1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 // Library class for particle pt and y distributions used for
19 // muon spectrometer simulations.
20 // To be used with AliGenParam.
21 // The following particle typed can be simulated:
22 // pi, K, phi, omega, eta, J/Psi, Upsilon, charm and beauty mesons.
24 // andreas.morsch@cern.ch
29 #include "TDatabasePDG.h"
31 #include "AliGenMUONlib.h"
33 ClassImp(AliGenMUONlib)
36 Double_t AliGenMUONlib::PtPion(const Double_t *px, const Double_t* /*dummy*/)
39 // PT-PARAMETERIZATION CDF, PRL 61(88) 1819
40 // POWER LAW FOR PT > 500 MEV
41 // MT SCALING BELOW (T=160 MEV)
43 const Double_t kp0 = 1.3;
44 const Double_t kxn = 8.28;
45 const Double_t kxlim=0.5;
46 const Double_t kt=0.160;
47 const Double_t kxmpi=0.139;
49 Double_t y, y1, xmpi2, ynorm, a;
52 y1=TMath::Power(kp0/(kp0+kxlim),kxn);
54 ynorm=kb*(TMath::Exp(-sqrt(kxlim*kxlim+xmpi2)/kt));
57 y=a*TMath::Power(kp0/(kp0+x),kxn);
59 y=kb*TMath::Exp(-sqrt(x*x+xmpi2)/kt);
65 Double_t AliGenMUONlib::YPion( const Double_t *py, const Double_t */*dummy*/)
68 Double_t y=TMath::Abs(*py);
70 const Double_t ka = 7000.;
71 const Double_t kdy = 4.;
72 Double_t ex = y*y/(2*kdy*kdy);
73 return ka*TMath::Exp(-ex);
75 return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02;
78 // particle composition
80 Int_t AliGenMUONlib::IpPion(TRandom *ran)
83 if (ran->Rndm() < 0.5) {
90 //____________________________________________________________
94 Double_t AliGenMUONlib::PtScal(Double_t pt, Int_t np)
96 // SCALING EN MASSE PAR RAPPORT A PTPI
97 // MASS PI,K,ETA,RHO,OMEGA,ETA',PHI
98 const Double_t khm[10] = {.13957,.493,.5488,.769,.7826,.958,1.02,0,0,0};
99 // VALUE MESON/PI AT 5 GEV
100 const Double_t kfmax[10]={1.,0.3,0.55,1.0,1.0,1.0,1.0,0,0,0};
102 Double_t f5=TMath::Power(((sqrt(100.018215)+2.)/(sqrt(100.+khm[np]*khm[np])+2.0)),12.3);
103 Double_t fmax2=f5/kfmax[np];
105 Double_t ptpion=100.*PtPion(&pt, (Double_t*) 0);
106 Double_t fmtscal=TMath::Power(((sqrt(pt*pt+0.018215)+2.)/
107 (sqrt(pt*pt+khm[np]*khm[np])+2.0)),12.3)/ fmax2;
108 return fmtscal*ptpion;
114 //____________________________________________________________
115 Double_t AliGenMUONlib::PtKaon( const Double_t *px, const Double_t */*dummy*/)
118 return PtScal(*px,2);
122 //____________________________________________________________
123 Double_t AliGenMUONlib::YKaon( const Double_t *py, const Double_t */*dummy*/)
126 Double_t y=TMath::Abs(*py);
128 const Double_t ka = 1000.;
129 const Double_t kdy = 4.;
131 Double_t ex = y*y/(2*kdy*kdy);
132 return ka*TMath::Exp(-ex);
135 return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02;
138 // particle composition
140 Int_t AliGenMUONlib::IpKaon(TRandom *ran)
143 if (ran->Rndm() < 0.5) {
154 //____________________________________________________________
155 Double_t AliGenMUONlib::PtJpsiPPdummy(Double_t x, Double_t energy)
159 // from the fit of RHIC, CDF & LHC data, see arXiv:1103.2394
161 const Double_t kpt0 = 1.04*TMath::Power(energy,0.101);
162 const Double_t kxn = 3.9;
164 Double_t pass1 = 1.+0.363*(x/kpt0)*(x/kpt0);
165 return x/TMath::Power(pass1,kxn);
168 Double_t AliGenMUONlib::PtJpsiPP7000(const Double_t *px, const Double_t */*dummy*/)
173 return PtJpsiPPdummy(*px,7000);
176 Double_t AliGenMUONlib::PtJpsiPP2760(const Double_t *px, const Double_t */*dummy*/)
181 return PtJpsiPPdummy(*px,2760);
184 Double_t AliGenMUONlib::PtJpsiPP4400(const Double_t *px, const Double_t */*dummy*/)
189 return PtJpsiPPdummy(*px,4400);
192 Double_t AliGenMUONlib::PtJpsiPP5030(const Double_t *px, const Double_t */*dummy*/)
197 return PtJpsiPPdummy(*px,5030);
200 Double_t AliGenMUONlib::PtJpsiPP8800(const Double_t *px, const Double_t */*dummy*/)
205 return PtJpsiPPdummy(*px,8800);
208 Double_t AliGenMUONlib::PtJpsiPbPb2760ShFdummy(Double_t x, Int_t n)
210 // J/Psi shadowing factor vs pT for PbPb min. bias and 11 centr. bins (in 2.5<y<4)
212 // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.66 in 4pi
213 // S.Grigoryan, details presented at the PWG3-Muon meeting (05.10.2011)
214 // https://indico.cern.ch/conferenceDisplay.py?confId=157367
216 const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558,
217 0.428, 0.317, 0.231, 0.156};
218 const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224,
219 0.106, 0.041, 0.013, 0.002};
220 const Double_t c1[7] = {1.6077e+00, 7.6300e-02,-7.1880e-03, 3.4067e-04,
221 -9.2776e-06,1.5138e-07, 1.4652e-09};
222 const Double_t c2[7] = {6.2047e-01, 5.7653e-02,-4.1414e-03, 1.0301e-04,
223 9.6205e-07,-7.4098e-08, 5.0946e-09};
226 y1 = c1[j = 6]; y2 = c2[6];
227 while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];}
229 y1 /= 1.+c1[6]*TMath::Power(x,6);
230 y2 /= 1.+c2[6]*TMath::Power(x,6);
232 y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n];
237 Double_t AliGenMUONlib::PtJpsiPbPb2760(const Double_t *px, const Double_t *dummy)
240 // PbPb 2.76 TeV, minimum bias 0-100 %
242 return PtJpsiPbPb2760ShFdummy(*px, 0) * PtJpsiPP2760(px, dummy);
245 Double_t AliGenMUONlib::PtJpsiPbPb2760c1(const Double_t *px, const Double_t *dummy)
248 // PbPb 2.76 TeV, 1st centrality bin 0-5 %
250 return PtJpsiPbPb2760ShFdummy(*px, 1) * PtJpsiPP2760(px, dummy);
253 Double_t AliGenMUONlib::PtJpsiPbPb2760c2(const Double_t *px, const Double_t *dummy)
256 // PbPb 2.76 TeV, 2nd centrality bin 5-10 %
258 return PtJpsiPbPb2760ShFdummy(*px, 2) * PtJpsiPP2760(px, dummy);
261 Double_t AliGenMUONlib::PtJpsiPbPb2760c3(const Double_t *px, const Double_t *dummy)
264 // PbPb 2.76 TeV, 3rd centrality bin 10-20 %
266 return PtJpsiPbPb2760ShFdummy(*px, 3) * PtJpsiPP2760(px, dummy);
269 Double_t AliGenMUONlib::PtJpsiPbPb2760c4(const Double_t *px, const Double_t *dummy)
272 // PbPb 2.76 TeV, 4th centrality bin 20-30 %
274 return PtJpsiPbPb2760ShFdummy(*px, 4) * PtJpsiPP2760(px, dummy);
277 Double_t AliGenMUONlib::PtJpsiPbPb2760c5(const Double_t *px, const Double_t *dummy)
280 // PbPb 2.76 TeV, 5th centrality bin 30-40 %
282 return PtJpsiPbPb2760ShFdummy(*px, 5) * PtJpsiPP2760(px, dummy);
285 Double_t AliGenMUONlib::PtJpsiPbPb2760c6(const Double_t *px, const Double_t *dummy)
288 // PbPb 2.76 TeV, 6th centrality bin 40-50 %
290 return PtJpsiPbPb2760ShFdummy(*px, 6) * PtJpsiPP2760(px, dummy);
293 Double_t AliGenMUONlib::PtJpsiPbPb2760c7(const Double_t *px, const Double_t *dummy)
296 // PbPb 2.76 TeV, 7th centrality bin 50-60 %
298 return PtJpsiPbPb2760ShFdummy(*px, 7) * PtJpsiPP2760(px, dummy);
301 Double_t AliGenMUONlib::PtJpsiPbPb2760c8(const Double_t *px, const Double_t *dummy)
304 // PbPb 2.76 TeV, 8th centrality bin 60-70 %
306 return PtJpsiPbPb2760ShFdummy(*px, 8) * PtJpsiPP2760(px, dummy);
309 Double_t AliGenMUONlib::PtJpsiPbPb2760c9(const Double_t *px, const Double_t *dummy)
312 // PbPb 2.76 TeV, 9th centrality bin 70-80 %
314 return PtJpsiPbPb2760ShFdummy(*px, 9) * PtJpsiPP2760(px, dummy);
317 Double_t AliGenMUONlib::PtJpsiPbPb2760c10(const Double_t *px, const Double_t *dummy)
320 // PbPb 2.76 TeV, 10th centrality bin 80-90 %
322 return PtJpsiPbPb2760ShFdummy(*px, 10) * PtJpsiPP2760(px, dummy);
325 Double_t AliGenMUONlib::PtJpsiPbPb2760c11(const Double_t *px, const Double_t *dummy)
328 // PbPb 2.76 TeV, 11th centrality bin 90-100 %
330 return PtJpsiPbPb2760ShFdummy(*px, 11) * PtJpsiPP2760(px, dummy);
333 Double_t AliGenMUONlib::PtJpsiPPb5030ShFdummy(Double_t x, Int_t n)
335 // J/Psi shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4)
337 // pPb 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.81 in 4pi
339 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
340 const Double_t c[7] = {6.675e-01, 1.808e-02, 2.721e-03,-7.793e-04, 7.504e-05,-3.884e-06, 5.759e-07};
344 while (j > 0) y = y * x + c[--j];
345 y /= 1 + c[6]*TMath::Power(x,6);
347 return 1 + (y-1)*f[n];
350 Double_t AliGenMUONlib::PtJpsiPPb5030(const Double_t *px, const Double_t *dummy)
353 // pPb 5.03 TeV, minimum bias 0-100 %
355 return PtJpsiPPb5030ShFdummy(*px, 0) * PtJpsiPP5030(px, dummy);
358 Double_t AliGenMUONlib::PtJpsiPPb5030c1(const Double_t *px, const Double_t *dummy)
361 // pPb 5.03 TeV, 1st centrality bin 0-20 %
363 return PtJpsiPPb5030ShFdummy(*px, 1) * PtJpsiPP5030(px, dummy);
366 Double_t AliGenMUONlib::PtJpsiPPb5030c2(const Double_t *px, const Double_t *dummy)
369 // pPb 5.03 TeV, 2nd centrality bin 20-40 %
371 return PtJpsiPPb5030ShFdummy(*px, 2) * PtJpsiPP5030(px, dummy);
374 Double_t AliGenMUONlib::PtJpsiPPb5030c3(const Double_t *px, const Double_t *dummy)
377 // pPb 5.03 TeV, 3rd centrality bin 40-60 %
379 return PtJpsiPPb5030ShFdummy(*px, 3) * PtJpsiPP5030(px, dummy);
382 Double_t AliGenMUONlib::PtJpsiPPb5030c4(const Double_t *px, const Double_t *dummy)
385 // pPb 5.03 TeV, 4th centrality bin 60-100 %
387 return PtJpsiPPb5030ShFdummy(*px, 4) * PtJpsiPP5030(px, dummy);
390 Double_t AliGenMUONlib::PtJpsiPbP5030ShFdummy(Double_t x, Int_t n)
392 // J/Psi shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4)
394 // Pbp 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.81 in 4pi
396 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
397 const Double_t c[7] = {8.966e-01, 3.498e-02, 6.637e-03,-1.765e-03, 1.240e-04,-2.086e-06, 4.062e-07};
401 while (j > 0) y = y * x + c[--j];
402 y /= 1 + c[6]*TMath::Power(x,6);
404 return 1 + (y-1)*f[n];
407 Double_t AliGenMUONlib::PtJpsiPbP5030(const Double_t *px, const Double_t *dummy)
410 // Pbp 5.03 TeV, minimum bias 0-100 %
412 return PtJpsiPbP5030ShFdummy(*px, 0) * PtJpsiPP5030(px, dummy);
415 Double_t AliGenMUONlib::PtJpsiPbP5030c1(const Double_t *px, const Double_t *dummy)
418 // Pbp 5.03 TeV, 1st centrality bin 0-20 %
420 return PtJpsiPbP5030ShFdummy(*px, 1) * PtJpsiPP5030(px, dummy);
423 Double_t AliGenMUONlib::PtJpsiPbP5030c2(const Double_t *px, const Double_t *dummy)
426 // Pbp 5.03 TeV, 2nd centrality bin 20-40 %
428 return PtJpsiPbP5030ShFdummy(*px, 2) * PtJpsiPP5030(px, dummy);
431 Double_t AliGenMUONlib::PtJpsiPbP5030c3(const Double_t *px, const Double_t *dummy)
434 // Pbp 5.03 TeV, 3rd centrality bin 40-60 %
436 return PtJpsiPbP5030ShFdummy(*px, 3) * PtJpsiPP5030(px, dummy);
439 Double_t AliGenMUONlib::PtJpsiPbP5030c4(const Double_t *px, const Double_t *dummy)
442 // Pbp 5.03 TeV, 4th centrality bin 60-100 %
444 return PtJpsiPbP5030ShFdummy(*px, 4) * PtJpsiPP5030(px, dummy);
447 Double_t AliGenMUONlib::PtJpsiPPb8800ShFdummy(Double_t x, Int_t n)
449 // J/Psi shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4)
451 // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi
453 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
454 const Double_t c[7] = {6.4922e-01, 6.4857e-03, 4.7268e-03,-9.5075e-04,
455 8.4075e-05,-4.2006e-06, 4.9970e-07};
459 while (j > 0) y = y * x + c[--j];
460 y /= 1 + c[6]*TMath::Power(x,6);
462 return 1 + (y-1)*f[n];
465 Double_t AliGenMUONlib::PtJpsiPPb8800(const Double_t *px, const Double_t *dummy)
468 // pPb 8.8 TeV, minimum bias 0-100 %
470 return PtJpsiPPb8800ShFdummy(*px, 0) * PtJpsiPP8800(px, dummy);
473 Double_t AliGenMUONlib::PtJpsiPPb8800c1(const Double_t *px, const Double_t *dummy)
476 // pPb 8.8 TeV, 1st centrality bin 0-20 %
478 return PtJpsiPPb8800ShFdummy(*px, 1) * PtJpsiPP8800(px, dummy);
481 Double_t AliGenMUONlib::PtJpsiPPb8800c2(const Double_t *px, const Double_t *dummy)
484 // pPb 8.8 TeV, 2nd centrality bin 20-40 %
486 return PtJpsiPPb8800ShFdummy(*px, 2) * PtJpsiPP8800(px, dummy);
489 Double_t AliGenMUONlib::PtJpsiPPb8800c3(const Double_t *px, const Double_t *dummy)
492 // pPb 8.8 TeV, 3rd centrality bin 40-60 %
494 return PtJpsiPPb8800ShFdummy(*px, 3) * PtJpsiPP8800(px, dummy);
497 Double_t AliGenMUONlib::PtJpsiPPb8800c4(const Double_t *px, const Double_t *dummy)
500 // pPb 8.8 TeV, 4th centrality bin 60-100 %
502 return PtJpsiPPb8800ShFdummy(*px, 4) * PtJpsiPP8800(px, dummy);
505 Double_t AliGenMUONlib::PtJpsiPbP8800ShFdummy(Double_t x, Int_t n)
507 // J/Psi shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4)
509 // Pbp 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi
511 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
512 const Double_t c[7] = {8.7562e-01, 2.1944e-02, 7.8509e-03,-1.3979e-03,
513 3.8513e-05, 4.2008e-06, 1.7088e-06};
517 while (j > 0) y = y * x + c[--j];
518 y /= 1 + c[6]*TMath::Power(x,6);
520 return 1 + (y-1)*f[n];
523 Double_t AliGenMUONlib::PtJpsiPbP8800(const Double_t *px, const Double_t *dummy)
526 // Pbp 8.8 TeV, minimum bias 0-100 %
528 return PtJpsiPbP8800ShFdummy(*px, 0) * PtJpsiPP8800(px, dummy);
531 Double_t AliGenMUONlib::PtJpsiPbP8800c1(const Double_t *px, const Double_t *dummy)
534 // Pbp 8.8 TeV, 1st centrality bin 0-20 %
536 return PtJpsiPbP8800ShFdummy(*px, 1) * PtJpsiPP8800(px, dummy);
539 Double_t AliGenMUONlib::PtJpsiPbP8800c2(const Double_t *px, const Double_t *dummy)
542 // Pbp 8.8 TeV, 2nd centrality bin 20-40 %
544 return PtJpsiPbP8800ShFdummy(*px, 2) * PtJpsiPP8800(px, dummy);
547 Double_t AliGenMUONlib::PtJpsiPbP8800c3(const Double_t *px, const Double_t *dummy)
550 // Pbp 8.8 TeV, 3rd centrality bin 40-60 %
552 return PtJpsiPbP8800ShFdummy(*px, 3) * PtJpsiPP8800(px, dummy);
555 Double_t AliGenMUONlib::PtJpsiPbP8800c4(const Double_t *px, const Double_t *dummy)
558 // Pbp 8.8 TeV, 4th centrality bin 60-100 %
560 return PtJpsiPbP8800ShFdummy(*px, 4) * PtJpsiPP8800(px, dummy);
563 Double_t AliGenMUONlib::PtJpsi( const Double_t *px, const Double_t */*dummy*/)
566 const Double_t kpt0 = 4.;
567 const Double_t kxn = 3.6;
