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27 //
28 //
29 // G4 Physics class: G4ChipsProtonElasticXS fo
30 // Created: M.V. Kossov, CERN/ITEP(Moscow), 10
31 // The last update: M.V. Kossov, CERN/ITEP (Mo
32 //
33 // -------------------------------------------
34 // Short description: Interaction cross-sectio
35 // Class extracted from CHIPS and integrated i
36 // -------------------------------------------
37
38
39 #include "G4ChipsProtonElasticXS.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "G4DynamicParticle.hh"
42 #include "G4ParticleDefinition.hh"
43 #include "G4Proton.hh"
44 #include "G4Nucleus.hh"
45 #include "G4ParticleTable.hh"
46 #include "G4NucleiProperties.hh"
47 #include "G4IonTable.hh"
48
49 // factory
50 #include "G4CrossSectionFactory.hh"
51 //
52 G4_DECLARE_XS_FACTORY(G4ChipsProtonElasticXS);
53
54 namespace {
55 G4double mProt;
56 G4double mProt2;
57 }
58
59 G4ChipsProtonElasticXS::G4ChipsProtonElasticXS
60 {
61 // Initialization of the parameters
62 lPMin=-8.; // Min tabulated logarithmicMome
63 lPMax= 8.; // Max tabulated logarithmicMome
64 dlnP=(lPMax-lPMin)/nLast;// LogStep in the t
65 onlyCS=false;// Flag toCalculateOnlyCS(not S
66 lastSIG=0.; // Last calculated cross section
67 lastLP=-10.;// Last log(mom_ofTheIncidentHad
68 lastTM=0.; // Last t_maximum
69 theSS=0.; // The Last sq.slope of 1st difr
70 theS1=0.; // The Last mantissa of 1st difr
71 theB1=0.; // The Last slope of 1st difruct
72 theS2=0.; // The Last mantissa of 2nd difr
73 theB2=0.; // The Last slope of 2nd difruct
74 theS3=0.; // The Last mantissa of 3d difr.
75 theB3=0.; // The Last slope of 3d difruct.
76 theS4=0.; // The Last mantissa of 4th difr
77 theB4=0.; // The Last slope of 4th difruct
78 lastTZ=0; // Last atomic number of the tar
79 lastTN=0; // Last # of neutrons in the tar
80 lastPIN=0.; // Last initialized max momentum
81 lastCST=0; // Elastic cross-section table
82 lastPAR=0; // Parameters for FunctionalCalc
83 lastSST=0; // E-dep of sq.slope of the 1st
84 lastS1T=0; // E-dep of mantissa of the 1st
85 lastB1T=0; // E-dep of the slope of the 1st
86 lastS2T=0; // E-dep of mantissa of the 2nd
87 lastB2T=0; // E-dep of the slope of the 2nd
88 lastS3T=0; // E-dep of mantissa of the 3d d
89 lastB3T=0; // E-dep of the slope of the 3d
90 lastS4T=0; // E-dep of mantissa of the 4th
91 lastB4T=0; // E-dep of the slope of the 4th
92 lastN=0; // The last N of calculated nucl
93 lastZ=0; // The last Z of calculated nucl
94 lastP=0.; // Last used in cross section Mo
95 lastTH=0.; // Last threshold momentum
96 lastCS=0.; // Last value of the Cross Secti
97 lastI=0; // The last position in the DAMD
98
99 mProt= G4Proton::Proton()->GetPDGMass()*.0
100 mProt2= mProt*mProt;
101
102
103 }
104
105
106 G4ChipsProtonElasticXS::~G4ChipsProtonElasticX
107 {
108 std::vector<G4double*>::iterator pos;
109 for (pos=CST.begin(); pos<CST.end(); pos++)
110 { delete [] *pos; }
111 CST.clear();
112 for (pos=PAR.begin(); pos<PAR.end(); pos++)
113 { delete [] *pos; }
114 PAR.clear();
115 for (pos=SST.begin(); pos<SST.end(); pos++)
116 { delete [] *pos; }
117 SST.clear();
118 for (pos=S1T.begin(); pos<S1T.end(); pos++)
119 { delete [] *pos; }
120 S1T.clear();
121 for (pos=B1T.begin(); pos<B1T.end(); pos++)
122 { delete [] *pos; }
123 B1T.clear();
124 for (pos=S2T.begin(); pos<S2T.end(); pos++)
125 { delete [] *pos; }
126 S2T.clear();
127 for (pos=B2T.begin(); pos<B2T.end(); pos++)
