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Initialization via standard input cards written into dpmjet.inp.
[u/mrichter/AliRoot.git] / TDPMjet / TDPMjet.cxx
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1a52e0ed 1//*KEEP,CopyRight,T=C.
2/*************************************************************************
3 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
4 * All rights reserved. *
5 * *
6 * For the licensing terms see $ROOTSYS/LICENSE. *
7 * For the list of contributors see $ROOTSYS/README/CREDITS. *
8 *************************************************************************/
9//*KEND.
10
11//* +-------------------------------------------------------------+
12//* | |
13//* | |
14//* | DPMJET 3.0 |
15//* | |
16//* | |
17//* | S. Roesler+), R. Engel#), J. Ranft*) |
18//* | |
19//* | +) CERN, TIS-RP |
20//* | CH-1211 Geneva 23, Switzerland |
21//* | Email: Stefan.Roesler@cern.ch |
22//* | |
23//* | #) University of Delaware, BRI |
24//* | Newark, DE 19716, USA |
25//* | |
26//* | *) University of Siegen, Dept. of Physics |
27//* | D-57068 Siegen, Germany |
28//* | |
29//* | |
30//* | http://home.cern.ch/sroesler/dpmjet3.html |
31//* | |
32//* | |
33//* | Monte Carlo models used for event generation: |
34//* | PHOJET 1.12, JETSET 7.4 and LEPTO 6.5.1 |
35//* | |
36//* +-------------------------------------------------------------+
37
38//*KEEP,TDPMjet.
39#include "TDPMjet.h"
40//*KEEP,DPMCOMMON.
41#include "DPMcommon.h"
42//*KEEP,TParticle,T=C++.
43#include "TParticle.h"
44//*KEND.
45
46//*KEEP,TROOT.
47#include "TROOT.h"
48//*KEND.
49
50#ifndef WIN32
51# define dt_dtuini dt_dtuini_
52# define dt_getemu de_getemu_
53# define dt_kkinc dt_kkinc_
54# define pho_phist pho_phist_
55# define dt_dtuout dt_dtuout_
56# define dt_rndm dt_rndm_
57# define dt_rndmst dt_rndmst_
58# define dt_rndmin dt_rndmin_
59# define dt_rndmou dt_rndmou_
60# define type_of_call
61#else
62# define dt_dtuini DT_DTUINI
63# define dt_getemu DT_GETEMU
64# define dt_kkinc DT_KKINC
65# define pho_phist PHO_PHIST
66# define dt_dtuout DT_DTUOUT
67# define dt_rndm DT_RNDM
68# define dt_rndmst DT_RNDMST
69# define dt_rndmin DT_RNDMIN
70# define dt_rndmou DT_RNDMOU
71# define type_of_call _stdcall
72#endif
73
74#ifndef WIN32
75extern "C" void type_of_call dt_dtuini(Int_t & , Double_t &, Int_t & , Int_t &,
76 Int_t &, Int_t &, Int_t &, Int_t &);
77extern "C" double type_of_call dt_getemu(Int_t &, Int_t &, Int_t &, Int_t &);
78extern "C" void type_of_call dt_kkinc(Int_t &, Int_t &, Int_t &, Int_t &,
79 Int_t &, Double_t &, Int_t &, Int_t &);
80extern "C" void type_of_call pho_phist(Int_t &, Double_t &);
81extern "C" void type_of_call dt_dtuout();
82extern "C" void type_of_call dt_rndm(Int_t &);
83extern "C" void type_of_call dt_rndmst(Int_t &, Int_t &, Int_t &, Int_t &);
84extern "C" void type_of_call dt_rndmin(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
85extern "C" void type_of_call dt_rndmou(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
86
87#else
88
89#endif
90
91ClassImp(TDPMjet)
92
93//______________________________________________________________________________
94TDPMjet::TDPMjet() : TGenerator("dpmjet","dpmjet")
95{
d38751f5 96 fNEvent = 0;
97 fIp = 0;
98 fIpz = 0;
99 fIt = 0;
100 fItz = 0;
101 fEpn = 0;
102 fCMEn = 0;
103 fIdp = 0;
104 fProcess = kDpmMb;
1a52e0ed 105}
106
107//______________________________________________________________________________
d38751f5 108TDPMjet::TDPMjet(DpmProcess_t iproc, Int_t Ip=208, Int_t Ipz=82, Int_t It=208, Int_t Itz=82,
1a52e0ed 109 Double_t Epn=2700., Double_t CMEn=5400.)