570 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
571 return x/TMath::Power(pass1,kxn);
574 Double_t AliGenMUONlib::PtJpsiCDFscaled( const Double_t *px, const Double_t */*dummy*/)
579 // scaled from CDF data at 2 TeV
580 // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008
582 const Double_t kpt0 = 5.100;
583 const Double_t kxn = 4.102;
586 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
587 return x/TMath::Power(pass1,kxn);
590 Double_t AliGenMUONlib::PtJpsiCDFscaledPP( const Double_t *px, const Double_t */*dummy*/)
595 // scaled from CDF data at 2 TeV
597 const Double_t kpt0 = 5.630;
598 const Double_t kxn = 4.071;
601 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
602 return x/TMath::Power(pass1,kxn);
605 Double_t AliGenMUONlib::PtJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/)
610 // scaled from CDF data at 2 TeV
612 const Double_t kpt0 = 5.334;
613 const Double_t kxn = 4.071;
616 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
617 return x/TMath::Power(pass1,kxn);
620 Double_t AliGenMUONlib::PtJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/)
625 // scaled from CDF data at 2 TeV
627 const Double_t kpt0 = 5.245;
628 const Double_t kxn = 4.071;
631 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
632 return x/TMath::Power(pass1,kxn);
635 Double_t AliGenMUONlib::PtJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/)
640 // scaled from CDF data at 2 TeV
642 const Double_t kpt0 = 5.072;
643 const Double_t kxn = 4.071;
646 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
647 return x/TMath::Power(pass1,kxn);
650 Double_t AliGenMUONlib::PtJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/)
655 // scaled from CDF data at 2 TeV
657 const Double_t kpt0 = 4.647;
658 const Double_t kxn = 4.071;
661 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
662 return x/TMath::Power(pass1,kxn);
665 Double_t AliGenMUONlib::PtJpsiCDFscaledPP3( const Double_t *px, const Double_t */*dummy*/)
670 // scaled from CDF data at 1.9 TeV
672 const Double_t kpt0 = 4.435;
673 const Double_t kxn = 4.071;
676 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
677 return x/TMath::Power(pass1,kxn);
680 Double_t AliGenMUONlib::PtJpsiCDFscaledPP2( const Double_t *px, const Double_t */*dummy*/)
685 // fit of the CDF data at 1.96 TeV
687 const Double_t kpt0 = 4.233;
688 const Double_t kxn = 4.071;
691 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
692 return x/TMath::Power(pass1,kxn);
695 Double_t AliGenMUONlib::PtJpsiCDFscaledPPb9( const Double_t *px, const Double_t *dummy)
699 // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79
701 Double_t c[5] = {6.42774e-01, 1.86168e-02, -6.77296e-04, 8.93512e-06, 1.31586e-07};
706 while (j > 0) y = y * x + c[--j];
708 Double_t d = 1.+c[4]*TMath::Power(x,4);
709 return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy);
712 Double_t AliGenMUONlib::PtJpsiCDFscaledPbP9( const Double_t *px, const Double_t *dummy)
716 // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79
718 Double_t c[5] = {8.58557e-01, 5.39791e-02, -4.75180e-03, 2.49463e-04, 5.52396e-05};
723 while (j > 0) y = y * x + c[--j];
725 Double_t d = 1.+c[4]*TMath::Power(x,4);
726 return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy);
729 Double_t AliGenMUONlib::PtJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy)
733 // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66
735 Double_t c[5] = {6.01022e-01, 4.70988e-02, -2.27917e-03, 3.09885e-05, 1.31955e-06};
740 while (j > 0) y = y * x + c[--j];
742 Double_t d = 1.+c[4]*TMath::Power(x,4);
743 return y/d * AliGenMUONlib::PtJpsiCDFscaledPP4(px,dummy);
746 Double_t AliGenMUONlib::PtJpsiFlat( const Double_t */*px*/, const Double_t */*dummy*/ )
751 Double_t AliGenMUONlib::PtJpsiPbPb( const Double_t *px, const Double_t */*dummy*/)
758 // mc = 1.4 GeV, pt-kick 1 GeV
762 -2.13098e+00, 9.46552e+00, -5.06799e+00, 1.27260e+00,
763 -1.83806e-01, 1.55853e-02, -7.23241e-04, 1.42105e-05
770 while (j > 0) y = y * x +c[--j];
771 y = x * TMath::Exp(y);
778 Double_t AliGenMUONlib::PtJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/)
782 Double_t x0 = 4.0384;
786 Double_t y = x / TMath::Power((1. + (x/x0)*(x/x0)), n);
792 Double_t AliGenMUONlib::PtJpsiPP( const Double_t *px, const Double_t */*dummy*/)
799 // mc = 1.4 GeV, pt-kick 1 GeV
802 Float_t c[4] = {8.47471e+00, -1.93567e+00, 1.50271e-01, -5.51212e-03};
808 while (j > 0) y = y * x +c[--j];
809 y = x * TMath::Exp(y);
818 //____________________________________________________________
819 Double_t AliGenMUONlib::YJpsiPPdummy(Double_t x, Double_t energy)
823 // from the fit of RHIC + LHC data, see arXiv:1103.2394
825 x = x/TMath::Log(energy/3.097);
827 Double_t y = TMath::Exp(-x/0.4/0.4/2);
832 Double_t AliGenMUONlib::YJpsiPPpoly(Double_t x, Double_t energy)
836 // from the fit of RHIC + LHC data, see arXiv:1103.2394
838 x = x/TMath::Log(energy/3.097);
840 Double_t y = 1 - 6.9*x*x;
845 Double_t AliGenMUONlib::YJpsiPP7000(const Double_t *px, const Double_t */*dummy*/)
850 return YJpsiPPdummy(*px, 7000);
853 Double_t AliGenMUONlib::YJpsiPP2760(const Double_t *px, const Double_t */*dummy*/)
858 return YJpsiPPdummy(*px, 2760);
861 Double_t AliGenMUONlib::YJpsiPP4400(const Double_t *px, const Double_t */*dummy*/)
866 return YJpsiPPdummy(*px, 4400);
869 Double_t AliGenMUONlib::YJpsiPP5030(const Double_t *px, const Double_t */*dummy*/)
874 return YJpsiPPdummy(*px, 5030);
877 Double_t AliGenMUONlib::YJpsiPP8800(const Double_t *px, const Double_t */*dummy*/)
882 return YJpsiPPdummy(*px, 8800);
885 Double_t AliGenMUONlib::YJpsiPPpoly7000(const Double_t *px, const Double_t */*dummy*/)
890 return YJpsiPPpoly(*px, 7000);
893 Double_t AliGenMUONlib::YJpsiPPpoly2760(const Double_t *px, const Double_t */*dummy*/)
898 return YJpsiPPpoly(*px, 2760);
901 Double_t AliGenMUONlib::YJpsiPbPb2760ShFdummy(Double_t x, Int_t n)
903 // J/Psi shadowing factor vs y for PbPb min. bias and 11 centr. bins
905 // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.66 in 4pi
907 const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558,
908 0.428, 0.317, 0.231, 0.156};
909 const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224,
910 0.106, 0.041, 0.013, 0.002};
911 const Double_t c1[5] = {1.5591e+00, 7.5827e-03, 2.0676e-03,-1.1717e-04, 1.5237e-06};
912 const Double_t c2[5] = {6.0861e-01, 4.8854e-03, 1.3685e-03,-7.9182e-05, 1.0475e-06};
917 y1 = c1[j = 4]; y2 = c2[4];
918 while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];}
920 y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n];
925 Double_t AliGenMUONlib::YJpsiPbPb2760(const Double_t *px, const Double_t *dummy)
928 // PbPb 2.76 TeV, minimum bias 0-100 %
930 return YJpsiPbPb2760ShFdummy(*px, 0) * YJpsiPP2760(px, dummy);
933 Double_t AliGenMUONlib::YJpsiPbPb2760c1(const Double_t *px, const Double_t *dummy)
936 // PbPb 2.76 TeV, 1st centrality bin 0-5 %
938 return YJpsiPbPb2760ShFdummy(*px, 1) * YJpsiPP2760(px, dummy);
941 Double_t AliGenMUONlib::YJpsiPbPb2760c2(const Double_t *px, const Double_t *dummy)
944 // PbPb 2.76 TeV, 2nd centrality bin 5-10 %
946 return YJpsiPbPb2760ShFdummy(*px, 2) * YJpsiPP2760(px, dummy);
949 Double_t AliGenMUONlib::YJpsiPbPb2760c3(const Double_t *px, const Double_t *dummy)
952 // PbPb 2.76 TeV, 3rd centrality bin 10-20 %
954 return YJpsiPbPb2760ShFdummy(*px, 3) * YJpsiPP2760(px, dummy);
957 Double_t AliGenMUONlib::YJpsiPbPb2760c4(const Double_t *px, const Double_t *dummy)
960 // PbPb 2.76 TeV, 4th centrality bin 20-30 %
962 return YJpsiPbPb2760ShFdummy(*px, 4) * YJpsiPP2760(px, dummy);
965 Double_t AliGenMUONlib::YJpsiPbPb2760c5(const Double_t *px, const Double_t *dummy)
968 // PbPb 2.76 TeV, 5th centrality bin 30-40 %
970 return YJpsiPbPb2760ShFdummy(*px, 5) * YJpsiPP2760(px, dummy);
973 Double_t AliGenMUONlib::YJpsiPbPb2760c6(const Double_t *px, const Double_t *dummy)
976 // PbPb 2.76 TeV, 6th centrality bin 40-50 %
978 return YJpsiPbPb2760ShFdummy(*px, 6) * YJpsiPP2760(px, dummy);
981 Double_t AliGenMUONlib::YJpsiPbPb2760c7(const Double_t *px, const Double_t *dummy)
984 // PbPb 2.76 TeV, 7th centrality bin 50-60 %
986 return YJpsiPbPb2760ShFdummy(*px, 7) * YJpsiPP2760(px, dummy);
989 Double_t AliGenMUONlib::YJpsiPbPb2760c8(const Double_t *px, const Double_t *dummy)
992 // PbPb 2.76 TeV, 8th centrality bin 60-70 %
994 return YJpsiPbPb2760ShFdummy(*px, 8) * YJpsiPP2760(px, dummy);
997 Double_t AliGenMUONlib::YJpsiPbPb2760c9(const Double_t *px, const Double_t *dummy)
1000 // PbPb 2.76 TeV, 9th centrality bin 70-80 %
1002 return YJpsiPbPb2760ShFdummy(*px, 9) * YJpsiPP2760(px, dummy);
1005 Double_t AliGenMUONlib::YJpsiPbPb2760c10(const Double_t *px, const Double_t *dummy)
1008 // PbPb 2.76 TeV, 10th centrality bin 80-90 %
1010 return YJpsiPbPb2760ShFdummy(*px, 10) * YJpsiPP2760(px, dummy);
1013 Double_t AliGenMUONlib::YJpsiPbPb2760c11(const Double_t *px, const Double_t *dummy)
1016 // PbPb 2.76 TeV, 11th centrality bin 90-100 %
1018 return YJpsiPbPb2760ShFdummy(*px, 11) * YJpsiPP2760(px, dummy);
1021 Double_t AliGenMUONlib::YJpsiPP5030dummy(Double_t px)
1023 return AliGenMUONlib::YJpsiPP5030(&px, (Double_t*) 0);
1026 Double_t AliGenMUONlib::YJpsiPPb5030ShFdummy(Double_t x, Int_t n)
1028 // J/Psi shadowing factor vs y for pPb min. bias and 4 centr. bins
1030 // pPb 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.81 in 4pi
1032 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1033 const Double_t c[7] = {7.641e-01, 1.611e-02, 4.109e-03, 2.818e-03, 3.359e-04,-6.376e-05,-9.717e-06};
1037 while (j > 0) y = y * x + c[--j];
1040 return 1 +(y-1)*f[n];
1043 Double_t AliGenMUONlib::YJpsiPPb5030(const Double_t *px, const Double_t */*dummy*/)
1046 // pPb 5.03 TeV, minimum bias 0-100 %
1048 Double_t x = px[0] + 0.47; // rapidity shift
1049 return YJpsiPPb5030ShFdummy(x, 0) * YJpsiPP5030dummy(x);
1052 Double_t AliGenMUONlib::YJpsiPPb5030c1(const Double_t *px, const Double_t */*dummy*/)
1055 // pPb 5.03 TeV, 1st centrality bin 0-20 %
1057 Double_t x = px[0] + 0.47; // rapidity shift
1058 return YJpsiPPb5030ShFdummy(x, 1) * YJpsiPP5030dummy(x);
1061 Double_t AliGenMUONlib::YJpsiPPb5030c2(const Double_t *px, const Double_t */*dummy*/)
1064 // pPb 5.03 TeV, 2nd centrality bin 20-40 %
1066 Double_t x = px[0] + 0.47; // rapidity shift
1067 return YJpsiPPb5030ShFdummy(x, 2) * YJpsiPP5030dummy(x);
1070 Double_t AliGenMUONlib::YJpsiPPb5030c3(const Double_t *px, const Double_t */*dummy*/)
1073 // pPb 5.03 TeV, 3rd centrality bin 40-60 %
1075 Double_t x = px[0] + 0.47; // rapidity shift
1076 return YJpsiPPb5030ShFdummy(x, 3) * YJpsiPP5030dummy(x);
1079 Double_t AliGenMUONlib::YJpsiPPb5030c4(const Double_t *px, const Double_t */*dummy*/)
1082 // pPb 5.03 TeV, 4th centrality bin 60-100 %
1084 Double_t x = px[0] + 0.47; // rapidity shift
1085 return YJpsiPPb5030ShFdummy(x, 4) * YJpsiPP5030dummy(x);
1088 Double_t AliGenMUONlib::YJpsiPbP5030(const Double_t *px, const Double_t */*dummy*/)
1091 // Pbp 5.03 TeV, minimum bias 0-100 %
1093 Double_t x = -px[0] + 0.47; // rapidity shift
1094 return YJpsiPPb5030ShFdummy(x, 0) * YJpsiPP5030dummy(x);
1097 Double_t AliGenMUONlib::YJpsiPbP5030c1(const Double_t *px, const Double_t */*dummy*/)
1100 // Pbp 5.03 TeV, 1st centrality bin 0-20 %
1102 Double_t x = -px[0] + 0.47; // rapidity shift
1103 return YJpsiPPb5030ShFdummy(x, 1) * YJpsiPP5030dummy(x);
1106 Double_t AliGenMUONlib::YJpsiPbP5030c2(const Double_t *px, const Double_t */*dummy*/)
1109 // Pbp 5.03 TeV, 2nd centrality bin 20-40 %
1111 Double_t x = -px[0] + 0.47; // rapidity shift
1112 return YJpsiPPb5030ShFdummy(x, 2) * YJpsiPP5030dummy(x);
1115 Double_t AliGenMUONlib::YJpsiPbP5030c3(const Double_t *px, const Double_t */*dummy*/)
1118 // Pbp 5.03 TeV, 3rd centrality bin 40-60 %
1120 Double_t x = -px[0] + 0.47; // rapidity shift
1121 return YJpsiPPb5030ShFdummy(x, 3) * YJpsiPP5030dummy(x);
1124 Double_t AliGenMUONlib::YJpsiPbP5030c4(const Double_t *px, const Double_t */*dummy*/)
1127 // Pbp 5.03 TeV, 4th centrality bin 60-100 %
1129 Double_t x = -px[0] + 0.47; // rapidity shift
1130 return YJpsiPPb5030ShFdummy(x, 4) * YJpsiPP5030dummy(x);
1133 Double_t AliGenMUONlib::YJpsiPP8800dummy(Double_t px)
1135 return AliGenMUONlib::YJpsiPP8800(&px, (Double_t*) 0);
1138 Double_t AliGenMUONlib::YJpsiPPb8800ShFdummy(Double_t x, Int_t n)
1140 // J/Psi shadowing factor vs y for pPb min. bias and 4 centr. bins
1142 // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi
1144 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1145 const Double_t c[7] = {7.4372e-01, 2.3299e-02, 2.8678e-03, 1.9595e-03,
1146 3.2849e-04,-4.0547e-05,-7.9732e-06};
1150 while (j > 0) y = y * x + c[--j];
1153 return 1 +(y-1)*f[n];
1156 Double_t AliGenMUONlib::YJpsiPPb8800(const Double_t *px, const Double_t */*dummy*/)
1159 // pPb 8.8 TeV, minimum bias 0-100 %
1161 Double_t x = px[0] + 0.47; // rapidity shift
1162 return YJpsiPPb8800ShFdummy(x, 0) * YJpsiPP8800dummy(x);
1165 Double_t AliGenMUONlib::YJpsiPPb8800c1(const Double_t *px, const Double_t */*dummy*/)
1168 // pPb 8.8 TeV, 1st centrality bin 0-20 %
1170 Double_t x = px[0] + 0.47; // rapidity shift
1171 return YJpsiPPb8800ShFdummy(x, 1) * YJpsiPP8800dummy(x);
1174 Double_t AliGenMUONlib::YJpsiPPb8800c2(const Double_t *px, const Double_t */*dummy*/)
1177 // pPb 8.8 TeV, 2nd centrality bin 20-40 %
1179 Double_t x = px[0] + 0.47; // rapidity shift