128 { delete [] *pos; }
129 B2T.clear();
130 for (pos=S3T.begin(); pos<S3T.end(); pos++)
131 { delete [] *pos; }
132 S3T.clear();
133 for (pos=B3T.begin(); pos<B3T.end(); pos++)
134 { delete [] *pos; }
135 B3T.clear();
136 for (pos=S4T.begin(); pos<S4T.end(); pos++)
137 { delete [] *pos; }
138 S4T.clear();
139 for (pos=B4T.begin(); pos<B4T.end(); pos++)
140 { delete [] *pos; }
141 B4T.clear();
142
143 }
144
145 void
146 G4ChipsProtonElasticXS::CrossSectionDescriptio
147 {
148 outFile << "G4ChipsProtonElasticXS provide
149 << "section for proton nucleus sca
150 << "momentum. The cross section is
151 << "CHIPS parameterization of cros
152 }
153
154 G4bool G4ChipsProtonElasticXS::IsIsoApplicable
155 const G4Element*,
156 const G4Material*)
157 {
158 return true;
159 }
160
161
162 G4double G4ChipsProtonElasticXS::GetIsoCrossSe
163 const G4Isotope*,
164 const G4Element*,
165 const G4Material*)
166 {
167 G4double pMom=Pt->GetTotalMomentum();
168 G4int tgN = A - tgZ;
169
170 return GetChipsCrossSection(pMom, tgZ, tgN,
171 }
172
173
174 // The main member function giving the collisi
175 // Make pMom in independent units ! (Now it is
176 G4double G4ChipsProtonElasticXS::GetChipsCross
177 {
178
179 G4double pEn=pMom;
180 onlyCS=false;
181
182 G4bool in=false; // By def
183 lastP = 0.; // New mo
184 lastN = tgN; // The la
185 lastZ = tgZ; // The la
186 lastI = (G4int)colN.size(); // Size o
187 if(lastI) for(G4int i=0; i<lastI; ++i) // Lo
188 { // The nu
189 if(colN[i]==tgN && colZ[i]==tgZ) // Isotop
190 {
191 lastI=i;
192 lastTH =colTH[i]; // Last T
193 if(pEn<=lastTH)
194 {
195 return 0.; // Energy
196 }
197 lastP =colP [i]; // Last M
198 lastCS =colCS[i]; // Last C
199 if(lastP == pMom) // Do not
200 {
201 CalculateCrossSection(onlyCS,-1,i,2212
202 return lastCS*millibarn; // Use th
203 }
204 in = true; // This
205 // Momentum pMom is in IU ! @@ Units
206 lastCS=CalculateCrossSection(onlyCS,-1,i
207 if(lastCS<=0. && pEn>lastTH) // Corre
208 {
209 lastTH=pEn;
210 }
211 break; // Go o
212 }
213 } // End of attampt to find the nucleus in D
214 if(!in) // This n
215 {
216 //!!The slave functions must provide cross
217 lastCS=CalculateCrossSection(onlyCS,0,last
218 if(lastCS<=0.)
219 {
220 lastTH = 0; //ThresholdEnergy(tgZ, tgN);
221 if(pEn>lastTH)
222 {
223 lastTH=pEn;
224 }
225 }
226 colN.push_back(tgN);
227 colZ.push_back(tgZ);
228 colP.push_back(pMom);
229 colTH.push_back(lastTH);
230 colCS.push_back(lastCS);
231 return lastCS*millibarn;
232 } // End of creation of the new set of param
233 else
234 {
235 colP[lastI]=pMom;
236 colCS[lastI]=lastCS;
237 }
238 return lastCS*millibarn;
239 }
240
241 // Calculation of total elastic cross section
242 // F=0 - create AMDB, F=-1 - read&update AMDB,
243 G4double G4ChipsProtonElasticXS::CalculateCros
244 G
245 {
246 G4double pMom=pIU/GeV; // All
247 onlyCS=CS; // Fla
248 lastLP=std::log(pMom); // Mak
249 if(F) // Thi
250 {
251 if(F<0) // the
252 {
253 lastPIN = PIN[I]; // Max
254 lastPAR = PAR[I]; // Poi
255 lastCST = CST[I]; // Poi
256 lastSST = SST[I]; // Poi
257 lastS1T = S1T[I]; // Poi
258 lastB1T = B1T[I]; // Poi
259 lastS2T = S2T[I]; // Poi
260 lastB2T = B2T[I]; // Poi
261 lastS3T = S3T[I]; // Poi
262 lastB3T = B3T[I]; // Poi
263 lastS4T = S4T[I]; // Poi
264 lastB4T = B4T[I]; // Poi
265 }
266 if(lastLP>lastPIN && lastLP<lPMax)
267 {
268 lastPIN=GetPTables(lastLP,lastPIN,PDG,tg
269 PIN[I]=lastPIN; // Rem
