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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
f97d4a8e 93
1a52e0ed 94//______________________________________________________________________________
f97d4a8e 95 TDPMjet::TDPMjet() :
96 TGenerator("dpmjet","dpmjet"),
97 fNEvent(0),
98 fIp(0),
99 fIpz(0),
100 fIt(0),
101 fItz(0),
102 fEpn(0.),
103 fPpn(0.),
104 fCMEn(0.),
105 fIdp(0),
106 fBmin(0.),
107 fBmax(0.),
108 fFCentr(0),
109 fPi0Decay(0),
110 fProcess(kDpmMb)
1a52e0ed 111{
f97d4a8e 112// Default Constructor
1a52e0ed 113}
114
115//______________________________________________________________________________
d38751f5 116TDPMjet::TDPMjet(DpmProcess_t iproc, Int_t Ip=208, Int_t Ipz=82, Int_t It=208, Int_t Itz=82,
f97d4a8e 117 Double_t Epn=2700., Double_t CMEn=5400.)
118 : TGenerator("dpmjet","dpmjet"),
119 fNEvent(0),
120 fIp(Ip),
121 fIpz(Ipz),
122 fIt(It),
123 fItz(Itz),
124 fEpn(Epn),
125 fCMEn(CMEn),
126 fIdp(0),
127 fBmin(0.),
128 fBmax(0.),
129 fFCentr(0),
130 fPi0Decay(0),
131 fProcess(iproc)
1a52e0ed 132{
d38751f5 133 printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
1a52e0ed 134}
135
136
137//______________________________________________________________________________
138Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
139{
140//
141// Default primary creation method. It reads the /HEPEVT/ common block which
142// has been filled by the GenerateEvent method. If the event generator does
143// not use the HEPEVT common block, This routine has to be overloaded by
144// the subclasses.
145// The function loops on the generated particles and store them in
146// the TClonesArray pointed by the argument particles.
147// The default action is to store only the stable particles
148// This can be demanded explicitly by setting the option = "Final"
149// If the option = "All", all the particles are stored.
150//
151 if(particles==0) return 0;
152 TClonesArray &Particles = *particles;
153 Particles.Clear();
154 Int_t numpart = 0; // Total number of produced particles
155 Int_t numStabpart = 0; // Total number of produced stable particles
156 Double_t entot = 0; // Total energy in final state (from stable particles)
157
158 numpart = DTEVT1.nhkk;
159 for(Int_t i=0; i<numpart; i++){
160 if(DTEVT1.isthkk[i]==1 || DTEVT1.isthkk[i]==-1 || DTEVT1.isthkk[i]==1001){
161 numStabpart++;
162 entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
163 }
164 }
d38751f5 165 //printf("\n TDPMjet: DPMJET stack contains %d particles", numpart);
166 // printf("\n TDPMjet: Final not decayed particles: %d", numStabpart);
167 //printf("\n TDPMjet: Total energy: %f GeV \n", entot);
1a52e0ed 168 Int_t nump = 0;
169
170 if(!strcmp(option,"") || !strcmp(option,"Final")){
171 for (Int_t i=0; i < numpart; i++) {
172
173 if (DTEVT1.isthkk[i] == 1) {
174 //
175 // Use the common block values for the TParticle constructor
176 //
1a52e0ed 177 new(Particles[nump]) TParticle(
178 DTEVT1.idhkk[i],
179 DTEVT1.isthkk[i],
180 -1,
181 -1,
182 -1,
183 -1,
184 DTEVT1.phkk[i][0],
185 DTEVT1.phkk[i][1],
186 DTEVT1.phkk[i][2],
187 DTEVT1.phkk[i][3],
188
189 DTEVT1.vhkk[i][0],
190 DTEVT1.vhkk[i][1],
191 DTEVT1.vhkk[i][2],
192 DTEVT1.vhkk[i][3]);
193 nump++;
194 }
195 }
196 }
197 else if(!strcmp(option,"All")){
198 nump = numpart;
199 for (Int_t i=0; i <= numpart; i++){
200
201 // DTEVT1.JMOHKK[i][0] pointer to the entry of the 1st mother of entry i
202 Int_t iParent = DTEVT1.jmohkk[i][0] - 1;
203
204 if(iParent >= 0){
205 TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
1a52e0ed 206 mother->SetLastDaughter(i);
207 if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
208 }
209 // --- PDGcode for residual nuclei (idhkk=80000)
210 // --- 10000*Z + 10*A
211 // --- DPMJET -> idres = mass #, idxres = charge
212 if(DTEVT1.idhkk[i] == 80000)
213 DTEVT1.idhkk[i] = 10000*DTEVT2.idxres[i]+10*DTEVT2.idres[i];
d38751f5 214/*
1a52e0ed 215 if(DTEVT2.idxres[i] != 0)
216 printf("\n pc#%d -> A = %d, Z = %d -> PDGcode = %d\n",
217 i,DTEVT2.idres[i],DTEVT2.idxres[i],DTEVT1.idhkk[i]);
d38751f5 218*/
1a52e0ed 219 new(Particles[i]) TParticle(
220 DTEVT1.idhkk[i],
221 DTEVT1.isthkk[i],
222 iParent,
223 -1,
224 -1,
225 -1,
226
227 DTEVT1.phkk[i][0],