1180 return YJpsiPPb8800ShFdummy(x, 2) * YJpsiPP8800dummy(x);
1183 Double_t AliGenMUONlib::YJpsiPPb8800c3(const Double_t *px, const Double_t */*dummy*/)
1186 // pPb 8.8 TeV, 3rd centrality bin 40-60 %
1188 Double_t x = px[0] + 0.47; // rapidity shift
1189 return YJpsiPPb8800ShFdummy(x, 3) * YJpsiPP8800dummy(x);
1192 Double_t AliGenMUONlib::YJpsiPPb8800c4(const Double_t *px, const Double_t */*dummy*/)
1195 // pPb 8.8 TeV, 4th centrality bin 60-100 %
1197 Double_t x = px[0] + 0.47; // rapidity shift
1198 return YJpsiPPb8800ShFdummy(x, 4) * YJpsiPP8800dummy(x);
1201 Double_t AliGenMUONlib::YJpsiPbP8800(const Double_t *px, const Double_t */*dummy*/)
1204 // Pbp 8.8 TeV, minimum bias 0-100 %
1206 Double_t x = -px[0] + 0.47; // rapidity shift
1207 return YJpsiPPb8800ShFdummy(x, 0) * YJpsiPP8800dummy(x);
1210 Double_t AliGenMUONlib::YJpsiPbP8800c1(const Double_t *px, const Double_t */*dummy*/)
1213 // Pbp 8.8 TeV, 1st centrality bin 0-20 %
1215 Double_t x = -px[0] + 0.47; // rapidity shift
1216 return YJpsiPPb8800ShFdummy(x, 1) * YJpsiPP8800dummy(x);
1219 Double_t AliGenMUONlib::YJpsiPbP8800c2(const Double_t *px, const Double_t */*dummy*/)
1222 // Pbp 8.8 TeV, 2nd centrality bin 20-40 %
1224 Double_t x = -px[0] + 0.47; // rapidity shift
1225 return YJpsiPPb8800ShFdummy(x, 2) * YJpsiPP8800dummy(x);
1228 Double_t AliGenMUONlib::YJpsiPbP8800c3(const Double_t *px, const Double_t */*dummy*/)
1231 // Pbp 8.8 TeV, 3rd centrality bin 40-60 %
1233 Double_t x = -px[0] + 0.47; // rapidity shift
1234 return YJpsiPPb8800ShFdummy(x, 3) * YJpsiPP8800dummy(x);
1237 Double_t AliGenMUONlib::YJpsiPbP8800c4(const Double_t *px, const Double_t */*dummy*/)
1240 // Pbp 8.8 TeV, 4th centrality bin 60-100 %
1242 Double_t x = -px[0] + 0.47; // rapidity shift
1243 return YJpsiPPb8800ShFdummy(x, 4) * YJpsiPP8800dummy(x);
1246 Double_t AliGenMUONlib::YJpsi(const Double_t *py, const Double_t */*dummy*/)
1249 const Double_t ky0 = 4.;
1250 const Double_t kb=1.;
1252 Double_t y=TMath::Abs(*py);
1257 yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
1261 Double_t AliGenMUONlib::YJpsiFlat( const Double_t */*py*/, const Double_t */*dummy*/ )
1267 Double_t AliGenMUONlib::YJpsiPbPb( const Double_t *px, const Double_t */*dummy*/)
1277 // mc = 1.4 GeV, pt-kick 1 GeV
1279 Double_t c[5] = {-6.03425e+02, 4.98257e+02, -1.38794e+02, 1.62209e+01, -6.85955e-01};
1280 Double_t x = TMath::Abs(px[0]);
1288 while (j > 0) y = y * x + c[--j];
1296 Double_t AliGenMUONlib::YJpsiCDFscaled( const Double_t *px, const Double_t* dummy)
1299 return AliGenMUONlib::YJpsiPbPb(px, dummy);
1302 Double_t AliGenMUONlib::YJpsiCDFscaledPP( const Double_t *px, const Double_t* dummy)
1305 return AliGenMUONlib::YJpsiPP(px, dummy);
1308 Double_t AliGenMUONlib::YJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/)
1313 // scaled from YJpsiPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD.
1314 // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008
1317 Double_t c[5] = {2.46681e+01, 8.91486e+01, -3.21227e+01, 3.63075e+00, -1.32047e-01};
1319 Double_t x = TMath::Abs(px[0]);
1323 y = 98.523 - 1.3664 * x * x;
1324 } else if (x < 7.5) {
1327 while (j > 0) y = y * x + c[--j];
1337 Double_t AliGenMUONlib::YJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/)
1342 // rescaling of YJpsiPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD
1344 Double_t c[5] = {3.33882e+02, -1.30980e+02, 2.59082e+01, -3.08935e+00, 1.56375e-01};
1345 Double_t x = TMath::Abs(px[0]);
1349 y = 99.236 - 1.5498 * x * x;
1350 } else if (x < 7.4) {
1353 while (j > 0) y = y * x + c[--j];
1363 Double_t AliGenMUONlib::YJpsiCDFscaledPP9dummy(Double_t px)
1365 return AliGenMUONlib::YJpsiCDFscaledPP9(&px, (Double_t*) 0);
1368 Double_t AliGenMUONlib::YJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/)
1373 // scaled from YJpsiPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD.
1376 Double_t c[5] = {6.71181e+02, -3.69240e+02, 8.89644e+01, -1.04937e+01, 4.80959e-01};
1378 Double_t x = TMath::Abs(px[0]);
1382 y = 100.78 - 1.8353 * x * x;
1383 } else if (x < 7.3) {
1386 while (j > 0) y = y * x + c[--j];
1396 Double_t AliGenMUONlib::YJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/)
1401 // rescaling of YJpsiPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD
1403 Double_t c[5] = {4.00785e+02, -1.41159e+01, -3.28599e+01, 5.53048e+00, -2.45151e-01};
1404 Double_t x = TMath::Abs(px[0]);
1408 y = 107.389 - 2.7454 * x * x;
1409 } else if (x < 7.0) {
1412 while (j > 0) y = y * x + c[--j];
1422 Double_t AliGenMUONlib::YJpsiCDFscaledPP3( const Double_t *px, const Double_t *dummy)
1425 return AliGenMUONlib::YJpsiPP2760(px, dummy);
1428 Double_t AliGenMUONlib::YJpsiCDFscaledPP2( const Double_t *px, const Double_t */*dummy*/)
1433 return YJpsiPPdummy(*px, 1960);
1436 Double_t AliGenMUONlib::YJpsiPP( const Double_t *px, const Double_t */*dummy*/)
1446 // mc = 1.4 GeV, pt-kick 1 GeV
1449 Double_t c[5] = {1.38532e+00, 1.00596e+02, -3.46378e+01, 3.94172e+00, -1.48319e-01};
1450 Double_t x = TMath::Abs(px[0]);
1454 y = 96.455 - 0.8483 * x * x;
1455 } else if (x < 7.9) {
1458 while (j > 0) y = y * x + c[--j];
1466 Double_t AliGenMUONlib::YJpsiCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/)
1470 // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79
1472 Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04,
1473 -4.16509e-05,-7.62709e-06};
1475 Double_t x = px[0] + 0.47; // rapidity shift
1478 while (j > 0) y = y * x + c[--j];
1481 return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x);
1484 Double_t AliGenMUONlib::YJpsiCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/)
1488 // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79
1490 Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04,
1491 -4.16509e-05,-7.62709e-06};
1493 Double_t x = -px[0] + 0.47; // rapidity shift
1496 while (j > 0) y = y * x + c[--j];
1499 return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x);
1502 Double_t AliGenMUONlib::YJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy)
1506 // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66
1508 Double_t c[4] = {5.95228e-01, 9.45069e-03, 2.44710e-04, -1.32894e-05};
1509 Double_t x = px[0]*px[0];
1513 while (j > 0) y = y * x + c[--j];
1516 return y * AliGenMUONlib::YJpsiCDFscaledPP4(px,dummy);
1519 Double_t AliGenMUONlib::YJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/)
1523 // J/Psi from B->J/Psi X
1528 Double_t c[7] = {7.37025e-02, 0., -2.94487e-03, 0., 6.07953e-06, 0., 5.39219e-07};
1530 Double_t x = TMath::Abs(px[0]);
1538 while (j > 0) y = y * x + c[--j];
1546 // particle composition
1548 Int_t AliGenMUONlib::IpJpsi(TRandom *)
1550 // J/Psi composition
1553 Int_t AliGenMUONlib::IpPsiP(TRandom *)
1555 // Psi prime composition
1558 Int_t AliGenMUONlib::IpJpsiFamily(TRandom *)
1560 // J/Psi composition
1562 Float_t r = gRandom->Rndm();
1577 //____________________________________________________________
1578 Double_t AliGenMUONlib::PtUpsilonPPdummy(Double_t x, Double_t energy)
1582 // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394
1584 const Double_t kpt0 = 1.96*TMath::Power(energy,0.095);
1585 const Double_t kxn = 3.4;
1587 Double_t pass1 = 1.+0.471*(x/kpt0)*(x/kpt0);
1588 return x/TMath::Power(pass1,kxn);
1591 Double_t AliGenMUONlib::PtUpsilonPP7000(const Double_t *px, const Double_t */*dummy*/)
1596 return PtUpsilonPPdummy(*px,7000);
1599 Double_t AliGenMUONlib::PtUpsilonPP2760(const Double_t *px, const Double_t */*dummy*/)
1604 return PtUpsilonPPdummy(*px,2760);
1607 Double_t AliGenMUONlib::PtUpsilonPP4400(const Double_t *px, const Double_t */*dummy*/)
1612 return PtUpsilonPPdummy(*px,4400);
1615 Double_t AliGenMUONlib::PtUpsilonPP5030(const Double_t *px, const Double_t */*dummy*/)
1620 return PtUpsilonPPdummy(*px,5030);
1623 Double_t AliGenMUONlib::PtUpsilonPP8800(const Double_t *px, const Double_t */*dummy*/)
1628 return PtUpsilonPPdummy(*px,8800);
1631 Double_t AliGenMUONlib::PtUpsilonPbPb2760ShFdummy(Double_t x, Int_t n)
1633 // Usilon shadowing factor vs pT for PbPb min. bias and 11 centr. bins (in 2.5<y<4)
1635 // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.87 in 4pi
1637 const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558,
1638 0.428, 0.317, 0.231, 0.156};
1639 const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224,
1640 0.106, 0.041, 0.013, 0.002};
1641 const Double_t c1[7] = {1.9089e+00, 1.2969e-03, 8.9786e-05,-5.3062e-06,
1642 -1.0046e-06,6.1446e-08, 1.0885e-09};
1643 const Double_t c2[7] = {8.8423e-01,-8.7488e-05, 5.9857e-04,-5.7959e-05,
1644 2.0059e-06,-2.7343e-08, 6.6053e-10};
1647 y1 = c1[j = 6]; y2 = c2[6];
1648 while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];}
1650 y1 /= 1.+c1[6]*TMath::Power(x,6);
1651 y2 /= 1.+c2[6]*TMath::Power(x,6);
1653 y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n];
1658 Double_t AliGenMUONlib::PtUpsilonPbPb2760(const Double_t *px, const Double_t *dummy)
1661 // PbPb 2.76 TeV, minimum bias 0-100 %
1663 return PtUpsilonPbPb2760ShFdummy(*px, 0) * PtUpsilonPP2760(px, dummy);
1666 Double_t AliGenMUONlib::PtUpsilonPbPb2760c1(const Double_t *px, const Double_t *dummy)
1669 // PbPb 2.76 TeV, 1st centrality bin 0-5 %
1671 return PtUpsilonPbPb2760ShFdummy(*px, 1) * PtUpsilonPP2760(px, dummy);
1674 Double_t AliGenMUONlib::PtUpsilonPbPb2760c2(const Double_t *px, const Double_t *dummy)
1677 // PbPb 2.76 TeV, 2nd centrality bin 5-10 %
1679 return PtUpsilonPbPb2760ShFdummy(*px, 2) * PtUpsilonPP2760(px, dummy);
1682 Double_t AliGenMUONlib::PtUpsilonPbPb2760c3(const Double_t *px, const Double_t *dummy)
1685 // PbPb 2.76 TeV, 3rd centrality bin 10-20 %
1687 return PtUpsilonPbPb2760ShFdummy(*px, 3) * PtUpsilonPP2760(px, dummy);
1690 Double_t AliGenMUONlib::PtUpsilonPbPb2760c4(const Double_t *px, const Double_t *dummy)
1693 // PbPb 2.76 TeV, 4th centrality bin 20-30 %
1695 return PtUpsilonPbPb2760ShFdummy(*px, 4) * PtUpsilonPP2760(px, dummy);
1698 Double_t AliGenMUONlib::PtUpsilonPbPb2760c5(const Double_t *px, const Double_t *dummy)
1701 // PbPb 2.76 TeV, 5th centrality bin 30-40 %
1703 return PtUpsilonPbPb2760ShFdummy(*px, 5) * PtUpsilonPP2760(px, dummy);
1706 Double_t AliGenMUONlib::PtUpsilonPbPb2760c6(const Double_t *px, const Double_t *dummy)
1709 // PbPb 2.76 TeV, 6th centrality bin 40-50 %
1711 return PtUpsilonPbPb2760ShFdummy(*px, 6) * PtUpsilonPP2760(px, dummy);
1714 Double_t AliGenMUONlib::PtUpsilonPbPb2760c7(const Double_t *px, const Double_t *dummy)
1717 // PbPb 2.76 TeV, 7th centrality bin 50-60 %
1719 return PtUpsilonPbPb2760ShFdummy(*px, 7) * PtUpsilonPP2760(px, dummy);
1722 Double_t AliGenMUONlib::PtUpsilonPbPb2760c8(const Double_t *px, const Double_t *dummy)
1725 // PbPb 2.76 TeV, 8th centrality bin 60-70 %
1727 return PtUpsilonPbPb2760ShFdummy(*px, 8) * PtUpsilonPP2760(px, dummy);
1730 Double_t AliGenMUONlib::PtUpsilonPbPb2760c9(const Double_t *px, const Double_t *dummy)
1733 // PbPb 2.76 TeV, 9th centrality bin 70-80 %
1735 return PtUpsilonPbPb2760ShFdummy(*px, 9) * PtUpsilonPP2760(px, dummy);
1738 Double_t AliGenMUONlib::PtUpsilonPbPb2760c10(const Double_t *px, const Double_t *dummy)
1741 // PbPb 2.76 TeV, 10th centrality bin 80-90 %
1743 return PtUpsilonPbPb2760ShFdummy(*px, 10) * PtUpsilonPP2760(px, dummy);
1746 Double_t AliGenMUONlib::PtUpsilonPbPb2760c11(const Double_t *px, const Double_t *dummy)
1749 // PbPb 2.76 TeV, 11th centrality bin 90-100 %
1751 return PtUpsilonPbPb2760ShFdummy(*px, 11) * PtUpsilonPP2760(px, dummy);
1754 Double_t AliGenMUONlib::PtUpsilonPPb5030ShFdummy(Double_t x, Int_t n)
1756 // Upsilon shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4)
1758 // pPb 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.92 in 4pi
1760 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1761 const Double_t c[5] = {8.069e-01, 1.407e-04, 4.372e-04,-2.797e-05, 4.405e-06};
1765 while (j > 0) y = y * x + c[--j];
1766 y /= 1 + c[4]*TMath::Power(x,4);
1768 return 1 + (y-1)*f[n];
1771 Double_t AliGenMUONlib::PtUpsilonPPb5030(const Double_t *px, const Double_t *dummy)
1774 // pPb 5.03 TeV, minimum bias 0-100 %
1776 return PtUpsilonPPb5030ShFdummy(*px, 0) * PtUpsilonPP5030(px, dummy);
1779 Double_t AliGenMUONlib::PtUpsilonPPb5030c1(const Double_t *px, const Double_t *dummy)
1782 // pPb 5.03 TeV, 1st centrality bin 0-20 %
1784 return PtUpsilonPPb5030ShFdummy(*px, 1) * PtUpsilonPP5030(px, dummy);
1787 Double_t AliGenMUONlib::PtUpsilonPPb5030c2(const Double_t *px, const Double_t *dummy)
1790 // pPb 5.03 TeV, 2nd centrality bin 20-40 %
1792 return PtUpsilonPPb5030ShFdummy(*px, 2) * PtUpsilonPP5030(px, dummy);
1795 Double_t AliGenMUONlib::PtUpsilonPPb5030c3(const Double_t *px, const Double_t *dummy)
1798 // pPb 5.03 TeV, 3rd centrality bin 40-60 %
1800 return PtUpsilonPPb5030ShFdummy(*px, 3) * PtUpsilonPP5030(px, dummy);
1803 Double_t AliGenMUONlib::PtUpsilonPPb5030c4(const Double_t *px, const Double_t *dummy)
1806 // pPb 5.03 TeV, 4th centrality bin 60-100 %
1808 return PtUpsilonPPb5030ShFdummy(*px, 4) * PtUpsilonPP5030(px, dummy);
1811 Double_t AliGenMUONlib::PtUpsilonPbP5030ShFdummy(Double_t x, Int_t n)
1813 // Upsilon shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4)
1815 // Pbp 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.92 in 4pi
1817 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1818 const Double_t c[5] = {1.122, 2.565e-03,-3.025e-04, 4.113e-06, 6.140e-07};
