-
// definition of c++ Class THerwig6 to be used in ROOT
// this is a c++ interface to the F77 Herwig6 program
// author: j. g. contreras jgcn@moni.mda.cinvestav.mx
// date: december 22, 2000
+// Class THerwig6 is an interface to the Herwig program
+//
+// C-----------------------------------------------------------------------
+// C H E R W I G
+// C
+// C a Monte Carlo event generator for simulating
+// C +---------------------------------------------------+
+// C | Hadron Emission Reactions With Interfering Gluons |
+// C +---------------------------------------------------+
+// C I.G. Knowles(*), G. Marchesini(+), M.H. Seymour($) and B.R. Webber(#)
+// C-----------------------------------------------------------------------
+// C with Minimal Supersymmetric Standard Model Matrix Elements by
+// C S. Moretti($) and K. Odagiri($)
+// C-----------------------------------------------------------------------
+// C R parity violating Supersymmetric Decays and Matrix Elements by
+// C P. Richardson(&)
+// C-----------------------------------------------------------------------
+// C matrix element corrections to top decay and Drell-Yan type processes
+// C by G. Corcella(+)
+// C-----------------------------------------------------------------------
+// C Deep Inelastic Scattering and Heavy Flavour Electroproduction by
+// C G. Abbiendi(@) and L. Stanco(%)
+// C-----------------------------------------------------------------------
+// C and Jet Photoproduction in Lepton-Hadron Collisions by J. Chyla(~)
+// C-----------------------------------------------------------------------
+// C(*) Department of Physics & Astronomy, University of Edinburgh
+// C(+) Dipartimento di Fisica, Universita di Milano
+// C($) Rutherford Appleton Laboratory
+// C(#) Cavendish Laboratory, Cambridge
+// C(&) Department of Physics, University of Oxford
+// C(@) Dipartimento di Fisica, Universita di Bologna
+// C(%) Dipartimento di Fisica, Universita di Padova
+// C(~) Institute of Physics, Prague
+// C-----------------------------------------------------------------------
+// C Version 6.100 - 16th December 1999
+// C-----------------------------------------------------------------------
+// C Main reference:
+// C G.Marchesini, B.R.Webber, G.Abbiendi, I.G.Knowles, M.H.Seymour,
+// C and L.Stanco, Computer Physics Communications 67 (1992) 465.
+// C-----------------------------------------------------------------------
+// C Please send e-mail about this program to one of the authors at the
+// C following Internet addresses:
+// C I.Knowles@ed.ac.uk Giuseppe.Marchesini@mi.infn.it
+// C M.Seymour@rl.ac.uk webber@hep.phy.cam.ac.uk
+// C-----------------------------------------------------------------------
+
-#include <stream.h>
#include "THerwig6.h"
#include "TClonesArray.h"
#include "TParticle.h"
+#include "TObjArray.h"
ClassImp(THerwig6)
}
-THerwig6::THerwig6() : TGenerator("Herwig6","Herwig6") {
+THerwig6::THerwig6() : TGenerator("Herwig6","Herwig6"),
+ fHepevt((Hepevt_t*) herwig6_common_block_address_((char*)"HEPEVT",6)),
+ fHwbeam((Hwbeam_t*) herwig6_common_block_address_((char*)"HWBEAM",6)),
