find the nucleus in DB |
---|
232 | if(!in) // This nucleus has not been calculated previously |
---|
233 | { |
---|
234 | #ifdef pdebug |
---|
235 | G4cout<<"G4QElCS::GetCrosSec:CalcNew P="<<pMom<<",f="<<fCS<<",lastI="<<lastI<<G4endl; |
---|
236 | #endif |
---|
237 | //!!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU) |
---|
238 | lastCS=CalculateCrossSection(fCS,0,lastI,pPDG,lastZ,lastN,pMom);//calculate&create |
---|
239 | if(lastCS<=0.) |
---|
240 | { |
---|
241 | lastTH = ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last |
---|
242 | #ifdef pdebug |
---|
243 | G4cout<<"G4QElCrossSection::GetCrossSect: NewThresh="<<lastTH<<",T="<<pEn<<G4endl; |
---|
244 | #endif |
---|
245 | if(pEn>lastTH) |
---|
246 | { |
---|
247 | #ifdef pdebug |
---|
248 | G4cout<<"G4QElCS::GetCS: First T="<<pEn<<"(CS=0) > Threshold="<<lastTH<<G4endl; |
---|
249 | #endif |
---|
250 | lastTH=pEn; |
---|
251 | } |
---|
252 | } |
---|
253 | #ifdef pdebug |
---|
254 | G4cout<<"G4QElCS::GetCrosSec: New CS="<<lastCS<<",lZ="<<lastN<<",lN="<<lastZ<<G4endl; |
---|
255 | //CalculateCrossSection(fCS,-27,lastI,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
256 | #endif |
---|
257 | colN.push_back(tgN); |
---|
258 | colZ.push_back(tgZ); |
---|
259 | colP.push_back(pMom); |
---|
260 | colTH.push_back(lastTH); |
---|
261 | colCS.push_back(lastCS); |
---|
262 | #ifdef pdebug |
---|
263 | G4cout<<"G4QElCS::GetCS:1st,P="<<pMom<<"(MeV),CS="<<lastCS*millibarn<<"(mb)"<<G4endl; |
---|
264 | //CalculateCrossSection(fCS,-27,lastI,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
265 | #endif |
---|
266 | return lastCS*millibarn; |
---|
267 | } // End of creation of the new set of parameters |
---|
268 | else |
---|
269 | { |
---|
270 | #ifdef pdebug |
---|
271 | G4cout<<"G4QElCS::GetCS: Update lastI="<<lastI<<G4endl; |
---|
272 | #endif |
---|
273 | colP[lastI]=pMom; |
---|
274 | colCS[lastI]=lastCS; |
---|
275 | } |
---|
276 | #ifdef pdebug |
---|
277 | G4cout<<"G4QElCS::GetCrSec:End,P="<<pMom<<"(MeV),CS="<<lastCS*millibarn<<"(mb)"<<G4endl; |
---|
278 | //CalculateCrossSection(fCS,-27,lastI,pPDG,lastZ,lastN,pMom); // DUMMY TEST |
---|
279 | G4cout<<"G4QElCS::GetCrSec:***End***, onlyCS="<<onlyCS<<G4endl; |
---|
280 | #endif |
---|
281 | return lastCS*millibarn; |
---|
282 | } |
---|
283 | |
---|
284 | // Calculation of total elastic cross section (p in IU, CS in mb) @@ Units (?) |
---|
285 | // F=0 - create AMDB, F=-1 - read&update AMDB, F=1 - update AMDB (sinchro with higher AMDB) |
---|
286 | G4double G4QProtonElasticCrossSection::CalculateCrossSection(G4bool CS, G4int F, G4int I, |
---|
287 | G4int PDG, G4int tgZ, G4int tgN, G4double pIU) |
---|
288 | { |
---|
289 | // *** Begin of Associative Memory DB for acceleration of the cross section calculations |
---|
290 | static std::vector <G4double> PIN; // Vector of max initialized log(P) in the table |
---|
291 | // *** End of Static Definitions (Associative Memory Data Base) *** |
---|
292 | G4double pMom=pIU/GeV; // All calculations are in GeV |
---|
293 | onlyCS=CS; // Flag to calculate only CS (not Si/Bi) |
---|
294 | #ifdef pdebug |
---|
295 | G4cout<<"G4QProtonElasticCrossS::CalcCS:->onlyCS="<<onlyCS<<",F="<<F<<",p="<<pIU<<G4endl; |
---|
296 | #endif |
---|
297 | lastLP=std::log(pMom); // Make a logarithm of the momentum for calculation |
---|
298 | if(F) // This isotope was found in AMDB =>RETRIEVE/UPDATE |
---|
299 | { |
---|
300 | if(F<0) // the AMDB must be loded |
---|
301 | { |
---|
302 | lastPIN = PIN[I]; // Max log(P) initialised for this table set |
---|
303 | lastPAR = PAR[I]; // Pointer to the parameter set |
---|
304 | lastCST = CST[I]; // Pointer to the total sross-section table |
---|
305 | lastSST = SST[I]; // Pointer to the first squared slope |
---|
306 | lastS1T = S1T[I]; // Pointer to the first mantissa |
---|
307 | lastB1T = B1T[I]; // Pointer to the first slope |
---|
308 | lastS2T = S2T[I]; // Pointer to the second mantissa |
---|
309 | lastB2T = B2T[I]; // Pointer to the second slope |
---|
310 | lastS3T = S3T[I]; // Pointer to the third mantissa |
---|
311 | lastB3T = B3T[I]; // Pointer to the rhird slope |
---|
312 | lastS4T = S4T[I]; // Pointer to the 4-th mantissa |
---|
313 | lastB4T = B4T[I]; // Pointer to the 4-th slope |
---|
314 | #ifdef pdebug |
---|
315 | G4cout<<"G4QElasticCS::CalcCS: DB is updated for I="<<I<<",*,PIN4="<<PIN[4]<<G4endl; |
---|
316 | #endif |
---|
317 | } |
---|
318 | #ifdef pdebug |
---|
319 | G4cout<<"G4QProtonElasticCrossS::CalcCS:*read*, LP="<<lastLP<<",PIN="<<lastPIN<<G4endl; |
---|
320 | #endif |
---|
321 | if(lastLP>lastPIN && lastLP<lPMax) |
---|
322 | { |
---|
323 | lastPIN=GetPTables(lastLP,lastPIN,PDG,tgZ,tgN);// Can update upper logP-Limit in tabs |
---|
324 | #ifdef pdebug |
---|
325 | G4cout<<"G4QElCS::CalcCS:*updated(I)*,LP="<<lastLP<<"<IN["<<I<<"]="<<lastPIN<<G4endl; |
---|
326 | #endif |
---|
327 | PIN[I]=lastPIN; // Remember the new P-Limit of the tables |
---|
328 | } |
---|
329 | } |
---|
330 | else // This isotope wasn't initialized => CREATE |
---|
331 | { |
---|
332 | lastPAR = new G4double[nPoints]; // Allocate memory for parameters of CS function |
---|
333 | lastPAR[nLast]=0; // Initialization for VALGRIND |
---|
334 | lastCST = new G4double[nPoints]; // Allocate memory for Tabulated CS function |
---|
335 | lastSST = new G4double[nPoints]; // Allocate memory for Tabulated first sqaredSlope |
---|
336 | lastS1T = new G4double[nPoints]; // Allocate memory for Tabulated first mantissa |