1822 while (j > 0) y = y * x + c[--j];
1823 y /= 1 + c[4]*TMath::Power(x,4);
1825 return 1 + (y-1)*f[n];
1828 Double_t AliGenMUONlib::PtUpsilonPbP5030(const Double_t *px, const Double_t *dummy)
1831 // Pbp 5.03 TeV, minimum bias 0-100 %
1833 return PtUpsilonPbP5030ShFdummy(*px, 0) * PtUpsilonPP5030(px, dummy);
1836 Double_t AliGenMUONlib::PtUpsilonPbP5030c1(const Double_t *px, const Double_t *dummy)
1839 // Pbp 5.03 TeV, 1st centrality bin 0-20 %
1841 return PtUpsilonPbP5030ShFdummy(*px, 1) * PtUpsilonPP5030(px, dummy);
1844 Double_t AliGenMUONlib::PtUpsilonPbP5030c2(const Double_t *px, const Double_t *dummy)
1847 // Pbp 5.03 TeV, 2nd centrality bin 20-40 %
1849 return PtUpsilonPbP5030ShFdummy(*px, 2) * PtUpsilonPP5030(px, dummy);
1852 Double_t AliGenMUONlib::PtUpsilonPbP5030c3(const Double_t *px, const Double_t *dummy)
1855 // Pbp 5.03 TeV, 3rd centrality bin 40-60 %
1857 return PtUpsilonPbP5030ShFdummy(*px, 3) * PtUpsilonPP5030(px, dummy);
1860 Double_t AliGenMUONlib::PtUpsilonPbP5030c4(const Double_t *px, const Double_t *dummy)
1863 // Pbp 5.03 TeV, 4th centrality bin 60-100 %
1865 return PtUpsilonPbP5030ShFdummy(*px, 4) * PtUpsilonPP5030(px, dummy);
1868 Double_t AliGenMUONlib::PtUpsilonPPb8800ShFdummy(Double_t x, Int_t n)
1870 // Upsilon shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4)
1872 // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi
1874 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1875 const Double_t c[5] = {7.6561e-01, 1.1360e-04, 4.9596e-04,-3.0287e-05, 3.7555e-06};
1879 while (j > 0) y = y * x + c[--j];
1880 y /= 1 + c[4]*TMath::Power(x,4);
1882 return 1 + (y-1)*f[n];
1885 Double_t AliGenMUONlib::PtUpsilonPPb8800(const Double_t *px, const Double_t *dummy)
1888 // pPb 8.8 TeV, minimum bias 0-100 %
1890 return PtUpsilonPPb8800ShFdummy(*px, 0) * PtUpsilonPP8800(px, dummy);
1893 Double_t AliGenMUONlib::PtUpsilonPPb8800c1(const Double_t *px, const Double_t *dummy)
1896 // pPb 8.8 TeV, 1st centrality bin 0-20 %
1898 return PtUpsilonPPb8800ShFdummy(*px, 1) * PtUpsilonPP8800(px, dummy);
1901 Double_t AliGenMUONlib::PtUpsilonPPb8800c2(const Double_t *px, const Double_t *dummy)
1904 // pPb 8.8 TeV, 2nd centrality bin 20-40 %
1906 return PtUpsilonPPb8800ShFdummy(*px, 2) * PtUpsilonPP8800(px, dummy);
1909 Double_t AliGenMUONlib::PtUpsilonPPb8800c3(const Double_t *px, const Double_t *dummy)
1912 // pPb 8.8 TeV, 3rd centrality bin 40-60 %
1914 return PtUpsilonPPb8800ShFdummy(*px, 3) * PtUpsilonPP8800(px, dummy);
1917 Double_t AliGenMUONlib::PtUpsilonPPb8800c4(const Double_t *px, const Double_t *dummy)
1920 // pPb 8.8 TeV, 4th centrality bin 60-100 %
1922 return PtUpsilonPPb8800ShFdummy(*px, 4) * PtUpsilonPP8800(px, dummy);
1925 Double_t AliGenMUONlib::PtUpsilonPbP8800ShFdummy(Double_t x, Int_t n)
1927 // Upsilon shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4)
1929 // Pbp 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi
1931 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
1932 const Double_t c[5] = {1.0975, 3.1905e-03,-2.0477e-04, 8.5270e-06, 2.5343e-06};
1936 while (j > 0) y = y * x + c[--j];
1937 y /= 1 + c[4]*TMath::Power(x,4);
1939 return 1 + (y-1)*f[n];
1942 Double_t AliGenMUONlib::PtUpsilonPbP8800(const Double_t *px, const Double_t *dummy)
1945 // Pbp 8.8 TeV, minimum bias 0-100 %
1947 return PtUpsilonPbP8800ShFdummy(*px, 0) * PtUpsilonPP8800(px, dummy);
1950 Double_t AliGenMUONlib::PtUpsilonPbP8800c1(const Double_t *px, const Double_t *dummy)
1953 // Pbp 8.8 TeV, 1st centrality bin 0-20 %
1955 return PtUpsilonPbP8800ShFdummy(*px, 1) * PtUpsilonPP8800(px, dummy);
1958 Double_t AliGenMUONlib::PtUpsilonPbP8800c2(const Double_t *px, const Double_t *dummy)
1961 // Pbp 8.8 TeV, 2nd centrality bin 20-40 %
1963 return PtUpsilonPbP8800ShFdummy(*px, 2) * PtUpsilonPP8800(px, dummy);
1966 Double_t AliGenMUONlib::PtUpsilonPbP8800c3(const Double_t *px, const Double_t *dummy)
1969 // Pbp 8.8 TeV, 3rd centrality bin 40-60 %
1971 return PtUpsilonPbP8800ShFdummy(*px, 3) * PtUpsilonPP8800(px, dummy);
1974 Double_t AliGenMUONlib::PtUpsilonPbP8800c4(const Double_t *px, const Double_t *dummy)
1977 // Pbp 8.8 TeV, 4th centrality bin 60-100 %
1979 return PtUpsilonPbP8800ShFdummy(*px, 4) * PtUpsilonPP8800(px, dummy);
1982 Double_t AliGenMUONlib::PtUpsilon( const Double_t *px, const Double_t */*dummy*/ )
1985 const Double_t kpt0 = 5.3;
1986 const Double_t kxn = 2.5;
1989 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
1990 return x/TMath::Power(pass1,kxn);
1993 Double_t AliGenMUONlib::PtUpsilonCDFscaled( const Double_t *px, const Double_t */*dummy*/ )
1996 const Double_t kpt0 = 7.753;
1997 const Double_t kxn = 3.042;
2000 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2001 return x/TMath::Power(pass1,kxn);
2004 Double_t AliGenMUONlib::PtUpsilonCDFscaledPP( const Double_t *px, const Double_t */*dummy*/ )
2010 // scaled from CDF data at 2 TeV
2012 const Double_t kpt0 = 8.610;
2013 const Double_t kxn = 3.051;
2016 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2017 return x/TMath::Power(pass1,kxn);
2020 Double_t AliGenMUONlib::PtUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/)
2026 // scaled from CDF data at 2 TeV
2028 const Double_t kpt0 = 8.235;
2029 const Double_t kxn = 3.051;
2032 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2033 return x/TMath::Power(pass1,kxn);
2036 Double_t AliGenMUONlib::PtUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/)
2041 // scaled from CDF data at 2 TeV
2043 const Double_t kpt0 = 8.048;
2044 const Double_t kxn = 3.051;
2047 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2048 return x/TMath::Power(pass1,kxn);
2051 Double_t AliGenMUONlib::PtUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/)
2057 // scaled from CDF data at 2 TeV
2059 const Double_t kpt0 = 7.817;
2060 const Double_t kxn = 3.051;
2063 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2064 return x/TMath::Power(pass1,kxn);
2067 Double_t AliGenMUONlib::PtUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/)
2072 // scaled from CDF data at 2 TeV
2074 const Double_t kpt0 = 7.189;
2075 const Double_t kxn = 3.051;
2078 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2079 return x/TMath::Power(pass1,kxn);
2082 Double_t AliGenMUONlib::PtUpsilonCDFscaledPPb9( const Double_t *px, const Double_t *dummy)
2086 // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89
2088 Double_t c[5] = {7.64952e-01, 1.12501e-04, 4.96038e-04, -3.03198e-05, 3.74035e-06};
2093 while (j > 0) y = y * x + c[--j];
2095 Double_t d = 1.+c[4]*TMath::Power(x,4);
2096 return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy);
2099 Double_t AliGenMUONlib::PtUpsilonCDFscaledPbP9( const Double_t *px, const Double_t *dummy)
2103 // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89
2105 Double_t c[5] = {1.09881e+00, 3.08329e-03, -2.00356e-04, 8.28991e-06, 2.52576e-06};
2110 while (j > 0) y = y * x + c[--j];
2112 Double_t d = 1.+c[4]*TMath::Power(x,4);
2113 return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy);
2116 Double_t AliGenMUONlib::PtUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy)
2120 // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85
2122 Double_t c[5] = {8.65872e-01, 2.05465e-03, 2.56063e-04, -1.65598e-05, 2.29209e-06};
2127 while (j > 0) y = y * x + c[--j];
2129 Double_t d = 1.+c[4]*TMath::Power(x,4);
2130 return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP4(px,dummy);
2133 Double_t AliGenMUONlib::PtUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/ )
2138 Double_t AliGenMUONlib::PtUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/)
2147 // mc = 1.4 GeV, pt-kick 1 GeV
2151 -1.03488e+01, 1.28065e+01, -6.60500e+00, 1.66140e+00,
2152 -2.34293e-01, 1.86925e-02, -7.80708e-04, 1.30610e-05
2158 while (j > 0) y = y * x +c[--j];
2159 y = x * TMath::Exp(y);
2166 Double_t AliGenMUONlib::PtUpsilonPP( const Double_t *px, const Double_t */*dummy*/)
2175 // mc = 1.4 GeV, pt-kick 1 GeV
2178 Double_t c[8] = {-7.93955e+00, 1.06306e+01, -5.21392e+00, 1.19703e+00,
2179 -1.45718e-01, 8.95151e-03, -2.04806e-04, -1.13053e-06};
2185 while (j > 0) y = y * x +c[--j];
2186 y = x * TMath::Exp(y);
2196 //____________________________________________________________
2197 Double_t AliGenMUONlib::YUpsilonPPdummy(Double_t x, Double_t energy)
2201 // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394
2203 x = x/TMath::Log(energy/9.46);
2205 Double_t y = TMath::Exp(-x/0.4/0.4/2);
2210 Double_t AliGenMUONlib::YUpsilonPPpoly(Double_t x, Double_t energy)
2214 // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394
2216 x = x/TMath::Log(energy/9.46);
2218 Double_t y = 1 - 6.9*x*x;
2223 Double_t AliGenMUONlib::YUpsilonPP7000(const Double_t *px, const Double_t */*dummy*/)
2228 return YUpsilonPPdummy(*px, 7000);
2231 Double_t AliGenMUONlib::YUpsilonPP2760(const Double_t *px, const Double_t */*dummy*/)
2236 return YUpsilonPPdummy(*px, 2760);
2239 Double_t AliGenMUONlib::YUpsilonPP4400(const Double_t *px, const Double_t */*dummy*/)
2244 return YUpsilonPPdummy(*px, 4400);
2247 Double_t AliGenMUONlib::YUpsilonPP5030(const Double_t *px, const Double_t */*dummy*/)
2252 return YUpsilonPPdummy(*px, 5030);
2255 Double_t AliGenMUONlib::YUpsilonPP8800(const Double_t *px, const Double_t */*dummy*/)
2260 return YUpsilonPPdummy(*px, 8800);
2263 Double_t AliGenMUONlib::YUpsilonPPpoly7000(const Double_t *px, const Double_t */*dummy*/)
2268 return YUpsilonPPpoly(*px, 7000);
2271 Double_t AliGenMUONlib::YUpsilonPPpoly2760(const Double_t *px, const Double_t */*dummy*/)
2276 return YUpsilonPPpoly(*px, 2760);
2279 Double_t AliGenMUONlib::YUpsilonPbPb2760ShFdummy(Double_t x, Int_t n)
2281 // Upsilon shadowing factor vs y for PbPb min. bias and 11 centr. bins
2283 // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.87 in 4pi
2285 const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558,
2286 0.428, 0.317, 0.231, 0.156};
2287 const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224,
2288 0.106, 0.041, 0.013, 0.002};
2289 const Double_t c1[5] = {1.8547e+00, 1.6717e-02,-2.1285e-04,-9.7662e-05, 2.5768e-06};
2290 const Double_t c2[5] = {8.6029e-01, 1.1742e-02,-2.7944e-04,-6.7973e-05, 1.8838e-06};
2295 y1 = c1[j = 4]; y2 = c2[4];
2296 while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];}
2298 y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n];
2303 Double_t AliGenMUONlib::YUpsilonPbPb2760(const Double_t *px, const Double_t *dummy)
2306 // PbPb 2.76 TeV, minimum bias 0-100 %
2308 return YUpsilonPbPb2760ShFdummy(*px, 0) * YUpsilonPP2760(px, dummy);
2311 Double_t AliGenMUONlib::YUpsilonPbPb2760c1(const Double_t *px, const Double_t *dummy)
2314 // PbPb 2.76 TeV, 1st centrality bin 0-5 %
2316 return YUpsilonPbPb2760ShFdummy(*px, 1) * YUpsilonPP2760(px, dummy);
2319 Double_t AliGenMUONlib::YUpsilonPbPb2760c2(const Double_t *px, const Double_t *dummy)
2322 // PbPb 2.76 TeV, 2nd centrality bin 5-10 %
2324 return YUpsilonPbPb2760ShFdummy(*px, 2) * YUpsilonPP2760(px, dummy);
2327 Double_t AliGenMUONlib::YUpsilonPbPb2760c3(const Double_t *px, const Double_t *dummy)
2330 // PbPb 2.76 TeV, 3rd centrality bin 10-20 %
2332 return YUpsilonPbPb2760ShFdummy(*px, 3) * YUpsilonPP2760(px, dummy);
2335 Double_t AliGenMUONlib::YUpsilonPbPb2760c4(const Double_t *px, const Double_t *dummy)
2338 // PbPb 2.76 TeV, 4th centrality bin 20-30 %
2340 return YUpsilonPbPb2760ShFdummy(*px, 4) * YUpsilonPP2760(px, dummy);
2343 Double_t AliGenMUONlib::YUpsilonPbPb2760c5(const Double_t *px, const Double_t *dummy)
2346 // PbPb 2.76 TeV, 5th centrality bin 30-40 %
2348 return YUpsilonPbPb2760ShFdummy(*px, 5) * YUpsilonPP2760(px, dummy);
2351 Double_t AliGenMUONlib::YUpsilonPbPb2760c6(const Double_t *px, const Double_t *dummy)
2354 // PbPb 2.76 TeV, 6th centrality bin 40-50 %
2356 return YUpsilonPbPb2760ShFdummy(*px, 6) * YUpsilonPP2760(px, dummy);
2359 Double_t AliGenMUONlib::YUpsilonPbPb2760c7(const Double_t *px, const Double_t *dummy)
2362 // PbPb 2.76 TeV, 7th centrality bin 50-60 %
2364 return YUpsilonPbPb2760ShFdummy(*px, 7) * YUpsilonPP2760(px, dummy);
2367 Double_t AliGenMUONlib::YUpsilonPbPb2760c8(const Double_t *px, const Double_t *dummy)
2370 // PbPb 2.76 TeV, 8th centrality bin 60-70 %
2372 return YUpsilonPbPb2760ShFdummy(*px, 8) * YUpsilonPP2760(px, dummy);
2375 Double_t AliGenMUONlib::YUpsilonPbPb2760c9(const Double_t *px, const Double_t *dummy)
2378 // PbPb 2.76 TeV, 9th centrality bin 70-80 %
2380 return YUpsilonPbPb2760ShFdummy(*px, 9) * YUpsilonPP2760(px, dummy);
2383 Double_t AliGenMUONlib::YUpsilonPbPb2760c10(const Double_t *px, const Double_t *dummy)
2386 // PbPb 2.76 TeV, 10th centrality bin 80-90 %
2388 return YUpsilonPbPb2760ShFdummy(*px, 10) * YUpsilonPP2760(px, dummy);
2391 Double_t AliGenMUONlib::YUpsilonPbPb2760c11(const Double_t *px, const Double_t *dummy)
2394 // PbPb 2.76 TeV, 11th centrality bin 90-100 %
2396 return YUpsilonPbPb2760ShFdummy(*px, 11) * YUpsilonPP2760(px, dummy);
2399 Double_t AliGenMUONlib::YUpsilonPP5030dummy(Double_t px)
2401 return AliGenMUONlib::YUpsilonPP5030(&px, (Double_t*) 0);
2404 Double_t AliGenMUONlib::YUpsilonPPb5030ShFdummy(Double_t x, Int_t n)
2406 // Upsilon shadowing factor vs y for pPb min. bias and 4 centr. bins
2408 // pPb 5.03 TeV, for EPS09-LO, minimum bias shadowing factor = 0.92 in 4pi
2410 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