228 DTEVT1.phkk[i][1],
229 DTEVT1.phkk[i][2],
230 DTEVT1.phkk[i][3],
231
232 DTEVT1.vhkk[i][0],
233 DTEVT1.vhkk[i][1],
234 DTEVT1.vhkk[i][2],
235 DTEVT1.vhkk[i][3]);
1a52e0ed 236 } // Particle loop
237 }
238 return nump;
239}
240
241
242//====================== access to dpmjet subroutines =========================
243//______________________________________________________________________________
244void TDPMjet::Initialize()
245{
d38751f5 246//
247// Write standard DPMJET input cards
248//
249 FILE* out = fopen("dpmjet.inp","w");
250// Projectile and Target definition
251 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.);
252 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.);
253// Beam energy and crossing-angle
254 fprintf(out, "BEAM %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",fEpn, fEpn, 0., 0., 0., 0.);
255// Centrality
256 fprintf(out, "CENTRAL %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
f97d4a8e 257// Particle decays
258 if (fPi0Decay)
259 fprintf(out, "PARDECAY %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", 2., 0., 0., 0., 0., 0.);
d38751f5 260//
261// PHOJET specific
262 fprintf(out, "PHOINPUT\n");
263 fprintf(out, "DEBUG 0 0 0 \n");
264
265 if (fProcess == kDpmMb) {
266 fprintf(out, "PROCESS 1 0 1 1 1 1 1 1\n");
267 } else if (fProcess == kDpmMbNonDiffr) {
268 fprintf(out, "PROCESS 1 0 1 1 0 0 0 1\n");
269 }
270
271 fprintf(out, "ENDINPUT\n");
272//
273// START card
274 fprintf(out, "START 1.0 0.0\n");
275 fprintf(out, "STOP\n");
276 fclose(out);
277//
278// Call DPMJET initialisation
279 Int_t iemu = 0; // No emulsion (default)
280 Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
1a52e0ed 281
282}
283
284
285//______________________________________________________________________________
286void TDPMjet::GenerateEvent()
287{
288 // Generates one event;
289 fNEvent++;
290 DTEVNO.nevent=fNEvent;
1a52e0ed 291 Int_t kkmat=-1;
292 Float_t Elab = fEpn;
293 Int_t irej=0;
294 Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
295 if(irej!=0) return;
1a52e0ed 296}
297//______________________________________________________________________________
298void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
299 int ntmass, int ntchar, int idp, int iemu)
300{
301 // Call dmpjet routine DT_DTUINI passing the parameters
302 // in a way accepted by Fortran routines
303
d38751f5 304
305 printf("\n-------------------------------------------\n");
1a52e0ed 306 printf("\n Dt_Dtuini called with:\n\n");
307 printf(" Projectile -> A = %d, Z = %d \n",npmass, npchar);
308 printf(" Target -> A = %d, Z = %d \n",ntmass, ntchar);
309 printf(" Proj. LAB E -> E = %f GeV \n",epn);
310 printf(" nevts = %d, idp = %d, iemu = %d \n",nevts,idp,iemu);
d38751f5 311 printf("\n-------------------------------------------\n");
1a52e0ed 312
313 dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
314
315}
316
317//______________________________________________________________________________
318void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
319 int idp, double elab, int kkmat, int irej)
320{
321 // Call dmpjet routine DT_KKINC passing the parameters
322 // in a way accepted by Fortran routines
1a52e0ed 323 dt_kkinc(npmass, npchar, ntmass, ntchar, idp, elab, kkmat, irej);
1a52e0ed 324}
325
326//______________________________________________________________________________
327void TDPMjet::Pho_Phist(int imode, double weight)
328{
329 // Call dmpjet routine PHO_PHIST passing the parameters
330 // in a way accepted by Fortran routines
331
332 pho_phist(imode,weight);
333
334}
335
336//______________________________________________________________________________
337void TDPMjet::Dt_Dtuout()
338{
339 // Call dmpjet routine DT_DTUOT passing the parameters
340 // in a way accepted by Fortran routines
341
342 dt_dtuout();
343
344}
345
346//______________________________________________________________________________
347Int_t TDPMjet::GetEvNum() const
348{
349 return DTEVT1.nevhkk;
350}
351//______________________________________________________________________________
352Int_t TDPMjet::GetEntriesNum() const
353{
354 return DTEVT1.nhkk;
355}