---|
337 | lastB1T = new G4double[nPoints]; // Allocate memory for Tabulated first slope |
---|
338 | lastS2T = new G4double[nPoints]; // Allocate memory for Tabulated second mantissa |
---|
339 | lastB2T = new G4double[nPoints]; // Allocate memory for Tabulated second slope |
---|
340 | lastS3T = new G4double[nPoints]; // Allocate memory for Tabulated third mantissa |
---|
341 | lastB3T = new G4double[nPoints]; // Allocate memory for Tabulated third slope |
---|
342 | lastS4T = new G4double[nPoints]; // Allocate memory for Tabulated 4-th mantissa |
---|
343 | lastB4T = new G4double[nPoints]; // Allocate memory for Tabulated 4-th slope |
---|
344 | #ifdef pdebug |
---|
345 | G4cout<<"G4QProtonElasticCrossS::CalcCS:*ini*,lastLP="<<lastLP<<",min="<<lPMin<<G4endl; |
---|
346 | #endif |
---|
347 | lastPIN = GetPTables(lastLP,lPMin,PDG,tgZ,tgN); // Returns the new P-limit for tables |
---|
348 | #ifdef pdebug |
---|
349 | G4cout<<"G4QProtElCS::CCS:i,Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<",LP"<<lastPIN<<G4endl; |
---|
350 | #endif |
---|
351 | PIN.push_back(lastPIN); // Fill parameters of CS function to AMDB |
---|
352 | PAR.push_back(lastPAR); // Fill parameters of CS function to AMDB |
---|
353 | CST.push_back(lastCST); // Fill Tabulated CS function to AMDB |
---|
354 | SST.push_back(lastSST); // Fill Tabulated first sq.slope to AMDB |
---|
355 | S1T.push_back(lastS1T); // Fill Tabulated first mantissa to AMDB |
---|
356 | B1T.push_back(lastB1T); // Fill Tabulated first slope to AMDB |
---|
357 | S2T.push_back(lastS2T); // Fill Tabulated second mantissa to AMDB |
---|
358 | B2T.push_back(lastB2T); // Fill Tabulated second slope to AMDB |
---|
359 | S3T.push_back(lastS3T); // Fill Tabulated third mantissa to AMDB |
---|
360 | B3T.push_back(lastB3T); // Fill Tabulated third slope to AMDB |
---|
361 | S4T.push_back(lastS4T); // Fill Tabulated 4-th mantissa to AMDB |
---|
362 | B4T.push_back(lastB4T); // Fill Tabulated 4-th slope to AMDB |
---|
363 | } // End of creation/update of the new set of parameters and tables |
---|
364 | // ============= NOW Update (if necessary) and Calculate the Cross Section =========== |
---|
365 | #ifdef pdebug |
---|
366 | G4cout<<"G4QElCS::CalcCS:?update?,LP="<<lastLP<<",IN="<<lastPIN<<",ML="<<lPMax<<G4endl; |
---|
367 | #endif |
---|
368 | if(lastLP>lastPIN && lastLP<lPMax) |
---|
369 | { |
---|
370 | lastPIN = GetPTables(lastLP,lastPIN,PDG,tgZ,tgN); |
---|
371 | #ifdef pdebug |
---|
372 | G4cout<<"G4QElCS::CalcCS: *updated(O)*, LP="<<lastLP<<" < IN="<<lastPIN<<G4endl; |
---|
373 | #endif |
---|
374 | } |
---|
375 | #ifdef pdebug |
---|
376 | G4cout<<"G4QElastCS::CalcCS: lastLP="<<lastLP<<",lPM="<<lPMin<<",lPIN="<<lastPIN<<G4endl; |
---|
377 | #endif |
---|
378 | if(!onlyCS) lastTM=GetQ2max(PDG, tgZ, tgN, pMom); // Calculate (-t)_max=Q2_max (GeV2) |
---|
379 | #ifdef pdebug |
---|
380 | G4cout<<"G4QElasticCrosSec::CalcCS:oCS="<<onlyCS<<",-t="<<lastTM<<", p="<<lastLP<<G4endl; |
---|
381 | #endif |
---|
382 | if(lastLP>lPMin && lastLP<=lastPIN) // Linear fit is made using precalculated tables |
---|
383 | { |
---|
384 | if(lastLP==lastPIN) |
---|
385 | { |
---|
386 | G4double shift=(lastLP-lPMin)/dlnP+.000001; // Log distance from lPMin |
---|
387 | G4int blast=static_cast<int>(shift); // this is a bin number of the lower edge (0) |
---|
388 | if(blast<0 || blast>=nLast) G4cout<<"G4QEleastCS::CCS:b="<<blast<<","<<nLast<<G4endl; |
---|
389 | lastSIG = lastCST[blast]; |
---|
390 | if(!onlyCS) // Skip the differential cross-section parameters |
---|
391 | { |
---|
392 | theSS = lastSST[blast]; |
---|
393 | theS1 = lastS1T[blast]; |
---|
394 | theB1 = lastB1T[blast]; |
---|
395 | theS2 = lastS2T[blast]; |
---|
396 | theB2 = lastB2T[blast]; |
---|
397 | theS3 = lastS3T[blast]; |
---|
398 | theB3 = lastB3T[blast]; |
---|
399 | theS4 = lastS4T[blast]; |
---|
400 | theB4 = lastB4T[blast]; |
---|
401 | } |
---|
402 | #ifdef pdebug |
---|
403 | G4cout<<"G4QProtonElasticCrossS::CalculateCS:(E) S1="<<theS1<<", B1="<<theB1<<G4endl; |
---|
404 | #endif |
---|
405 | } |
---|
406 | else |
---|
407 | { |
---|
408 | G4double shift=(lastLP-lPMin)/dlnP; // a shift from the beginning of the table |
---|
409 | G4int blast=static_cast<int>(shift); // the lower bin number |
---|
410 | if(blast<0) blast=0; |
---|
411 | if(blast>=nLast) blast=nLast-1; // low edge of the last bin |
---|
412 | shift-=blast; // step inside the unit bin |
---|
413 | G4int lastL=blast+1; // the upper bin number |
---|
414 | G4double SIGL=lastCST[blast]; // the basic value of the cross-section |
---|
415 | lastSIG= SIGL+shift*(lastCST[lastL]-SIGL); // calculated total elastic cross-section |
---|
416 | #ifdef pdebug |
---|
417 | G4cout<<"G4QElCS::CalcCrossSection: Sig="<<lastSIG<<", P="<<pMom<<", Z="<<tgZ<<", N=" |
---|
418 | <<tgN<<", PDG="<<PDG<<", onlyCS="<<onlyCS<<G4endl; |
---|
419 | #endif |
---|
420 | if(!onlyCS) // Skip the differential cross-section parameters |
---|
421 | { |
---|
422 | G4double SSTL=lastSST[blast]; // the low bin of the first squared slope |
---|
423 | theSS=SSTL+shift*(lastSST[lastL]-SSTL); // the basic value of the first sq.slope |
---|
424 | G4double S1TL=lastS1T[blast]; // the low bin of the first mantissa |
---|
425 | theS1=S1TL+shift*(lastS1T[lastL]-S1TL); // the basic value of the first mantissa |
---|
426 | G4double B1TL=lastB1T[blast]; // the low bin of the first slope |
---|
427 | #ifdef pdebug |
---|