2411 const Double_t c[7] = {8.885e-01, 4.620e-02, 1.158e-02, 4.959e-04,-4.422e-04,-5.345e-05, 0.};
2415 while (j > 0) y = y * x + c[--j];
2418 return 1 +(y-1)*f[n];
2421 Double_t AliGenMUONlib::YUpsilonPPb5030(const Double_t *px, const Double_t */*dummy*/)
2424 // pPb 5.03 TeV, minimum bias 0-100 %
2426 Double_t x = px[0] + 0.47; // rapidity shift
2427 return YUpsilonPPb5030ShFdummy(x, 0) * YUpsilonPP5030dummy(x);
2430 Double_t AliGenMUONlib::YUpsilonPPb5030c1(const Double_t *px, const Double_t */*dummy*/)
2433 // pPb 5.03 TeV, 1st centrality bin 0-20 %
2435 Double_t x = px[0] + 0.47; // rapidity shift
2436 return YUpsilonPPb5030ShFdummy(x, 1) * YUpsilonPP5030dummy(x);
2439 Double_t AliGenMUONlib::YUpsilonPPb5030c2(const Double_t *px, const Double_t */*dummy*/)
2442 // pPb 5.03 TeV, 2nd centrality bin 20-40 %
2444 Double_t x = px[0] + 0.47; // rapidity shift
2445 return YUpsilonPPb5030ShFdummy(x, 2) * YUpsilonPP5030dummy(x);
2448 Double_t AliGenMUONlib::YUpsilonPPb5030c3(const Double_t *px, const Double_t */*dummy*/)
2451 // pPb 5.03 TeV, 3rd centrality bin 40-60 %
2453 Double_t x = px[0] + 0.47; // rapidity shift
2454 return YUpsilonPPb5030ShFdummy(x, 3) * YUpsilonPP5030dummy(x);
2457 Double_t AliGenMUONlib::YUpsilonPPb5030c4(const Double_t *px, const Double_t */*dummy*/)
2460 // pPb 5.03 TeV, 4th centrality bin 60-100 %
2462 Double_t x = px[0] + 0.47; // rapidity shift
2463 return YUpsilonPPb5030ShFdummy(x, 4) * YUpsilonPP5030dummy(x);
2466 Double_t AliGenMUONlib::YUpsilonPbP5030(const Double_t *px, const Double_t */*dummy*/)
2469 // Pbp 5.03 TeV, minimum bias 0-100 %
2471 Double_t x = -px[0] + 0.47; // rapidity shift
2472 return YUpsilonPPb5030ShFdummy(x, 0) * YUpsilonPP5030dummy(x);
2475 Double_t AliGenMUONlib::YUpsilonPbP5030c1(const Double_t *px, const Double_t */*dummy*/)
2478 // Pbp 5.03 TeV, 1st centrality bin 0-20 %
2480 Double_t x = -px[0] + 0.47; // rapidity shift
2481 return YUpsilonPPb5030ShFdummy(x, 1) * YUpsilonPP5030dummy(x);
2484 Double_t AliGenMUONlib::YUpsilonPbP5030c2(const Double_t *px, const Double_t */*dummy*/)
2487 // Pbp 5.03 TeV, 2nd centrality bin 20-40 %
2489 Double_t x = -px[0] + 0.47; // rapidity shift
2490 return YUpsilonPPb5030ShFdummy(x, 2) * YUpsilonPP5030dummy(x);
2493 Double_t AliGenMUONlib::YUpsilonPbP5030c3(const Double_t *px, const Double_t */*dummy*/)
2496 // Pbp 5.03 TeV, 3rd centrality bin 40-60 %
2498 Double_t x = -px[0] + 0.47; // rapidity shift
2499 return YUpsilonPPb5030ShFdummy(x, 3) * YUpsilonPP5030dummy(x);
2502 Double_t AliGenMUONlib::YUpsilonPbP5030c4(const Double_t *px, const Double_t */*dummy*/)
2505 // Pbp 5.03 TeV, 4th centrality bin 60-100 %
2507 Double_t x = -px[0] + 0.47; // rapidity shift
2508 return YUpsilonPPb5030ShFdummy(x, 4) * YUpsilonPP5030dummy(x);
2511 Double_t AliGenMUONlib::YUpsilonPP8800dummy(Double_t px)
2513 return AliGenMUONlib::YUpsilonPP8800(&px, (Double_t*) 0);
2516 Double_t AliGenMUONlib::YUpsilonPPb8800ShFdummy(Double_t x, Int_t n)
2518 // Upsilon shadowing factor vs y for pPb min. bias and 4 centr. bins
2520 // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi
2522 const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23};
2523 const Double_t c[7] = {8.6581e-01, 4.6111e-02, 7.6911e-03, 8.7313e-04,
2524 -1.4700e-04,-5.0975e-05,-3.5718e-06};
2528 while (j > 0) y = y * x + c[--j];
2531 return 1 +(y-1)*f[n];
2534 Double_t AliGenMUONlib::YUpsilonPPb8800(const Double_t *px, const Double_t */*dummy*/)
2537 // pPb 8.8 TeV, minimum bias 0-100 %
2539 Double_t x = px[0] + 0.47; // rapidity shift
2540 return YUpsilonPPb8800ShFdummy(x, 0) * YUpsilonPP8800dummy(x);
2543 Double_t AliGenMUONlib::YUpsilonPPb8800c1(const Double_t *px, const Double_t */*dummy*/)
2546 // pPb 8.8 TeV, 1st centrality bin 0-20 %
2548 Double_t x = px[0] + 0.47; // rapidity shift
2549 return YUpsilonPPb8800ShFdummy(x, 1) * YUpsilonPP8800dummy(x);
2552 Double_t AliGenMUONlib::YUpsilonPPb8800c2(const Double_t *px, const Double_t */*dummy*/)
2555 // pPb 8.8 TeV, 2nd centrality bin 20-40 %
2557 Double_t x = px[0] + 0.47; // rapidity shift
2558 return YUpsilonPPb8800ShFdummy(x, 2) * YUpsilonPP8800dummy(x);
2561 Double_t AliGenMUONlib::YUpsilonPPb8800c3(const Double_t *px, const Double_t */*dummy*/)
2564 // pPb 8.8 TeV, 3rd centrality bin 40-60 %
2566 Double_t x = px[0] + 0.47; // rapidity shift
2567 return YUpsilonPPb8800ShFdummy(x, 3) * YUpsilonPP8800dummy(x);
2570 Double_t AliGenMUONlib::YUpsilonPPb8800c4(const Double_t *px, const Double_t */*dummy*/)
2573 // pPb 8.8 TeV, 4th centrality bin 60-100 %
2575 Double_t x = px[0] + 0.47; // rapidity shift
2576 return YUpsilonPPb8800ShFdummy(x, 4) * YUpsilonPP8800dummy(x);
2579 Double_t AliGenMUONlib::YUpsilonPbP8800(const Double_t *px, const Double_t */*dummy*/)
2582 // Pbp 8.8 TeV, minimum bias 0-100 %
2584 Double_t x = -px[0] + 0.47; // rapidity shift
2585 return YUpsilonPPb8800ShFdummy(x, 0) * YUpsilonPP8800dummy(x);
2588 Double_t AliGenMUONlib::YUpsilonPbP8800c1(const Double_t *px, const Double_t */*dummy*/)
2591 // Pbp 8.8 TeV, 1st centrality bin 0-20 %
2593 Double_t x = -px[0] + 0.47; // rapidity shift
2594 return YUpsilonPPb8800ShFdummy(x, 1) * YUpsilonPP8800dummy(x);
2597 Double_t AliGenMUONlib::YUpsilonPbP8800c2(const Double_t *px, const Double_t */*dummy*/)
2600 // Pbp 8.8 TeV, 2nd centrality bin 20-40 %
2602 Double_t x = -px[0] + 0.47; // rapidity shift
2603 return YUpsilonPPb8800ShFdummy(x, 2) * YUpsilonPP8800dummy(x);
2606 Double_t AliGenMUONlib::YUpsilonPbP8800c3(const Double_t *px, const Double_t */*dummy*/)
2609 // Pbp 8.8 TeV, 3rd centrality bin 40-60 %
2611 Double_t x = -px[0] + 0.47; // rapidity shift
2612 return YUpsilonPPb8800ShFdummy(x, 3) * YUpsilonPP8800dummy(x);
2615 Double_t AliGenMUONlib::YUpsilonPbP8800c4(const Double_t *px, const Double_t */*dummy*/)
2618 // Pbp 8.8 TeV, 4th centrality bin 60-100 %
2620 Double_t x = -px[0] + 0.47; // rapidity shift
2621 return YUpsilonPPb8800ShFdummy(x, 4) * YUpsilonPP8800dummy(x);
2624 Double_t AliGenMUONlib::YUpsilon(const Double_t *py, const Double_t */*dummy*/)
2627 const Double_t ky0 = 3.;
2628 const Double_t kb=1.;
2630 Double_t y=TMath::Abs(*py);
2635 yu=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
2640 Double_t AliGenMUONlib::YUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/)
2650 // mc = 1.4 GeV, pt-kick 1 GeV
2653 Double_t c[7] = {3.40036e-01, -3.98882e-07, -4.48398e-03, 8.46411e-08, -6.10854e-04,
2654 -2.99753e-09, 1.28895e-05};
2655 Double_t x = TMath::Abs(px[0]);
2656 if (x > 5.55) return 0.;
2658 Double_t y = c[j = 6];
2659 while (j > 0) y = y * x +c[--j];
2663 Double_t AliGenMUONlib::YUpsilonCDFscaled( const Double_t *px, const Double_t *dummy)
2666 return AliGenMUONlib::YUpsilonPbPb(px, dummy);
2670 Double_t AliGenMUONlib::YUpsilonCDFscaledPP( const Double_t *px, const Double_t *dummy)
2673 return AliGenMUONlib::YUpsilonPP(px, dummy);
2677 Double_t AliGenMUONlib::YUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/)
2684 Double_t AliGenMUONlib::YUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/)
2689 // scaled from YUpsilonPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD.
2690 // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008
2692 Double_t c[4] = {1., -2.17877e-02, -6.52830e-04, 1.40578e-05};
2693 Double_t x = TMath::Abs(px[0]);
2694 if (x > 6.1) return 0.;
2696 Double_t y = c[j = 3];
2697 while (j > 0) y = y * x*x +c[--j];
2701 Double_t AliGenMUONlib::YUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/)
2706 // rescaling of YUpsilonPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD
2708 Double_t c[4] = {1., -2.37621e-02, -6.29610e-04, 1.47976e-05};
2709 Double_t x = TMath::Abs(px[0]);
2710 if (x > 6.1) return 0.;
2712 Double_t y = c[j = 3];
2713 while (j > 0) y = y * x*x +c[--j];
2717 Double_t AliGenMUONlib::YUpsilonCDFscaledPP9dummy(Double_t px)
2719 return AliGenMUONlib::YUpsilonCDFscaledPP9(&px, (Double_t*) 0);
2722 Double_t AliGenMUONlib::YUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/)
2727 // scaled from YUpsilonPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD.
2729 Double_t c[4] = {1., -2.61009e-02, -6.83937e-04, 1.78451e-05};
2730 Double_t x = TMath::Abs(px[0]);
2731 if (x > 6.0) return 0.;
2733 Double_t y = c[j = 3];
2734 while (j > 0) y = y * x*x +c[--j];
2738 Double_t AliGenMUONlib::YUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/)
2743 // rescaling of YUpsilonPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD
2745 Double_t c[4] = {1., -3.91924e-02, -4.26184e-04, 2.10914e-05};
2746 Double_t x = TMath::Abs(px[0]);
2747 if (x > 5.7) return 0.;
2749 Double_t y = c[j = 3];
2750 while (j > 0) y = y * x*x +c[--j];
2755 Double_t AliGenMUONlib::YUpsilonPP( const Double_t *px, const Double_t */*dummy*/)
2765 // mc = 1.4 GeV, pt-kick 1 GeV
2767 Double_t c[7] = {8.91936e-01, -6.46645e-07, -1.52774e-02, 4.28677e-08, -7.01517e-04,
2768 -6.20539e-10, 1.29943e-05};
2769 Double_t x = TMath::Abs(px[0]);
2770 if (x > 6.2) return 0.;
2772 Double_t y = c[j = 6];
2773 while (j > 0) y = y * x +c[--j];
2777 Double_t AliGenMUONlib::YUpsilonCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/)
2781 // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89
2783 Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04,
2784 -4.67538e-05,-2.11683e-06};
2786 Double_t x = px[0] + 0.47; // rapidity shift
2789 while (j > 0) y = y * x + c[--j];
2792 return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x);
2795 Double_t AliGenMUONlib::YUpsilonCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/)
2799 // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89
2801 Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04,
2802 -4.67538e-05,-2.11683e-06};
2804 Double_t x = -px[0] + 0.47; // rapidity shift
2807 while (j > 0) y = y * x + c[--j];
2810 return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x);
2813 Double_t AliGenMUONlib::YUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy)
2817 // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85
2819 Double_t c[4] = {8.27837e-01, 1.70115e-02, -1.26046e-03, 1.52091e-05};
2820 Double_t x = px[0]*px[0];
2824 while (j > 0) y = y * x + c[--j];
2827 return y * AliGenMUONlib::YUpsilonCDFscaledPP4(px,dummy);
2831 // particle composition
2833 Int_t AliGenMUONlib::IpUpsilon(TRandom *)
2838 Int_t AliGenMUONlib::IpUpsilonP(TRandom *)
2843 Int_t AliGenMUONlib::IpUpsilonPP(TRandom *)
2848 Int_t AliGenMUONlib::IpUpsilonFamily(TRandom *)
2851 // Using the LHCb pp data at 7 TeV: CERN-PH-EP-2012-051
2852 // (L. Manceau, S. Grigoryan)
2854 Float_t r = gRandom->Rndm();
2858 } else if (r < 0.903) {
2859 // } else if (r < 0.896) {
2872 // pt-distribution (by scaling of pion distribution)
2873 //____________________________________________________________
2874 Double_t AliGenMUONlib::PtPhi( const Double_t *px, const Double_t */*dummy*/)
2877 return PtScal(*px,7);
2880 Double_t AliGenMUONlib::YPhi( const Double_t *px, const Double_t */*dummy*/)
2884 return YJpsi(px,dum);
2886 // particle composition
2888 Int_t AliGenMUONlib::IpPhi(TRandom *)
2898 // pt-distribution (by scaling of pion distribution)
2899 //____________________________________________________________
2900 Double_t AliGenMUONlib::PtOmega( const Double_t *px, const Double_t */*dummy*/)
2903 return PtScal(*px,5);
2906 Double_t AliGenMUONlib::YOmega( const Double_t *px, const Double_t */*dummy*/)
2910 return YJpsi(px,dum);
2912 // particle composition
2914 Int_t AliGenMUONlib::IpOmega(TRandom *)
2916 // Omega composition
2925 // pt-distribution (by scaling of pion distribution)
2926 //____________________________________________________________
2927 Double_t AliGenMUONlib::PtEta( const Double_t *px, const Double_t */*dummy*/)
2930 return PtScal(*px,3);
2933 Double_t AliGenMUONlib::YEta( const Double_t *px, const Double_t */*dummy*/)
2937 return YJpsi(px,dum);
2939 // particle composition
2941 Int_t AliGenMUONlib::IpEta(TRandom *)
2952 //____________________________________________________________
2953 Double_t AliGenMUONlib::PtCharm( const Double_t *px, const Double_t */*dummy*/)
2956 const Double_t kpt0 = 2.25;
2957 const Double_t kxn = 3.17;
2960 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2961 return x/TMath::Power(pass1,kxn);
2964 Double_t AliGenMUONlib::PtCharmCentral( const Double_t *px, const Double_t */*dummy*/)
2967 const Double_t kpt0 = 2.12;
2968 const Double_t kxn = 2.78;
2971 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
2972 return x/TMath::Power(pass1,kxn);
2974 Double_t AliGenMUONlib::PtCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/)
2976 // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows:
2977 // PtCharmFiMjSkPP = PtCharmF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR
2978 // i=0,1,2; j=0,1,2; k=0,1,...,6
2979 // dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88;
2980 // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR)
2981 // calculations for the following inputs:
2982 // Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11
2983 // for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV
2984 // for j=0,1 & 2 respectively;
2985 // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S)
2986 // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2
2987 // for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set
2988 // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89).