356//______________________________________________________________________________
357Int_t TDPMjet::GetNumStablePc() const
358{
359 Int_t NumStablePc = 0;
360 for(Int_t i=0; i<DTEVT1.nhkk; i++){
361 if(DTEVT1.isthkk[i] == 1) NumStablePc++;
362 }
363 return NumStablePc;
364}
365
366//______________________________________________________________________________
367Float_t TDPMjet::GetTotEnergy() const
368{
369 Float_t TotEnergy = 0.;
370 for(Int_t i=0; i<DTEVT1.nhkk; i++){
371 if(DTEVT1.isthkk[i] == 1)
372 TotEnergy += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
373 }
374 return TotEnergy;
375}
376
377//______________________________________________________________________________
378Int_t TDPMjet::GetStatusCode(Int_t evnum) const
379{
380 return DTEVT1.isthkk[evnum];
381}
382//______________________________________________________________________________
383Int_t TDPMjet::GetPDGCode(Int_t evnum) const
384{
385 return DTEVT1.idhkk[evnum];
386}
387//______________________________________________________________________________
388Double_t TDPMjet::Getpx(Int_t evnum) const
389{
390 return DTEVT1.phkk[evnum][0];
391}
392//______________________________________________________________________________
393Double_t TDPMjet::Getpy(Int_t evnum) const
394{
395 return DTEVT1.phkk[evnum][1];
396}
397//______________________________________________________________________________
398Double_t TDPMjet::Getpz(Int_t evnum) const
399{
400 return DTEVT1.phkk[evnum][2];
401}
402//______________________________________________________________________________
403Double_t TDPMjet::GetEnergy(Int_t evnum) const
404{
405 return DTEVT1.phkk[evnum][3];
406}
407//______________________________________________________________________________
408Double_t TDPMjet::GetMass(Int_t evnum) const
409{
410 return DTEVT1.phkk[evnum][4];
411}
412//______________________________________________________________________________
413Int_t TDPMjet::GetFragmentA(Int_t evnum) const
414{
415 return DTEVT2.idres[evnum];
416}
417//______________________________________________________________________________
418Int_t TDPMjet::GetFragmentZ(Int_t evnum) const
419{
420 return DTEVT2.idxres[evnum];
421}
422//______________________________________________________________________________
423Double_t TDPMjet::GetXSFrac() const
424{
425 return DTIMPA.xsfrac;
426}
427//______________________________________________________________________________
428Double_t TDPMjet::GetBImpac() const
429{
430 return DTGLCP.bimpac;
431}
432//______________________________________________________________________________
433Double_t TDPMjet::GetProjRadius() const
434{
435 return DTGLCP.rproj;
436}
437//______________________________________________________________________________
438Double_t TDPMjet::GetTargRadius() const
439{
440 return DTGLCP.rtarg;
441}
442//______________________________________________________________________________
443Int_t TDPMjet::GetProjWounded() const
444{
445 return DTGLCP.nwasam;
446}
447//______________________________________________________________________________
448Int_t TDPMjet::GetTargWounded() const
449{
450 return DTGLCP.nwbsam;
451}
452//______________________________________________________________________________
453Int_t TDPMjet::GetProjSpectators() const
454{
455 return DTGLCP.nwtaac;
456}
457//______________________________________________________________________________
458Int_t TDPMjet::GetTargSpectators() const
459{
460 return DTGLCP.nwtbac;
461}
462
463//______________________________________________________________________________
464void TDPMjet::Dt_Rndm(int idummy)
465{
466 dt_rndm(idummy);
467}
468
469//______________________________________________________________________________
470void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
471{
472 dt_rndmst(na1, na2, na3, nb1);
473}
474
475//______________________________________________________________________________
476void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
477{
478 dt_rndmin(u, c, cd, cm, i, j);
479}
480
481//______________________________________________________________________________
482void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
483{
484 dt_rndmou(u, c, cd, cm, i, j);
485}
486