2 /*************************************************************************
3 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
4 * All rights reserved. *
6 * For the licensing terms see $ROOTSYS/LICENSE. *
7 * For the list of contributors see $ROOTSYS/README/CREDITS. *
8 *************************************************************************/
11 //* +-------------------------------------------------------------+
17 //* | S. Roesler+), R. Engel#), J. Ranft*) |
19 //* | +) CERN, TIS-RP |
20 //* | CH-1211 Geneva 23, Switzerland |
21 //* | Email: Stefan.Roesler@cern.ch |
23 //* | #) University of Delaware, BRI |
24 //* | Newark, DE 19716, USA |
26 //* | *) University of Siegen, Dept. of Physics |
27 //* | D-57068 Siegen, Germany |
30 //* | http://home.cern.ch/sroesler/dpmjet3.html |
33 //* | Monte Carlo models used for event generation: |
34 //* | PHOJET 1.12, JETSET 7.4 and LEPTO 6.5.1 |
36 //* +-------------------------------------------------------------+
41 #include "DPMcommon.h"
42 //*KEEP,TParticle,T=C++
43 #include "TParticle.h"
44 #include "TClonesArray.h"
52 # define dt_dtuini dt_dtuini_
53 # define dt_getemu de_getemu_
54 # define dt_kkinc dt_kkinc_
55 # define pho_phist pho_phist_
56 # define dt_dtuout dt_dtuout_
57 # define dt_rndm dt_rndm_
58 # define dt_rndmst dt_rndmst_
59 # define dt_rndmin dt_rndmin_
60 # define dt_rndmou dt_rndmou_
61 # define dpmjet_openinp dpmjet_openinp_
64 # define dt_dtuini DT_DTUINI
65 # define dt_getemu DT_GETEMU
66 # define dt_kkinc DT_KKINC
67 # define pho_phist PHO_PHIST
68 # define dt_dtuout DT_DTUOUT
69 # define dt_rndm DT_RNDM
70 # define dt_rndmst DT_RNDMST
71 # define dt_rndmin DT_RNDMIN
72 # define dt_rndmou DT_RNDMOU
73 # define dpmjet_openinp DPMJET_OPENINP
74 # define type_of_call _stdcall
78 extern "C" void type_of_call dt_dtuini(Int_t & , Double_t &, Int_t & , Int_t &,
79 Int_t &, Int_t &, Int_t &, Int_t &);
80 extern "C" double type_of_call dt_getemu(Int_t &, Int_t &, Int_t &, Int_t &);
81 extern "C" void type_of_call dt_kkinc(Int_t &, Int_t &, Int_t &, Int_t &,
82 Int_t &, Double_t &, Int_t &, Int_t &);
83 extern "C" void type_of_call pho_phist(Int_t &, Double_t &);
84 extern "C" void type_of_call dt_dtuout();
85 extern "C" void type_of_call dt_rndm(Int_t &);
86 extern "C" void type_of_call dt_rndmst(Int_t &, Int_t &, Int_t &, Int_t &);
87 extern "C" void type_of_call dt_rndmin(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
88 extern "C" void type_of_call dt_rndmou(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
89 extern "C" void type_of_call dpmjet_openinp();
98 //______________________________________________________________________________
100 TGenerator("dpmjet","dpmjet"),
116 // Default Constructor
119 //______________________________________________________________________________
120 TDPMjet::TDPMjet(DpmProcess_t iproc, Int_t Ip=208, Int_t Ipz=82, Int_t It=208, Int_t Itz=82,
121 Double_t Epn=2700., Double_t CMEn=5400.)
122 : TGenerator("dpmjet","dpmjet"),
138 printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
142 //______________________________________________________________________________
143 Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
146 // Default primary creation method. It reads the /HEPEVT/ common block which
147 // has been filled by the GenerateEvent method. If the event generator does
148 // not use the HEPEVT common block, This routine has to be overloaded by
150 // The function loops on the generated particles and store them in
151 // the TClonesArray pointed by the argument particles.
152 // The default action is to store only the stable particles
153 // This can be demanded explicitly by setting the option = "Final"
154 // If the option = "All", all the particles are stored.
