THerwig/THerwig6.cxx

   1 // definition of c++ Class THerwig6 to be used in ROOT
   2 // this is a c++ interface to the F77 Herwig6 program
   3 // author: j. g. contreras jgcn@moni.mda.cinvestav.mx
   4 // date: december 22, 2000
   5 //  Class THerwig6 is an interface to the Herwig program
   6 //
   7 // C-----------------------------------------------------------------------
   8 // C                           H E R W I G
   9 // C
  10 // C            a Monte Carlo event generator for simulating
  11 // C        +---------------------------------------------------+
  12 // C        | Hadron Emission Reactions With Interfering Gluons |
  13 // C        +---------------------------------------------------+
  14 // C I.G. Knowles(*), G. Marchesini(+), M.H. Seymour($) and B.R. Webber(#)
  15 // C-----------------------------------------------------------------------
  16 // C with Minimal Supersymmetric Standard Model Matrix Elements by
  17 // C                  S. Moretti($) and K. Odagiri($)
  18 // C-----------------------------------------------------------------------
  19 // C R parity violating Supersymmetric Decays and Matrix Elements by
  20 // C                          P. Richardson(&)
  21 // C-----------------------------------------------------------------------
  22 // C matrix element corrections to top decay and Drell-Yan type processes
  23 // C                         by G. Corcella(+)
  24 // C-----------------------------------------------------------------------
  25 // C Deep Inelastic Scattering and Heavy Flavour Electroproduction by
  26 // C                  G. Abbiendi(@) and L. Stanco(%)
  27 // C-----------------------------------------------------------------------
  28 // C and Jet Photoproduction in Lepton-Hadron Collisions by J. Chyla(~)
  29 // C-----------------------------------------------------------------------
  30 // C(*)  Department of Physics & Astronomy, University of Edinburgh
  31 // C(+)  Dipartimento di Fisica, Universita di Milano
  32 // C($)  Rutherford Appleton Laboratory
  33 // C(#)  Cavendish Laboratory, Cambridge
  34 // C(&)  Department of Physics, University of Oxford
  35 // C(@)  Dipartimento di Fisica, Universita di Bologna
  36 // C(%)  Dipartimento di Fisica, Universita di Padova
  37 // C(~)  Institute of Physics, Prague
  38 // C-----------------------------------------------------------------------
  39 // C                  Version 6.100 - 16th December 1999
  40 // C-----------------------------------------------------------------------
  41 // C Main reference:
  42 // C    G.Marchesini,  B.R.Webber,  G.Abbiendi,  I.G.Knowles,  M.H.Seymour,
  43 // C    and L.Stanco, Computer Physics Communications 67 (1992) 465.
  44 // C-----------------------------------------------------------------------
  45 // C Please send e-mail about  this program  to one of the  authors at the
  46 // C following Internet addresses:
  47 // C    I.Knowles@ed.ac.uk        Giuseppe.Marchesini@mi.infn.it
  48 // C    M.Seymour@rl.ac.uk        webber@hep.phy.cam.ac.uk
  49 // C-----------------------------------------------------------------------
  50
  51
  52 #include "THerwig6.h"
  53 #include "TClonesArray.h"
  54 #include "TParticle.h"
  55 #include "TObjArray.h"
  56
  57
  58 ClassImp(THerwig6)
  59
  60 extern "C" {
  61   void*  herwig6_common_block_address_(char*, int len);
  62   void   herwig6_open_fortran_file_ (int* lun, char* name, int);
  63   void   herwig6_close_fortran_file_(int* lun);
  64 }
  65
  66