270 }
271 }
272 else // Thi
273 {
274 lastPAR = new G4double[nPoints]; // All
275 lastPAR[nLast]=0; // Ini
276 lastCST = new G4double[nPoints]; // All
277 lastSST = new G4double[nPoints]; // All
278 lastS1T = new G4double[nPoints]; // All
279 lastB1T = new G4double[nPoints]; // All
280 lastS2T = new G4double[nPoints]; // All
281 lastB2T = new G4double[nPoints]; // All
282 lastS3T = new G4double[nPoints]; // All
283 lastB3T = new G4double[nPoints]; // All
284 lastS4T = new G4double[nPoints]; // All
285 lastB4T = new G4double[nPoints]; // All
286 lastPIN = GetPTables(lastLP,lPMin,PDG,tgZ,
287 PIN.push_back(lastPIN); // Fil
288 PAR.push_back(lastPAR); // Fil
289 CST.push_back(lastCST); // Fil
290 SST.push_back(lastSST); // Fil
291 S1T.push_back(lastS1T); // Fil
292 B1T.push_back(lastB1T); // Fil
293 S2T.push_back(lastS2T); // Fil
294 B2T.push_back(lastB2T); // Fil
295 S3T.push_back(lastS3T); // Fil
296 B3T.push_back(lastB3T); // Fil
297 S4T.push_back(lastS4T); // Fil
298 B4T.push_back(lastB4T); // Fil
299 } // End of creation/update of the new set o
300 // =--------= NOW Update (if necessary) and
301 if(lastLP>lastPIN && lastLP<lPMax)
302 {
303 lastPIN = GetPTables(lastLP,lastPIN,PDG,tg
304 }
305 if(!onlyCS) lastTM=GetQ2max(PDG, tgZ, tgN, p
306 if(lastLP>lPMin && lastLP<=lastPIN) // Lin
307 {
308 if(lastLP==lastPIN)
309 {
310 G4double shift=(lastLP-lPMin)/dlnP+.0000
311 G4int blast=static_cast<int>(shift);
312 if(blast<0 || blast>=nLast) G4cout<<"G4Q
313 lastSIG = lastCST[blast];
314 if(!onlyCS) // Ski
315 {
316 theSS = lastSST[blast];
317 theS1 = lastS1T[blast];
318 theB1 = lastB1T[blast];
319 theS2 = lastS2T[blast];
320 theB2 = lastB2T[blast];
321 theS3 = lastS3T[blast];
322 theB3 = lastB3T[blast];
323 theS4 = lastS4T[blast];
324 theB4 = lastB4T[blast];
325 }
326 }
327 else
328 {
329 G4double shift=(lastLP-lPMin)/dlnP;
330 G4int blast=static_cast<int>(shift);
331 if(blast<0) blast=0;
332 if(blast>=nLast) blast=nLast-1;
333 shift-=blast;
334 G4int lastL=blast+1;
335 G4double SIGL=lastCST[blast];
336 lastSIG= SIGL+shift*(lastCST[lastL]-SIGL
337 if(!onlyCS) // Ski
338 {
339 G4double SSTL=lastSST[blast];
340 theSS=SSTL+shift*(lastSST[lastL]-SSTL)
341 G4double S1TL=lastS1T[blast];
342 theS1=S1TL+shift*(lastS1T[lastL]-S1TL)
343 G4double B1TL=lastB1T[blast];
344 theB1=B1TL+shift*(lastB1T[lastL]-B1TL)
345 G4double S2TL=lastS2T[blast];
346 theS2=S2TL+shift*(lastS2T[lastL]-S2TL)
347 G4double B2TL=lastB2T[blast];
348 theB2=B2TL+shift*(lastB2T[lastL]-B2TL)
349 G4double S3TL=lastS3T[blast];
350 theS3=S3TL+shift*(lastS3T[lastL]-S3TL)
351 G4double B3TL=lastB3T[blast];
352 theB3=B3TL+shift*(lastB3T[lastL]-B3TL)
353 G4double S4TL=lastS4T[blast];
354 theS4=S4TL+shift*(lastS4T[lastL]-S4TL)
355 G4double B4TL=lastB4T[blast];
356 theB4=B4TL+shift*(lastB4T[lastL]-B4TL)
357 }
358 }
359 }
360 else lastSIG=GetTabValues(lastLP, PDG, tgZ,
361 if(lastSIG<0.) lastSIG = 0.;
362 return lastSIG;
363 }
364
365 // It has parameter sets for all tZ/tN/PDG, us
366 G4double G4ChipsProtonElasticXS::GetPTables(G4
367
368 {
369 // @@ At present all nA==pA ---------> Each
370 static const G4double pwd=2727;
371 const G4int n_npel=24; // #of
372 const G4int n_ppel=32; // #of
373 // -0- -1- -2- -3- -4-
374 G4double np_el[n_npel]={12.,.05,.0001,5.,.35
375 75.,.001,7.2,4.32,.0
376 // -15--16--17- -18- -1
377 // -0- -1- -2- -3-
378 G4double pp_el[n_ppel]={2.865,18.9,.6461,3.,
379 .001,8.,.055,3.64,5.
