TDPMjet/TDPMjet.cxx

   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 #include "TClonesArray.h"
  45 //*KEND.
  46
  47 //*KEEP,TROOT.
  48 #include "TROOT.h"
  49 //*KEND.
  50
  51 #ifndef WIN32
  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_
  62 # define type_of_call
  63 #else
  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
  75 #endif
  76
  77 #ifndef WIN32
  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();
  90
  91 #else
  92
  93 #endif
  94
  95 ClassImp(TDPMjet)
  96
  97
  98 //______________________________________________________________________________
  99     TDPMjet::TDPMjet() :
 100         TGenerator("dpmjet","dpmjet"),
 101         fNEvent(0),
 102         fIp(0),
 103         fIpz(0),
 104         fIt(0),
 105         fItz(0),
 106         fEpn(0.),
 107         fPpn(0.),
 108         fCMEn(0.),
 109         fIdp(0),
 110         fBmin(0.),
 111         fBmax(0.),
 112         fFCentr(0),
 113         fPi0Decay(0),
 114         fProcess(kDpmMb)
 115 {
 116 // Default Constructor
 117 }
 118
 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"),
 123       fNEvent(0),
 124       fIp(Ip),
 125       fIpz(Ipz),
 126       fIt(It),
 127       fItz(Itz),
 128       fEpn(Epn),
 129       fPpn(0.),
 130       fCMEn(CMEn),
 131       fIdp(0),
 132       fBmin(0.),
 133       fBmax(0.),
 134       fFCentr(0),
 135       fPi0Decay(0),
 136       fProcess(iproc)
 137 {
 138     printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
 139 }
 140
 141
 142 //______________________________________________________________________________
 143 Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
 144 {
 145 //
 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
 149 //  the subclasses.
 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.
 155 //
 156   if(particles==0) return 0;
 157   TClonesArray &Particles = *particles;
 158   Particles.Clear();
 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)
 162
 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){
 166         numStabpart++;
 167         entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
 168      }
 169   }
 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);
 173   Int_t nump = 0;
 174
 175   if(!strcmp(option,"") || !strcmp(option,"Final")){
 176       for (Int_t i=0; i < numpart; i++) {
 177
 178           if (DTEVT1.isthkk[i] == 1) {
 179            //
 180            //  Use the common block values for the TParticle constructor
 181            //
 182               new(Particles[nump]) TParticle(
 183                   DTEVT1.idhkk[i],
 184                   DTEVT1.isthkk[i],
 185                   -1,
 186                   -1,
 187                   -1,
 188                   -1,
 189                   DTEVT1.phkk[i][0],
 190                   DTEVT1.phkk[i][1],
 191                   DTEVT1.phkk[i][2],
 192                   DTEVT1.phkk[i][3],
 193
 194                   DTEVT1.vhkk[i][0],
 195                   DTEVT1.vhkk[i][1],
 196                   DTEVT1.vhkk[i][2],
 197                   DTEVT1.vhkk[i][3]);
 198               nump++;
 199           }
 200       }
 201   }
 202   else if(!strcmp(option,"All")){
 203       nump = numpart;
 204       for (Int_t i=0; i <= numpart; i++){
 205
 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;
 208
 209           if(iParent >= 0){
 210               TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
 211               mother->SetLastDaughter(i);
 212               if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
 213           }
 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];
 219 /*
 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]);
 223 */
 224           new(Particles[i]) TParticle(
 225               DTEVT1.idhkk[i],
 226               DTEVT1.isthkk[i],
 227               iParent,
 228               -1,
 229               -1,
 230               -1,
 231
 232               DTEVT1.phkk[i][0],
 233               DTEVT1.phkk[i][1],
 234               DTEVT1.phkk[i][2],
 235               DTEVT1.phkk[i][3],
 236
 237               DTEVT1.vhkk[i][0],
 238               DTEVT1.vhkk[i][1],
 239               DTEVT1.vhkk[i][2],
 240               DTEVT1.vhkk[i][3]);
 241       } // Particle loop
 242   }
 243   return nump;
 244 }
 245
 246
 247 //====================== access to dpmjet subroutines =========================
 248 //______________________________________________________________________________
 249 void TDPMjet::Initialize()
 250 {
 251 //
 252 //  Write standard DPMJET input cards
 253 //
 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.);
 260 //  Centrality
 261     fprintf(out, "CENTRAL   %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
 262 //  Particle decays
 263     if (fPi0Decay)
 264     fprintf(out, "PARDECAY  %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", 2., 0., 0., 0., 0., 0.);
 265 //
 266 //  PHOJET specific
 267     fprintf(out, "PHOINPUT\n");
 268     fprintf(out, "DEBUG      0 0 0 \n");
 269
 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");
 280     }
 281
 282     fprintf(out, "ENDINPUT\n");
 283 //
 284 //  START card
 285     fprintf(out, "START            1.0       0.0\n");
 286     fprintf(out, "STOP\n");
 287     fclose(out);
 288     dpmjet_openinp();
 289
 290 //
 291 //  Call DPMJET initialisation
 292     Int_t iemu = 0; // No emulsion (default)
 293     Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
 294
 295 }
 296
 297
 298 //______________________________________________________________________________
 299 void TDPMjet::GenerateEvent()
 300 {
 301    // Generates one event;
 302    fNEvent++;
 303    DTEVNO.nevent=fNEvent;
 304    Int_t kkmat=-1;
 305    Float_t Elab = fEpn;
 306    Int_t irej=0;
 307    Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
 308    if(irej!=0) return;
 309 }
 310 //______________________________________________________________________________
 311 void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
 312                         int ntmass, int ntchar, int idp, int iemu)
 313 {
 314   // Call dmpjet routine DT_DTUINI passing the parameters