  67 THerwig6::THerwig6() : TGenerator("Herwig6","Herwig6"),
  68   fHepevt((Hepevt_t*) herwig6_common_block_address_((char*)"HEPEVT",6)),
  69   fHwbeam((Hwbeam_t*) herwig6_common_block_address_((char*)"HWBEAM",6)),
  70   fHwbmch((Hwbmch_t*) herwig6_common_block_address_((char*)"HWBMCH",6)),
  71   fHwproc((Hwproc_t*) herwig6_common_block_address_((char*)"HWPROC",6)),
  72   fHwpram((Hwpram_t*) herwig6_common_block_address_((char*)"HWPRAM",6)),
  73   fHwprch((Hwprch_t*) herwig6_common_block_address_((char*)"HWPRCH",6)),
  74   fHwpart((Hwpart_t*) herwig6_common_block_address_((char*)"HWPART",6)),
  75   fHwparp((Hwparp_t*) herwig6_common_block_address_((char*)"HWPARP",6)),
  76   fHwbosc((Hwbosc_t*) herwig6_common_block_address_((char*)"HWBOSC",6)),
  77   fHwparc((Hwparc_t*) herwig6_common_block_address_((char*)"HWPARC",6)),
  78   fHwbrch((Hwbrch_t*) herwig6_common_block_address_((char*)"HWBRCH",6)),
  79   fHwevnt((Hwevnt_t*) herwig6_common_block_address_((char*)"HWEVNT",6)),
  80   fHwhard((Hwhard_t*) herwig6_common_block_address_((char*)"HWHARD",6)),
  81   fHwprop((Hwprop_t*) herwig6_common_block_address_((char*)"HWPROP",6)),
  82   fHwunam((Hwunam_t*) herwig6_common_block_address_((char*)"HWUNAM",6)),
  83   fHwupdt((Hwupdt_t*) herwig6_common_block_address_((char*)"HWUPDT",6)),
  84   fHwuwts((Hwuwts_t*) herwig6_common_block_address_((char*)"HWUWTS",6)),
  85   fHwuclu((Hwuclu_t*) herwig6_common_block_address_((char*)"HWUCLU",6)),
  86   fHwdist((Hwdist_t*) herwig6_common_block_address_((char*)"HWDIST",6)),
  87   fHwqdks((Hwqdks_t*) herwig6_common_block_address_((char*)"HWQDKS",6)),
  88   fHwusud((Hwusud_t*) herwig6_common_block_address_((char*)"HWUSUD",6)),
  89   fHwsusy((Hwsusy_t*) herwig6_common_block_address_((char*)"HWSUSY",6)),
  90   fHwrpar((Hwrpar_t*) herwig6_common_block_address_((char*)"HWRPAR",6)),
  91   fHwminb((Hwminb_t*) herwig6_common_block_address_((char*)"HWMINB",6)),
  92   fHwclus((Hwclus_t*) herwig6_common_block_address_((char*)"HWCLUS",6)),
  93   fHwgrav((Hwgrav_t*) herwig6_common_block_address_((char*)"HWGRAV",6)),
  94   fHw6202((Hw6202_t*) herwig6_common_block_address_((char*)"HW6202",6)),
  95   fHw6203((Hw6203_t*) herwig6_common_block_address_((char*)"HW6203",6)),
  96   fHw6300((Hw6300_t*) herwig6_common_block_address_((char*)"HW6300",6)),
  97   fHwpmrs((Hwpmrs_t*) herwig6_common_block_address_((char*)"HWPMRS",6)),
  98   fHwcirc((Hwcirc_t*) herwig6_common_block_address_((char*)"HWCIRC",6)),
  99   fHwdspb((Hwdspb_t*) herwig6_common_block_address_((char*)"HWDSPB",6)),
 100   fHwdsp2((Hwdsp2_t*) herwig6_common_block_address_((char*)"HWDSP2",6)),
 101   fHwdsp3((Hwdsp3_t*) herwig6_common_block_address_((char*)"HWDSP3",6)),
 102   fHwdsp4((Hwdsp4_t*) herwig6_common_block_address_((char*)"HWDSP4",6)),
 103   fHwdspn((Hwdspn_t*) herwig6_common_block_address_((char*)"HWDSPN",6)),
 104   fHwspin((Hwspin_t*) herwig6_common_block_address_((char*)"HWSPIN",6)),
 105   fHwstau((Hwstau_t*) herwig6_common_block_address_((char*)"HWSTAU",6)),
 106   fHwgupr((Hwgupr_t*) herwig6_common_block_address_((char*)"HWGUPR",6)),
 107   fHw6500((Hw6500_t*) herwig6_common_block_address_((char*)"HW6500",6)),
 108   fHw6504((Hw6504_t*) herwig6_common_block_address_((char*)"HW6504",6)),
 109   fHw6506((Hw6506_t*) herwig6_common_block_address_((char*)"HW6506",6))
 110 {
 111
 112 // THerwig6 constructor: creates a TClonesArray in which it will store all
 113 // particles. Note that there may be only one functional THerwig6 object
 114 // at a time, so it's not use to create more than one instance of it.