380 8.5e8,1.e10,1.1,3.4e
381 // -14--15- -16- -17- -
382 // -26- -27- -28- -29
383 if(PDG==2212)
384 {
385 // -- Total pp elastic cross section cs &
386 //p2=p*p;p3=p2*p;sp=sqrt(p);p2s=p2*sp;lp=l
387 //CS=2.865/p2s/(1+.0022/p2s)+(18.9+.6461*d
388 // par(0) par(7) par(1) par(2)
389 //dl2=lp-5., s1=(74.+3.*dl2*dl2)/(1+3.4/p4
390 // par(8) par(9) par(10) par(11
391 // b1=8.*p**.055/(1.+3.64/p3); s2=5.e-5+40
392 // par(15) par(16) par(17) par(18) pa
393 // s3=5.e-5+1.e10/(p4*p4+8.5e8*p2+1.e10);
394 // par(24) par(25) par(26) par(27) p
395 //
396 if(lastPAR[nLast]!=pwd) // A unique flag t
397 {
398 if ( tgZ == 0 && tgN == 1 )
399 {
400 for (G4int ip=0; ip<n_npel; ip++) last
401
402 }
403 else if ( tgZ == 1 && tgN == 0 )
404 {
405 for (G4int ip=0; ip<n_ppel; ip++) last
406 }
407 else
408 {
409 G4double a=tgZ+tgN;
410 G4double sa=std::sqrt(a);
411 G4double ssa=std::sqrt(sa);
412 G4double asa=a*sa;
413 G4double a2=a*a;
414 G4double a3=a2*a;
415 G4double a4=a3*a;
416 G4double a5=a4*a;
417 G4double a6=a4*a2;
418 G4double a7=a6*a;
419 G4double a8=a7*a;
420 G4double a9=a8*a;
421 G4double a10=a5*a5;
422 G4double a12=a6*a6;
423 G4double a14=a7*a7;
424 G4double a16=a8*a8;
425 G4double a17=a16*a;
426 G4double a20=a16*a4;
427 G4double a32=a16*a16;
428 // Reaction cross-section parameters (
429 lastPAR[0]=5./(1.+22./asa);
430 lastPAR[1]=4.8*std::pow(a,1.14)/(1.+3.
431 lastPAR[2]=1./(1.+4.E-3*a4)+2.E-6*a3/(
432 lastPAR[3]=1.3*a;
433 lastPAR[4]=3.E-8*a3/(1.+4.E-7*a4);
434 lastPAR[5]=.07*asa/(1.+.009*a2);
435 lastPAR[6]=(3.+3.E-16*a20)/(1.+a20*(2.
436 lastPAR[7]=(5.E-9*a4*sa+.27/a)/(1.+5.E
437 lastPAR[8]=(.001*a+.07/a)/(1.+5.E13/a1
438 // @@ the differential cross-section i
439 if(a<6.5)
440 {
441 G4double a28=a16*a12;
442 // The main pre-exponent (pel_s
443 lastPAR[ 9]=4000*a;
444 lastPAR[10]=1.2e7*a8+380*a17;
445 lastPAR[11]=.7/(1.+4.e-12*a16);
446 lastPAR[12]=2.5/a8/(a4+1.e-16*a32);
447 lastPAR[13]=.28*a;
448 lastPAR[14]=1.2*a2+2.3;
449 lastPAR[15]=3.8/a;
450 // The main slope (pel_s
451 lastPAR[16]=.01/(1.+.0024*a5);
452 lastPAR[17]=.2*a;
453 lastPAR[18]=9.e-7/(1.+.035*a5);
454 lastPAR[19]=(42.+2.7e-11*a16)/(1.+.1
455 // The main quadratic (pel_s
456 lastPAR[20]=2.25*a3;
457 lastPAR[21]=18.;
458 lastPAR[22]=2.4e-3*a8/(1.+2.6e-4*a7)
459 lastPAR[23]=3.5e-36*a32*a8/(1.+5.e-1
460 // The 1st max pre-exponent (pel_q
461 lastPAR[24]=1.e5/(a8+2.5e12/a16);
462 lastPAR[25]=8.e7/(a12+1.e-27*a28*a28
463 lastPAR[26]=.0006*a3;
464 // The 1st max slope (pel_q
465 lastPAR[27]=10.+4.e-8*a12*a;
466 lastPAR[28]=.114;
467 lastPAR[29]=.003;
468 lastPAR[30]=2.e-23;
469 // The effective pre-exponent (pel_s
470 lastPAR[31]=1./(1.+.0001*a8);
471 lastPAR[32]=1.5e-4/(1.+5.e-6*a12);
472 lastPAR[33]=.03;
473 // The effective slope (pel_s
474 lastPAR[34]=a/2;
475 lastPAR[35]=2.e-7*a4;
476 lastPAR[36]=4.;
