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         fDecayAll(0),
 115         fProcess(kDpmMb)
 116 {
 117 // Default Constructor
 118 }
 119
 120 //______________________________________________________________________________
 121 TDPMjet::TDPMjet(DpmProcess_t  iproc, Int_t Ip=208, Int_t Ipz=82, Int_t It=208, Int_t Itz=82,
 122                  Double_t Epn=2700., Double_t CMEn=5400.)
 123     : TGenerator("dpmjet","dpmjet"),
 124       fNEvent(0),
 125       fIp(Ip),
 126       fIpz(Ipz),
 127       fIt(It),
 128       fItz(Itz),
 129       fEpn(Epn),
 130       fPpn(0.),
 131       fCMEn(CMEn),
 132       fIdp(0),
 133       fBmin(0.),
 134       fBmax(0.),
 135       fFCentr(0),
 136       fPi0Decay(0),
 137       fDecayAll(0),
 138       fProcess(iproc)
 139 {
 140     printf("TDPMJet Constructor %d %d %d %d \n", Ip, Ipz, It, Itz);
 141 }
 142
 143
 144 //______________________________________________________________________________
 145 Int_t TDPMjet::ImportParticles(TClonesArray *particles, Option_t *option)
 146 {
 147 //
 148 //  Default primary creation method. It reads the /HEPEVT/ common block which
 149 //  has been filled by the GenerateEvent method. If the event generator does
 150 //  not use the HEPEVT common block, This routine has to be overloaded by
 151 //  the subclasses.
 152 //  The function loops on the generated particles and store them in
 153 //  the TClonesArray pointed by the argument particles.
 154 //  The default action is to store only the stable particles
 155 //  This can be demanded explicitly by setting the option = "Final"
 156 //  If the option = "All", all the particles are stored.
 157 //
 158   if(particles==0) return 0;
 159   TClonesArray &Particles = *particles;
 160   Particles.Clear();
 161   Int_t numpart = 0;     // Total number of produced particles
 162   Int_t numStabpart = 0; // Total number of produced stable particles
 163   Double_t entot = 0;    // Total energy in final state (from stable particles)
 164
 165   numpart = DTEVT1.nhkk;
 166   for(Int_t i=0; i<numpart; i++){
 167      if(DTEVT1.isthkk[i]==1 || DTEVT1.isthkk[i]==-1 || DTEVT1.isthkk[i]==1001){
 168         numStabpart++;
 169         entot += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
 170      }
 171   }
 172   //printf("\n TDPMjet: DPMJET stack contains %d particles", numpart);
 173   // printf("\n TDPMjet: Final not decayed particles: %d",    numStabpart);
 174   //printf("\n TDPMjet: Total energy: %f GeV          \n",   entot);
 175   Int_t nump = 0;
 176
 177   if(!strcmp(option,"") || !strcmp(option,"Final")){
 178       for (Int_t i=0; i < numpart; i++) {
 179
 180           if (DTEVT1.isthkk[i] == 1) {
 181            //
 182            //  Use the common block values for the TParticle constructor
 183            //
 184               new(Particles[nump]) TParticle(
 185                   DTEVT1.idhkk[i],
 186                   DTEVT1.isthkk[i],
 187                   -1,
 188                   -1,
 189                   -1,
 190                   -1,
 191                   DTEVT1.phkk[i][0],
 192                   DTEVT1.phkk[i][1],
 193                   DTEVT1.phkk[i][2],
 194                   DTEVT1.phkk[i][3],
 195
 196                   DTEVT1.vhkk[i][0],
 197                   DTEVT1.vhkk[i][1],
 198                   DTEVT1.vhkk[i][2],
 199                   DTEVT1.vhkk[i][3]);
 200               nump++;
 201           }
 202       }
 203   }
 204   else if(!strcmp(option,"All")){
 205       nump = numpart;
 206       for (Int_t i=0; i <= numpart; i++){
 207
 208           // DTEVT1.JMOHKK[i][0] pointer to the entry of the 1st mother of entry i
 209           Int_t iParent = DTEVT1.jmohkk[i][0] - 1;
 210
 211           if(iParent >= 0){
 212               TParticle *mother = (TParticle*) (Particles.UncheckedAt(iParent));
 213               mother->SetLastDaughter(i);
 214               if(mother->GetFirstDaughter() == -1) mother->SetFirstDaughter(i);
 215           }