 115
 116   delete fParticles; // was allocated as TObjArray in TGenerator
 117   fParticles = new TClonesArray("TParticle",50);
 118
 119   // initialize common-blocks
 120  }
 121
 122 THerwig6::THerwig6(const THerwig6 & source): TGenerator(source),
 123   fHepevt((Hepevt_t*) herwig6_common_block_address_((char*)"HEPEVT",6)),
 124   fHwbeam((Hwbeam_t*) herwig6_common_block_address_((char*)"HWBEAM",6)),
 125   fHwbmch((Hwbmch_t*) herwig6_common_block_address_((char*)"HWBMCH",6)),
 126   fHwproc((Hwproc_t*) herwig6_common_block_address_((char*)"HWPROC",6)),
 127   fHwpram((Hwpram_t*) herwig6_common_block_address_((char*)"HWPRAM",6)),
 128   fHwprch((Hwprch_t*) herwig6_common_block_address_((char*)"HWPRCH",6)),
 129   fHwpart((Hwpart_t*) herwig6_common_block_address_((char*)"HWPART",6)),
 130   fHwparp((Hwparp_t*) herwig6_common_block_address_((char*)"HWPARP",6)),
 131   fHwbosc((Hwbosc_t*) herwig6_common_block_address_((char*)"HWBOSC",6)),
 132   fHwparc((Hwparc_t*) herwig6_common_block_address_((char*)"HWPARC",6)),
 133   fHwbrch((Hwbrch_t*) herwig6_common_block_address_((char*)"HWBRCH",6)),
 134   fHwevnt((Hwevnt_t*) herwig6_common_block_address_((char*)"HWEVNT",6)),
 135   fHwhard((Hwhard_t*) herwig6_common_block_address_((char*)"HWHARD",6)),
 136   fHwprop((Hwprop_t*) herwig6_common_block_address_((char*)"HWPROP",6)),
 137   fHwunam((Hwunam_t*) herwig6_common_block_address_((char*)"HWUNAM",6)),
 138   fHwupdt((Hwupdt_t*) herwig6_common_block_address_((char*)"HWUPDT",6)),
 139   fHwuwts((Hwuwts_t*) herwig6_common_block_address_((char*)"HWUWTS",6)),
 140   fHwuclu((Hwuclu_t*) herwig6_common_block_address_((char*)"HWUCLU",6)),
 141   fHwdist((Hwdist_t*) herwig6_common_block_address_((char*)"HWDIST",6)),
 142   fHwqdks((Hwqdks_t*) herwig6_common_block_address_((char*)"HWQDKS",6)),
 143   fHwusud((Hwusud_t*) herwig6_common_block_address_((char*)"HWUSUD",6)),
 144   fHwsusy((Hwsusy_t*) herwig6_common_block_address_((char*)"HWSUSY",6)),
 145   fHwrpar((Hwrpar_t*) herwig6_common_block_address_((char*)"HWRPAR",6)),
 146   fHwminb((Hwminb_t*) herwig6_common_block_address_((char*)"HWMINB",6)),
 147   fHwclus((Hwclus_t*) herwig6_common_block_address_((char*)"HWCLUS",6)),
 148   fHwgrav((Hwgrav_t*) herwig6_common_block_address_((char*)"HWGRAV",6)),
 149   fHw6202((Hw6202_t*) herwig6_common_block_address_((char*)"HW6202",6)),
 150   fHw6203((Hw6203_t*) herwig6_common_block_address_((char*)"HW6203",6)),
 151   fHw6300((Hw6300_t*) herwig6_common_block_address_((char*)"HW6300",6)),
 152   fHwpmrs((Hwpmrs_t*) herwig6_common_block_address_((char*)"HWPMRS",6)),
 153   fHwcirc((Hwcirc_t*) herwig6_common_block_address_((char*)"HWCIRC",6)),