477 lastPAR[37]=64./a3;
478 // The gloria pre-exponent (pel_u
479 lastPAR[38]=1.e8*std::exp(.32*asa);
480 lastPAR[39]=20.*std::exp(.45*asa);
481 lastPAR[40]=7.e3+2.4e6/a5;
482 lastPAR[41]=2.5e5*std::exp(.085*a3);
483 lastPAR[42]=2.5*a;
484 // The gloria slope (pel_u
485 lastPAR[43]=920.+.03*a8*a3;
486 lastPAR[44]=93.+.0023*a12;
487 }
488 else
489 {
490 G4double p1a10=2.2e-28*a10;
491 G4double r4a16=6.e14/a16;
492 G4double s4a16=r4a16*r4a16;
493 // a24
494 // a36
495 // The main pre-exponent (peh_s
496 lastPAR[ 9]=4.5*std::pow(a,1.15);
497 lastPAR[10]=.06*std::pow(a,.6);
498 lastPAR[11]=.6*a/(1.+2.e15/a16);
499 lastPAR[12]=.17/(a+9.e5/a3+1.5e33/a3
500 lastPAR[13]=(.001+7.e-11*a5)/(1.+4.4
501 lastPAR[14]=(p1a10*p1a10+2.e-29)/(1.
502 // The main slope (peh_s
503 lastPAR[15]=400./a12+2.e-22*a9;
504 lastPAR[16]=1.e-32*a12/(1.+5.e22/a14
505 lastPAR[17]=1000./a2+9.5*sa*ssa;
506 lastPAR[18]=4.e-6*a*asa+1.e11/a16;
507 lastPAR[19]=(120./a+.002*a2)/(1.+2.e
508 lastPAR[20]=9.+100./a;
509 // The main quadratic (peh_s
510 lastPAR[21]=.002*a3+3.e7/a6;
511 lastPAR[22]=7.e-15*a4*asa;
512 lastPAR[23]=9000./a4;
513 // The 1st max pre-exponent (peh_q
514 lastPAR[24]=.0011*asa/(1.+3.e34/a32/
515 lastPAR[25]=1.e-5*a2+2.e14/a16;
516 lastPAR[26]=1.2e-11*a2/(1.+1.5e19/a1
517 lastPAR[27]=.016*asa/(1.+5.e16/a16);
518 // The 1st max slope (peh_q
519 lastPAR[28]=.002*a4/(1.+7.e7/std::po
520 lastPAR[29]=2.e6/a6+7.2/std::pow(a,.
521 lastPAR[30]=11.*a3/(1.+7.e23/a16/a8)
522 lastPAR[31]=100./asa;
523 // The 2nd max pre-exponent (peh_s
524 lastPAR[32]=(.1+4.4e-5*a2)/(1.+5.e5/
525 lastPAR[33]=3.5e-4*a2/(1.+1.e8/a8);
526 lastPAR[34]=1.3+3.e5/a4;
527 lastPAR[35]=500./(a2+50.)+3;
528 lastPAR[36]=1.e-9/a+s4a16*s4a16;
529 // The 2nd max slope (peh_s
530 lastPAR[37]=.4*asa+3.e-9*a6;
531 lastPAR[38]=.0005*a5;
532 lastPAR[39]=.002*a5;
533 lastPAR[40]=10.;
534 // The effective pre-exponent (peh_u
535 lastPAR[41]=.05+.005*a;
536 lastPAR[42]=7.e-8/sa;
537 lastPAR[43]=.8*sa;
538 lastPAR[44]=.02*sa;
539 lastPAR[45]=1.e8/a3;
540 lastPAR[46]=3.e32/(a32+1.e32);
541 // The effective slope (peh_u
542 lastPAR[47]=24.;
543 lastPAR[48]=20./sa;
544 lastPAR[49]=7.e3*a/(sa+1.);
545 lastPAR[50]=900.*sa/(1.+500./a3);
546 }
547 // Parameter for lowEnergyNeutrons
548 lastPAR[51]=1.e15+2.e27/a4/(1.+2.e-18*
549 }
550 lastPAR[nLast]=pwd;
551 // and initialize the zero element of th
552 G4double lp=lPMin;
553 G4bool memCS=onlyCS;
554 onlyCS=false;
555 lastCST[0]=GetTabValues(lp, PDG, tgZ, tg
556 onlyCS=memCS;
557 lastSST[0]=theSS;
558 lastS1T[0]=theS1;
559 lastB1T[0]=theB1;
560 lastS2T[0]=theS2;
561 lastB2T[0]=theB2;
562 lastS3T[0]=theS3;
563 lastB3T[0]=theB3;
564 lastS4T[0]=theS4;
565 lastB4T[0]=theB4;
566 }
567 if(LP>ILP)
568 {
569 G4int ini = static_cast<int>((ILP-lPMin+
570 if(ini<0) ini=0;
571 if(ini<nPoints)
572 {