156 if(particles==0) return 0;
157 TClonesArray &Particles = *particles;
159 Int_t numpart = 0; // Total number of produced particles
160 Int_t numStabpart = 0; // Total number of produced stable particles
161 Double_t entot = 0; // Total energy in final state (from stable particles)
163 numpart = DTEVT1.nhkk;
164 for(Int_t i=0; i<numpart; i++){
165 if(DTEVT1.isthkk[i]==1 || DTEVT1.isthkk[i]==-1 || DTEVT1.isthkk[i]==1001){
167 entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
170 //printf("\n TDPMjet: DPMJET stack contains %d particles", numpart);
171 // printf("\n TDPMjet: Final not decayed particles: %d", numStabpart);
172 //printf("\n TDPMjet: Total energy: %f GeV \n", entot);
175 if(!strcmp(option,"") || !strcmp(option,"Final")){
176 for (Int_t i=0; i < numpart; i++) {
178 if (DTEVT1.isthkk[i] == 1) {
180 // Use the common block values for the TParticle constructor
182 new(Particles[nump]) TParticle(
202 else if(!strcmp(option,"All")){
204 for (Int_t i=0; i <= numpart; i++){
206 // DTEVT1.JMOHKK[i][0] pointer to the entry of the 1st mother of entry i
207 Int_t iParent = DTEVT1.jmohkk[i][0] - 1;
210 TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
211 mother->SetLastDaughter(i);
212 if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
214 // --- PDGcode for residual nuclei (idhkk=80000)
215 // --- 10000*Z + 10*A
216 // --- DPMJET -> idres = mass #, idxres = charge
217 if(DTEVT1.idhkk[i] == 80000)
218 DTEVT1.idhkk[i] = 10000*DTEVT2.idxres[i]+10*DTEVT2.idres[i];
220 if(DTEVT2.idxres[i] != 0)
221 printf("\n pc#%d -> A = %d, Z = %d -> PDGcode = %d\n",
222 i,DTEVT2.idres[i],DTEVT2.idxres[i],DTEVT1.idhkk[i]);
224 new(Particles[i]) TParticle(
247 //====================== access to dpmjet subroutines =========================
248 //______________________________________________________________________________
249 void TDPMjet::Initialize()
252 // Write standard DPMJET input cards
254 FILE* out = fopen("dpmjet.inp","w");
255 // Projectile and Target definition
256 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.);
257 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.);
258 // Beam energy and crossing-angle
259 fprintf(out, "BEAM %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",fEpn, fEpn, 0., 0., 0., 0.);
261 fprintf(out, "CENTRAL %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
264 fprintf(out, "PARDECAY %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", 2., 0., 0., 0., 0., 0.);
267 fprintf(out, "PHOINPUT\n");
268 fprintf(out, "DEBUG 0 0 0 \n");
270 if (fProcess == kDpmMb) {
271 fprintf(out, "PROCESS 1 0 1 1 1 1 1 1\n");
272 } else if (fProcess == kDpmMbNonDiffr) {
273 fprintf(out, "PROCESS 1 0 1 1 0 0 0 1\n");
274 } else if (fProcess == kDpmDiffr) {
275 fprintf(out, "PROCESS 0 0 0 0 1 1 1 0\n");
276 }else if (fProcess == kDpmSingleDiffr) {
277 fprintf(out, "PROCESS 0 0 0 0 1 1 0 0\n");
278 }else if (fProcess == kDpmDoubleDiffr) {
279 fprintf(out, "PROCESS 0 0 0 0 0 0 1 0\n");
282 fprintf(out, "ENDINPUT\n");
285 fprintf(out, "START 1.0 0.0\n");
286 fprintf(out, "STOP\n");
291 // Call DPMJET initialisation
292 Int_t iemu = 0; // No emulsion (default)
293 Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
298 //______________________________________________________________________________
299 void TDPMjet::GenerateEvent()
301 // Generates one event;
303 DTEVNO.nevent=fNEvent;
307 Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
310 //______________________________________________________________________________
311 void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
312 int ntmass, int ntchar, int idp, int iemu)
314 // Call dmpjet routine DT_DTUINI passing the parameters
315 // in a way accepted by Fortran routines
318 printf("\n-------------------------------------------\n");
319 printf("\n Dt_Dtuini called with:\n\n");
320 printf(" Projectile -> A = %d, Z = %d \n",npmass, npchar);
321 printf(" Target -> A = %d, Z = %d \n",ntmass, ntchar);
322 printf(" Proj. LAB E -> E = %f GeV \n",epn);
323 printf(" nevts = %d, idp = %d, iemu = %d \n",nevts,idp,iemu);
324 printf("\n-------------------------------------------\n");
326 dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
330 //______________________________________________________________________________
331 void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
332 int idp, double elab, int kkmat, int irej)
334 // Call dmpjet routine DT_KKINC passing the parameters
335 // in a way accepted by Fortran routines
336 dt_kkinc(npmass, npchar, ntmass, ntchar, idp, elab, kkmat, irej);
339 //______________________________________________________________________________
340 void TDPMjet::Pho_Phist(int imode, double weight)