 154   fHwdspb((Hwdspb_t*) herwig6_common_block_address_((char*)"HWDSPB",6)),
 155   fHwdsp2((Hwdsp2_t*) herwig6_common_block_address_((char*)"HWDSP2",6)),
 156   fHwdsp3((Hwdsp3_t*) herwig6_common_block_address_((char*)"HWDSP3",6)),
 157   fHwdsp4((Hwdsp4_t*) herwig6_common_block_address_((char*)"HWDSP4",6)),
 158   fHwdspn((Hwdspn_t*) herwig6_common_block_address_((char*)"HWDSPN",6)),
 159   fHwspin((Hwspin_t*) herwig6_common_block_address_((char*)"HWSPIN",6)),
 160   fHwstau((Hwstau_t*) herwig6_common_block_address_((char*)"HWSTAU",6)),
 161   fHwgupr((Hwgupr_t*) herwig6_common_block_address_((char*)"HWGUPR",6)),
 162   fHw6500((Hw6500_t*) herwig6_common_block_address_((char*)"HW6500",6)),
 163   fHw6504((Hw6504_t*) herwig6_common_block_address_((char*)"HW6504",6)),
 164   fHw6506((Hw6506_t*) herwig6_common_block_address_((char*)"HW6506",6))
 165 {
 166     Fatal("THerwig6","Copy constructor not implemented yet");
 167 }
 168 //------------------------------------------------------------------------------
 169  THerwig6::~THerwig6()
 170  {
 171    // Destructor. The data members of TGenerator are delete by itself
 172  }
 173
 174 //______________________________________________________________________________
 175 void THerwig6::GenerateEvent()
 176 {
 177
 178   //initialize event
 179   hwuine_();
 180   // generate hard subprocess
 181   hwepro_();
 182   // generate parton cascades
 183   hwbgen_();
 184   // do heavy objects decay
 185   hwdhob_();
 186   // do cluster formation
 187   hwcfor_();
 188   // do cluster decays
 189   hwcdec_();
 190   // do unstable particle decays
 191   hwdhad_();
 192   // do heavy flavor hadrons decay
 193   hwdhvy_();
 194   // add soft underlying event
 195   hwmevt_();
 196   // finish event
 197   hwufne_();
 198 }
 199
 200 //______________________________________________________________________________
 201 void THerwig6::OpenFortranFile(int lun, char* name) {
 202   herwig6_open_fortran_file_(&lun, name, strlen(name));
 203 }
 204
 205 //______________________________________________________________________________
 206 void THerwig6::CloseFortranFile(int lun) {
 207   herwig6_close_fortran_file_(&lun);
 208 }
 209
 210 void THerwig6::Initialize(const char *beam, const char *target, double pbeam1, double pbeam2, int iproc)
 211
 212 {
 213   // perform the initialization for Herwig6
 214   // sets correct title.
 215   // after calling this method all parameters are set to their default
 216   // values. If you want to modify any parameter you have to set the new
 217   // value after calling Initialize and before PrepareRun.