110 : TGenerator("dpmjet","dpmjet")
111{
d38751f5 112 printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
113
114 fNEvent = 0;
115 fIp = Ip;
116 fIpz = Ipz;
117 fIt = It;
118 fItz = Itz;
119 fEpn = Epn;
120 fCMEn = CMEn;
121 fIdp = 0;
122 fProcess = iproc;
1a52e0ed 123}
124
125
126//______________________________________________________________________________
127Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
128{
129//
130// Default primary creation method. It reads the /HEPEVT/ common block which
131// has been filled by the GenerateEvent method. If the event generator does
132// not use the HEPEVT common block, This routine has to be overloaded by
133// the subclasses.
134// The function loops on the generated particles and store them in
135// the TClonesArray pointed by the argument particles.
136// The default action is to store only the stable particles
137// This can be demanded explicitly by setting the option = "Final"
138// If the option = "All", all the particles are stored.
139//
140 if(particles==0) return 0;
141 TClonesArray &Particles = *particles;
142 Particles.Clear();
143 Int_t numpart = 0; // Total number of produced particles
144 Int_t numStabpart = 0; // Total number of produced stable particles
145 Double_t entot = 0; // Total energy in final state (from stable particles)
146
147 numpart = DTEVT1.nhkk;
148 for(Int_t i=0; i<numpart; i++){
149 if(DTEVT1.isthkk[i]==1 || DTEVT1.isthkk[i]==-1 || DTEVT1.isthkk[i]==1001){
150 numStabpart++;
151 entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
152 }
153 }
d38751f5 154 //printf("\n TDPMjet: DPMJET stack contains %d particles", numpart);
155 // printf("\n TDPMjet: Final not decayed particles: %d", numStabpart);
156 //printf("\n TDPMjet: Total energy: %f GeV \n", entot);
1a52e0ed 157 Int_t nump = 0;
158
159 if(!strcmp(option,"") || !strcmp(option,"Final")){
160 for (Int_t i=0; i < numpart; i++) {
161
162 if (DTEVT1.isthkk[i] == 1) {
163 //
164 // Use the common block values for the TParticle constructor
165 //
1a52e0ed 166 new(Particles[nump]) TParticle(
167 DTEVT1.idhkk[i],
168 DTEVT1.isthkk[i],
169 -1,
170 -1,
171 -1,
172 -1,
173 DTEVT1.phkk[i][0],
174 DTEVT1.phkk[i][1],
175 DTEVT1.phkk[i][2],
176 DTEVT1.phkk[i][3],
177
178 DTEVT1.vhkk[i][0],
179 DTEVT1.vhkk[i][1],
180 DTEVT1.vhkk[i][2],
181 DTEVT1.vhkk[i][3]);
182 nump++;
183 }
184 }
185 }
186 else if(!strcmp(option,"All")){
187 nump = numpart;
188 for (Int_t i=0; i <= numpart; i++){
189
190 // DTEVT1.JMOHKK[i][0] pointer to the entry of the 1st mother of entry i
191 Int_t iParent = DTEVT1.jmohkk[i][0] - 1;
192
193 if(iParent >= 0){
194 TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
1a52e0ed 195 mother->SetLastDaughter(i);
196 if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
197 }
198 // --- PDGcode for residual nuclei (idhkk=80000)
199 // --- 10000*Z + 10*A
200 // --- DPMJET -> idres = mass #, idxres = charge
201 if(DTEVT1.idhkk[i] == 80000)
202 DTEVT1.idhkk[i] = 10000*DTEVT2.idxres[i]+10*DTEVT2.idres[i];
d38751f5 203/*
1a52e0ed 204 if(DTEVT2.idxres[i] != 0)
205 printf("\n pc#%d -> A = %d, Z = %d -> PDGcode = %d\n",
206 i,DTEVT2.idres[i],DTEVT2.idxres[i],DTEVT1.idhkk[i]);
d38751f5 207*/
1a52e0ed 208 new(Particles[i]) TParticle(
209 DTEVT1.idhkk[i],
210 DTEVT1.isthkk[i],
211 iParent,
212 -1,
213 -1,
214 -1,
215
216 DTEVT1.phkk[i][0],
217 DTEVT1.phkk[i][1],
218 DTEVT1.phkk[i][2],
219 DTEVT1.phkk[i][3],
220
221 DTEVT1.vhkk[i][0],
222 DTEVT1.vhkk[i][1],
223 DTEVT1.vhkk[i][2],
224 DTEVT1.vhkk[i][3]);
1a52e0ed 225 } // Particle loop
226 }
227 return nump;
228}
229
230
231//====================== access to dpmjet subroutines =========================
232//______________________________________________________________________________
233void TDPMjet::Initialize()
234{
d38751f5 235//
236// Write standard DPMJET input cards
237//
238 FILE* out = fopen("dpmjet.inp","w");
239// Projectile and Target definition