573 G4int fin = static_cast<int>((LP-lPMin
574 if(fin>=nPoints) fin=nLast;
575 if(fin>=ini)
576 {
577 G4double lp=0.;
578 for(G4int ip=ini; ip<=fin; ip++)
579 {
580 lp=lPMin+ip*dlnP;
581 G4bool memCS=onlyCS;
582 onlyCS=false;
583 lastCST[ip]=GetTabValues(lp, PDG,
584 onlyCS=memCS;
585 lastSST[ip]=theSS;
586 lastS1T[ip]=theS1;
587 lastB1T[ip]=theB1;
588 lastS2T[ip]=theS2;
589 lastB2T[ip]=theB2;
590 lastS3T[ip]=theS3;
591 lastB3T[ip]=theB3;
592 lastS4T[ip]=theS4;
593 lastB4T[ip]=theB4;
594 }
595 return lp;
596 }
597 else G4cout<<"*Warning*G4ChipsProtonEl
598 <<tgZ<<", N="<<tgN<<", i="<
599 <<ILP<<" nothing is done!"<
600 }
601 else G4cout<<"*Warning*G4ChipsProtonElas
602 <<tgZ<<", N="<<tgN<<", i="<<i
603 <<" > ILP="<<ILP<<", lPMax="<
604 }
605 }
606 else
607 {
608 // G4cout<<"*Error*G4ChipsProtonElasticXS:
609 // <<", N="<<tgN<<", while it is def
610 // throw G4QException("G4ChipsProtonElasti
611 G4ExceptionDescription ed;
612 ed << "PDG = " << PDG << ", Z = " << tgZ <
613 << ", while it is defined only for PDG=
614 G4Exception("G4ChipsProtonElasticXS::GetPT
615 FatalException, ed);
616 }
617 return ILP;
618 }
619
620 // Returns Q2=-t in independent units (MeV^2)
621 G4double G4ChipsProtonElasticXS::GetExchangeT(
622 {
623 static const G4double GeVSQ=gigaelectronvolt
624 static const G4double third=1./3.;
625 static const G4double fifth=1./5.;
626 static const G4double sevth=1./7.;
627 if(PDG!=2212) G4cout<<"**Warning*G4ChipsProt
628 if(onlyCS) G4cout<<"**Warning*G4ChipsProtonE
629 if(lastLP<-4.3) return lastTM*GeVSQ*G4Unifor
630 G4double q2=0.;
631 if(tgZ==1 && tgN==0) // ===>
632 {
633 G4double E1=lastTM*theB1;
634 G4double R1=(1.-std::exp(-E1));
635 G4double E2=lastTM*theB2;
636 G4double R2=(1.-std::exp(-E2*E2*E2));
637 G4double E3=lastTM*theB3;
638 G4double R3=(1.-std::exp(-E3));
639 G4double I1=R1*theS1/theB1;
640 G4double I2=R2*theS2;
641 G4double I3=R3*theS3;
642 G4double I12=I1+I2;
643 G4double rand=(I12+I3)*G4UniformRand();
644 if (rand<I1 )
645 {
646 G4double ran=R1*G4UniformRand();
647 if(ran>1.) ran=1.;
648 q2=-std::log(1.-ran)/theB1;
649 }
650 else if(rand<I12)
651 {
652 G4double ran=R2*G4UniformRand();
653 if(ran>1.) ran=1.;
654 q2=-std::log(1.-ran);
655 if(q2<0.) q2=0.;
656 q2=std::pow(q2,third)/theB2;
657 }
658 else
659 {
660 G4double ran=R3*G4UniformRand();
661 if(ran>1.) ran=1.;
662 q2=-std::log(1.-ran)/theB3;
663 }
664 }
665 else
666 {
667 G4double a=tgZ+tgN;
668 G4double E1=lastTM*(theB1+lastTM*theSS);
669 G4double R1=(1.-std::exp(-E1));
670 G4double tss=theSS+theSS; // for future so
671 G4double tm2=lastTM*lastTM;
672 G4double E2=lastTM*tm2*theB2;
673 if(a>6.5)E2*=tm2;
674 G4double R2=(1.-std::exp(-E2));
675 G4double E3=lastTM*theB3;
676 if(a>6.5)E3*=tm2*tm2*tm2;
677 G4double R3=(1.-std::exp(-E3));
678 G4double E4=lastTM*theB4;