2989 // June 2008, Smbat.Grigoryan@cern.ch
2992 // Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c)
2993 // for pp collisions at 14 TeV with one c-cbar pair per event.
2994 // Corresponding NLO total cross section is 5.68 mb
2997 const Double_t kpt0 = 2.2930;
2998 const Double_t kxn = 3.1196;
2999 Double_t c[3]={-5.2180e-01,1.8753e-01,2.8669e-02};
3002 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3003 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3005 Double_t AliGenMUONlib::PtCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3008 // Corresponding NLO total cross section is 6.06 mb
3009 const Double_t kpt0 = 2.8669;
3010 const Double_t kxn = 3.1044;
3011 Double_t c[3]={-4.6714e-01,1.5005e-01,4.5003e-02};
3014 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3015 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3017 Double_t AliGenMUONlib::PtCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3020 // Corresponding NLO total cross section is 6.06 mb
3021 const Double_t kpt0 = 1.8361;
3022 const Double_t kxn = 3.2966;
3023 Double_t c[3]={-6.1550e-01,2.6498e-01,1.0728e-02};
3026 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3027 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3029 Double_t AliGenMUONlib::PtCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/)
3032 // Corresponding NLO total cross section is 7.69 mb
3033 const Double_t kpt0 = 2.1280;
3034 const Double_t kxn = 3.1397;
3035 Double_t c[3]={-5.4021e-01,2.0944e-01,2.5211e-02};
3038 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3039 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3041 Double_t AliGenMUONlib::PtCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/)
3044 // Corresponding NLO total cross section is 4.81 mb
3045 const Double_t kpt0 = 2.4579;
3046 const Double_t kxn = 3.1095;
3047 Double_t c[3]={-5.1497e-01,1.7532e-01,3.2429e-02};
3050 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3051 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3053 Double_t AliGenMUONlib::PtCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/)
3056 // Corresponding NLO total cross section is 14.09 mb
3057 const Double_t kpt0 = 2.1272;
3058 const Double_t kxn = 3.1904;
3059 Double_t c[3]={-4.6088e-01,2.1918e-01,2.3055e-02};
3062 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3063 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3065 Double_t AliGenMUONlib::PtCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/)
3068 // Corresponding NLO total cross section is 1.52 mb
3069 const Double_t kpt0 = 2.8159;
3070 const Double_t kxn = 3.0857;
3071 Double_t c[3]={-6.4691e-01,2.0289e-01,2.4922e-02};
3074 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3075 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3077 Double_t AliGenMUONlib::PtCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/)
3080 // Corresponding NLO total cross section is 3.67 mb
3081 const Double_t kpt0 = 2.7297;
3082 const Double_t kxn = 3.3019;
3083 Double_t c[3]={-6.2216e-01,1.9031e-01,1.5341e-02};
3086 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3087 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3089 Double_t AliGenMUONlib::PtCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/)
3092 // Corresponding NLO total cross section is 3.38 mb
3093 const Double_t kpt0 = 2.3894;
3094 const Double_t kxn = 3.1075;
3095 Double_t c[3]={-4.9742e-01,1.7032e-01,2.5994e-02};
3098 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3099 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3101 Double_t AliGenMUONlib::PtCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/)
3104 // Corresponding NLO total cross section is 10.37 mb
3105 const Double_t kpt0 = 2.0187;
3106 const Double_t kxn = 3.3011;
3107 Double_t c[3]={-3.9869e-01,2.9248e-01,1.1763e-02};
3110 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3111 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3113 Double_t AliGenMUONlib::PtCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/)
3116 // Corresponding NLO total cross section is 7.22 mb
3117 const Double_t kpt0 = 2.1089;
3118 const Double_t kxn = 3.1848;
3119 Double_t c[3]={-4.6275e-01,1.8114e-01,2.1363e-02};
3122 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3123 return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
3127 Double_t AliGenMUONlib::YCharm( const Double_t *px, const Double_t */*dummy*/)
3129 // Charm y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225)
3130 // Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD)
3131 // shadowing + kt broadening
3134 Double_t c[2]={-2.42985e-03,-2.31001e-04};
3135 Double_t y=1+(c[0]*TMath::Power(x,2))+(c[1]*TMath::Power(x,4));
3138 if (TMath::Abs(x)>8) {
3142 ycharm=TMath::Power(y,3);
3147 Double_t AliGenMUONlib::YCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3149 // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows:
3150 // YCharmFiMjSkPP = YCharmF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR
3151 // i=0,1,2; j=0,1,2; k=0,1,...,6
3152 // dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88;
3153 // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR)
3154 // calculations for the following inputs:
3155 // Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11
3156 // for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV
3157 // for j=0,1 & 2 respectively;
3158 // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S)
3159 // with a/b = 1/1,1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for
3160 // k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set
3161 // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89).
3162 // June 2008, Smbat.Grigoryan@cern.ch
3165 // Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c)
3166 // for pp collisions at 14 TeV with one c-cbar pair per event.
3167 // Corresponding NLO total cross section is 5.68 mb
3170 Double_t c[2]={7.0909e-03,6.1967e-05};
3171 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3174 if (TMath::Abs(x)>9) {
3178 ycharm=TMath::Power(y,3);
3183 Double_t AliGenMUONlib::YCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3186 // Corresponding NLO total cross section is 6.06 mb
3188 Double_t c[2]={6.9707e-03,6.0971e-05};
3189 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3192 if (TMath::Abs(x)>9) {
3196 ycharm=TMath::Power(y,3);
3201 Double_t AliGenMUONlib::YCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3204 // Corresponding NLO total cross section is 6.06 mb
3206 Double_t c[2]={7.1687e-03,6.5303e-05};
3207 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3210 if (TMath::Abs(x)>9) {
3214 ycharm=TMath::Power(y,3);
3219 Double_t AliGenMUONlib::YCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/)
3222 // Corresponding NLO total cross section is 7.69 mb
3224 Double_t c[2]={5.9090e-03,7.1854e-05};
3225 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3228 if (TMath::Abs(x)>9) {
3232 ycharm=TMath::Power(y,3);
3237 Double_t AliGenMUONlib::YCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/)
3240 // Corresponding NLO total cross section is 4.81 mb
3242 Double_t c[2]={8.0882e-03,5.5872e-05};
3243 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3246 if (TMath::Abs(x)>9) {
3250 ycharm=TMath::Power(y,3);
3255 Double_t AliGenMUONlib::YCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/)
3258 // Corresponding NLO total cross section is 14.09 mb
3260 Double_t c[2]={7.2520e-03,6.2691e-05};
3261 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3264 if (TMath::Abs(x)>9) {
3268 ycharm=TMath::Power(y,3);
3273 Double_t AliGenMUONlib::YCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/)
3276 // Corresponding NLO total cross section is 1.52 mb
3278 Double_t c[2]={1.1040e-04,1.4498e-04};
3279 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3282 if (TMath::Abs(x)>9) {
3286 ycharm=TMath::Power(y,3);
3291 Double_t AliGenMUONlib::YCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/)
3294 // Corresponding NLO total cross section is 3.67 mb
3296 Double_t c[2]={-3.1328e-03,1.8270e-04};
3297 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3300 if (TMath::Abs(x)>9) {
3304 ycharm=TMath::Power(y,3);
3309 Double_t AliGenMUONlib::YCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/)
3312 // Corresponding NLO total cross section is 3.38 mb
3314 Double_t c[2]={7.0865e-03,6.2532e-05};
3315 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3318 if (TMath::Abs(x)>9) {
3322 ycharm=TMath::Power(y,3);
3327 Double_t AliGenMUONlib::YCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/)
3330 // Corresponding NLO total cross section is 10.37 mb
3332 Double_t c[2]={7.7070e-03,5.3533e-05};
3333 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3336 if (TMath::Abs(x)>9) {
3340 ycharm=TMath::Power(y,3);
3345 Double_t AliGenMUONlib::YCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/)
3348 // Corresponding NLO total cross section is 7.22 mb
3350 Double_t c[2]={7.9195e-03,5.3823e-05};
3351 Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4));
3354 if (TMath::Abs(x)>9) {
3358 ycharm=TMath::Power(y,3);
3365 Int_t AliGenMUONlib::IpCharm(TRandom *ran)
3367 // Charm composition
3371 random = ran->Rndm();
3372 // Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3
3373 // >>>>> cf. tab 4 p 11
3375 if (random < 0.30) {
3377 } else if (random < 0.60) {
3379 } else if (random < 0.70) {
3381 } else if (random < 0.80) {
3383 } else if (random < 0.86) {
3385 } else if (random < 0.92) {
3387 } else if (random < 0.96) {
3401 //____________________________________________________________
3402 Double_t AliGenMUONlib::PtBeauty( const Double_t *px, const Double_t */*dummy*/)
3405 const Double_t kpt0 = 6.53;
3406 const Double_t kxn = 3.59;
3409 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3410 return x/TMath::Power(pass1,kxn);
3413 Double_t AliGenMUONlib::PtBeautyCentral( const Double_t *px, const Double_t */*dummy*/)
3416 const Double_t kpt0 = 6.14;
3417 const Double_t kxn = 2.93;
3420 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3421 return x/TMath::Power(pass1,kxn);
3423 Double_t AliGenMUONlib::PtBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3425 // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows:
3426 // PtBeautyFiMjSkPP = PtBeautyF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR
3427 // i=0,1,2; j=0,1,2; k=0,1,...,6
3428 // dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88;
3429 // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR)
3430 // calculations for the following inputs:
3431 // Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004
3432 // for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV
3433 // for j=0,1 & 2 respectively;
3434 // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S)
3435 // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for
3436 // k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set
3437 // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89).
3438 // June 2008, Smbat.Grigoryan@cern.ch
3441 // Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c)
3442 // for pp collisions at 14 TeV with one b-bbar pair per event.
3443 // Corresponding NLO total cross section is 0.494 mb
3445 const Double_t kpt0 = 8.0575;
3446 const Double_t kxn = 3.1921;
3449 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3450 return x/TMath::Power(pass1,kxn);
3452 Double_t AliGenMUONlib::PtBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3455 // Corresponding NLO total cross section is 0.445 mb
3456 const Double_t kpt0 = 8.6239;
3457 const Double_t kxn = 3.2911;
3460 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3461 return x/TMath::Power(pass1,kxn);
3463 Double_t AliGenMUONlib::PtBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3466 // Corresponding NLO total cross section is 0.445 mb
3467 const Double_t kpt0 = 7.3367;
3468 const Double_t kxn = 3.0692;
3471 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3472 return x/TMath::Power(pass1,kxn);
3474 Double_t AliGenMUONlib::PtBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/)
3477 // Corresponding NLO total cross section is 0.518 mb
3478 const Double_t kpt0 = 7.6409;
3479 const Double_t kxn = 3.1364;
3482 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3483 return x/TMath::Power(pass1,kxn);
3485 Double_t AliGenMUONlib::PtBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/)
3488 // Corresponding NLO total cross section is 0.384 mb
3489 const Double_t kpt0 = 8.4948;
3490 const Double_t kxn = 3.2546;
3493 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3494 return x/TMath::Power(pass1,kxn);
3496 Double_t AliGenMUONlib::PtBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/)
3499 // Corresponding NLO total cross section is 0.648 mb
3500 const Double_t kpt0 = 7.6631;
3501 const Double_t kxn = 3.1621;
3504 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3505 return x/TMath::Power(pass1,kxn);
3507 Double_t AliGenMUONlib::PtBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/)
3510 // Corresponding NLO total cross section is 0.294 mb
3511 const Double_t kpt0 = 8.7245;
3512 const Double_t kxn = 3.2213;
3515 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3516 return x/TMath::Power(pass1,kxn);
3518 Double_t AliGenMUONlib::PtBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/)
3521 // Corresponding NLO total cross section is 0.475 mb
3522 const Double_t kpt0 = 8.5296;
3523 const Double_t kxn = 3.2187;
3526 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3527 return x/TMath::Power(pass1,kxn);
3529 Double_t AliGenMUONlib::PtBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/)
3532 // Corresponding NLO total cross section is 0.324 mb
3533 const Double_t kpt0 = 7.9440;
3534 const Double_t kxn = 3.1614;
3537 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3538 return x/TMath::Power(pass1,kxn);
3540 Double_t AliGenMUONlib::PtBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/)
3543 // Corresponding NLO total cross section is 0.536 mb
3544 const Double_t kpt0 = 8.2408;
3545 const Double_t kxn = 3.3029;
3548 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3549 return x/TMath::Power(pass1,kxn);
3551 Double_t AliGenMUONlib::PtBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/)
3554 // Corresponding NLO total cross section is 0.420 mb
3555 const Double_t kpt0 = 7.8041;
3556 const Double_t kxn = 3.2094;
3559 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
3560 return x/TMath::Power(pass1,kxn);
3564 Double_t AliGenMUONlib::YBeauty( const Double_t *px, const Double_t */*dummy*/)
3566 // Beauty y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225)
3567 // Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD)
3568 // shadowing + kt broadening
3571 Double_t c[2]={-1.27590e-02,-2.42731e-04};
3572 Double_t y=1+c[0]*TMath::Power(x,2)+c[1]*TMath::Power(x,4);
3575 if (TMath::Abs(x)>6) {
3579 ybeauty=TMath::Power(y,3);
3584 Double_t AliGenMUONlib::YBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3586 // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows:
3587 // YBeautyFiMjSkPP = YBeautyF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR
3588 // i=0,1,2; j=0,1,2; k=0,1,...,6
3589 // dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88;
3590 // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR)
3591 // calculations for the following inputs:
3592 // Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004
3593 // for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV
3594 // for j=0,1 & 2 respectively;
3595 // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S)
3596 // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2
3597 // for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set
3598 // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89).
3599 // June 2008, Smbat.Grigoryan@cern.ch
3602 // Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c)
3603 // for pp collisions at 14 TeV with one b-bbar pair per event.