+ fHwbmch((Hwbmch_t*) herwig6_common_block_address_((char*)"HWBMCH",6)),
+ fHwproc((Hwproc_t*) herwig6_common_block_address_((char*)"HWPROC",6)),
+ fHwpram((Hwpram_t*) herwig6_common_block_address_((char*)"HWPRAM",6)),
+ fHwprch((Hwprch_t*) herwig6_common_block_address_((char*)"HWPRCH",6)),
+ fHwpart((Hwpart_t*) herwig6_common_block_address_((char*)"HWPART",6)),
+ fHwparp((Hwparp_t*) herwig6_common_block_address_((char*)"HWPARP",6)),
+ fHwbosc((Hwbosc_t*) herwig6_common_block_address_((char*)"HWBOSC",6)),
+ fHwparc((Hwparc_t*) herwig6_common_block_address_((char*)"HWPARC",6)),
+ fHwbrch((Hwbrch_t*) herwig6_common_block_address_((char*)"HWBRCH",6)),
+ fHwevnt((Hwevnt_t*) herwig6_common_block_address_((char*)"HWEVNT",6)),
+ fHwhard((Hwhard_t*) herwig6_common_block_address_((char*)"HWHARD",6)),
+ fHwprop((Hwprop_t*) herwig6_common_block_address_((char*)"HWPROP",6)),
+ fHwunam((Hwunam_t*) herwig6_common_block_address_((char*)"HWUNAM",6)),
+ fHwupdt((Hwupdt_t*) herwig6_common_block_address_((char*)"HWUPDT",6)),
+ fHwuwts((Hwuwts_t*) herwig6_common_block_address_((char*)"HWUWTS",6)),
+ fHwuclu((Hwuclu_t*) herwig6_common_block_address_((char*)"HWUCLU",6)),
+ fHwdist((Hwdist_t*) herwig6_common_block_address_((char*)"HWDIST",6)),
+ fHwqdks((Hwqdks_t*) herwig6_common_block_address_((char*)"HWQDKS",6)),
+ fHwusud((Hwusud_t*) herwig6_common_block_address_((char*)"HWUSUD",6)),
+ fHwsusy((Hwsusy_t*) herwig6_common_block_address_((char*)"HWSUSY",6)),
+ fHwrpar((Hwrpar_t*) herwig6_common_block_address_((char*)"HWRPAR",6)),
+ fHwminb((Hwminb_t*) herwig6_common_block_address_((char*)"HWMINB",6)),
+ fHwclus((Hwclus_t*) herwig6_common_block_address_((char*)"HWCLUS",6)),
+ fHwgrav((Hwgrav_t*) herwig6_common_block_address_((char*)"HWGRAV",6)),
+ fHw6202((Hw6202_t*) herwig6_common_block_address_((char*)"HW6202",6)),
+ fHw6203((Hw6203_t*) herwig6_common_block_address_((char*)"HW6203",6)),
+ fHw6300((Hw6300_t*) herwig6_common_block_address_((char*)"HW6300",6)),
+ fHwpmrs((Hwpmrs_t*) herwig6_common_block_address_((char*)"HWPMRS",6)),
+ fHwcirc((Hwcirc_t*) herwig6_common_block_address_((char*)"HWCIRC",6)),
+ fHwdspb((Hwdspb_t*) herwig6_common_block_address_((char*)"HWDSPB",6)),
+ fHwdsp2((Hwdsp2_t*) herwig6_common_block_address_((char*)"HWDSP2",6)),
+ fHwdsp3((Hwdsp3_t*) herwig6_common_block_address_((char*)"HWDSP3",6)),
+ fHwdsp4((Hwdsp4_t*) herwig6_common_block_address_((char*)"HWDSP4",6)),
+ fHwdspn((Hwdspn_t*) herwig6_common_block_address_((char*)"HWDSPN",6)),
+ fHwspin((Hwspin_t*) herwig6_common_block_address_((char*)"HWSPIN",6)),
+ fHwstau((Hwstau_t*) herwig6_common_block_address_((char*)"HWSTAU",6)),
+ fHwgupr((Hwgupr_t*) herwig6_common_block_address_((char*)"HWGUPR",6)),
+ fHw6500((Hw6500_t*) herwig6_common_block_address_((char*)"HW6500",6)),
+ fHw6504((Hw6504_t*) herwig6_common_block_address_((char*)"HW6504",6)),
+ fHw6506((Hw6506_t*) herwig6_common_block_address_((char*)"HW6506",6))
+{
// THerwig6 constructor: creates a TClonesArray in which it will store all
// particles. Note that there may be only one functional THerwig6 object
// at a time, so it's not use to create more than one instance of it.