 216           // --- PDGcode for residual nuclei (idhkk=80000)
 217           // ---        10000*Z + 10*A
 218           // --- DPMJET -> idres = mass #, idxres = charge
 219           if(DTEVT1.idhkk[i] == 80000)
 220               DTEVT1.idhkk[i] = 10000*DTEVT2.idxres[i]+10*DTEVT2.idres[i];
 221 /*
 222           if(DTEVT2.idxres[i] != 0)
 223               printf("\n        pc#%d -> A = %d, Z = %d -> PDGcode = %d\n",
 224                      i,DTEVT2.idres[i],DTEVT2.idxres[i],DTEVT1.idhkk[i]);
 225 */
 226           new(Particles[i]) TParticle(
 227               DTEVT1.idhkk[i],
 228               DTEVT1.isthkk[i],
 229               iParent,
 230               -1,
 231               -1,
 232               -1,
 233
 234               DTEVT1.phkk[i][0],
 235               DTEVT1.phkk[i][1],
 236               DTEVT1.phkk[i][2],
 237               DTEVT1.phkk[i][3],
 238
 239               DTEVT1.vhkk[i][0],
 240               DTEVT1.vhkk[i][1],
 241               DTEVT1.vhkk[i][2],
 242               DTEVT1.vhkk[i][3]);
 243       } // Particle loop
 244   }
 245   return nump;
 246 }
 247
 248
 249 //====================== access to dpmjet subroutines =========================
 250 //______________________________________________________________________________
 251 void TDPMjet::Initialize()
 252 {
 253 //
 254 //  Write standard DPMJET input cards
 255 //
 256     FILE* out = fopen("dpmjet.inp","w");
 257 //  Projectile and Target definition
 258     if (fIp == 1 && fIpz ==1) {
 259         fprintf(out, "PROJPAR                                                               PROTON\n");
 260     } else if (fIp == 1 && fIpz == -1) {
 261         fprintf(out, "PROJPAR                                                               APROTON\n");
 262     } else {
 263         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.);
 264     }
 265
 266     if (fIt == 1 && fItz ==1) {
 267         fprintf(out, "TARPAR                                                                PROTON\n");
 268     } else if (fIt == 1 && fItz == -1) {
 269         fprintf(out, "TARPAR                                                                APROTON\n");
 270     } else {
 271         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.);
 272     }
 273
 274 //  Beam energy and crossing-angle
 275     fprintf(out, "BEAM      %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",fEpn, fEpn, 0., 0., 0., 0.);
 276 //  Centrality
 277     if (fIp > 1. && fIt > 1)
 278         fprintf(out, "CENTRAL   %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n",-1., fBmin, fBmax, 0., 0., 0.);
 279 //  Particle decays
 280     if (fPi0Decay)
 281         fprintf(out, "PARDECAY  %10.1f%10.1f%10.1f%10.1f%10.1f%10.1f\n", 2., 0., 0., 0., 0., 0.);
 282
 283
 284 //
 285 //  PHOJET specific
 286     fprintf(out, "PHOINPUT\n");
 287     fprintf(out, "DEBUG      0 0 0 \n");
 288
 289     if (fProcess == kDpmMb) {
 290         fprintf(out, "PROCESS           1 0 1 1 1 1 1 1\n");
 291     } else if (fProcess == kDpmMbNonDiffr) {
 292         fprintf(out, "PROCESS           1 0 1 1 0 0 0 1\n");
 293     } else if (fProcess == kDpmDiffr) {
 294         fprintf(out, "PROCESS           0 0 0 0 1 1 1 0\n");
 295     }else if (fProcess == kDpmSingleDiffr) {
 296         fprintf(out, "PROCESS           0 0 0 0 1 1 0 0\n");
 297     }else if (fProcess == kDpmDoubleDiffr) {
 298         fprintf(out, "PROCESS           0 0 0 0 0 0 1 0\n");
 299     }
 300
 301     Int_t iPDG[19] =
 302         {
 303 //          K0s   pi0  lam   sig+  sig-  tet0
 304         310,  111, 3122, 3222, 3112, 3322,
 305 //          tet- om-    D+      D0     Ds+
 306         3312, 3334,  411,  421,  431,
 307 //          etac lamc+ sigc++ sigc+ sigc0 Ksic+
 308         441, 4122, 4222, 4212, 4112, 4232,
 309 //         Ksic0 sig0
 310         4132, 3212
 311         };
 312
 313
 314     Int_t iON = (fDecayAll) ? 1:0;
 315     for (Int_t i = 0; i < 19; i++) {
 316         fprintf(out, "LUND-DECAY%5d %5d\n",  iPDG[i], iON);
 317     }