3604 // Corresponding NLO total cross section is 0.494 mb
3608 Double_t c[2]={1.2350e-02,9.2667e-05};
3609 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3612 if (TMath::Abs(x)>7.6) {
3616 ybeauty=TMath::Power(y,3);
3621 Double_t AliGenMUONlib::YBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3624 // Corresponding NLO total cross section is 0.445 mb
3626 Double_t c[2]={1.2292e-02,9.1847e-05};
3627 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3630 if (TMath::Abs(x)>7.6) {
3634 ybeauty=TMath::Power(y,3);
3639 Double_t AliGenMUONlib::YBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/)
3642 // Corresponding NLO total cross section is 0.445 mb
3644 Double_t c[2]={1.2436e-02,9.3709e-05};
3645 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3648 if (TMath::Abs(x)>7.6) {
3652 ybeauty=TMath::Power(y,3);
3657 Double_t AliGenMUONlib::YBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/)
3660 // Corresponding NLO total cross section is 0.518 mb
3662 Double_t c[2]={1.1714e-02,1.0068e-04};
3663 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3666 if (TMath::Abs(x)>7.6) {
3670 ybeauty=TMath::Power(y,3);
3675 Double_t AliGenMUONlib::YBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/)
3678 // Corresponding NLO total cross section is 0.384 mb
3680 Double_t c[2]={1.2944e-02,8.5500e-05};
3681 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3684 if (TMath::Abs(x)>7.6) {
3688 ybeauty=TMath::Power(y,3);
3693 Double_t AliGenMUONlib::YBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/)
3696 // Corresponding NLO total cross section is 0.648 mb
3698 Double_t c[2]={1.2455e-02,9.2713e-05};
3699 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3702 if (TMath::Abs(x)>7.6) {
3706 ybeauty=TMath::Power(y,3);
3711 Double_t AliGenMUONlib::YBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/)
3714 // Corresponding NLO total cross section is 0.294 mb
3716 Double_t c[2]={1.0897e-02,1.1878e-04};
3717 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3720 if (TMath::Abs(x)>7.6) {
3724 ybeauty=TMath::Power(y,3);
3729 Double_t AliGenMUONlib::YBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/)
3732 // Corresponding NLO total cross section is 0.475 mb
3734 Double_t c[2]={1.0912e-02,1.1858e-04};
3735 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3738 if (TMath::Abs(x)>7.6) {
3742 ybeauty=TMath::Power(y,3);
3747 Double_t AliGenMUONlib::YBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/)
3750 // Corresponding NLO total cross section is 0.324 mb
3752 Double_t c[2]={1.2378e-02,9.2490e-05};
3753 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3756 if (TMath::Abs(x)>7.6) {
3760 ybeauty=TMath::Power(y,3);
3765 Double_t AliGenMUONlib::YBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/)
3768 // Corresponding NLO total cross section is 0.536 mb
3770 Double_t c[2]={1.2886e-02,8.2912e-05};
3771 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3774 if (TMath::Abs(x)>7.6) {
3778 ybeauty=TMath::Power(y,3);
3783 Double_t AliGenMUONlib::YBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/)
3786 // Corresponding NLO total cross section is 0.420 mb
3788 Double_t c[2]={1.3106e-02,8.0115e-05};
3789 Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4);
3792 if (TMath::Abs(x)>7.6) {
3796 ybeauty=TMath::Power(y,3);
3802 Int_t AliGenMUONlib::IpBeauty(TRandom *ran)
3804 // Beauty Composition
3807 random = ran->Rndm();
3809 // Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3
3810 // >>>>> cf. tab 4 p 11
3812 if (random < 0.20) {
3814 } else if (random < 0.40) {
3816 } else if (random < 0.605) {
3818 } else if (random < 0.81) {
3820 } else if (random < 0.87) {
3822 } else if (random < 0.93) {
3824 } else if (random < 0.965) {
3834 typedef Double_t (*GenFunc) (const Double_t*, const Double_t*);
3835 GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const
3837 // Return pointer to pT parameterisation
3838 TString sname = TString(tname);
3856 if (sname == "Vogt" || sname == "Vogt PbPb") {
3858 } else if (sname == "Vogt pp") {
3860 } else if (sname == "pp 7") {
3862 } else if (sname == "pp 2.76") {
3864 } else if (sname == "pp 4.4") {
3866 } else if (sname == "pp 5.03") {
3868 } else if (sname == "pp 8.8") {
3870 } else if (sname == "pp 7 poly") {
3872 } else if (sname == "pp 2.76 poly") {
3874 } else if (sname == "PbPb 2.76") {
3875 func=PtJpsiPbPb2760;
3876 } else if (sname == "PbPb 2.76c1") {
3877 func=PtJpsiPbPb2760c1;
3878 } else if (sname == "PbPb 2.76c2") {
3879 func=PtJpsiPbPb2760c2;
3880 } else if (sname == "PbPb 2.76c3") {
3881 func=PtJpsiPbPb2760c3;
3882 } else if (sname == "PbPb 2.76c4") {
3883 func=PtJpsiPbPb2760c4;
3884 } else if (sname == "PbPb 2.76c5") {
3885 func=PtJpsiPbPb2760c5;
3886 } else if (sname == "PbPb 2.76c6") {
3887 func=PtJpsiPbPb2760c6;
3888 } else if (sname == "PbPb 2.76c7") {
3889 func=PtJpsiPbPb2760c7;
3890 } else if (sname == "PbPb 2.76c8") {
3891 func=PtJpsiPbPb2760c8;
3892 } else if (sname == "PbPb 2.76c9") {
3893 func=PtJpsiPbPb2760c9;
3894 } else if (sname == "PbPb 2.76c10") {
3895 func=PtJpsiPbPb2760c10;
3896 } else if (sname == "PbPb 2.76c11") {
3897 func=PtJpsiPbPb2760c11;
3898 } else if (sname == "pPb 5.03") {
3900 } else if (sname == "pPb 5.03c1") {
3901 func=PtJpsiPPb5030c1;
3902 } else if (sname == "pPb 5.03c2") {
3903 func=PtJpsiPPb5030c2;
3904 } else if (sname == "pPb 5.03c3") {
3905 func=PtJpsiPPb5030c3;
3906 } else if (sname == "pPb 5.03c4") {
3907 func=PtJpsiPPb5030c4;
3908 } else if (sname == "Pbp 5.03") {
3910 } else if (sname == "Pbp 5.03c1") {
3911 func=PtJpsiPbP5030c1;
3912 } else if (sname == "Pbp 5.03c2") {
3913 func=PtJpsiPbP5030c2;
3914 } else if (sname == "Pbp 5.03c3") {
3915 func=PtJpsiPbP5030c3;
3916 } else if (sname == "Pbp 5.03c4") {
3917 func=PtJpsiPbP5030c4;
3918 } else if (sname == "pPb 8.8") {
3920 } else if (sname == "pPb 8.8c1") {
3921 func=PtJpsiPPb8800c1;
3922 } else if (sname == "pPb 8.8c2") {
3923 func=PtJpsiPPb8800c2;
3924 } else if (sname == "pPb 8.8c3") {
3925 func=PtJpsiPPb8800c3;
3926 } else if (sname == "pPb 8.8c4") {
3927 func=PtJpsiPPb8800c4;
3928 } else if (sname == "Pbp 8.8") {
3930 } else if (sname == "Pbp 8.8c1") {
3931 func=PtJpsiPbP8800c1;
3932 } else if (sname == "Pbp 8.8c2") {
3933 func=PtJpsiPbP8800c2;
3934 } else if (sname == "Pbp 8.8c3") {
3935 func=PtJpsiPbP8800c3;
3936 } else if (sname == "Pbp 8.8c4") {
3937 func=PtJpsiPbP8800c4;
3938 } else if (sname == "CDF scaled") {
3939 func=PtJpsiCDFscaled;
3940 } else if (sname == "CDF pp") {
3941 func=PtJpsiCDFscaledPP;
3942 } else if (sname == "CDF pp 10") {
3943 func=PtJpsiCDFscaledPP10;
3944 } else if (sname == "CDF pp 8.8") {
3945 func=PtJpsiCDFscaledPP9;
3946 } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat y") {
3947 func=PtJpsiCDFscaledPP7;
3948 } else if (sname == "CDF pp 3.94") {
3949 func=PtJpsiCDFscaledPP4;
3950 } else if (sname == "CDF pp 2.76") {
3951 func=PtJpsiCDFscaledPP3;
3952 } else if (sname == "CDF pp 1.9") {
3953 func=PtJpsiCDFscaledPP2;
3954 } else if (sname == "CDF pPb 8.8") {
3955 func=PtJpsiCDFscaledPPb9;
3956 } else if (sname == "CDF Pbp 8.8") {
3957 func=PtJpsiCDFscaledPbP9;
3958 } else if (sname == "CDF PbPb 3.94") {
3959 func=PtJpsiCDFscaledPbPb4;
3960 } else if (sname == "Flat" || sname == "CDF pp 7 flat pt") {
3969 case kUpsilonFamily:
3973 if (sname == "Vogt" || sname == "Vogt PbPb") {
3975 } else if (sname == "Vogt pp") {
3977 } else if (sname == "pp 7") {
3978 func=PtUpsilonPP7000;
3979 } else if (sname == "pp 2.76") {
3980 func=PtUpsilonPP2760;
3981 } else if (sname == "pp 4.4") {
3982 func=PtUpsilonPP4400;
3983 } else if (sname == "pp 5.03") {
3984 func=PtUpsilonPP5030;
3985 } else if (sname == "pp 8.8") {
3986 func=PtUpsilonPP8800;
3987 } else if (sname == "pp 7 poly") {
3988 func=PtUpsilonPP7000;
3989 } else if (sname == "pp 2.76 poly") {
3990 func=PtUpsilonPP2760;
3991 } else if (sname == "PbPb 2.76") {
3992 func=PtUpsilonPbPb2760;
3993 } else if (sname == "PbPb 2.76c1") {
3994 func=PtUpsilonPbPb2760c1;
3995 } else if (sname == "PbPb 2.76c2") {
3996 func=PtUpsilonPbPb2760c2;
3997 } else if (sname == "PbPb 2.76c3") {
3998 func=PtUpsilonPbPb2760c3;
3999 } else if (sname == "PbPb 2.76c4") {
4000 func=PtUpsilonPbPb2760c4;
4001 } else if (sname == "PbPb 2.76c5") {
4002 func=PtUpsilonPbPb2760c5;
4003 } else if (sname == "PbPb 2.76c6") {
4004 func=PtUpsilonPbPb2760c6;
4005 } else if (sname == "PbPb 2.76c7") {
4006 func=PtUpsilonPbPb2760c7;
4007 } else if (sname == "PbPb 2.76c8") {
4008 func=PtUpsilonPbPb2760c8;
4009 } else if (sname == "PbPb 2.76c9") {
4010 func=PtUpsilonPbPb2760c9;
4011 } else if (sname == "PbPb 2.76c10") {
4012 func=PtUpsilonPbPb2760c10;
4013 } else if (sname == "PbPb 2.76c11") {
4014 func=PtUpsilonPbPb2760c11;
4015 } else if (sname == "pPb 5.03") {
4016 func=PtUpsilonPPb5030;
4017 } else if (sname == "pPb 5.03c1") {
4018 func=PtUpsilonPPb5030c1;
4019 } else if (sname == "pPb 5.03c2") {
4020 func=PtUpsilonPPb5030c2;
4021 } else if (sname == "pPb 5.03c3") {
4022 func=PtUpsilonPPb5030c3;
4023 } else if (sname == "pPb 5.03c4") {
4024 func=PtUpsilonPPb5030c4;
4025 } else if (sname == "Pbp 5.03") {
4026 func=PtUpsilonPbP5030;
4027 } else if (sname == "Pbp 5.03c1") {
4028 func=PtUpsilonPbP5030c1;
4029 } else if (sname == "Pbp 5.03c2") {
4030 func=PtUpsilonPbP5030c2;
4031 } else if (sname == "Pbp 5.03c3") {
4032 func=PtUpsilonPbP5030c3;
4033 } else if (sname == "Pbp 5.03c4") {
4034 func=PtUpsilonPbP5030c4;
4035 } else if (sname == "pPb 8.8") {
4036 func=PtUpsilonPPb8800;
4037 } else if (sname == "pPb 8.8c1") {
4038 func=PtUpsilonPPb8800c1;
4039 } else if (sname == "pPb 8.8c2") {
4040 func=PtUpsilonPPb8800c2;
4041 } else if (sname == "pPb 8.8c3") {
4042 func=PtUpsilonPPb8800c3;
4043 } else if (sname == "pPb 8.8c4") {
4044 func=PtUpsilonPPb8800c4;
4045 } else if (sname == "Pbp 8.8") {
4046 func=PtUpsilonPbP8800;
4047 } else if (sname == "Pbp 8.8c1") {
4048 func=PtUpsilonPbP8800c1;
4049 } else if (sname == "Pbp 8.8c2") {
4050 func=PtUpsilonPbP8800c2;
4051 } else if (sname == "Pbp 8.8c3") {
4052 func=PtUpsilonPbP8800c3;
4053 } else if (sname == "Pbp 8.8c4") {
4054 func=PtUpsilonPbP8800c4;
4055 } else if (sname == "CDF scaled") {
4056 func=PtUpsilonCDFscaled;
4057 } else if (sname == "CDF pp") {
4058 func=PtUpsilonCDFscaledPP;
4059 } else if (sname == "CDF pp 10") {
4060 func=PtUpsilonCDFscaledPP10;
4061 } else if (sname == "CDF pp 8.8") {
4062 func=PtUpsilonCDFscaledPP9;
4063 } else if (sname == "CDF pp 7") {
4064 func=PtUpsilonCDFscaledPP7;
4065 } else if (sname == "CDF pp 3.94") {
4066 func=PtUpsilonCDFscaledPP4;
4067 } else if (sname == "CDF pPb 8.8") {
4068 func=PtUpsilonCDFscaledPPb9;
4069 } else if (sname == "CDF Pbp 8.8") {
4070 func=PtUpsilonCDFscaledPbP9;
4071 } else if (sname == "CDF PbPb 3.94") {
4072 func=PtUpsilonCDFscaledPbPb4;
4073 } else if (sname == "Flat") {
4080 if (sname == "F0M0S0 pp") {
4081 func=PtCharmF0M0S0PP;
4082 } else if (sname == "F1M0S0 pp") {
4083 func=PtCharmF1M0S0PP;
4084 } else if (sname == "F2M0S0 pp") {
4085 func=PtCharmF2M0S0PP;
4086 } else if (sname == "F0M1S0 pp") {
4087 func=PtCharmF0M1S0PP;
4088 } else if (sname == "F0M2S0 pp") {
4089 func=PtCharmF0M2S0PP;
4090 } else if (sname == "F0M0S1 pp") {
4091 func=PtCharmF0M0S1PP;
4092 } else if (sname == "F0M0S2 pp") {
4093 func=PtCharmF0M0S2PP;
4094 } else if (sname == "F0M0S3 pp") {
4095 func=PtCharmF0M0S3PP;
4096 } else if (sname == "F0M0S4 pp") {
4097 func=PtCharmF0M0S4PP;
4098 } else if (sname == "F0M0S5 pp") {
4099 func=PtCharmF0M0S5PP;
4100 } else if (sname == "F0M0S6 pp") {
4101 func=PtCharmF0M0S6PP;
4102 } else if (sname == "central") {
4103 func=PtCharmCentral;
4109 if (sname == "F0M0S0 pp") {
4110 func=PtBeautyF0M0S0PP;
4111 } else if (sname == "F1M0S0 pp") {
4112 func=PtBeautyF1M0S0PP;
4113 } else if (sname == "F2M0S0 pp") {
4114 func=PtBeautyF2M0S0PP;
4115 } else if (sname == "F0M1S0 pp") {
4116 func=PtBeautyF0M1S0PP;
4117 } else if (sname == "F0M2S0 pp") {
4118 func=PtBeautyF0M2S0PP;
4119 } else if (sname == "F0M0S1 pp") {
4120 func=PtBeautyF0M0S1PP;
4121 } else if (sname == "F0M0S2 pp") {
4122 func=PtBeautyF0M0S2PP;
4123 } else if (sname == "F0M0S3 pp") {
4124 func=PtBeautyF0M0S3PP;
4125 } else if (sname == "F0M0S4 pp") {
4126 func=PtBeautyF0M0S4PP;
4127 } else if (sname == "F0M0S5 pp") {
4128 func=PtBeautyF0M0S5PP;
4129 } else if (sname == "F0M0S6 pp") {
4130 func=PtBeautyF0M0S6PP;
4131 } else if (sname == "central") {
4132 func=PtBeautyCentral;
4138 if (sname == "2010 Pos PP") {
4139 func=PtPionPos2010PP;
4140 } else if (sname == "2010 Neg PP") {
4141 func=PtPionNeg2010PP;
4147 if (sname == "2010 Pos PP") {
4148 func=PtKaonPos2010PP;
4149 } else if (sname == "2010 Neg PP") {
4150 func=PtKaonNeg2010PP;
4163 printf("<AliGenMUONlib::GetPt> unknown parametrisation\n");
4168 GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const
4171 // Return pointer to y- parameterisation
4173 TString sname = TString(tname);
4191 if (sname == "Vogt" || sname == "Vogt PbPb") {
4193 } else if (sname == "Vogt pp"){
4195 } else if (sname == "pp 7") {
4197 } else if (sname == "pp 2.76") {
4199 } else if (sname == "pp 4.4") {
4201 } else if (sname == "pp 5.03") {
4203 } else if (sname == "pp 8.8") {
4205 } else if (sname == "pp 7 poly") {
4206 func=YJpsiPPpoly7000;
4207 } else if (sname == "pp 2.76 poly") {
4208 func=YJpsiPPpoly2760;
4209 } else if (sname == "PbPb 2.76") {
4211 } else if (sname == "PbPb 2.76c1") {
4212 func=YJpsiPbPb2760c1;
4213 } else if (sname == "PbPb 2.76c2") {
4214 func=YJpsiPbPb2760c2;
4215 } else if (sname == "PbPb 2.76c3") {
4216 func=YJpsiPbPb2760c3;
4217 } else if (sname == "PbPb 2.76c4") {
4218 func=YJpsiPbPb2760c4;
4219 } else if (sname == "PbPb 2.76c5") {
4220 func=YJpsiPbPb2760c5;
4221 } else if (sname == "PbPb 2.76c6") {
4222 func=YJpsiPbPb2760c6;
4223 } else if (sname == "PbPb 2.76c7") {
4224 func=YJpsiPbPb2760c7;
4225 } else if (sname == "PbPb 2.76c8") {
4226 func=YJpsiPbPb2760c8;
4227 } else if (sname == "PbPb 2.76c9") {
4228 func=YJpsiPbPb2760c9;
4229 } else if (sname == "PbPb 2.76c10") {
4230 func=YJpsiPbPb2760c10;