delete fParticles; // was allocated as TObjArray in TGenerator
-
fParticles = new TClonesArray("TParticle",50);
// initialize common-blocks
- fHepevt = (Hepevt_t*) herwig6_common_block_address_((char*)"HEPEVT",6);
- fHwbeam = (Hwbeam_t*) herwig6_common_block_address_((char*)"HWBEAM",6);
- fHwbmch = (Hwbmch_t*) herwig6_common_block_address_((char*)"HWBMCH",6);
- fHwproc = (Hwproc_t*) herwig6_common_block_address_((char*)"HWPROC",6);
- fHwpram = (Hwpram_t*) herwig6_common_block_address_((char*)"HWPRAM",6);
- fHwprch = (Hwprch_t*) herwig6_common_block_address_((char*)"HWPRCH",6);
- fHwpart = (Hwpart_t*) herwig6_common_block_address_((char*)"HWPART",6);
- fHwparp = (Hwparp_t*) herwig6_common_block_address_((char*)"HWPARP",6);
- fHwbosc = (Hwbosc_t*) herwig6_common_block_address_((char*)"HWBOSC",6);
- fHwparc = (Hwparc_t*) herwig6_common_block_address_((char*)"HWPARC",6);
- fHwbrch = (Hwbrch_t*) herwig6_common_block_address_((char*)"HWBRCH",6);
- fHwevnt = (Hwevnt_t*) herwig6_common_block_address_((char*)"HWEVNT",6);
- fHwhard = (Hwhard_t*) herwig6_common_block_address_((char*)"HWHARD",6);
- fHwprop = (Hwprop_t*) herwig6_common_block_address_((char*)"HWPROP",6);
- fHwunam = (Hwunam_t*) herwig6_common_block_address_((char*)"HWUNAM",6);
- fHwupdt = (Hwupdt_t*) herwig6_common_block_address_((char*)"HWUPDT",6);
- fHwuwts = (Hwuwts_t*) herwig6_common_block_address_((char*)"HWUWTS",6);
- fHwuclu = (Hwuclu_t*) herwig6_common_block_address_((char*)"HWUCLU",6);
- fHwdist = (Hwdist_t*) herwig6_common_block_address_((char*)"HWDIST",6);
- fHwqdks = (Hwqdks_t*) herwig6_common_block_address_((char*)"HWQDKS",6);
- fHwusud = (Hwusud_t*) herwig6_common_block_address_((char*)"HWUSUD",6);
- fHwsusy = (Hwsusy_t*) herwig6_common_block_address_((char*)"HWSUSY",6);
- fHwrpar = (Hwrpar_t*) herwig6_common_block_address_((char*)"HWRPAR",6);
- fHwminb = (Hwminb_t*) herwig6_common_block_address_((char*)"HWMINB",6);
- fHwclus = (Hwclus_t*) herwig6_common_block_address_((char*)"HWCLUS",6);
}
+THerwig6::THerwig6(const THerwig6 & source): TGenerator(source),
+ fHepevt((Hepevt_t*) herwig6_common_block_address_((char*)"HEPEVT",6)),
+ fHwbeam((Hwbeam_t*) herwig6_common_block_address_((char*)"HWBEAM",6)),
+ fHwbmch((Hwbmch_t*) herwig6_common_block_address_((char*)"HWBMCH",6)),
+ fHwproc((Hwproc_t*) herwig6_common_block_address_((char*)"HWPROC",6)),
+ fHwpram((Hwpram_t*) herwig6_common_block_address_((char*)"HWPRAM",6)),
+ fHwprch((Hwprch_t*) herwig6_common_block_address_((char*)"HWPRCH",6)),
+ fHwpart((Hwpart_t*) herwig6_common_block_address_((char*)"HWPART",6)),
+ fHwparp((Hwparp_t*) herwig6_common_block_address_((char*)"HWPARP",6)),
+ fHwbosc((Hwbosc_t*) herwig6_common_block_address_((char*)"HWBOSC",6)),