 218
 219    char  cbeam[8];
 220    strncpy(cbeam,beam,8);
 221    char  ctarget[8];
 222    strncpy(ctarget,target,8);
 223    printf("\n Initializing Herwig !! \n");
 224    if ( (!strncmp(beam, "E+"    ,2)) &&
 225         (!strncmp(beam, "E-"    ,2)) &&
 226         (!strncmp(beam, "MU+"   ,3)) &&
 227         (!strncmp(beam, "MU-"   ,3)) &&
 228         (!strncmp(beam, "NUE"   ,3)) &&
 229         (!strncmp(beam, "NUEB"  ,4)) &&
 230         (!strncmp(beam, "NUMU"  ,4)) &&
 231         (!strncmp(beam, "NMUB"  ,4)) &&
 232         (!strncmp(beam, "NTAU"  ,4)) &&
 233         (!strncmp(beam, "NTAB"  ,4)) &&
 234         (!strncmp(beam, "GAMA"  ,4)) &&
 235         (!strncmp(beam, "P       ",8)) &&
 236         (!strncmp(beam, "PBAR    ",8)) &&
 237         (!strncmp(beam, "N"     ,1)) &&
 238         (!strncmp(beam, "NBAR"  ,4)) &&
 239         (!strncmp(beam, "PI+"   ,3)) &&
 240         (!strncmp(beam, "PI-"   ,3)) ) {
 241       printf("WARNING! In THerwig6:Initialize():\n");
 242       printf(" specified beam=%s is unrecognized .\n",beam);
 243       printf(" resetting to \"P\" .");
 244       sprintf(cbeam,"P");
 245    }
 246
 247    if ( (!strncmp(target, "E+"    ,2)) &&
 248         (!strncmp(target, "E-"    ,2)) &&
 249         (!strncmp(target, "MU+"   ,3)) &&
 250         (!strncmp(target, "MU-"   ,3)) &&
 251         (!strncmp(target, "NUE"   ,3)) &&
 252         (!strncmp(target, "NUEB"  ,4)) &&
 253         (!strncmp(target, "NUMU"  ,4)) &&
 254         (!strncmp(target, "NMUB"  ,4)) &&
 255         (!strncmp(target, "NTAU"  ,4)) &&
 256         (!strncmp(target, "NTAB"  ,4)) &&
 257         (!strncmp(target, "GAMA"  ,4)) &&
 258         (!strncmp(target, "P       ",8)) &&
 259         (!strncmp(target, "PBAR    ",8)) &&
 260         (!strncmp(target, "N"     ,1)) &&
 261         (!strncmp(target, "NBAR"  ,4)) &&
 262         (!strncmp(target, "PI+"   ,3)) &&
 263         (!strncmp(target, "PI-"   ,3)) ) {
 264       printf("WARNING! In THerwig6:Initialize():\n");
 265       printf(" specified target=%s is unrecognized .\n",target);
 266       printf(" resetting to \"P\" .");
 267       sprintf(ctarget,"P");
 268    }
 269
 270    // initialization:
 271    // type of beams
 272    strncpy(fHwbmch->PART1,beam,8);
 273    strncpy(fHwbmch->PART2,target,8);
 274    // momentum of beams
 275    fHwproc->PBEAM1=pbeam1;
 276    fHwproc->PBEAM2=pbeam2;
 277    // process to generate
 278    fHwproc->IPROC=iproc;
 279    // not used in the class definition
 280    fHwproc->MAXEV=1;
 281
 282    // reset all parameters
 283    hwigin_();
 284
 285    // set correct title
 286    char atitle[132];
 287    double win=pbeam1+pbeam2;
 288    printf("\n %s - %s at %g GeV",beam,target,win);
 289    sprintf(atitle,"%s-%s at %g GeV",cbeam,ctarget,win);
 290    SetTitle(atitle);
 291 }
 292
 293 void THerwig6::PrepareRun()
 294 {
 295   // compute parameter dependent constants
 296   hwuinc_();
 297   // initialize elementary processes
 298   hweini_();
 299 }
 300
 301 //______________________________________________________________________________
 302 TObjArray* THerwig6::ImportParticles(Option_t *option)
 303 {
 304 //
 305 //  Default primary creation method. It reads the /HEPEVT/ common block which
 306 //  has been filled by the GenerateEvent method. If the event generator does
 307 //  not use the HEPEVT common block, This routine has to be overloaded by
 308 //  the subclasses.
 309 //  The default action is to store only the stable particles (ISTHEP = 1)
 310 //  This can be demanded explicitly by setting the option = "Final"
 311 //  If the option = "All", all the particles are stored.