342 // Call dmpjet routine PHO_PHIST passing the parameters
343 // in a way accepted by Fortran routines
345 pho_phist(imode,weight);
349 //______________________________________________________________________________
350 void TDPMjet::Dt_Dtuout()
352 // Call dmpjet routine DT_DTUOT passing the parameters
353 // in a way accepted by Fortran routines
359 //______________________________________________________________________________
360 Int_t TDPMjet::GetEvNum() const
362 return DTEVT1.nevhkk;
364 //______________________________________________________________________________
365 Int_t TDPMjet::GetEntriesNum() const
369 //______________________________________________________________________________
370 Int_t TDPMjet::GetNumStablePc() const
372 Int_t NumStablePc = 0;
373 for(Int_t i=0; i<DTEVT1.nhkk; i++){
374 if(DTEVT1.isthkk[i] == 1) NumStablePc++;
379 //______________________________________________________________________________
380 Float_t TDPMjet::GetTotEnergy() const
382 Float_t TotEnergy = 0.;
383 for(Int_t i=0; i<DTEVT1.nhkk; i++){
384 if(DTEVT1.isthkk[i] == 1)
385 TotEnergy += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
390 //______________________________________________________________________________
391 Int_t TDPMjet::GetStatusCode(Int_t evnum) const
393 return DTEVT1.isthkk[evnum];
395 //______________________________________________________________________________
396 Int_t TDPMjet::GetPDGCode(Int_t evnum) const
398 return DTEVT1.idhkk[evnum];
400 //______________________________________________________________________________
401 Double_t TDPMjet::Getpx(Int_t evnum) const
403 return DTEVT1.phkk[evnum][0];
405 //______________________________________________________________________________
406 Double_t TDPMjet::Getpy(Int_t evnum) const
408 return DTEVT1.phkk[evnum][1];
410 //______________________________________________________________________________
411 Double_t TDPMjet::Getpz(Int_t evnum) const
413 return DTEVT1.phkk[evnum][2];
415 //______________________________________________________________________________
416 Double_t TDPMjet::GetEnergy(Int_t evnum) const
418 return DTEVT1.phkk[evnum][3];
420 //______________________________________________________________________________
421 Double_t TDPMjet::GetMass(Int_t evnum) const
423 return DTEVT1.phkk[evnum][4];
425 //______________________________________________________________________________
426 Int_t TDPMjet::GetFragmentA(Int_t evnum) const
428 return DTEVT2.idres[evnum];
430 //______________________________________________________________________________
431 Int_t TDPMjet::GetFragmentZ(Int_t evnum) const
433 return DTEVT2.idxres[evnum];
435 //______________________________________________________________________________
436 Double_t TDPMjet::GetXSFrac() const
438 return DTIMPA.xsfrac;
440 //______________________________________________________________________________
441 Double_t TDPMjet::GetBImpac() const
443 return DTGLCP.bimpac;
445 //______________________________________________________________________________
446 Double_t TDPMjet::GetProjRadius() const
450 //______________________________________________________________________________
451 Double_t TDPMjet::GetTargRadius() const
455 //______________________________________________________________________________
456 Int_t TDPMjet::GetProjWounded() const
458 return DTGLCP.nwasam;
460 //______________________________________________________________________________
461 Int_t TDPMjet::GetTargWounded() const
463 return DTGLCP.nwbsam;
465 //______________________________________________________________________________
466 Int_t TDPMjet::GetProjSpectators() const
468 return DTGLCP.nwtaac;
470 //______________________________________________________________________________
471 Int_t TDPMjet::GetTargSpectators() const
473 return DTGLCP.nwtbac;
475 //______________________________________________________________________________
476 Int_t TDPMjet::GetProcessCode() const
478 return POPRCS.iproce;
480 //______________________________________________________________________________
481 void TDPMjet::Dt_Rndm(int idummy)
486 //______________________________________________________________________________
487 void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
489 dt_rndmst(na1, na2, na3, nb1);
492 //______________________________________________________________________________
493 void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
495 dt_rndmin(u, c, cd, cm, i, j);
498 //______________________________________________________________________________
499 void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
501 dt_rndmou(u, c, cd, cm, i, j);