428 | G4cout<<"G4QElCS::CalcCrossSection:bl="<<blast<<",ls="<<lastL<<",SL="<<S1TL<<",SU=" |
---|
429 | <<lastS1T[lastL]<<",BL="<<B1TL<<",BU="<<lastB1T[lastL]<<G4endl; |
---|
430 | #endif |
---|
431 | theB1=B1TL+shift*(lastB1T[lastL]-B1TL); // the basic value of the first slope |
---|
432 | G4double S2TL=lastS2T[blast]; // the low bin of the second mantissa |
---|
433 | theS2=S2TL+shift*(lastS2T[lastL]-S2TL); // the basic value of the second mantissa |
---|
434 | G4double B2TL=lastB2T[blast]; // the low bin of the second slope |
---|
435 | theB2=B2TL+shift*(lastB2T[lastL]-B2TL); // the basic value of the second slope |
---|
436 | G4double S3TL=lastS3T[blast]; // the low bin of the third mantissa |
---|
437 | theS3=S3TL+shift*(lastS3T[lastL]-S3TL); // the basic value of the third mantissa |
---|
438 | #ifdef pdebug |
---|
439 | G4cout<<"G4QElCS::CCS: s3l="<<S3TL<<",sh3="<<shift<<",s3h="<<lastS3T[lastL]<<",b=" |
---|
440 | <<blast<<",l="<<lastL<<G4endl; |
---|
441 | #endif |
---|
442 | G4double B3TL=lastB3T[blast]; // the low bin of the third slope |
---|
443 | theB3=B3TL+shift*(lastB3T[lastL]-B3TL); // the basic value of the third slope |
---|
444 | G4double S4TL=lastS4T[blast]; // the low bin of the 4-th mantissa |
---|
445 | theS4=S4TL+shift*(lastS4T[lastL]-S4TL); // the basic value of the 4-th mantissa |
---|
446 | #ifdef pdebug |
---|
447 | G4cout<<"G4QElCS::CCS: s4l="<<S4TL<<",sh4="<<shift<<",s4h="<<lastS4T[lastL]<<",b=" |
---|
448 | <<blast<<",l="<<lastL<<G4endl; |
---|
449 | #endif |
---|
450 | G4double B4TL=lastB4T[blast]; // the low bin of the 4-th slope |
---|
451 | theB4=B4TL+shift*(lastB4T[lastL]-B4TL); // the basic value of the 4-th slope |
---|
452 | } |
---|
453 | #ifdef pdebug |
---|
454 | G4cout<<"G4QProtonElasticCrossS::CalculateCS:(I) S1="<<theS1<<", B1="<<theB1<<G4endl; |
---|
455 | #endif |
---|
456 | } |
---|
457 | } |
---|
458 | else lastSIG=GetTabValues(lastLP, PDG, tgZ, tgN); // Direct calculation beyond the table |
---|
459 | if(lastSIG<0.) lastSIG = 0.; // @@ a Warning print can be added |
---|
460 | #ifdef pdebug |
---|
461 | G4cout<<"G4QProtonElasticCrossSection::CalculateCS: END, onlyCS="<<onlyCS<<G4endl; |
---|
462 | #endif |
---|
463 | return lastSIG; |
---|
464 | } |
---|
465 | |
---|
466 | // It has parameter sets for all tZ/tN/PDG, using them the tables can be created/updated |
---|
467 | G4double G4QProtonElasticCrossSection::GetPTables(G4double LP, G4double ILP, G4int PDG, |
---|
468 | G4int tgZ, G4int tgN) |
---|
469 | { |
---|
470 | // @@ At present all nA==pA ---------> Each neucleus can have not more than 51 parameters |
---|
471 | static const G4double pwd=2727; |
---|
472 | const G4int n_npel=24; // #of parameters for np-elastic (<nPoints=128) |
---|
473 | const G4int n_ppel=32; // #of parameters for pp-elastic (<nPoints=128) |
---|
474 | // -0- -1- -2- -3- -4- -5- -6- -7- -8- -9--10--11--12--13- -14- |
---|
475 | G4double np_el[n_npel]={12.,.05,.0001,5.,.35,6.75,.14,19.,.6,6.75,.14,13.,.14,.6,.00013, |
---|
476 | 75.,.001,7.2,4.32,.012,2.5,0.0,12.,.34}; |
---|
477 | // -15--16--17- -18- -19--20--21--22--23- |
---|
478 | // -0- -1- -2- -3- -4- -5- -6- -7- -8--9--10--11--12--13- |
---|
479 | G4double pp_el[n_ppel]={2.865,18.9,.6461,3.,9.,.425,.4276,.0022,5.,74.,3.,3.4,.2,.17, |
---|
480 | .001,8.,.055,3.64,5.e-5,4000.,1500.,.46,1.2e6,3.5e6,5.e-5,1.e10, |
---|
481 | 8.5e8,1.e10,1.1,3.4e6,6.8e6,0.}; |
---|
482 | // -14--15- -16- -17- -18- -19- -20- -21- -22- -23- -24- -25- |
---|
483 | // -26- -27- -28- -29- -30- -31- |
---|
484 | if(PDG==2212) |
---|
485 | { |
---|
486 | // -- Total pp elastic cross section cs & s1/b1 (main), s2/b2 (tail1), s3/b3 (tail2) -- |
---|
487 | //p2=p*p;p3=p2*p;sp=sqrt(p);p2s=p2*sp;lp=log(p);dl1=lp-(3.=par(3));p4=p2*p2; p=|3-mom| |
---|
488 | //CS=2.865/p2s/(1+.0022/p2s)+(18.9+.6461*dl1*dl1+9./p)/(1.+.425*lp)/(1.+.4276/p4); |
---|
489 | // par(0) par(7) par(1) par(2) par(4) par(5) par(6) |
---|
490 | //dl2=lp-5., s1=(74.+3.*dl2*dl2)/(1+3.4/p4/p)+(.2/p2+17.*p)/(p4+.001*sp), |
---|
491 | // par(8) par(9) par(10) par(11) par(12)par(13) par(14) |
---|
492 | // b1=8.*p**.055/(1.+3.64/p3); s2=5.e-5+4000./(p4+1500.*p); b2=.46+1.2e6/(p4+3.5e6/sp); |
---|
493 | // par(15) par(16) par(17) par(18) par(19) par(20) par(21) par(22) par(23) |
---|
494 | // s3=5.e-5+1.e10/(p4*p4+8.5e8*p2+1.e10); b3=1.1+3.4e6/(p4+6.8e6); ss=0. |
---|
495 | // par(24) par(25) par(26) par(27) par(28) par(29) par(30) par(31) |
---|
496 | // |
---|
497 | if(lastPAR[nLast]!=pwd) // A unique flag to avoid the repeatable definition |
---|
498 | { |
---|
499 | if ( tgZ == 0 && tgN == 1 ) |
---|
500 | { |
---|
501 | for (G4int ip=0; ip<n_npel; ip++) lastPAR[ip]=np_el[ip]; // pn |
---|
502 | |
---|
503 | } |
---|
504 | else if ( tgZ == 1 && tgN == 0 ) |
---|
505 | { |
---|
506 | for (G4int ip=0; ip<n_ppel; ip++) lastPAR[ip]=pp_el[ip]; // pp |
---|
507 | } |
---|
508 | else |
---|
509 | { |
---|
510 | G4double a=tgZ+tgN; |
---|
511 | G4double sa=std::sqrt(a); |
---|
512 | G4double ssa=std::sqrt(sa); |
---|
513 | G4double asa=a*sa; |
---|
514 | G4double a2=a*a; |
---|
515 | G4double a3=a2*a; |
---|
516 | G4double a4=a3*a; |
---|
517 | G4double a5=a4*a; |
---|
518 | G4double a6=a4*a2; |
---|
519 | G4double a7=a6*a; |
---|
520 | G4double a8=a7*a; |
---|
521 | G4double a9=a8*a; |
---|
522 | G4double a10=a5*a5; |
---|
523 | G4double a12=a6*a6; |
---|
524 | G4double a14=a7*a7; |
---|
525 | G4double a16=a8*a8; |
---|
526 | G4double a17=a16*a; |
---|
527 | G4double a20=a16*a4; |