 315   // in a way accepted by Fortran routines
 316
 317
 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");
 325
 326    dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
 327
 328 }
 329
 330 //______________________________________________________________________________
 331 void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
 332                        int idp, double elab, int kkmat, int irej)
 333 {
 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);
 337 }
 338
 339 //______________________________________________________________________________
 340 void TDPMjet::Pho_Phist(int imode, double weight)
 341 {
 342   // Call dmpjet routine PHO_PHIST passing the parameters
 343   // in a way accepted by Fortran routines
 344
 345   pho_phist(imode,weight);
 346
 347 }
 348
 349 //______________________________________________________________________________
 350 void TDPMjet::Dt_Dtuout()
 351 {
 352   // Call dmpjet routine DT_DTUOT passing the parameters
 353   // in a way accepted by Fortran routines
 354
 355   dt_dtuout();
 356
 357 }
 358
 359 //______________________________________________________________________________
 360 Int_t TDPMjet::GetEvNum() const
 361 {
 362         return DTEVT1.nevhkk;
 363 }
 364 //______________________________________________________________________________
 365 Int_t TDPMjet::GetEntriesNum() const
 366 {
 367         return DTEVT1.nhkk;
 368 }
 369 //______________________________________________________________________________
 370 Int_t TDPMjet::GetNumStablePc() const
 371 {
 372         Int_t NumStablePc = 0;
 373         for(Int_t i=0; i<DTEVT1.nhkk; i++){
 374            if(DTEVT1.isthkk[i] == 1) NumStablePc++;
 375         }
 376         return NumStablePc;
 377 }
 378
 379 //______________________________________________________________________________
 380 Float_t TDPMjet::GetTotEnergy() const
 381 {
 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)
 386         }
 387         return TotEnergy;
 388 }
 389
 390 //______________________________________________________________________________
 391 Int_t TDPMjet::GetStatusCode(Int_t evnum) const
 392 {
 393         return DTEVT1.isthkk[evnum];
 394 }
 395 //______________________________________________________________________________
 396 Int_t TDPMjet::GetPDGCode(Int_t evnum) const
 397 {
 398         return DTEVT1.idhkk[evnum];
 399 }
 400 //______________________________________________________________________________
 401 Double_t TDPMjet::Getpx(Int_t evnum) const
 402 {
 403         return DTEVT1.phkk[evnum][0];
 404 }
 405 //______________________________________________________________________________
 406 Double_t TDPMjet::Getpy(Int_t evnum) const
 407 {
 408         return DTEVT1.phkk[evnum][1];
 409 }
 410 //______________________________________________________________________________
 411 Double_t TDPMjet::Getpz(Int_t evnum) const
 412 {
 413         return DTEVT1.phkk[evnum][2];
 414 }
 415 //______________________________________________________________________________
 416 Double_t TDPMjet::GetEnergy(Int_t evnum) const
 417 {
 418         return DTEVT1.phkk[evnum][3];
 419 }
 420 //______________________________________________________________________________
 421 Double_t TDPMjet::GetMass(Int_t evnum) const
 422 {
 423         return DTEVT1.phkk[evnum][4];
 424 }
 425 //______________________________________________________________________________
 426 Int_t    TDPMjet::GetFragmentA(Int_t evnum) const
 427 {
 428         return DTEVT2.idres[evnum];
 429 }
 430 //______________________________________________________________________________
 431 Int_t    TDPMjet::GetFragmentZ(Int_t evnum) const
 432 {
 433         return DTEVT2.idxres[evnum];
 434 }
 435 //______________________________________________________________________________
 436 Double_t TDPMjet::GetXSFrac() const
 437 {
 438         return DTIMPA.xsfrac;
 439 }
 440 //______________________________________________________________________________
 441 Double_t TDPMjet::GetBImpac() const
 442 {
 443         return DTGLCP.bimpac;
 444 }
 445 //______________________________________________________________________________
 446 Double_t TDPMjet::GetProjRadius() const
 447 {
 448         return DTGLCP.rproj;
 449 }
 450 //______________________________________________________________________________
 451 Double_t TDPMjet::GetTargRadius() const
 452 {
 453         return DTGLCP.rtarg;
 454 }
 455 //______________________________________________________________________________
 456 Int_t TDPMjet::GetProjWounded() const
 457 {
 458         return DTGLCP.nwasam;
 459 }
 460 //______________________________________________________________________________
 461 Int_t TDPMjet::GetTargWounded() const
 462 {
 463         return DTGLCP.nwbsam;
 464 }
 465 //______________________________________________________________________________
 466 Int_t TDPMjet::GetProjSpectators() const
 467 {
 468         return DTGLCP.nwtaac;
 469 }
 470 //______________________________________________________________________________
 471 Int_t TDPMjet::GetTargSpectators() const
 472 {
 473         return DTGLCP.nwtbac;
 474 }
 475 //______________________________________________________________________________
 476 Int_t TDPMjet::GetProcessCode() const
 477 {
 478                 return POPRCS.iproce;
 479 }
 480 //______________________________________________________________________________
 481 void TDPMjet::Dt_Rndm(int idummy)
 482 {
 483         dt_rndm(idummy);
 484 }
 485
 486 //______________________________________________________________________________
 487 void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
 488 {
 489         dt_rndmst(na1, na2, na3, nb1);
 490 }
 491
 492 //______________________________________________________________________________
 493 void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
 494 {
 495         dt_rndmin(u, c, cd, cm, i, j);
 496 }
 497
 498 //______________________________________________________________________________
 499 void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
 500 {
 501         dt_rndmou(u, c, cd, cm, i, j);
 502 }
 503