+ fHwparc((Hwparc_t*) herwig6_common_block_address_((char*)"HWPARC",6)),
+ fHwbrch((Hwbrch_t*) herwig6_common_block_address_((char*)"HWBRCH",6)),
+ fHwevnt((Hwevnt_t*) herwig6_common_block_address_((char*)"HWEVNT",6)),
+ fHwhard((Hwhard_t*) herwig6_common_block_address_((char*)"HWHARD",6)),
+ fHwprop((Hwprop_t*) herwig6_common_block_address_((char*)"HWPROP",6)),
+ fHwunam((Hwunam_t*) herwig6_common_block_address_((char*)"HWUNAM",6)),
+ fHwupdt((Hwupdt_t*) herwig6_common_block_address_((char*)"HWUPDT",6)),
+ fHwuwts((Hwuwts_t*) herwig6_common_block_address_((char*)"HWUWTS",6)),
+ fHwuclu((Hwuclu_t*) herwig6_common_block_address_((char*)"HWUCLU",6)),
+ fHwdist((Hwdist_t*) herwig6_common_block_address_((char*)"HWDIST",6)),
+ fHwqdks((Hwqdks_t*) herwig6_common_block_address_((char*)"HWQDKS",6)),
+ fHwusud((Hwusud_t*) herwig6_common_block_address_((char*)"HWUSUD",6)),
+ fHwsusy((Hwsusy_t*) herwig6_common_block_address_((char*)"HWSUSY",6)),
+ fHwrpar((Hwrpar_t*) herwig6_common_block_address_((char*)"HWRPAR",6)),
+ fHwminb((Hwminb_t*) herwig6_common_block_address_((char*)"HWMINB",6)),
+ fHwclus((Hwclus_t*) herwig6_common_block_address_((char*)"HWCLUS",6)),
+ fHwgrav((Hwgrav_t*) herwig6_common_block_address_((char*)"HWGRAV",6)),
+ fHw6202((Hw6202_t*) herwig6_common_block_address_((char*)"HW6202",6)),
+ fHw6203((Hw6203_t*) herwig6_common_block_address_((char*)"HW6203",6)),
+ fHw6300((Hw6300_t*) herwig6_common_block_address_((char*)"HW6300",6)),
+ fHwpmrs((Hwpmrs_t*) herwig6_common_block_address_((char*)"HWPMRS",6)),
+ fHwcirc((Hwcirc_t*) herwig6_common_block_address_((char*)"HWCIRC",6)),
+ fHwdspb((Hwdspb_t*) herwig6_common_block_address_((char*)"HWDSPB",6)),
+ fHwdsp2((Hwdsp2_t*) herwig6_common_block_address_((char*)"HWDSP2",6)),
+ fHwdsp3((Hwdsp3_t*) herwig6_common_block_address_((char*)"HWDSP3",6)),
+ fHwdsp4((Hwdsp4_t*) herwig6_common_block_address_((char*)"HWDSP4",6)),
+ fHwdspn((Hwdspn_t*) herwig6_common_block_address_((char*)"HWDSPN",6)),
+ fHwspin((Hwspin_t*) herwig6_common_block_address_((char*)"HWSPIN",6)),
+ fHwstau((Hwstau_t*) herwig6_common_block_address_((char*)"HWSTAU",6)),
+ fHwgupr((Hwgupr_t*) herwig6_common_block_address_((char*)"HWGUPR",6)),
+ fHw6500((Hw6500_t*) herwig6_common_block_address_((char*)"HW6500",6)),
+ fHw6504((Hw6504_t*) herwig6_common_block_address_((char*)"HW6504",6)),
+ fHw6506((Hw6506_t*) herwig6_common_block_address_((char*)"HW6506",6))
+{
+ Fatal("THerwig6","Copy constructor not implemented yet");
+}
//------------------------------------------------------------------------------
THerwig6::~THerwig6()
{
-// Destroys the object, deletes and disposes all TParticles currently on list.
