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"
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_
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
75 extern "C" void type_of_call dt_dtuini(Int_t & , Double_t &, Int_t & , Int_t &,
76 Int_t &, Int_t &, Int_t &, Int_t &);
77 extern "C" double type_of_call dt_getemu(Int_t &, Int_t &, Int_t &, Int_t &);
78 extern "C" void type_of_call dt_kkinc(Int_t &, Int_t &, Int_t &, Int_t &,
79 Int_t &, Double_t &, Int_t &, Int_t &);
80 extern "C" void type_of_call pho_phist(Int_t &, Double_t &);
81 extern "C" void type_of_call dt_dtuout();
82 extern "C" void type_of_call dt_rndm(Int_t &);
83 extern "C" void type_of_call dt_rndmst(Int_t &, Int_t &, Int_t &, Int_t &);
84 extern "C" void type_of_call dt_rndmin(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
85 extern "C" void type_of_call dt_rndmou(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
93 //______________________________________________________________________________
94 TDPMjet::TDPMjet() : TGenerator("dpmjet","dpmjet")
107 //______________________________________________________________________________
108 TDPMjet::TDPMjet(DpmProcess_t iproc, Int_t Ip=208, Int_t Ipz=82, Int_t It=208, Int_t Itz=82,
109 Double_t Epn=2700., Double_t CMEn=5400.)
110 : TGenerator("dpmjet","dpmjet")
112 printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
126 //______________________________________________________________________________
127 Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
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
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.
140 if(particles==0) return 0;
141 TClonesArray &Particles = *particles;
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)
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){
151 entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
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);
159 if(!strcmp(option,"") || !strcmp(option,"Final")){
160 for (Int_t i=0; i < numpart; i++) {
162 if (DTEVT1.isthkk[i] == 1) {
164 // Use the common block values for the TParticle constructor
166 new(Particles[nump]) TParticle(
186 else if(!strcmp(option,"All")){
188 for (Int_t i=0; i <= numpart; i++){
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;
194 TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
195 mother->SetLastDaughter(i);
196 if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
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];
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]);
208 new(Particles[i]) TParticle(
231 //====================== access to dpmjet subroutines =========================
232 //______________________________________________________________________________
233 void TDPMjet::Initialize()
236 // Write standard DPMJET input cards
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.);
245 fprintf(out, "CENTRAL %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
249 fprintf(out, "PHOINPUT\n");
250 fprintf(out, "DEBUG 0 0 0 \n");
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");
258 fprintf(out, "ENDINPUT\n");
261 fprintf(out, "START 1.0 0.0\n");
262 fprintf(out, "STOP\n");
265 // Call DPMJET initialisation
266 Int_t iemu = 0; // No emulsion (default)
267 Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
272 //______________________________________________________________________________
273 void TDPMjet::GenerateEvent()
275 // Generates one event;
277 DTEVNO.nevent=fNEvent;
281 Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
284 //______________________________________________________________________________
285 void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
286 int ntmass, int ntchar, int idp, int iemu)
288 // Call dmpjet routine DT_DTUINI passing the parameters
289 // in a way accepted by Fortran routines
292 printf("\n-------------------------------------------\n");
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);
298 printf("\n-------------------------------------------\n");
300 dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
304 //______________________________________________________________________________
305 void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
306 int idp, double elab, int kkmat, int irej)
308 // Call dmpjet routine DT_KKINC passing the parameters
309 // in a way accepted by Fortran routines
310 dt_kkinc(npmass, npchar, ntmass, ntchar, idp, elab, kkmat, irej);
313 //______________________________________________________________________________
314 void TDPMjet::Pho_Phist(int imode, double weight)
316 // Call dmpjet routine PHO_PHIST passing the parameters
317 // in a way accepted by Fortran routines
319 pho_phist(imode,weight);
323 //______________________________________________________________________________
324 void TDPMjet::Dt_Dtuout()
326 // Call dmpjet routine DT_DTUOT passing the parameters
327 // in a way accepted by Fortran routines
333 //______________________________________________________________________________
334 Int_t TDPMjet::GetEvNum() const
336 return DTEVT1.nevhkk;
338 //______________________________________________________________________________
339 Int_t TDPMjet::GetEntriesNum() const
343 //______________________________________________________________________________
344 Int_t TDPMjet::GetNumStablePc() const
346 Int_t NumStablePc = 0;
347 for(Int_t i=0; i<DTEVT1.nhkk; i++){
348 if(DTEVT1.isthkk[i] == 1) NumStablePc++;
353 //______________________________________________________________________________
354 Float_t TDPMjet::GetTotEnergy() const
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)
364 //______________________________________________________________________________
365 Int_t TDPMjet::GetStatusCode(Int_t evnum) const
367 return DTEVT1.isthkk[evnum];
369 //______________________________________________________________________________
370 Int_t TDPMjet::GetPDGCode(Int_t evnum) const
372 return DTEVT1.idhkk[evnum];
374 //______________________________________________________________________________
375 Double_t TDPMjet::Getpx(Int_t evnum) const
377 return DTEVT1.phkk[evnum][0];
379 //______________________________________________________________________________
380 Double_t TDPMjet::Getpy(Int_t evnum) const
382 return DTEVT1.phkk[evnum][1];
384 //______________________________________________________________________________
385 Double_t TDPMjet::Getpz(Int_t evnum) const
387 return DTEVT1.phkk[evnum][2];
389 //______________________________________________________________________________
390 Double_t TDPMjet::GetEnergy(Int_t evnum) const
392 return DTEVT1.phkk[evnum][3];
394 //______________________________________________________________________________
395 Double_t TDPMjet::GetMass(Int_t evnum) const
397 return DTEVT1.phkk[evnum][4];
399 //______________________________________________________________________________
400 Int_t TDPMjet::GetFragmentA(Int_t evnum) const
402 return DTEVT2.idres[evnum];
404 //______________________________________________________________________________
405 Int_t TDPMjet::GetFragmentZ(Int_t evnum) const
407 return DTEVT2.idxres[evnum];
409 //______________________________________________________________________________
410 Double_t TDPMjet::GetXSFrac() const
412 return DTIMPA.xsfrac;
414 //______________________________________________________________________________
415 Double_t TDPMjet::GetBImpac() const
417 return DTGLCP.bimpac;
419 //______________________________________________________________________________
420 Double_t TDPMjet::GetProjRadius() const
424 //______________________________________________________________________________
425 Double_t TDPMjet::GetTargRadius() const
429 //______________________________________________________________________________
430 Int_t TDPMjet::GetProjWounded() const
432 return DTGLCP.nwasam;
434 //______________________________________________________________________________
435 Int_t TDPMjet::GetTargWounded() const
437 return DTGLCP.nwbsam;
439 //______________________________________________________________________________
440 Int_t TDPMjet::GetProjSpectators() const
442 return DTGLCP.nwtaac;
444 //______________________________________________________________________________
445 Int_t TDPMjet::GetTargSpectators() const
447 return DTGLCP.nwtbac;
450 //______________________________________________________________________________
451 void TDPMjet::Dt_Rndm(int idummy)
456 //______________________________________________________________________________
457 void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
459 dt_rndmst(na1, na2, na3, nb1);
462 //______________________________________________________________________________
463 void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
465 dt_rndmin(u, c, cd, cm, i, j);
468 //______________________________________________________________________________
469 void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
471 dt_rndmou(u, c, cd, cm, i, j);