 318
 319     fprintf(out, "LUND-MSTJ %5d %5d\n",   22, 1);
 320
 321     fprintf(out, "ENDINPUT\n");
 322 //
 323 //  START card
 324     fprintf(out, "START            1.0       0.0\n");
 325     fprintf(out, "STOP\n");
 326     fclose(out);
 327     dpmjet_openinp();
 328
 329 //
 330 //  Call DPMJET initialisation
 331     Int_t iemu = 0; // No emulsion (default)
 332     Dt_Dtuini(1, fEpn, fIp, fIpz, fIt, fItz, fIdp, iemu);
 333
 334 }
 335
 336
 337 //______________________________________________________________________________
 338 void TDPMjet::GenerateEvent()
 339 {
 340    // Generates one event;
 341    fNEvent++;
 342    DTEVNO.nevent=fNEvent;
 343    Int_t kkmat=-1;
 344    Float_t Elab = fEpn;
 345    Int_t irej=0;
 346    Dt_Kkinc(fIp, fIpz, fIt, fItz, fIdp, Elab, kkmat, irej);
 347    if(irej!=0) return;
 348 }
 349 //______________________________________________________________________________
 350 void TDPMjet::Dt_Dtuini(int nevts, double epn, int npmass, int npchar,
 351                         int ntmass, int ntchar, int idp, int iemu)
 352 {
 353   // Call dmpjet routine DT_DTUINI passing the parameters
 354   // in a way accepted by Fortran routines
 355
 356
 357    printf("\n-------------------------------------------\n");
 358    printf("\n           Dt_Dtuini called with:\n\n");
 359    printf(" Projectile  -> A = %d, Z = %d \n",npmass, npchar);
 360    printf(" Target      -> A = %d, Z = %d \n",ntmass, ntchar);
 361    printf(" Proj. LAB E -> E = %f GeV \n",epn);
 362    printf(" nevts = %d, idp = %d, iemu = %d \n",nevts,idp,iemu);
 363    printf("\n-------------------------------------------\n");
 364
 365    dt_dtuini(nevts, epn, npmass, npchar, ntmass, ntchar, idp, iemu);
 366
 367 }
 368
 369 //______________________________________________________________________________
 370 void TDPMjet::Dt_Kkinc(int npmass, int npchar, int ntmass, int ntchar,
 371                        int idp, double elab, int kkmat, int irej)
 372 {
 373   // Call dmpjet routine DT_KKINC passing the parameters
 374   // in a way accepted by Fortran routines
 375   dt_kkinc(npmass, npchar, ntmass, ntchar, idp, elab, kkmat, irej);
 376 }
 377
 378 //______________________________________________________________________________
 379 void TDPMjet::Pho_Phist(int imode, double weight)
 380 {
 381   // Call dmpjet routine PHO_PHIST passing the parameters
 382   // in a way accepted by Fortran routines
 383
 384   pho_phist(imode,weight);
 385
 386 }
 387
 388 //______________________________________________________________________________
 389 void TDPMjet::Dt_Dtuout()
 390 {
 391   // Call dmpjet routine DT_DTUOT passing the parameters
 392   // in a way accepted by Fortran routines
 393
 394   dt_dtuout();
 395
 396 }
 397
 398 //______________________________________________________________________________
 399 Int_t TDPMjet::GetEvNum() const
 400 {
 401         return DTEVT1.nevhkk;
 402 }
 403 //______________________________________________________________________________
 404 Int_t TDPMjet::GetEntriesNum() const
 405 {
 406         return DTEVT1.nhkk;
 407 }
 408 //______________________________________________________________________________
 409 Int_t TDPMjet::GetNumStablePc() const
 410 {
 411         Int_t NumStablePc = 0;
 412         for(Int_t i=0; i<DTEVT1.nhkk; i++){
 413            if(DTEVT1.isthkk[i] == 1) NumStablePc++;
 414         }
 415         return NumStablePc;
 416 }
 417
 418 //______________________________________________________________________________
 419 Float_t TDPMjet::GetTotEnergy() const
 420 {
 421         Float_t TotEnergy = 0.;
 422         for(Int_t i=0; i<DTEVT1.nhkk; i++){
 423           if(DTEVT1.isthkk[i] == 1)
 424             TotEnergy += DTEVT1.phkk[i][3]; // PHKK[i][3] <-> PHKK(4,i)
 425         }
 426         return TotEnergy;
 427 }
 428
 429 //______________________________________________________________________________
 430 Int_t TDPMjet::GetStatusCode(Int_t evnum) const
 431 {