-
- if (fParticles) {
- fParticles->Delete();
- delete fParticles;
- fParticles = 0;
- }
+ // Destructor. The data members of TGenerator are delete by itself
}
//______________________________________________________________________________
-void THerwig6::GenerateEvent()
+void THerwig6::GenerateEvent()
{
-
+
//initialize event
hwuine_();
// generate hard subprocess
// finish event
hwufne_();
}
-
//______________________________________________________________________________
void THerwig6::OpenFortranFile(int lun, char* name) {
herwig6_open_fortran_file_(&lun, name, strlen(name));
{
// perform the initialization for Herwig6
- // sets correct title.
+ // sets correct title.
+ // after calling this method all parameters are set to their default
+ // values. If you want to modify any parameter you have to set the new
+ // value after calling Initialize and before PrepareRun.
+
+ char cbeam[8];
+ strncpy(cbeam,beam,8);
+ char ctarget[8];
+ strncpy(ctarget,target,8);
+ printf("\n Initializing Herwig !! \n");
+ if ( (!strncmp(beam, "E+" ,2)) &&
+ (!strncmp(beam, "E-" ,2)) &&
+ (!strncmp(beam, "MU+" ,3)) &&
+ (!strncmp(beam, "MU-" ,3)) &&
+ (!strncmp(beam, "NUE" ,3)) &&
+ (!strncmp(beam, "NUEB" ,4)) &&
+ (!strncmp(beam, "NUMU" ,4)) &&
+ (!strncmp(beam, "NMUB" ,4)) &&
+ (!strncmp(beam, "NTAU" ,4)) &&
+ (!strncmp(beam, "NTAB" ,4)) &&
+ (!strncmp(beam, "GAMA" ,4)) &&
+ (!strncmp(beam, "P ",8)) &&
+ (!strncmp(beam, "PBAR ",8)) &&
+ (!strncmp(beam, "N" ,1)) &&
+ (!strncmp(beam, "NBAR" ,4)) &&
+ (!strncmp(beam, "PI+" ,3)) &&
+ (!strncmp(beam, "PI-" ,3)) ) {
+ printf("WARNING! In THerwig6:Initialize():\n");
+ printf(" specified beam=%s is unrecognized .\n",beam);
+ printf(" resetting to \"P\" .");
+ sprintf(cbeam,"P");
+ }
+
+ if ( (!strncmp(target, "E+" ,2)) &&
+ (!strncmp(target, "E-" ,2)) &&
+ (!strncmp(target, "MU+" ,3)) &&
+ (!strncmp(target, "MU-" ,3)) &&
+ (!strncmp(target, "NUE" ,3)) &&
+ (!strncmp(target, "NUEB" ,4)) &&
+ (!strncmp(target, "NUMU" ,4)) &&
+ (!strncmp(target, "NMUB" ,4)) &&
+ (!strncmp(target, "NTAU" ,4)) &&
+ (!strncmp(target, "NTAB" ,4)) &&
+ (!strncmp(target, "GAMA" ,4)) &&
+ (!strncmp(target, "P ",8)) &&
+ (!strncmp(target, "PBAR ",8)) &&
+ (!strncmp(target, "N" ,1)) &&
+ (!strncmp(target, "NBAR" ,4)) &&
+ (!strncmp(target, "PI+" ,3)) &&
+ (!strncmp(target, "PI-" ,3)) ) {
+ printf("WARNING! In THerwig6:Initialize():\n");
+ printf(" specified target=%s is unrecognized .\n",target);
+ printf(" resetting to \"P\" .");
+ sprintf(ctarget,"P");
+ }
+
+ // initialization:
+ // type of beams
+ strncpy(fHwbmch->PART1,beam,8);
+ strncpy(fHwbmch->PART2,target,8);
+ // momentum of beams
+ fHwproc->PBEAM1=pbeam1;
+ fHwproc->PBEAM2=pbeam2;
+ // process to generate
+ fHwproc->IPROC=iproc;
+ // not used in the class definition
+ fHwproc->MAXEV=1;
+
+ // reset all parameters
+ hwigin_();
+
+ // set correct title
+ char atitle[132];
+ double win=pbeam1+pbeam2;
+ printf("\n %s - %s at %g GeV",beam,target,win);
+ sprintf(atitle,"%s-%s at %g GeV",cbeam,ctarget,win);
+ SetTitle(atitle);
+}
+
+void THerwig6::InitializeJimmy(const char *beam, const char *target, double pbeam1, double pbeam2, int iproc)
+
+{
+ // perform the initialization for Herwig6
+ // sets correct title.