4231 } else if (sname == "PbPb 2.76c11") {
4232 func=YJpsiPbPb2760c11;
4233 } else if (sname == "pPb 5.03") {
4235 } else if (sname == "pPb 5.03c1") {
4236 func=YJpsiPPb5030c1;
4237 } else if (sname == "pPb 5.03c2") {
4238 func=YJpsiPPb5030c2;
4239 } else if (sname == "pPb 5.03c3") {
4240 func=YJpsiPPb5030c3;
4241 } else if (sname == "pPb 5.03c4") {
4242 func=YJpsiPPb5030c4;
4243 } else if (sname == "Pbp 5.03") {
4245 } else if (sname == "Pbp 5.03c1") {
4246 func=YJpsiPbP5030c1;
4247 } else if (sname == "Pbp 5.03c2") {
4248 func=YJpsiPbP5030c2;
4249 } else if (sname == "Pbp 5.03c3") {
4250 func=YJpsiPbP5030c3;
4251 } else if (sname == "Pbp 5.03c4") {
4252 func=YJpsiPbP5030c4;
4253 } else if (sname == "pPb 8.8") {
4255 } else if (sname == "pPb 8.8c1") {
4256 func=YJpsiPPb8800c1;
4257 } else if (sname == "pPb 8.8c2") {
4258 func=YJpsiPPb8800c2;
4259 } else if (sname == "pPb 8.8c3") {
4260 func=YJpsiPPb8800c3;
4261 } else if (sname == "pPb 8.8c4") {
4262 func=YJpsiPPb8800c4;
4263 } else if (sname == "Pbp 8.8") {
4265 } else if (sname == "Pbp 8.8c1") {
4266 func=YJpsiPbP8800c1;
4267 } else if (sname == "Pbp 8.8c2") {
4268 func=YJpsiPbP8800c2;
4269 } else if (sname == "Pbp 8.8c3") {
4270 func=YJpsiPbP8800c3;
4271 } else if (sname == "Pbp 8.8c4") {
4272 func=YJpsiPbP8800c4;
4273 } else if (sname == "CDF scaled") {
4274 func=YJpsiCDFscaled;
4275 } else if (sname == "CDF pp") {
4276 func=YJpsiCDFscaledPP;
4277 } else if (sname == "CDF pp 10") {
4278 func=YJpsiCDFscaledPP10;
4279 } else if (sname == "CDF pp 8.8") {
4280 func=YJpsiCDFscaledPP9;
4281 } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat pt") {
4282 func=YJpsiCDFscaledPP7;
4283 } else if (sname == "CDF pp 3.94") {
4284 func=YJpsiCDFscaledPP4;
4285 } else if (sname == "CDF pp 2.76") {
4286 func=YJpsiCDFscaledPP3;
4287 } else if (sname == "CDF pp 1.9") {
4288 func=YJpsiCDFscaledPP2;
4289 } else if (sname == "CDF pPb 8.8") {
4290 func=YJpsiCDFscaledPPb9;
4291 } else if (sname == "CDF Pbp 8.8") {
4292 func=YJpsiCDFscaledPbP9;
4293 } else if (sname == "CDF PbPb 3.94") {
4294 func=YJpsiCDFscaledPbPb4;
4295 } else if (sname == "Flat" || sname == "CDF pp 7 flat y") {
4304 case kUpsilonFamily:
4308 if (sname == "Vogt" || sname == "Vogt PbPb") {
4310 } else if (sname == "Vogt pp") {
4312 } else if (sname == "pp 7") {
4313 func=YUpsilonPP7000;
4314 } else if (sname == "pp 2.76") {
4315 func=YUpsilonPP2760;
4316 } else if (sname == "pp 4.4") {
4317 func=YUpsilonPP4400;
4318 } else if (sname == "pp 5.03") {
4319 func=YUpsilonPP5030;
4320 } else if (sname == "pp 8.8") {
4321 func=YUpsilonPP8800;
4322 } else if (sname == "pp 7 poly") {
4323 func=YUpsilonPPpoly7000;
4324 } else if (sname == "pp 2.76 poly") {
4325 func=YUpsilonPPpoly2760;
4326 } else if (sname == "PbPb 2.76") {
4327 func=YUpsilonPbPb2760;
4328 } else if (sname == "PbPb 2.76c1") {
4329 func=YUpsilonPbPb2760c1;
4330 } else if (sname == "PbPb 2.76c2") {
4331 func=YUpsilonPbPb2760c2;
4332 } else if (sname == "PbPb 2.76c3") {
4333 func=YUpsilonPbPb2760c3;
4334 } else if (sname == "PbPb 2.76c4") {
4335 func=YUpsilonPbPb2760c4;
4336 } else if (sname == "PbPb 2.76c5") {
4337 func=YUpsilonPbPb2760c5;
4338 } else if (sname == "PbPb 2.76c6") {
4339 func=YUpsilonPbPb2760c6;
4340 } else if (sname == "PbPb 2.76c7") {
4341 func=YUpsilonPbPb2760c7;
4342 } else if (sname == "PbPb 2.76c8") {
4343 func=YUpsilonPbPb2760c8;
4344 } else if (sname == "PbPb 2.76c9") {
4345 func=YUpsilonPbPb2760c9;
4346 } else if (sname == "PbPb 2.76c10") {
4347 func=YUpsilonPbPb2760c10;
4348 } else if (sname == "PbPb 2.76c11") {
4349 func=YUpsilonPbPb2760c11;
4350 } else if (sname == "pPb 5.03") {
4351 func=YUpsilonPPb5030;
4352 } else if (sname == "pPb 5.03c1") {
4353 func=YUpsilonPPb5030c1;
4354 } else if (sname == "pPb 5.03c2") {
4355 func=YUpsilonPPb5030c2;
4356 } else if (sname == "pPb 5.03c3") {
4357 func=YUpsilonPPb5030c3;
4358 } else if (sname == "pPb 5.03c4") {
4359 func=YUpsilonPPb5030c4;
4360 } else if (sname == "Pbp 5.03") {
4361 func=YUpsilonPbP5030;
4362 } else if (sname == "Pbp 5.03c1") {
4363 func=YUpsilonPbP5030c1;
4364 } else if (sname == "Pbp 5.03c2") {
4365 func=YUpsilonPbP5030c2;
4366 } else if (sname == "Pbp 5.03c3") {
4367 func=YUpsilonPbP5030c3;
4368 } else if (sname == "Pbp 5.03c4") {
4369 func=YUpsilonPbP5030c4;
4370 } else if (sname == "pPb 8.8") {
4371 func=YUpsilonPPb8800;
4372 } else if (sname == "pPb 8.8c1") {
4373 func=YUpsilonPPb8800c1;
4374 } else if (sname == "pPb 8.8c2") {
4375 func=YUpsilonPPb8800c2;
4376 } else if (sname == "pPb 8.8c3") {
4377 func=YUpsilonPPb8800c3;
4378 } else if (sname == "pPb 8.8c4") {
4379 func=YUpsilonPPb8800c4;
4380 } else if (sname == "Pbp 8.8") {
4381 func=YUpsilonPbP8800;
4382 } else if (sname == "Pbp 8.8c1") {
4383 func=YUpsilonPbP8800c1;
4384 } else if (sname == "Pbp 8.8c2") {
4385 func=YUpsilonPbP8800c2;
4386 } else if (sname == "Pbp 8.8c3") {
4387 func=YUpsilonPbP8800c3;
4388 } else if (sname == "Pbp 8.8c4") {
4389 func=YUpsilonPbP8800c4;
4390 } else if (sname == "CDF scaled") {
4391 func=YUpsilonCDFscaled;
4392 } else if (sname == "CDF pp") {
4393 func=YUpsilonCDFscaledPP;
4394 } else if (sname == "CDF pp 10") {
4395 func=YUpsilonCDFscaledPP10;
4396 } else if (sname == "CDF pp 8.8") {
4397 func=YUpsilonCDFscaledPP9;
4398 } else if (sname == "CDF pp 7") {
4399 func=YUpsilonCDFscaledPP7;
4400 } else if (sname == "CDF pp 3.94") {
4401 func=YUpsilonCDFscaledPP4;
4402 } else if (sname == "CDF pPb 8.8") {
4403 func=YUpsilonCDFscaledPPb9;
4404 } else if (sname == "CDF Pbp 8.8") {
4405 func=YUpsilonCDFscaledPbP9;
4406 } else if (sname == "CDF PbPb 3.94") {
4407 func=YUpsilonCDFscaledPbPb4;
4408 } else if (sname == "Flat") {
4415 if (sname == "F0M0S0 pp") {
4416 func=YCharmF0M0S0PP;
4417 } else if (sname == "F1M0S0 pp") {
4418 func=YCharmF1M0S0PP;
4419 } else if (sname == "F2M0S0 pp") {
4420 func=YCharmF2M0S0PP;
4421 } else if (sname == "F0M1S0 pp") {
4422 func=YCharmF0M1S0PP;
4423 } else if (sname == "F0M2S0 pp") {
4424 func=YCharmF0M2S0PP;
4425 } else if (sname == "F0M0S1 pp") {
4426 func=YCharmF0M0S1PP;
4427 } else if (sname == "F0M0S2 pp") {
4428 func=YCharmF0M0S2PP;
4429 } else if (sname == "F0M0S3 pp") {
4430 func=YCharmF0M0S3PP;
4431 } else if (sname == "F0M0S4 pp") {
4432 func=YCharmF0M0S4PP;
4433 } else if (sname == "F0M0S5 pp") {
4434 func=YCharmF0M0S5PP;
4435 } else if (sname == "F0M0S6 pp") {
4436 func=YCharmF0M0S6PP;
4442 if (sname == "F0M0S0 pp") {
4443 func=YBeautyF0M0S0PP;
4444 } else if (sname == "F1M0S0 pp") {
4445 func=YBeautyF1M0S0PP;
4446 } else if (sname == "F2M0S0 pp") {
4447 func=YBeautyF2M0S0PP;
4448 } else if (sname == "F0M1S0 pp") {
4449 func=YBeautyF0M1S0PP;
4450 } else if (sname == "F0M2S0 pp") {
4451 func=YBeautyF0M2S0PP;
4452 } else if (sname == "F0M0S1 pp") {
4453 func=YBeautyF0M0S1PP;
4454 } else if (sname == "F0M0S2 pp") {
4455 func=YBeautyF0M0S2PP;
4456 } else if (sname == "F0M0S3 pp") {
4457 func=YBeautyF0M0S3PP;
4458 } else if (sname == "F0M0S4 pp") {
4459 func=YBeautyF0M0S4PP;
4460 } else if (sname == "F0M0S5 pp") {
4461 func=YBeautyF0M0S5PP;
4462 } else if (sname == "F0M0S6 pp") {
4463 func=YBeautyF0M0S6PP;
4469 if (sname == "2010 Pos PP") {
4470 func=YKaonPion2010PP;
4471 } else if (sname == "2010 Neg PP") {
4472 func=YKaonPion2010PP;
4478 if (sname == "2010 Pos PP") {
4479 func=YKaonPion2010PP;
4480 } else if (sname == "2010 Neg PP") {
4481 func=YKaonPion2010PP;
4494 printf("<AliGenMUONlib::GetY> unknown parametrisation\n");
4504 //____________________________________________________________
4505 Double_t AliGenMUONlib::PtChic0( const Double_t *px, const Double_t */*dummy*/)
4508 const Double_t kpt0 = 4.;
4509 const Double_t kxn = 3.6;
4512 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
4513 return x/TMath::Power(pass1,kxn);
4515 Double_t AliGenMUONlib::PtChic1( const Double_t *px, const Double_t */*dummy*/)
4518 const Double_t kpt0 = 4.;
4519 const Double_t kxn = 3.6;
4522 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
4523 return x/TMath::Power(pass1,kxn);
4525 Double_t AliGenMUONlib::PtChic2( const Double_t *px, const Double_t */*dummy*/)
4528 const Double_t kpt0 = 4.;
4529 const Double_t kxn = 3.6;
4532 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
4533 return x/TMath::Power(pass1,kxn);
4535 Double_t AliGenMUONlib::PtChic( const Double_t *px, const Double_t */*dummy*/)
4538 const Double_t kpt0 = 4.;
4539 const Double_t kxn = 3.6;
4542 Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
4543 return x/TMath::Power(pass1,kxn);
4548 //____________________________________________________________
4549 Double_t AliGenMUONlib::YChic0(const Double_t *py, const Double_t */*dummy*/)
4552 const Double_t ky0 = 4.;
4553 const Double_t kb=1.;
4555 Double_t y=TMath::Abs(*py);
4560 yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
4564 Double_t AliGenMUONlib::YChic1(const Double_t *py, const Double_t */*dummy*/)
4567 const Double_t ky0 = 4.;
4568 const Double_t kb=1.;
4570 Double_t y=TMath::Abs(*py);
4575 yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
4579 Double_t AliGenMUONlib::YChic2(const Double_t *py, const Double_t */*dummy*/)
4582 const Double_t ky0 = 4.;
4583 const Double_t kb=1.;
4585 Double_t y=TMath::Abs(*py);
4590 yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
4594 Double_t AliGenMUONlib::YChic(const Double_t *py, const Double_t */*dummy*/)
4597 const Double_t ky0 = 4.;
4598 const Double_t kb=1.;
4600 Double_t y=TMath::Abs(*py);
4605 yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2);
4609 // particle composition
4611 Int_t AliGenMUONlib::IpChic0(TRandom *)
4617 Int_t AliGenMUONlib::IpChic1(TRandom *)
4622 Int_t AliGenMUONlib::IpChic2(TRandom *)
4624 // Chi_c2 prime composition
4627 Int_t AliGenMUONlib::IpChic(TRandom *)
4631 Float_t r = gRandom->Rndm();
4634 } else if( r < 0.377 ) {
4643 //_____________________________________________________________
4645 typedef Int_t (*GenFuncIp) (TRandom *);
4646 GenFuncIp AliGenMUONlib::GetIp(Int_t param, const char* tname) const
4648 // Return pointer to particle type parameterisation
4649 TString sname = TString(tname);
4675 case kUpsilonFamily:
4676 func=IpUpsilonFamily;
4691 if (sname == "2010 Pos PP") {
4693 } else if (sname == "2010 Neg PP") {
4700 if (sname == "2010 Pos PP") {
4702 } else if (sname == "2010 Neg PP") {
4722 printf("<AliGenMUONlib::GetIp> unknown parametrisation\n");
4729 Float_t AliGenMUONlib::Interpolate(Float_t x, Float_t* y, Float_t x0,
4734 // Neville's alorithm for interpolation
4740 // n: number of data points
4741 // no: order of polynom
4743 Float_t* c = new Float_t[n];
4744 Float_t* d = new Float_t[n];
4746 for (i = 0; i < n; i++) {
4751 Int_t ns = int((x - x0)/dx);
4755 for (m = 0; m < no; m++) {
4756 for (i = 0; i < n-m; i++) {
4757 Float_t ho = x0 + Float_t(i) * dx - x;
4758 Float_t hp = x0 + Float_t(i+m+1) * dx - x;
4759 Float_t w = c[i+1] - d[i];
4760 Float_t den = ho-hp;
4767 if (2*ns < (n-m-1)) {
4779 //=============================================================================
4780 Double_t AliGenMUONlib::PtPionPos2010PP(const Double_t *px, const Double_t* /*dummy*/)
4783 const Double_t par[3] = {2.27501, 0.116141, 5.59591};
4784 Double_t pt = px[0];
4785 Double_t m0 = TDatabasePDG::Instance()->GetParticle(211)->Mass();
4786 Double_t mt = TMath::Sqrt(m0*m0 + pt*pt);
4787 Double_t nc = par[1]*par[2];
4788 Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0);
4789 Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]);
4790 Double_t fn = par[0] * pt * t1 * t2;
4794 //=============================================================================
4795 Double_t AliGenMUONlib::PtPionNeg2010PP(const Double_t *px, const Double_t* /*dummy*/)
4798 const Double_t par[3] = {2.25188, 0.12176, 5.91166};
4799 Double_t pt = px[0];
4800 Double_t m0 = TDatabasePDG::Instance()->GetParticle(211)->Mass();
4801 Double_t mt = TMath::Sqrt(m0*m0 + pt*pt);
4802 Double_t nc = par[1]*par[2];
4803 Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0);
4804 Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]);
4805 Double_t fn = par[0] * pt * t1 * t2;
4809 //=============================================================================
4810 Double_t AliGenMUONlib::PtKaonPos2010PP(const Double_t *px, const Double_t* /*dummy*/)
4813 const Double_t par[3] = {0.279386, 0.195466, 6.59587};
4814 Double_t pt = px[0];
4815 Double_t m0 = TDatabasePDG::Instance()->GetParticle(321)->Mass();
4816 Double_t mt = TMath::Sqrt(m0*m0 + pt*pt);
4817 Double_t nc = par[1]*par[2];
4818 Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0);
4819 Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]);
4820 Double_t fn = par[0] * pt * t1 * t2;
4824 //=============================================================================
4825 Double_t AliGenMUONlib::PtKaonNeg2010PP(const Double_t *px, const Double_t* /*dummy*/)
4828 const Double_t par[3] = {0.278927, 0.189049, 6.43006};
4829 Double_t pt = px[0];
4830 Double_t m0 = TDatabasePDG::Instance()->GetParticle(321)->Mass();
4831 Double_t mt = TMath::Sqrt(m0*m0 + pt*pt);
4832 Double_t nc = par[1]*par[2];
4833 Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0);
4834 Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]);
4835 Double_t fn = par[0] * pt * t1 * t2;
4839 //=============================================================================
4840 Double_t AliGenMUONlib::YKaonPion2010PP(const Double_t *px, const Double_t* /*dummy*/)
4844 Double_t sigma = 2.35;
4845 Double_t kernal = y/2./sigma;
4846 Double_t fxn = TMath::Exp(-1.*kernal*kernal);
4850 //=============================================================================
4851 Int_t AliGenMUONlib::IpPionPos(TRandom *)
4857 //=============================================================================
4858 Int_t AliGenMUONlib::IpPionNeg(TRandom *)
4864 //=============================================================================
4865 Int_t AliGenMUONlib::IpKaonPos(TRandom *)
4871 //=============================================================================
4872 Int_t AliGenMUONlib::IpKaonNeg(TRandom *)