240 fprintf(out, "PROJPAR %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", (Float_t) fIp, (Float_t) fIpz, 0., 0., 0., 0.);
241 fprintf(out, "TARPAR %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", (Float_t) fIt, (Float_t) fItz, 0., 0., 0., 0.);
242// Beam energy and crossing-angle
243 fprintf(out, "BEAM %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",fEpn, fEpn, 0., 0., 0., 0.);
244// Centrality
245 fprintf(out, "CENTRAL %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
1a52e0ed 246
d38751f5 247//
248// PHOJET specific
249 fprintf(out, "PHOINPUT\n");
250 fprintf(out, "DEBUG 0 0 0 \n");
251
252 if (fProcess == kDpmMb) {
253 fprintf(out, "PROCESS 1 0 1 1 1 1 1 1\n");
254 } else if (fProcess == kDpmMbNonDiffr) {
255 fprintf(out, "PROCESS 1 0 1 1 0 0 0 1\n");
256 }
257
258 fprintf(out, "ENDINPUT\n");
259//
260// START card
261 fprintf(out, "START 1.0 0.0\n");
262 fprintf(out, "STOP\n");
263 fclose(out);
264//
265// Call DPMJET initialisation
266 Int_t iemu = 0; // No emulsion (default)
267 Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
1a52e0ed 268
269}
270
271
272//______________________________________________________________________________
273void TDPMjet::GenerateEvent()
274{
275 // Generates one event;
276 fNEvent++;
277 DTEVNO.nevent=fNEvent;
1a52e0ed 278 Int_t kkmat=-1;
279 Float_t Elab = fEpn;
280 Int_t irej=0;
281 Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
282 if(irej!=0) return;
1a52e0ed 283}
284//______________________________________________________________________________
285void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
286 int ntmass, int ntchar, int idp, int iemu)
287{
288 // Call dmpjet routine DT_DTUINI passing the parameters
289 // in a way accepted by Fortran routines
290
d38751f5 291
292 printf("\n-------------------------------------------\n");
1a52e0ed 293 printf("\n Dt_Dtuini called with:\n\n");
294 printf(" Projectile -> A = %d, Z = %d \n",npmass, npchar);
295 printf(" Target -> A = %d, Z = %d \n",ntmass, ntchar);
296 printf(" Proj. LAB E -> E = %f GeV \n",epn);
297 printf(" nevts = %d, idp = %d, iemu = %d \n",nevts,idp,iemu);
d38751f5 298 printf("\n-------------------------------------------\n");
1a52e0ed 299
300 dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
301
302}
303
304//______________________________________________________________________________
305void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
306 int idp, double elab, int kkmat, int irej)
307{
308 // Call dmpjet routine DT_KKINC passing the parameters
309 // in a way accepted by Fortran routines
1a52e0ed 310 dt_kkinc(npmass, npchar, ntmass, ntchar, idp, elab, kkmat, irej);
1a52e0ed 311}
312
313//______________________________________________________________________________
314void TDPMjet::Pho_Phist(int imode, double weight)
315{
316 // Call dmpjet routine PHO_PHIST passing the parameters
317 // in a way accepted by Fortran routines
318
319 pho_phist(imode,weight);
320
321}
322
323//______________________________________________________________________________
324void TDPMjet::Dt_Dtuout()
325{
326 // Call dmpjet routine DT_DTUOT passing the parameters
327 // in a way accepted by Fortran routines
328
329 dt_dtuout();
330
331}
332
333//______________________________________________________________________________
334Int_t TDPMjet::GetEvNum() const
335{
336 return DTEVT1.nevhkk;
337}
338//______________________________________________________________________________
339Int_t TDPMjet::GetEntriesNum() const
340{
341 return DTEVT1.nhkk;
342}
343//______________________________________________________________________________
344Int_t TDPMjet::GetNumStablePc() const
345{
346 Int_t NumStablePc = 0;
347 for(Int_t i=0; i<DTEVT1.nhkk; i++){
348 if(DTEVT1.isthkk[i] == 1) NumStablePc++;
349 }
350 return NumStablePc;
351}
352
353//______________________________________________________________________________