---|
528 | G4double a32=a16*a16; |
---|
529 | // Reaction cross-section parameters (pel=peh_fit.f) |
---|
530 | lastPAR[0]=5./(1.+22./asa); // p1 |
---|
531 | lastPAR[1]=4.8*std::pow(a,1.14)/(1.+3.6/a3); // p2 |
---|
532 | lastPAR[2]=1./(1.+4.E-3*a4)+2.E-6*a3/(1.+1.3E-6*a3); // p3 |
---|
533 | lastPAR[3]=1.3*a; // p4 |
---|
534 | lastPAR[4]=3.E-8*a3/(1.+4.E-7*a4); // p5 |
---|
535 | lastPAR[5]=.07*asa/(1.+.009*a2); // p6 |
---|
536 | lastPAR[6]=(3.+3.E-16*a20)/(1.+a20*(2.E-16/a+3.E-19*a)); // p7 (11) |
---|
537 | lastPAR[7]=(5.E-9*a4*sa+.27/a)/(1.+5.E16/a20)/(1.+6.E-9*a4)+.015/a2; // p8 |
---|
538 | lastPAR[8]=(.001*a+.07/a)/(1.+5.E13/a16+5.E-7*a3)+.0003/sa; // p9 (10) |
---|
539 | // @@ the differential cross-section is parameterized separately for A>6 & A<7 |
---|
540 | if(a<6.5) |
---|
541 | { |
---|
542 | G4double a28=a16*a12; |
---|
543 | // The main pre-exponent (pel_sg) |
---|
544 | lastPAR[ 9]=4000*a; // p1 |
---|
545 | lastPAR[10]=1.2e7*a8+380*a17; // p2 |
---|
546 | lastPAR[11]=.7/(1.+4.e-12*a16); // p3 |
---|
547 | lastPAR[12]=2.5/a8/(a4+1.e-16*a32); // p4 |
---|
548 | lastPAR[13]=.28*a; // p5 |
---|
549 | lastPAR[14]=1.2*a2+2.3; // p6 |
---|
550 | lastPAR[15]=3.8/a; // p7 |
---|
551 | // The main slope (pel_sl) |
---|
552 | lastPAR[16]=.01/(1.+.0024*a5); // p1 |
---|
553 | lastPAR[17]=.2*a; // p2 |
---|
554 | lastPAR[18]=9.e-7/(1.+.035*a5); // p3 |
---|
555 | lastPAR[19]=(42.+2.7e-11*a16)/(1.+.14*a); // p4 |
---|
556 | // The main quadratic (pel_sh) |
---|
557 | lastPAR[20]=2.25*a3; // p1 |
---|
558 | lastPAR[21]=18.; // p2 |
---|
559 | lastPAR[22]=2.4e-3*a8/(1.+2.6e-4*a7); // p3 |
---|
560 | lastPAR[23]=3.5e-36*a32*a8/(1.+5.e-15*a32/a); // p4 |
---|
561 | // The 1st max pre-exponent (pel_qq) |
---|
562 | lastPAR[24]=1.e5/(a8+2.5e12/a16); // p1 |
---|
563 | lastPAR[25]=8.e7/(a12+1.e-27*a28*a28); // p2 |
---|
564 | lastPAR[26]=.0006*a3; // p3 |
---|
565 | // The 1st max slope (pel_qs) |
---|
566 | lastPAR[27]=10.+4.e-8*a12*a; // p1 |
---|
567 | lastPAR[28]=.114; // p2 |
---|
568 | lastPAR[29]=.003; // p3 |
---|
569 | lastPAR[30]=2.e-23; // p4 |
---|
570 | // The effective pre-exponent (pel_ss) |
---|
571 | lastPAR[31]=1./(1.+.0001*a8); // p1 |
---|
572 | lastPAR[32]=1.5e-4/(1.+5.e-6*a12); // p2 |
---|
573 | lastPAR[33]=.03; // p3 |
---|
574 | // The effective slope (pel_sb) |
---|
575 | lastPAR[34]=a/2; // p1 |
---|
576 | lastPAR[35]=2.e-7*a4; // p2 |
---|
577 | lastPAR[36]=4.; // p3 |
---|
578 | lastPAR[37]=64./a3; // p4 |
---|
579 | // The gloria pre-exponent (pel_us) |
---|
580 | lastPAR[38]=1.e8*std::exp(.32*asa); // p1 |
---|
581 | lastPAR[39]=20.*std::exp(.45*asa); // p2 |
---|
582 | lastPAR[40]=7.e3+2.4e6/a5; // p3 |
---|
583 | lastPAR[41]=2.5e5*std::exp(.085*a3); // p4 |
---|
584 | lastPAR[42]=2.5*a; // p5 |
---|
585 | // The gloria slope (pel_ub) |
---|
586 | lastPAR[43]=920.+.03*a8*a3; // p1 |
---|
587 | lastPAR[44]=93.+.0023*a12; // p2 |
---|
588 | #ifdef pdebug |
---|
589 | G4cout<<"G4QElCS::CalcCS:la "<<lastPAR[38]<<", "<<lastPAR[39]<<", "<<lastPAR[40] |
---|
590 | <<", "<<lastPAR[42]<<", "<<lastPAR[43]<<", "<<lastPAR[44]<<G4endl; |
---|
591 | #endif |
---|
592 | } |
---|
593 | else |
---|
594 | { |
---|
595 | G4double p1a10=2.2e-28*a10; |
---|
596 | G4double r4a16=6.e14/a16; |
---|
597 | G4double s4a16=r4a16*r4a16; |
---|
598 | // a24 |
---|
599 | // a36 |
---|
600 | // The main pre-exponent (peh_sg) |
---|
601 | lastPAR[ 9]=4.5*std::pow(a,1.15); // p1 |
---|
602 | lastPAR[10]=.06*std::pow(a,.6); // p2 |
---|
603 | lastPAR[11]=.6*a/(1.+2.e15/a16); // p3 |
---|
604 | lastPAR[12]=.17/(a+9.e5/a3+1.5e33/a32); // p4 |
---|
605 | lastPAR[13]=(.001+7.e-11*a5)/(1.+4.4e-11*a5); // p5 |
---|
606 | lastPAR[14]=(p1a10*p1a10+2.e-29)/(1.+2.e-22*a12); // p6 |
---|
607 | // The main slope (peh_sl) |
---|
608 | lastPAR[15]=400./a12+2.e-22*a9; // p1 |
---|
609 | lastPAR[16]=1.e-32*a12/(1.+5.e22/a14); // p2 |
---|
610 | lastPAR[17]=1000./a2+9.5*sa*ssa; // p3 |
---|
611 | lastPAR[18]=4.e-6*a*asa+1.e11/a16; // p4 |
---|
612 | lastPAR[19]=(120./a+.002*a2)/(1.+2.e14/a16); // p5 |
---|
613 | lastPAR[20]=9.+100./a; // p6 |
---|
614 | // The main quadratic (peh_sh) |
---|
615 | lastPAR[21]=.002*a3+3.e7/a6; // p1 |
---|
616 | lastPAR[22]=7.e-15*a4*asa; // p2 |
---|
617 | lastPAR[23]=9000./a4; // p3 |
---|
618 | // The 1st max pre-exponent (peh_qq) |
---|
619 | lastPAR[24]=.0011*asa/(1.+3.e34/a32/a4); // p1 |
---|
620 | lastPAR[25]=1.e-5*a2+2.e14/a16; // p2 |
---|
621 | lastPAR[26]=1.2e-11*a2/(1.+1.5e19/a12); // p3 |
---|
622 | lastPAR[27]=.016*asa/(1.+5.e16/a16); // p4 |
---|
623 | // The 1st max slope (peh_qs) |
---|
624 | lastPAR[28]=.002*a4/(1.+7.e7/std::pow(a-6.83,14)); // p1 |
---|
625 | lastPAR[29]=2.e6/a6+7.2/std::pow(a,.11); // p2 |
---|
626 | lastPAR[30]=11.*a3/(1.+7.e23/a16/a8); // p3 |
---|
627 | lastPAR[31]=100./asa; // p4 |
---|
628 | // The 2nd max pre-exponent (peh_ss) |
---|
629 | lastPAR[32]=(.1+4.4e-5*a2)/(1.+5.e5/a4); // p1 |
---|
630 | lastPAR[33]=3.5e-4*a2/(1.+1.e8/a8); // p2 |
---|
631 | lastPAR[34]=1.3+3.e5/a4; // p3 |
---|
632 | lastPAR[35]=500./(a2+50.)+3; // p4 |
---|
633 | lastPAR[36]=1.e-9/a+s4a16*s4a16; // p5 |
---|
634 | // The 2nd max slope (peh_sb) |
---|
635 | lastPAR[37]=.4*asa+3.e-9*a6; // p1 |
---|
636 | lastPAR[38]=.0005*a5; // p2 |
---|
637 | lastPAR[39]=.002*a5; // p3 |
---|
638 | lastPAR[40]=10.; // p4 |
---|
639 | // The effective pre-exponent (peh_us) |
---|
640 | lastPAR[41]=.05+.005*a; // p1 |
---|
641 | lastPAR[42]=7.e-8/sa; // p2 |