 312 //
 313   fParticles->Clear();
 314   Int_t numpart = fHepevt->NHEP;
 315   TClonesArray &a = *((TClonesArray*)fParticles);
 316   if (!strcmp(option,"") || !strcmp(option,"Final")) {
 317     for (Int_t i = 0; i<=numpart; i++) {
 318       if (fHepevt->ISTHEP[i] == 1) {
 319 //
 320 //  Use the common block values for the TParticle constructor
 321 //
 322         new(a[i]) TParticle(
 323                                    fHepevt->IDHEP[i],
 324                                    fHepevt->ISTHEP[i],
 325                                    fHepevt->JMOHEP[i][0]-1,
 326                                    fHepevt->JMOHEP[i][1]-1,
 327                                    fHepevt->JDAHEP[i][0]-1,
 328                                    fHepevt->JDAHEP[i][1]-1,
 329
 330                                    fHepevt->PHEP[i][0],
 331                                    fHepevt->PHEP[i][1],
 332                                    fHepevt->PHEP[i][2],
 333                                    fHepevt->PHEP[i][3],
 334                                    fHepevt->VHEP[i][0],
 335                                    fHepevt->VHEP[i][1],
 336                                    fHepevt->VHEP[i][2],
 337                                    fHepevt->VHEP[i][3]);
 338         }
 339      }
 340   }
 341   else if (!strcmp(option,"All")) {
 342     for (Int_t i = 0; i<=numpart; i++) {
 343       new(a[i]) TParticle(
 344                                    fHepevt->IDHEP[i],
 345                                    fHepevt->ISTHEP[i],
 346                                    fHepevt->JMOHEP[i][0]-1,
 347                                    fHepevt->JMOHEP[i][1]-1,
 348                                    fHepevt->JDAHEP[i][0]-1,
 349                                    fHepevt->JDAHEP[i][1]-1,
 350
 351                                    fHepevt->PHEP[i][0],
 352                                    fHepevt->PHEP[i][1],
 353                                    fHepevt->PHEP[i][2],
 354                                    fHepevt->PHEP[i][3],
 355                                    fHepevt->VHEP[i][0],
 356                                    fHepevt->VHEP[i][1],
 357                                    fHepevt->VHEP[i][2],
 358                                    fHepevt->VHEP[i][3]);
 359     }
 360   }
 361   return fParticles;
 362 }
 363
 364 //______________________________________________________________________________
 365 Int_t THerwig6::ImportParticles(TClonesArray *particles, Option_t *option)
 366 {
 367 //
 368 //  Default primary creation method. It reads the /HEPEVT/ common block which
 369 //  has been filled by the GenerateEvent method. If the event generator does
 370 //  not use the HEPEVT common block, This routine has to be overloaded by
 371 //  the subclasses.
 372 //  The function loops on the generated particles and store them in
 373 //  the TClonesArray pointed by the argument particles.
 374 //  The default action is to store only the stable particles (ISTHEP = 1)
 375 //  This can be demanded explicitly by setting the option = "Final"
 376 //  If the option = "All", all the particles are stored.