679 G4double R4=(1.-std::exp(-E4));
680 G4double I1=R1*theS1;
681 G4double I2=R2*theS2;
682 G4double I3=R3*theS3;
683 G4double I4=R4*theS4;
684 G4double I12=I1+I2;
685 G4double I13=I12+I3;
686 G4double rand=(I13+I4)*G4UniformRand();
687 if(rand<I1)
688 {
689 G4double ran=R1*G4UniformRand();
690 if(ran>1.) ran=1.;
691 q2=-std::log(1.-ran)/theB1;
692 if(std::fabs(tss)>1.e-7) q2=(std::sqrt(t
693 }
694 else if(rand<I12)
695 {
696 G4double ran=R2*G4UniformRand();
697 if(ran>1.) ran=1.;
698 q2=-std::log(1.-ran)/theB2;
699 if(q2<0.) q2=0.;
700 if(a<6.5) q2=std::pow(q2,third);
701 else q2=std::pow(q2,fifth);
702 }
703 else if(rand<I13)
704 {
705 G4double ran=R3*G4UniformRand();
706 if(ran>1.) ran=1.;
707 q2=-std::log(1.-ran)/theB3;
708 if(q2<0.) q2=0.;
709 if(a>6.5) q2=std::pow(q2,sevth);
710 }
711 else
712 {
713 G4double ran=R4*G4UniformRand();
714 if(ran>1.) ran=1.;
715 q2=-std::log(1.-ran)/theB4;
716 if(a<6.5) q2=lastTM-q2;
717 }
718 }
719 if(q2<0.) q2=0.;
720 if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElas
721 if(q2>lastTM)
722 {
723 q2=lastTM;
724 }
725 return q2*GeVSQ;
726 }
727
728 // Returns B in independent units (MeV^-2) (al
729 G4double G4ChipsProtonElasticXS::GetSlope(G4in
730 {
731 static const G4double GeVSQ=gigaelectronvolt
732 if(onlyCS) G4cout<<"*Warning*G4ChipsProtonEl
733 if(lastLP<-4.3) return 0.; // S-wav
734 if(PDG!=2212)
735 {
736 // G4cout<<"*Error*G4ChipsProtonElasticXS:
737 // <<tgN<<", while it is defined onl
738 // throw G4QException("G4ChipsProtonElasti
739 G4ExceptionDescription ed;
740 ed << "PDG = " << PDG << ", Z = " << tgZ <
741 << ", while it is defined only for PDG=
742 G4Exception("G4ChipsProtonElasticXS::GetSl
743 FatalException, ed);
744 }
745 if(theB1<0.) theB1=0.;
746 if(!(theB1>=-1.||theB1<=1.))G4cout<<"*NAN*G4
747 return theB1/GeVSQ;
748 }
749
750 // Returns half max(Q2=-t) in independent unit
751 G4double G4ChipsProtonElasticXS::GetHMaxT()
752 {
753 static const G4double HGeVSQ=gigaelectronvol
754 return lastTM*HGeVSQ;
755 }
756
757 // lastLP is used, so calculating tables, one
758 G4double G4ChipsProtonElasticXS::GetTabValues(
759
760 {
761 if(PDG!=2212) G4cout<<"*Warning*G4ChipsProto
762
763 //AR-24Apr2018 Switch to allow transuranic e
764 const G4bool isHeavyElementAllowed = true;
765 if(tgZ<0 || ( !isHeavyElementAllowed && tgZ>
766 {
767 G4cout<<"*Warning*G4QProtonElCS::GetTabVal
768 return 0.;
769 }
770 G4int iZ=tgZ-1; // Z index
771 if(iZ<0)
772 {
773 iZ=0; // conversion of the neutron
774 tgZ=1;
775 tgN=0;
776 }
777 G4double p=std::exp(lp); // mom
778 G4double sp=std::sqrt(p); // sqr
779 G4double p2=p*p;
780 G4double p3=p2*p;
781 G4double p4=p3*p;
782 if ( tgZ == 1 && tgN == 0 ) // pp/nn
783 {
784 G4double p2s=p2*sp;
785 G4double dl2=lp-lastPAR[8];
786 theSS=lastPAR[31];
787 theS1=(lastPAR[9]+lastPAR[10]*dl2*dl2)/(1.