 432         return DTEVT1.isthkk[evnum];
 433 }
 434 //______________________________________________________________________________
 435 Int_t TDPMjet::GetPDGCode(Int_t evnum) const
 436 {
 437         return DTEVT1.idhkk[evnum];
 438 }
 439 //______________________________________________________________________________
 440 Double_t TDPMjet::Getpx(Int_t evnum) const
 441 {
 442         return DTEVT1.phkk[evnum][0];
 443 }
 444 //______________________________________________________________________________
 445 Double_t TDPMjet::Getpy(Int_t evnum) const
 446 {
 447         return DTEVT1.phkk[evnum][1];
 448 }
 449 //______________________________________________________________________________
 450 Double_t TDPMjet::Getpz(Int_t evnum) const
 451 {
 452         return DTEVT1.phkk[evnum][2];
 453 }
 454 //______________________________________________________________________________
 455 Double_t TDPMjet::GetEnergy(Int_t evnum) const
 456 {
 457         return DTEVT1.phkk[evnum][3];
 458 }
 459 //______________________________________________________________________________
 460 Double_t TDPMjet::GetMass(Int_t evnum) const
 461 {
 462         return DTEVT1.phkk[evnum][4];
 463 }
 464 //______________________________________________________________________________
 465 Int_t    TDPMjet::GetFragmentA(Int_t evnum) const
 466 {
 467         return DTEVT2.idres[evnum];
 468 }
 469 //______________________________________________________________________________
 470 Int_t    TDPMjet::GetFragmentZ(Int_t evnum) const
 471 {
 472         return DTEVT2.idxres[evnum];
 473 }
 474 //______________________________________________________________________________
 475 Double_t TDPMjet::GetXSFrac() const
 476 {
 477         return DTIMPA.xsfrac;
 478 }
 479 //______________________________________________________________________________
 480 Double_t TDPMjet::GetBImpac() const
 481 {
 482         return DTGLCP.bimpac;
 483 }
 484 //______________________________________________________________________________
 485 Double_t TDPMjet::GetProjRadius() const
 486 {
 487         return DTGLCP.rproj;
 488 }
 489 //______________________________________________________________________________
 490 Double_t TDPMjet::GetTargRadius() const
 491 {
 492         return DTGLCP.rtarg;
 493 }
 494 //______________________________________________________________________________
 495 Int_t TDPMjet::GetProjWounded() const
 496 {
 497         return DTGLCP.nwasam;
 498 }
 499 //______________________________________________________________________________
 500 Int_t TDPMjet::GetTargWounded() const
 501 {
 502         return DTGLCP.nwbsam;
 503 }
 504 //______________________________________________________________________________
 505 Int_t TDPMjet::GetProjSpectators() const
 506 {
 507         return DTGLCP.nwtaac;
 508 }
 509 //______________________________________________________________________________
 510 Int_t TDPMjet::GetTargSpectators() const
 511 {
 512         return DTGLCP.nwtbac;
 513 }
 514 //______________________________________________________________________________
 515 Int_t TDPMjet::GetProcessCode() const
 516 {
 517                 return POPRCS.iproce;
 518 }
 519 //______________________________________________________________________________
 520 void TDPMjet::Dt_Rndm(int idummy)
 521 {
 522         dt_rndm(idummy);
 523 }
 524
 525 //______________________________________________________________________________
 526 void TDPMjet::Dt_Rndmst(int na1, int na2, int na3, int nb1)
 527 {
 528         dt_rndmst(na1, na2, na3, nb1);
 529 }
 530
 531 //______________________________________________________________________________
 532 void TDPMjet::Dt_Rndmin(int u, int c, int cd, int cm, int i, int j)
 533 {
 534         dt_rndmin(u, c, cd, cm, i, j);
 535 }
 536
 537 //______________________________________________________________________________
 538 void TDPMjet::Dt_Rndmou(int u, int c, int cd, int cm, int i, int j)
 539 {
 540         dt_rndmou(u, c, cd, cm, i, j);
 541 }
 542