// after calling this method all parameters are set to their default
// values. If you want to modify any parameter you have to set the new
// value after calling Initialize and before PrepareRun.
fHwproc->PBEAM2=pbeam2;
// process to generate
fHwproc->IPROC=iproc;
- // not used in the class definition
+ // not used in the class definition
fHwproc->MAXEV=1;
// reset all parameters
hwigin_();
-
+ // JIMMY initialization
+ jimmin_();
+
// set correct title
char atitle[132];
double win=pbeam1+pbeam2;
printf("\n %s - %s at %g GeV",beam,target,win);
sprintf(atitle,"%s-%s at %g GeV",cbeam,ctarget,win);
- SetTitle(atitle);
+ SetTitle(atitle);
}
void THerwig6::PrepareRun()
hweini_();
}
+void THerwig6::PrepareRunJimmy()
+{
+ // compute parameter dependent constants
+ hwuinc_();
+ // initialize elementary processes
+ hweini_();
+ // more initializations for JIMMY
+ jminit_();
+}
//______________________________________________________________________________
TObjArray* THerwig6::ImportParticles(Option_t *option)
{
// If the option = "All", all the particles are stored.
//
if (particles == 0) return 0;
- TClonesArray &Particles = *particles;
- Particles.Clear();
+ TClonesArray &refParticles = *particles;
+ refParticles.Clear();
Int_t numpart = fHepevt->NHEP;
if (!strcmp(option,"") || !strcmp(option,"Final")) {
for (Int_t i = 0; i< numpart; i++) {
//
// Use the common block values for the TParticle constructor
//
- new(Particles[i]) TParticle(
+ new(refParticles[i]) TParticle(
fHepevt->IDHEP[i],
fHepevt->ISTHEP[i],
fHepevt->JMOHEP[i][0]-1,
}
else if (!strcmp(option,"All")) {
for (Int_t i = 0; i< numpart; i++) {
- new(Particles[i]) TParticle(
+ new(refParticles[i]) TParticle(
fHepevt->IDHEP[i],
fHepevt->ISTHEP[i],
fHepevt->JMOHEP[i][0]-1,
hwefin_();
}
+void THerwig6::Hwiodk(int iopt)
+
+{
+ hwiodk_(iopt);
+}
+
void THerwig6::SetupTest()
{
// exampe of running herwig and generating one event
// after you set your wished parameters
// herwig can do its work
PrepareRun();
- int n_ev_to_generate=1;
- for (int i=0;i<n_ev_to_generate;i++)
+ int nEvToGenerate=1;
+ for (int i=0;i<nEvToGenerate;i++)
{
GenerateEvent();
// do your stuff. For ex:
- int n_of_par=GetNumberOfParticles(); // from TGenerator
- for (int j=0; j<n_of_par; j++)
+ int nOfPar=GetNumberOfParticles(); // from TGenerator
+ for (int j=0; j<nOfPar; j++)
{
TParticle* p=GetParticle(j);
// here you do whatever you want with the particle
};
}
+// Jimmy subroutines
+
+void THerwig6::Jminit()
+{
+ jminit_();
+}
+
+void THerwig6::Jimmin()
+{
+ jimmin_();
+}
+
+void THerwig6::Jmefin()
+{
+ jmefin_();
+}
+
+