---|
642 | lastPAR[43]=.8*sa; // p3 |
---|
643 | lastPAR[44]=.02*sa; // p4 |
---|
644 | lastPAR[45]=1.e8/a3; // p5 |
---|
645 | lastPAR[46]=3.e32/(a32+1.e32); // p6 |
---|
646 | // The effective slope (peh_ub) |
---|
647 | lastPAR[47]=24.; // p1 |
---|
648 | lastPAR[48]=20./sa; // p2 |
---|
649 | lastPAR[49]=7.e3*a/(sa+1.); // p3 |
---|
650 | lastPAR[50]=900.*sa/(1.+500./a3); // p4 |
---|
651 | #ifdef pdebug |
---|
652 | G4cout<<"G4QElCS::CalcCS:ha "<<lastPAR[41]<<", "<<lastPAR[42]<<", "<<lastPAR[43] |
---|
653 | <<", "<<lastPAR[44]<<", "<<lastPAR[45]<<", "<<lastPAR[46]<<G4endl; |
---|
654 | #endif |
---|
655 | } |
---|
656 | // Parameter for lowEnergyNeutrons |
---|
657 | lastPAR[51]=1.e15+2.e27/a4/(1.+2.e-18*a16); |
---|
658 | } |
---|
659 | lastPAR[nLast]=pwd; |
---|
660 | // and initialize the zero element of the table |
---|
661 | G4double lp=lPMin; // ln(momentum) |
---|
662 | G4bool memCS=onlyCS; // ?? |
---|
663 | onlyCS=false; |
---|
664 | lastCST[0]=GetTabValues(lp, PDG, tgZ, tgN); // Calculate AMDB tables |
---|
665 | onlyCS=memCS; |
---|
666 | lastSST[0]=theSS; |
---|
667 | lastS1T[0]=theS1; |
---|
668 | lastB1T[0]=theB1; |
---|
669 | lastS2T[0]=theS2; |
---|
670 | lastB2T[0]=theB2; |
---|
671 | lastS3T[0]=theS3; |
---|
672 | lastB3T[0]=theB3; |
---|
673 | lastS4T[0]=theS4; |
---|
674 | lastB4T[0]=theB4; |
---|
675 | #ifdef pdebug |
---|
676 | G4cout<<"G4QProtonElasticCrossSection::GetPTables:ip=0(init), lp="<<lp<<",S1="<<theS1 |
---|
677 | <<",B1="<<theB1<<",S2="<<theS2<<",B2="<<theB3<<",S3="<<theS3 |
---|
678 | <<",B3="<<theB3<<",S4="<<theS4<<",B4="<<theB4<<G4endl; |
---|
679 | #endif |
---|
680 | } |
---|
681 | if(LP>ILP) |
---|
682 | { |
---|
683 | G4int ini = static_cast<int>((ILP-lPMin+.000001)/dlnP)+1; // already inited till this |
---|
684 | if(ini<0) ini=0; |
---|
685 | if(ini<nPoints) |
---|
686 | { |
---|
687 | G4int fin = static_cast<int>((LP-lPMin)/dlnP)+1; // final bin of initialization |
---|
688 | if(fin>=nPoints) fin=nLast; // Limit of the tabular initialization |
---|
689 | if(fin>=ini) |
---|
690 | { |
---|
691 | G4double lp=0.; |
---|
692 | for(G4int ip=ini; ip<=fin; ip++) // Calculate tabular CS,S1,B1,S2,B2,S3,B3 |
---|
693 | { |
---|
694 | lp=lPMin+ip*dlnP; // ln(momentum) |
---|
695 | G4bool memCS=onlyCS; |
---|
696 | onlyCS=false; |
---|
697 | lastCST[ip]=GetTabValues(lp, PDG, tgZ, tgN); // Calculate AMDB tables (ret CS) |
---|
698 | onlyCS=memCS; |
---|
699 | lastSST[ip]=theSS; |
---|
700 | lastS1T[ip]=theS1; |
---|
701 | lastB1T[ip]=theB1; |
---|
702 | lastS2T[ip]=theS2; |
---|
703 | lastB2T[ip]=theB2; |
---|
704 | lastS3T[ip]=theS3; |
---|
705 | lastB3T[ip]=theB3; |
---|
706 | lastS4T[ip]=theS4; |
---|
707 | lastB4T[ip]=theB4; |
---|
708 | #ifdef pdebug |
---|
709 | G4cout<<"G4QProtonElasticCrossSection::GetPTables:ip="<<ip<<",lp="<<lp<<",S1=" |
---|
710 | <<theS1<<",B1="<<theB1<<",S2="<<theS2<<",B2="<<theB2<<",S3=" |
---|
711 | <<theS3<<",B3="<<theB3<<",S4="<<theS4<<",B4="<<theB4<<G4endl; |
---|
712 | #endif |
---|
713 | } |
---|
714 | return lp; |
---|
715 | } |
---|
716 | else G4cout<<"*Warning*G4QProtonElasticCrossSection::GetPTables: PDG="<<PDG<<", Z=" |
---|
717 | <<tgZ<<", N="<<tgN<<", i="<<ini<<" > fin="<<fin<<", LP="<<LP<<" > ILP=" |
---|
718 | <<ILP<<" nothing is done!"<<G4endl; |
---|
719 | } |
---|
720 | else G4cout<<"*Warning*G4QProtonElasticCrossSection::GetPTables: PDG="<<PDG<<", Z=" |
---|
721 | <<tgZ<<", N="<<tgN<<", i="<<ini<<">= max="<<nPoints<<", LP="<<LP |
---|
722 | <<" > ILP="<<ILP<<", lPMax="<<lPMax<<" nothing is done!"<<G4endl; |
---|
723 | } |
---|
724 | #ifdef pdebug |
---|
725 | else G4cout<<"*Warning*G4QProtonElasticCrossSection::GetPTables:PDG="<<PDG<<", Z="<<tgZ |
---|
726 | <<", N="<<tgN<<", LP="<<LP<<" <= ILP="<<ILP<<" nothing is done!"<<G4endl; |
---|
727 | #endif |
---|
728 | } |
---|
729 | else |
---|
730 | { |
---|
731 | G4cout<<"*Error*G4QProtonElasticCrossSection::GetPTables: PDG="<<PDG<<", Z="<<tgZ |
---|
732 | <<", N="<<tgN<<", while it is defined only for PDG=2212"<<G4endl; |
---|
733 | throw G4QException("G4QProtonElasticCrossSection::GetPTables: only pA're implemented"); |
---|
734 | } |
---|
735 | return ILP; |
---|
736 | } |
---|
737 | |
---|
738 | // Returns Q2=-t in independent units (MeV^2) (all internal calculations are in GeV) |
---|
739 | G4double G4QProtonElasticCrossSection::GetExchangeT(G4int tgZ, G4int tgN, G4int PDG) |
---|
740 | { |
---|
741 | static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt; |
---|
742 | static const G4double third=1./3.; |
---|
743 | static const G4double fifth=1./5.; |
---|
744 | static const G4double sevth=1./7.; |
---|
745 | #ifdef tdebug |
---|
746 | G4cout<<"G4QProtElCS::GetExcT: F="<<onlyCS<<",Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
747 | #endif |
---|
748 | if(PDG!=2212) G4cout<<"**Warning*G4QProtonElasticCrossSection::GetExT:PDG="<<PDG<<G4endl; |
---|
749 | if(onlyCS) G4cout<<"**Warning*G4QProtonElasticCrossSection::GetExchanT:onlyCS=1"<<G4endl; |
---|
750 | if(lastLP<-4.3) return lastTM*GeVSQ*G4UniformRand();// S-wave for p<14 MeV/c (kinE<.1MeV) |
---|
751 | G4double q2=0.; |
---|
752 | if(tgZ==1 && tgN==0) // ===> p+p=p+p |
---|
753 | { |
---|
754 | #ifdef tdebug |
---|
755 | G4cout<<"G4QElasticCS::GetExchangeT: TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1<<",S2=" |
---|
756 | <<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",GeV2="<<GeVSQ<<G4endl; |
---|
757 | #endif |
---|
758 | G4double E1=lastTM*theB1; |