 377 //
 378   if (particles == 0) return 0;
 379   TClonesArray &refParticles = *particles;
 380   refParticles.Clear();
 381   Int_t numpart = fHepevt->NHEP;
 382   if (!strcmp(option,"") || !strcmp(option,"Final")) {
 383     for (Int_t i = 0; i< numpart; i++) {
 384       if (fHepevt->ISTHEP[i] == 1) {
 385 //
 386 //  Use the common block values for the TParticle constructor
 387 //
 388         new(refParticles[i]) TParticle(
 389                                    fHepevt->IDHEP[i],
 390                                    fHepevt->ISTHEP[i],
 391                                    fHepevt->JMOHEP[i][0]-1,
 392                                    fHepevt->JMOHEP[i][1]-1,
 393                                    fHepevt->JDAHEP[i][0]-1,
 394                                    fHepevt->JDAHEP[i][1]-1,
 395
 396                                    fHepevt->PHEP[i][0],
 397                                    fHepevt->PHEP[i][1],
 398                                    fHepevt->PHEP[i][2],
 399                                    fHepevt->PHEP[i][3],
 400                                    fHepevt->VHEP[i][0],
 401                                    fHepevt->VHEP[i][1],
 402                                    fHepevt->VHEP[i][2],
 403                                    fHepevt->VHEP[i][3]);
 404         }
 405      }
 406   }
 407   else if (!strcmp(option,"All")) {
 408     for (Int_t i = 0; i< numpart; i++) {
 409       new(refParticles[i]) TParticle(
 410                                    fHepevt->IDHEP[i],
 411                                    fHepevt->ISTHEP[i],
 412                                    fHepevt->JMOHEP[i][0]-1,
 413                                    fHepevt->JMOHEP[i][1]-1,
 414                                    fHepevt->JDAHEP[i][0]-1,
 415                                    fHepevt->JDAHEP[i][1]-1,
 416
 417                                    fHepevt->PHEP[i][0],
 418                                    fHepevt->PHEP[i][1],
 419                                    fHepevt->PHEP[i][2],
 420                                    fHepevt->PHEP[i][3],
 421                                    fHepevt->VHEP[i][0],
 422                                    fHepevt->VHEP[i][1],
 423                                    fHepevt->VHEP[i][2],
 424                                    fHepevt->VHEP[i][3]);
 425     }
 426   }
 427   return numpart;
 428 }
 429
 430 void THerwig6::Hwigin()
 431 {
 432   hwigin_();
 433 }
 434
 435 void THerwig6::Hwuinc()
 436 {
 437   hwuinc_();
 438 }
 439
 440 void THerwig6::Hwusta(char* name)
 441
 442 {
 443   hwusta_(name,8);
 444 }
 445
 446 void THerwig6::Hweini()
 447
 448 {
 449   hweini_();
 450 }
 451
 452 void THerwig6::Hwuine()
 453
 454 {
 455   hwuine_();
 456 }
 457
 458 void THerwig6::Hwepro()
 459
 460 {
 461   hwepro_();
 462 }
 463
 464 void THerwig6::Hwbgen()
 465
 466 {
 467   hwbgen_();
 468 }
 469
 470 void THerwig6::Hwdhob()
 471
 472 {
 473   hwdhob_();
 474 }
 475
 476 void THerwig6::Hwcfor()
 477
 478 {
 479   hwcfor_();
 480 }
 481
 482 void THerwig6::Hwcdec()
 483
 484 {
 485   hwcdec_();
 486 }
 487
 488 void THerwig6::Hwdhad()
 489
 490 {
 491   hwdhad_();
 492 }
 493
 494 void THerwig6::Hwdhvy()
 495
 496 {
 497   hwdhvy_();
 498 }
 499
 500 void THerwig6::Hwmevt()
 501
 502 {
 503   hwmevt_();
 504 }
 505
 506 void THerwig6::Hwufne()
 507
 508 {
 509   hwufne_();
 510 }
 511
 512 void THerwig6::Hwefin()
 513
 514 {
 515   hwefin_();
 516 }
 517
 518 void THerwig6::Hwiodk(int iopt)
 519
 520 {
 521   hwiodk_(iopt);
 522 }
 523
 524 void THerwig6::SetupTest()
 525 {
 526   // exampe of running herwig and generating one event
 527   // after changing some options
 528   Initialize("P","PBAR",900.,900.,1500);
 529   // here you can set some parameters
 530   SetPTMIN(15.); // Min pt in hadronic jet production
 531   SetYJMIN(-4.); // Min jet rapidity
 532   SetYJMAX(4.);  // Max jet rapidity
 533   // after you set your wished parameters
 534   // herwig can do its work
 535   PrepareRun();
 536   int nEvToGenerate=1;
 537   for (int i=0;i<nEvToGenerate;i++)
 538     {
 539       GenerateEvent();
 540       // do your stuff. For ex:
 541       int nOfPar=GetNumberOfParticles(); // from TGenerator
 542       for (int j=0; j<nOfPar; j++)
 543         {
 544           TParticle* p=GetParticle(j);
 545           // here you do whatever you want with the particle
 546           p->Print();
 547         };
 548     };
 549 }
 550
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 554