354Float_t TDPMjet::GetTotEnergy() const
355{
356 Float_t TotEnergy = 0.;
357 for(Int_t i=0; i<DTEVT1.nhkk; i++){
358 if(DTEVT1.isthkk[i] == 1)
359 TotEnergy += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
360 }
361 return TotEnergy;
362}
363
364//______________________________________________________________________________
365Int_t TDPMjet::GetStatusCode(Int_t evnum) const
366{
367 return DTEVT1.isthkk[evnum];
368}
369//______________________________________________________________________________
370Int_t TDPMjet::GetPDGCode(Int_t evnum) const
371{
372 return DTEVT1.idhkk[evnum];
373}
374//______________________________________________________________________________
375Double_t TDPMjet::Getpx(Int_t evnum) const
376{
377 return DTEVT1.phkk[evnum][0];
378}
379//______________________________________________________________________________
380Double_t TDPMjet::Getpy(Int_t evnum) const
381{
382 return DTEVT1.phkk[evnum][1];
383}
384//______________________________________________________________________________
385Double_t TDPMjet::Getpz(Int_t evnum) const
386{
387 return DTEVT1.phkk[evnum][2];
388}
389//______________________________________________________________________________
390Double_t TDPMjet::GetEnergy(Int_t evnum) const
391{
392 return DTEVT1.phkk[evnum][3];
393}
394//______________________________________________________________________________
395Double_t TDPMjet::GetMass(Int_t evnum) const
396{
397 return DTEVT1.phkk[evnum][4];
398}
399//______________________________________________________________________________
400Int_t TDPMjet::GetFragmentA(Int_t evnum) const
401{
402 return DTEVT2.idres[evnum];
403}
404//______________________________________________________________________________
405Int_t TDPMjet::GetFragmentZ(Int_t evnum) const
406{
407 return DTEVT2.idxres[evnum];
408}
409//______________________________________________________________________________
410Double_t TDPMjet::GetXSFrac() const
411{
412 return DTIMPA.xsfrac;
413}
414//______________________________________________________________________________
415Double_t TDPMjet::GetBImpac() const
416{
417 return DTGLCP.bimpac;
418}
419//______________________________________________________________________________
420Double_t TDPMjet::GetProjRadius() const
421{
422 return DTGLCP.rproj;
423}
424//______________________________________________________________________________
425Double_t TDPMjet::GetTargRadius() const
426{
427 return DTGLCP.rtarg;
428}
429//______________________________________________________________________________
430Int_t TDPMjet::GetProjWounded() const
431{
432 return DTGLCP.nwasam;
433}
434//______________________________________________________________________________
435Int_t TDPMjet::GetTargWounded() const
436{
437 return DTGLCP.nwbsam;
438}
439//______________________________________________________________________________
440Int_t TDPMjet::GetProjSpectators() const
441{
442 return DTGLCP.nwtaac;
443}
444//______________________________________________________________________________
445Int_t TDPMjet::GetTargSpectators() const
446{
447 return DTGLCP.nwtbac;
448}
449
450//______________________________________________________________________________
451void TDPMjet::Dt_Rndm(int idummy)
452{
453 dt_rndm(idummy);
454}
455
456//______________________________________________________________________________
457void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
458{
459 dt_rndmst(na1, na2, na3, nb1);
460}
461
462//______________________________________________________________________________
463void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
464{
465 dt_rndmin(u, c, cd, cm, i, j);
466}
467
468//______________________________________________________________________________
469void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
470{
471 dt_rndmou(u, c, cd, cm, i, j);
472}
473