---|
759 | G4double R1=(1.-std::exp(-E1)); |
---|
760 | #ifdef tdebug |
---|
761 | G4double ts1=-std::log(1.-R1)/theB1; |
---|
762 | G4double ds1=std::fabs(ts1-lastTM)/lastTM; |
---|
763 | if(ds1>.0001) |
---|
764 | G4cout<<"*Warning*G4QElCS::GetExT:1p "<<ts1<<"#"<<lastTM<<",d="<<ds1 |
---|
765 | <<",R1="<<R1<<",E1="<<E1<<G4endl; |
---|
766 | #endif |
---|
767 | G4double E2=lastTM*theB2; |
---|
768 | G4double R2=(1.-std::exp(-E2*E2*E2)); |
---|
769 | #ifdef tdebug |
---|
770 | G4double ts2=std::pow(-std::log(1.-R2),.333333333)/theB2; |
---|
771 | G4double ds2=std::fabs(ts2-lastTM)/lastTM; |
---|
772 | if(ds2>.0001) |
---|
773 | G4cout<<"*Warning*G4QElCS::GetExT:2p "<<ts2<<"#"<<lastTM<<",d="<<ds2 |
---|
774 | <<",R2="<<R2<<",E2="<<E2<<G4endl; |
---|
775 | #endif |
---|
776 | G4double E3=lastTM*theB3; |
---|
777 | G4double R3=(1.-std::exp(-E3)); |
---|
778 | #ifdef tdebug |
---|
779 | G4double ts3=-std::log(1.-R3)/theB3; |
---|
780 | G4double ds3=std::fabs(ts3-lastTM)/lastTM; |
---|
781 | if(ds3>.0001) |
---|
782 | G4cout<<"*Warning*G4QElCS::GetExT:3p "<<ts3<<"#"<<lastTM<<",d="<<ds3 |
---|
783 | <<",R3="<<R1<<",E3="<<E3<<G4endl; |
---|
784 | #endif |
---|
785 | G4double I1=R1*theS1/theB1; |
---|
786 | G4double I2=R2*theS2; |
---|
787 | G4double I3=R3*theS3; |
---|
788 | G4double I12=I1+I2; |
---|
789 | G4double rand=(I12+I3)*G4UniformRand(); |
---|
790 | if (rand<I1 ) |
---|
791 | { |
---|
792 | G4double ran=R1*G4UniformRand(); |
---|
793 | if(ran>1.) ran=1.; |
---|
794 | q2=-std::log(1.-ran)/theB1; |
---|
795 | } |
---|
796 | else if(rand<I12) |
---|
797 | { |
---|
798 | G4double ran=R2*G4UniformRand(); |
---|
799 | if(ran>1.) ran=1.; |
---|
800 | q2=-std::log(1.-ran); |
---|
801 | if(q2<0.) q2=0.; |
---|
802 | q2=std::pow(q2,third)/theB2; |
---|
803 | } |
---|
804 | else |
---|
805 | { |
---|
806 | G4double ran=R3*G4UniformRand(); |
---|
807 | if(ran>1.) ran=1.; |
---|
808 | q2=-std::log(1.-ran)/theB3; |
---|
809 | } |
---|
810 | } |
---|
811 | else |
---|
812 | { |
---|
813 | G4double a=tgZ+tgN; |
---|
814 | #ifdef tdebug |
---|
815 | G4cout<<"G4QElCS::GetExT: a="<<a<<",t="<<lastTM<<",S1="<<theS1<<",B1="<<theB1<<",SS=" |
---|
816 | <<theSS<<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4=" |
---|
817 | <<theS4<<",B4="<<theB4<<G4endl; |
---|
818 | #endif |
---|
819 | G4double E1=lastTM*(theB1+lastTM*theSS); |
---|
820 | G4double R1=(1.-std::exp(-E1)); |
---|
821 | G4double tss=theSS+theSS; // for future solution of quadratic equation (imediate check) |
---|
822 | #ifdef tdebug |
---|
823 | G4double ts1=-std::log(1.-R1)/theB1; |
---|
824 | if(std::fabs(tss)>1.e-7) ts1=(std::sqrt(theB1*(theB1+(tss+tss)*ts1))-theB1)/tss; |
---|
825 | G4double ds1=(ts1-lastTM)/lastTM; |
---|
826 | if(ds1>.0001) |
---|
827 | G4cout<<"*Warning*G4QElCS::GetExT:1a "<<ts1<<"#"<<lastTM<<",d="<<ds1 |
---|
828 | <<",R1="<<R1<<",E1="<<E1<<G4endl; |
---|
829 | #endif |
---|
830 | G4double tm2=lastTM*lastTM; |
---|
831 | G4double E2=lastTM*tm2*theB2; // power 3 for lowA, 5 for HighA (1st) |
---|
832 | if(a>6.5)E2*=tm2; // for heavy nuclei |
---|
833 | G4double R2=(1.-std::exp(-E2)); |
---|
834 | #ifdef tdebug |
---|
835 | G4double ts2=-std::log(1.-R2)/theB2; |
---|
836 | if(a<6.5)ts2=std::pow(ts2,third); |
---|
837 | else ts2=std::pow(ts2,fifth); |
---|
838 | G4double ds2=std::fabs(ts2-lastTM)/lastTM; |
---|
839 | if(ds2>.0001) |
---|
840 | G4cout<<"*Warning*G4QElCS::GetExT:2a "<<ts2<<"#"<<lastTM<<",d="<<ds2 |
---|
841 | <<",R2="<<R2<<",E2="<<E2<<G4endl; |
---|
842 | #endif |
---|
843 | G4double E3=lastTM*theB3; |
---|
844 | if(a>6.5)E3*=tm2*tm2*tm2; // power 1 for lowA, 7 (2nd) for HighA |
---|
845 | G4double R3=(1.-std::exp(-E3)); |
---|
846 | #ifdef tdebug |
---|
847 | G4double ts3=-std::log(1.-R3)/theB3; |
---|
848 | if(a>6.5)ts3=std::pow(ts3,sevth); |
---|
849 | G4double ds3=std::fabs(ts3-lastTM)/lastTM; |
---|
850 | if(ds3>.0001) |
---|
851 | G4cout<<"*Warning*G4QElCS::GetExT:3a "<<ts3<<"#"<<lastTM<<",d="<<ds3 |
---|
852 | <<",R3="<<R3<<",E3="<<E3<<G4endl; |
---|
853 | #endif |
---|
854 | G4double E4=lastTM*theB4; |
---|
855 | G4double R4=(1.-std::exp(-E4)); |
---|
856 | #ifdef tdebug |
---|
857 | G4double ts4=-std::log(1.-R4)/theB4; |
---|
858 | G4double ds4=std::fabs(ts4-lastTM)/lastTM; |
---|
859 | if(ds4>.0001) |
---|
860 | G4cout<<"*Warning*G4QElCS::GetExT:4a "<<ts4<<"#"<<lastTM<<",d="<<ds4 |
---|
861 | <<",R4="<<R4<<",E4="<<E4<<G4endl; |
---|
862 | #endif |
---|
863 | G4double I1=R1*theS1; |
---|
864 | G4double I2=R2*theS2; |
---|
865 | G4double I3=R3*theS3; |
---|
866 | G4double I4=R4*theS4; |
---|
867 | G4double I12=I1+I2; |
---|
868 | G4double I13=I12+I3; |
---|
869 | G4double rand=(I13+I4)*G4UniformRand(); |
---|
870 | #ifdef tdebug |
---|
871 | G4cout<<"G4QElCS::GtExT:1="<<I1<<",2="<<I2<<",3="<<I3<<",4="<<I4<<",r="<<rand<<G4endl; |
---|
872 | #endif |
---|
873 | if(rand<I1) |
---|
874 | { |
---|
875 | G4double ran=R1*G4UniformRand(); |
---|
876 | if(ran>1.) ran=1.; |
---|
877 | q2=-std::log(1.-ran)/theB1; |
---|
878 | if(std::fabs(tss)>1.e-7) q2=(std::sqrt(theB1*(theB1+(tss+tss)*q2))-theB1)/tss; |
---|
879 | #ifdef tdebug |
---|
880 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<",ss="<<tss/2<<",b1="<<theB1<<",t1="<<ts1<<G4endl; |
---|
881 | #endif |
---|
882 | } |
---|
883 | else if(rand<I12) |
---|
884 | { |
---|
885 | G4double ran=R2*G4UniformRand(); |
---|
886 | if(ran>1.) ran=1.; |
---|
887 | q2=-std::log(1.-ran)/theB2; |
---|
888 | if(q2<0.) q2=0.; |
---|