788 (lastPAR[12]/p2+lastPAR[13]*p)/(p4+l
789 theB1=lastPAR[15]*std::pow(p,lastPAR[16])/
790 theS2=lastPAR[18]+lastPAR[19]/(p4+lastPAR[
791 theB2=lastPAR[21]+lastPAR[22]/(p4+lastPAR[
792 theS3=lastPAR[24]+lastPAR[25]/(p4*p4+lastP
793 theB3=lastPAR[28]+lastPAR[29]/(p4+lastPAR[
794 theS4=0.;
795 theB4=0.;
796 // Returns the total elastic pp cross-sect
797 G4double dl1=lp-lastPAR[3];
798 return lastPAR[0]/p2s/(1.+lastPAR[7]/p2s)+
799
800 }
801 else
802 {
803 G4double p5=p4*p;
804 G4double p6=p5*p;
805 G4double p8=p6*p2;
806 G4double p10=p8*p2;
807 G4double p12=p10*p2;
808 G4double p16=p8*p8;
809 //G4double p24=p16*p8;
810 G4double dl=lp-5.;
811 G4double a=tgZ+tgN;
812 if(a<6.5)
813 {
814 G4double pah=std::pow(p,a/2);
815 G4double pa=pah*pah;
816 G4double pa2=pa*pa;
817
818 theS1=lastPAR[9]/(1.+lastPAR[10]*p4*pa)+
819 (lastPAR[13]*dl*dl+lastPAR[14])/(1
820 theB1=(lastPAR[16]+lastPAR[17]*p2)/(p4+l
821 theSS=lastPAR[20]/(1.+lastPAR[21]/p2)+la
822 theS2=lastPAR[24]/(pa/p2+lastPAR[25]/p4)
823 theB2=lastPAR[27]*std::pow(p,lastPAR[28]
824 theS3=lastPAR[31]/(pa*p+lastPAR[32]/pa)+
825 theB3=lastPAR[34]/(p3+lastPAR[35]/p6)+la
826 theS4=p2*(pah*lastPAR[38]*std::exp(-pah*
827 lastPAR[40]/(1.+lastPAR[41]*st
828 theB4=lastPAR[43]*pa/p2/(1.+pa*lastPAR[4
829 }
830 else
831 {
832 theS1=lastPAR[9]/(1.+lastPAR[10]/p4)+las
833 lastPAR[13]/(p5+lastPAR[14]/p16);
834 theB1=(lastPAR[15]/p8+lastPAR[19])/(p+la
835 lastPAR[17]/(1.+lastPAR[18]/p4);
836 theSS=lastPAR[21]/(p4/std::pow(p,lastPAR
837 theS2=lastPAR[24]/p4/(std::pow(p,lastPAR
838 theB2=lastPAR[28]/std::pow(p,lastPAR[29]
839 theS3=lastPAR[32]/std::pow(p,lastPAR[35]
840 lastPAR[33]/(1.+lastPAR[34]/p6);
841 theB3=lastPAR[37]/p8+lastPAR[38]/p2+last
842 theS4=(lastPAR[41]/p4+lastPAR[46]/p)/(1.
843 (lastPAR[43]+lastPAR[44]*dl*dl)/(1
844 theB4=lastPAR[47]/(1.+lastPAR[48]/p)+las
845 }
846 // Returns the total elastic (n/p)A cross-
847 // p1 p2
848 return (lastPAR[0]*dl*dl+lastPAR[1])/(1.+l
849 lastPAR[3]/(p3+lastPAR[4]/p3)+lastPAR[7]/
850 // p4 p5 p8
851 }
852 return 0.;
853 } // End of GetTableValues
854
855 // Returns max -t=Q2 (GeV^2) for the momentum
856 G4double G4ChipsProtonElasticXS::GetQ2max(G4in
857
858 {
859
860 G4double pP2=pP*pP;
861 if(tgZ==1 && tgN==0)
862 {
863 G4double tMid=std::sqrt(pP2+mProt2)*mProt-
864 return tMid+tMid;
865 }
866 else if(tgZ || tgN)
867 {
868 G4double mt=G4ParticleTable::GetParticleTa
869 G4double dmt=mt+mt;
870 G4double mds=dmt*std::sqrt(pP2+mProt2)+mPr
871 return dmt*dmt*pP2/mds;
872 }
873 else
874 {
875 // G4cout<<"*Error*G4ChipsProtonElasticXS:
876 // <<tgN<<", while it is defined onl
877 // throw G4QException("G4ChipsProtonElasti
878 G4ExceptionDescription ed;
879 ed << "PDG = " << PDG << ", Z = " << tgZ <
880 << ", while it is defined only for p pr
881 G4Exception("G4ChipsProtonElasticXS::GetQ2
882 FatalException, ed);
883 return 0;
884 }
885 }
886