889 | if(a<6.5) q2=std::pow(q2,third); |
---|
890 | else q2=std::pow(q2,fifth); |
---|
891 | #ifdef tdebug |
---|
892 | G4cout<<"G4QElCS::GetExT: Q2="<<q2<<", r2="<<R2<<", b2="<<theB2<<",t2="<<ts2<<G4endl; |
---|
893 | #endif |
---|
894 | } |
---|
895 | else if(rand<I13) |
---|
896 | { |
---|
897 | G4double ran=R3*G4UniformRand(); |
---|
898 | if(ran>1.) ran=1.; |
---|
899 | q2=-std::log(1.-ran)/theB3; |
---|
900 | if(q2<0.) q2=0.; |
---|
901 | if(a>6.5) q2=std::pow(q2,sevth); |
---|
902 | #ifdef tdebug |
---|
903 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<", r3="<<R2<<", b3="<<theB2<<",t3="<<ts2<<G4endl; |
---|
904 | #endif |
---|
905 | } |
---|
906 | else |
---|
907 | { |
---|
908 | G4double ran=R4*G4UniformRand(); |
---|
909 | if(ran>1.) ran=1.; |
---|
910 | q2=-std::log(1.-ran)/theB4; |
---|
911 | if(a<6.5) q2=lastTM-q2; // u reduced for lightA (starts from 0) |
---|
912 | #ifdef tdebug |
---|
913 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<",m="<<lastTM<<",b4="<<theB3<<",t4="<<ts3<<G4endl; |
---|
914 | #endif |
---|
915 | } |
---|
916 | } |
---|
917 | if(q2<0.) q2=0.; |
---|
918 | if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElasticCrossSect::GetExchangeT: -t="<<q2<<G4endl; |
---|
919 | if(q2>lastTM) |
---|
920 | { |
---|
921 | #ifdef tdebug |
---|
922 | G4cout<<"*Warning*G4QElasticCrossSect::GetExT:-t="<<q2<<">"<<lastTM<<G4endl; |
---|
923 | #endif |
---|
924 | q2=lastTM; |
---|
925 | } |
---|
926 | return q2*GeVSQ; |
---|
927 | } |
---|
928 | |
---|
929 | // Returns B in independent units (MeV^-2) (all internal calculations are in GeV) see ExT |
---|
930 | G4double G4QProtonElasticCrossSection::GetSlope(G4int tgZ, G4int tgN, G4int PDG) |
---|
931 | { |
---|
932 | static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt; |
---|
933 | #ifdef tdebug |
---|
934 | G4cout<<"G4QElasticCS::GetSlope:"<<onlyCS<<", Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
935 | #endif |
---|
936 | if(onlyCS) G4cout<<"*Warning*G4QProtonElasticCrossSection::GetSlope:onlyCS=true"<<G4endl; |
---|
937 | if(lastLP<-4.3) return 0.; // S-wave for p<14 MeV/c (kinE<.1MeV) |
---|
938 | if(PDG!=2212) |
---|
939 | { |
---|
940 | G4cout<<"*Error*G4QProtonElasticCrossSection::GetSlope: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
941 | <<tgN<<", while it is defined only for PDG=2212"<<G4endl; |
---|
942 | throw G4QException("G4QProtonElasticCrossSection::GetSlope: pA are implemented"); |
---|
943 | } |
---|
944 | if(theB1<0.) theB1=0.; |
---|
945 | if(!(theB1>=-1.||theB1<=1.))G4cout<<"*NAN*G4QElasticCrossSect::Getslope:"<<theB1<<G4endl; |
---|
946 | return theB1/GeVSQ; |
---|
947 | } |
---|
948 | |
---|
949 | // Returns half max(Q2=-t) in independent units (MeV^2) |
---|
950 | G4double G4QProtonElasticCrossSection::GetHMaxT() |
---|
951 | { |
---|
952 | static const G4double HGeVSQ=gigaelectronvolt*gigaelectronvolt/2.; |
---|
953 | return lastTM*HGeVSQ; |
---|
954 | } |
---|
955 | |
---|
956 | // lastLP is used, so calculating tables, one need to remember and then recover lastLP |
---|
957 | G4double G4QProtonElasticCrossSection::GetTabValues(G4double lp, G4int PDG, G4int tgZ, |
---|
958 | G4int tgN) |
---|
959 | { |
---|
960 | if(PDG!=2212) G4cout<<"*Warning*G4QProtonElasticCrossSection::GetTabV:PDG="<<PDG<<G4endl; |
---|
961 | if(tgZ<0 || tgZ>92) |
---|
962 | { |
---|
963 | G4cout<<"*Warning*G4QProtonElCS::GetTabValue: (1-92) No isotopes for Z="<<tgZ<<G4endl; |
---|
964 | return 0.; |
---|
965 | } |
---|
966 | G4int iZ=tgZ-1; // Z index |
---|
967 | if(iZ<0) |
---|
968 | { |
---|
969 | iZ=0; // conversion of the neutron target to the proton target |
---|
970 | tgZ=1; |
---|
971 | tgN=0; |
---|
972 | } |
---|
973 | //if(nN[iZ][0] < 0) |
---|
974 | //{ |
---|
975 | #ifdef isodebug |
---|
976 | // G4cout<<"*Warning*G4QElasticCS::GetTabValue: No isotopes for Z="<<tgZ<<G4endl; |
---|
977 | #endif |
---|
978 | // return 0.; |
---|
979 | //} |
---|
980 | #ifdef pdebug |
---|
981 | G4cout<<"G4QElasticCS::GetTabVal: lp="<<lp<<",Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
982 | #endif |
---|
983 | G4double p=std::exp(lp); // momentum |
---|
984 | G4double sp=std::sqrt(p); // sqrt(p) |
---|
985 | G4double p2=p*p; |
---|
986 | G4double p3=p2*p; |
---|
987 | G4double p4=p3*p; |
---|
988 | if ( tgZ == 1 && tgN == 0 ) // pp/nn |
---|
989 | { |
---|
990 | G4double p2s=p2*sp; |
---|
991 | G4double dl2=lp-lastPAR[8]; |
---|
992 | theSS=lastPAR[31]; |
---|
993 | theS1=(lastPAR[9]+lastPAR[10]*dl2*dl2)/(1.+lastPAR[11]/p4/p)+ |
---|
994 | (lastPAR[12]/p2+lastPAR[13]*p)/(p4+lastPAR[14]*sp); |
---|
995 | theB1=lastPAR[15]*std::pow(p,lastPAR[16])/(1.+lastPAR[17]/p3); |
---|
996 | theS2=lastPAR[18]+lastPAR[19]/(p4+lastPAR[20]*p); |
---|
997 | theB2=lastPAR[21]+lastPAR[22]/(p4+lastPAR[23]/sp); |
---|
998 | theS3=lastPAR[24]+lastPAR[25]/(p4*p4+lastPAR[26]*p2+lastPAR[27]); |
---|
999 | theB3=lastPAR[28]+lastPAR[29]/(p4+lastPAR[30]); |
---|
1000 | theS4=0.; |
---|
1001 | theB4=0.; |
---|
1002 | #ifdef tdebug |
---|
1003 | G4cout<<"G4QElasticCS::GetTableValues:(pp) TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1 |
---|
1004 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS1<<",B3="<<theB1<<G4endl; |
---|
1005 | #endif |
---|
1006 | // Returns the total elastic pp cross-section (to avoid spoiling lastSIG) |
---|
1007 | G4double dl1=lp-lastPAR[3]; |
---|
1008 | return lastPAR[0]/p2s/(1.+lastPAR[7]/p2s)+(lastPAR[1]+lastPAR[2]*dl1*dl1+lastPAR[4]/p) |
---|
1009 | /(1.+lastPAR[5]*lp)/(1.+lastPAR[6]/p4); |
---|
1010 | } |
---|
1011 | else |
---|
1012 | { |
---|
1013 | G4double p5=p4*p; |
---|
1014 | G4double p6=p5*p; |
---|
1015 | G4double p8=p6*p2; |
---|
1016 | G4double p10=p8*p2; |
---|
1017 | G4double p12=p10*p2; |
---|
1018 | G4double p16=p8*p8; |
---|
1019 | //G4double p24=p16*p8; |
---|
1020 | G4double dl=lp-5.; |
---|
1021 | G4double a=tgZ+tgN; |
---|
1022 | G4double pah=std::pow(p,a/2); |
---|
1023 | G4double pa=pah*pah; |
---|
1024 | G4double pa2=pa*pa; |
---|
1025 | if(a<6.5) |
---|
1026 | { |
---|
1027 | theS1=lastPAR[9]/(1.+lastPAR[10]*p4*pa)+lastPAR[11]/(p4+lastPAR[12]*p4/pa2)+ |
---|
1028 | (lastPAR[13]*dl*dl+lastPAR[14])/(1.+lastPAR[15]/p2); |
---|
1029 | theB1=(lastPAR[16]+lastPAR[17]*p2)/(p4+lastPAR[18]/pah)+lastPAR[19]; |
---|
1030 | theSS=lastPAR[20]/(1.+lastPAR[21]/p2)+lastPAR[22]/(p6/pa+lastPAR[23]/p16); |
---|
1031 | theS2=lastPAR[24]/(pa/p2+lastPAR[25]/p4)+lastPAR[26]; |
---|
1032 | theB2=lastPAR[27]*std::pow(p,lastPAR[28])+lastPAR[29]/(p8+lastPAR[30]/p16); |
---|
1033 | theS3=lastPAR[31]/(pa*p+lastPAR[32]/pa)+lastPAR[33]; |
---|
1034 | theB3=lastPAR[34]/(p3+lastPAR[35]/p6)+lastPAR[36]/(1.+lastPAR[37]/p2); |
---|
1035 | theS4=p2*(pah*lastPAR[38]*std::exp(-pah*lastPAR[39])+ |
---|
1036 | lastPAR[40]/(1.+lastPAR[41]*std::pow(p,lastPAR[42]))); |
---|
1037 | theB4=lastPAR[43]*pa/p2/(1.+pa*lastPAR[44]); |
---|
1038 | #ifdef tdebug |
---|
1039 | G4cout<<"G4QElCS::GetTabV: lA, p="<<p<<",S1="<<theS1<<",B1="<<theB1<<",SS="<<theSS |
---|
1040 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4="<<theS4 |
---|
1041 | <<",B4="<<theB4<<G4endl; |
---|
1042 | #endif |
---|
1043 | } |
---|
1044 | else |
---|
1045 | { |
---|
1046 | theS1=lastPAR[9]/(1.+lastPAR[10]/p4)+lastPAR[11]/(p4+lastPAR[12]/p2)+ |
---|
1047 | lastPAR[13]/(p5+lastPAR[14]/p16); |
---|
1048 | theB1=(lastPAR[15]/p8+lastPAR[19])/(p+lastPAR[16]/std::pow(p,lastPAR[20]))+ |
---|
1049 | lastPAR[17]/(1.+lastPAR[18]/p4); |
---|
1050 | theSS=lastPAR[21]/(p4/std::pow(p,lastPAR[23])+lastPAR[22]/p4); |
---|
1051 | theS2=lastPAR[24]/p4/(std::pow(p,lastPAR[25])+lastPAR[26]/p12)+lastPAR[27]; |
---|
1052 | theB2=lastPAR[28]/std::pow(p,lastPAR[29])+lastPAR[30]/std::pow(p,lastPAR[31]); |
---|
1053 | theS3=lastPAR[32]/std::pow(p,lastPAR[35])/(1.+lastPAR[36]/p12)+ |
---|
1054 | lastPAR[33]/(1.+lastPAR[34]/p6); |
---|
1055 | theB3=lastPAR[37]/p8+lastPAR[38]/p2+lastPAR[39]/(1.+lastPAR[40]/p8); |
---|
1056 | theS4=(lastPAR[41]/p4+lastPAR[46]/p)/(1.+lastPAR[42]/p10)+ |
---|
1057 | (lastPAR[43]+lastPAR[44]*dl*dl)/(1.+lastPAR[45]/p12); |
---|
1058 | theB4=lastPAR[47]/(1.+lastPAR[48]/p)+lastPAR[49]*p4/(1.+lastPAR[50]*p5); |
---|
1059 | #ifdef tdebug |
---|
1060 | G4cout<<"G4QElCS::GetTabV: hA, p="<<p<<",S1="<<theS1<<",B1="<<theB1<<",SS="<<theSS |
---|
1061 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4="<<theS4 |
---|
1062 | <<",B4="<<theB4<<G4endl; |
---|
1063 | #endif |
---|
1064 | } |
---|
1065 | // Returns the total elastic (n/p)A cross-section (to avoid spoiling lastSIG) |
---|
1066 | #ifdef tdebug |
---|
1067 | G4cout<<"G4QElCS::GetTabV: PDG="<<PDG<<",P="<<p<<",N="<<tgN<<",Z="<<tgZ<<G4endl; |
---|
1068 | #endif |
---|
1069 | // p1 p2 p3 p6 |
---|
1070 | return (lastPAR[0]*dl*dl+lastPAR[1])/(1.+lastPAR[2]/p+lastPAR[5]/p6)+ |
---|
1071 | lastPAR[3]/(p3+lastPAR[4]/p3)+lastPAR[7]/(p4+std::pow((lastPAR[8]/p),lastPAR[6])); |
---|
1072 | // p4 p5 p8 p9 p7 |
---|
1073 | } |
---|
1074 | return 0.; |
---|
1075 | } // End of GetTableValues |
---|
1076 | |
---|
1077 | // Returns max -t=Q2 (GeV^2) for the momentum pP(GeV) and the target nucleus (tgN,tgZ) |
---|
1078 | G4double G4QProtonElasticCrossSection::GetQ2max(G4int PDG, G4int tgZ, G4int tgN, |
---|
1079 | G4double pP) |
---|
1080 | { |
---|
1081 | //static const G4double mNeut= G4QPDGCode(2112).GetMass()*.001; // MeV to GeV |
---|
1082 | static const G4double mProt= G4QPDGCode(2212).GetMass()*.001; // MeV to GeV |
---|
1083 | //static const G4double mLamb= G4QPDGCode(3122).GetMass()*.001; // MeV to GeV |
---|
1084 | //static const G4double mHe3 = G4QPDGCode(2112).GetNuclMass(2,1,0)*.001; // MeV to GeV |
---|
1085 | //static const G4double mAlph = G4QPDGCode(2112).GetNuclMass(2,2,0)*.001; // MeV to GeV |
---|
1086 | //static const G4double mDeut = G4QPDGCode(2112).GetNuclMass(1,1,0)*.001; // MeV to GeV |
---|
1087 | static const G4double mProt2= mProt*mProt; |
---|
1088 | //static const G4double mNeut2= mNeut*mNeut; |
---|
1089 | //static const G4double mDeut2= mDeut*mDeut; |
---|
1090 | G4double pP2=pP*pP; // squared momentum of the projectile |
---|
1091 | if(tgZ==1 && tgN==0) |
---|
1092 | { |
---|
1093 | G4double tMid=std::sqrt(pP2+mProt2)*mProt-mProt2; // CMS 90deg value of -t=Q2 (GeV^2) |
---|
1094 | return tMid+tMid; |
---|
1095 | } |
---|
1096 | else if(tgZ || tgN) // ---> pA |
---|
1097 | { |
---|
1098 | G4double mt=G4QPDGCode(90000000+tgZ*1000+tgN).GetMass()*.001; // Target mass in GeV |
---|
1099 | G4double dmt=mt+mt; |
---|
1100 | G4double s=dmt*std::sqrt(pP2+mProt2)+mProt2+mt*mt;// Mondelstam s |
---|
1101 | return dmt*dmt*pP2/s; |
---|
1102 | } |
---|
1103 | else |
---|
1104 | { |
---|
1105 | G4cout<<"*Error*G4QProtonElasticCrossSection::GetQ2max: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
1106 | <<tgN<<", while it is defined only for p projectiles & Z_target>0"<<G4endl; |
---|
1107 | throw G4QException("G4QProtonElasticCrossSection::GetQ2max: only pA are implemented"); |
---|
1108 | } |
---|
1109 | } |
---|