* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.47 2003/01/14 10:50:18 alibrary
-Cleanup of STEER coding conventions
-
-Revision 1.46 2003/01/07 14:12:33 morsch
-Provides collision geometry.
-
-Revision 1.45 2002/12/16 09:44:49 morsch
-Default for fRadiation is 3.
-
-Revision 1.44 2002/10/14 14:55:35 hristov
-Merging the VirtualMC branch to the main development branch (HEAD)
-
-Revision 1.42.4.1 2002/08/28 15:06:50 alibrary
-Updating to v3-09-01
-
-Revision 1.43 2002/08/09 12:09:52 morsch
-Direct gamma trigger correctly included.
-
-Revision 1.42 2002/03/12 11:07:08 morsch
-Add status code of particle to SetTrack call.
-
-Revision 1.41 2002/03/05 11:25:33 morsch
-- New quenching options
-- Correction in CheckTrigger()
-
-Revision 1.40 2002/02/12 11:05:53 morsch
-Get daughter indices right.
-
-Revision 1.39 2002/02/12 09:16:39 morsch
-Correction in SelectFlavor()
-
-Revision 1.38 2002/02/12 08:53:21 morsch
-SetNoGammas can be used to inhibit writing of gammas and pi0.
-
-Revision 1.37 2002/02/08 16:50:50 morsch
-Add name and title in constructor.
-
-Revision 1.36 2002/01/31 20:17:55 morsch
-Allow for triggered jets with simplified topology: Exact pT, back-to-back
-
-Revision 1.35 2001/12/13 07:56:25 hristov
-Set pointers to zero in the default constructor
-
-Revision 1.34 2001/12/11 16:55:42 morsch
-Correct initialization for jet phi-range.
-
-Revision 1.33 2001/12/05 10:18:51 morsch
-Possibility of kinematic biasing of jet phi range. (J. Klay)
-
-Revision 1.32 2001/11/28 13:51:11 morsch
-Introduce kinematic biasing (etamin, etamax) of jet trigger. Bookkeeping
-(number of trials) done in AliGenHijingEventHeader.
-
-Revision 1.31 2001/11/06 12:30:34 morsch
-Add Boost() method to boost all particles to LHC lab frame. Needed for asymmetric collision systems.
-
-Revision 1.30 2001/10/21 18:35:56 hristov
-Several pointers were set to zero in the default constructors to avoid memory management problems
-
-Revision 1.29 2001/10/15 08:12:24 morsch
-- Vertex smearing with truncated gaussian.
-- Store triggered jet info before and after final state radiation into mc-heade
-
-Revision 1.28 2001/10/08 11:55:25 morsch
-Store 4-momenta of trigegred jets in event header.
-Possibility to switch of initial and final state radiation.
-
-Revision 1.27 2001/10/08 07:13:14 morsch
-Add setter for minimum transverse momentum of triggered jet.
-
-Revision 1.26 2001/10/04 08:12:24 morsch
-Redefinition of stable condition.
-
-Revision 1.25 2001/07/27 17:09:36 morsch
-Use local SetTrack, KeepTrack and SetHighWaterMark methods
-to delegate either to local stack or to stack owned by AliRun.
-(Piotr Skowronski, A.M.)
-
-Revision 1.24 2001/07/20 09:34:56 morsch
-Count the number of spectator neutrons and protons and add information
-to the event header. (Chiara Oppedisano)
-
-Revision 1.23 2001/07/13 17:30:22 morsch
-Derive from AliGenMC.
-
-Revision 1.22 2001/06/11 13:09:23 morsch
-- Store cross-Section and number of binary collisions as a function of impact parameter
-- Pass AliGenHijingEventHeader to gAlice.
-
-Revision 1.21 2001/02/28 17:35:24 morsch
-Consider elastic interactions (ks = 1 and ks = 11) as spectator (Chiara Oppedisano)
-
-Revision 1.20 2001/02/14 15:50:40 hristov
-The last particle in event marked using SetHighWaterMark
-
-Revision 1.19 2000/12/21 16:24:06 morsch
-Coding convention clean-up
-
-Revision 1.18 2000/12/06 17:46:30 morsch
-Avoid random numbers 1 and 0.
-
-Revision 1.17 2000/12/04 11:22:03 morsch
-Init of sRandom as in 1.15
-
-Revision 1.16 2000/12/02 11:41:39 morsch
-Use SetRandom() to initialize random number generator in constructor.
-
-Revision 1.15 2000/11/30 20:29:02 morsch
-Initialise static variable sRandom in constructor: sRandom = fRandom;
-
-Revision 1.14 2000/11/30 07:12:50 alibrary
-Introducing new Rndm and QA classes
-
-Revision 1.13 2000/11/09 17:40:27 morsch
-Possibility to select/unselect spectator protons and neutrons.
-Method SetSpectators(Int_t spect) added. (FCA, Ch. Oppedisano)
-
-Revision 1.12 2000/10/20 13:38:38 morsch
-Debug printouts commented.
-
-Revision 1.11 2000/10/20 13:22:26 morsch
-- skip particle type 92 (string)
-- Charmed and beauty baryions (5122, 4122) are considered as stable consistent with
- mesons.
-
-Revision 1.10 2000/10/17 15:10:20 morsch
-Write first all the parent particles to the stack and then the final state particles.
-
-Revision 1.9 2000/10/17 13:38:59 morsch
-Protection against division by zero in EvaluateCrossSection() and KinematicSelection(..) (FCA)
-
-Revision 1.8 2000/10/17 12:46:31 morsch
-Protect EvaluateCrossSections() against division by zero.
-
-Revision 1.7 2000/10/02 21:28:06 fca
-Removal of useless dependecies via forward declarations
-
-Revision 1.6 2000/09/11 13:23:37 morsch
-Write last seed to file (fortran lun 50) and reed back from same lun using calls to
-luget_hijing and luset_hijing.
-
-Revision 1.5 2000/09/07 16:55:40 morsch
-fHijing->Initialize(); after change of parameters. (Dmitri Yurevitch Peressounko)
-
-Revision 1.4 2000/07/11 18:24:56 fca
-Coding convention corrections + few minor bug fixes
-
-Revision 1.3 2000/06/30 12:08:36 morsch
-In member data: char* replaced by TString, Init takes care of resizing the strings to
-8 characters required by Hijing.
-
-Revision 1.2 2000/06/15 14:15:05 morsch
-Add possibility for heavy flavor selection: charm and beauty.
-
-Revision 1.1 2000/06/09 20:47:27 morsch
-AliGenerator interface class to HIJING using THijing (test version)
-
-*/
-
-
+/* $Id$ */
// Generator using HIJING as an external generator
// The main HIJING options are accessable for the user through this interface.
#include "AliGenHijing.h"
#include "AliGenHijingEventHeader.h"
#include "AliRun.h"
+#include "AliHijingRndm.h"
-
- ClassImp(AliGenHijing)
+ClassImp(AliGenHijing)
AliGenHijing::AliGenHijing()
:AliGenMC()
fHijing = 0;
fDsigmaDb = 0;
fDnDb = 0;
+ AliHijingRndm::SetHijingRandom(GetRandom());
}
AliGenHijing::AliGenHijing(Int_t npart)
SetEnergyCMS();
SetImpactParameterRange();
- SetTarget();
- SetProjectile();
SetBoostLHC();
SetJetEtaRange();
SetJetPhiRange();
fDnDb = 0;
fPtMinJet = -2.5;
fRadiation = 3;
- fEventVertex.Set(3);
-//
+ //
SetSimpleJets();
SetNoGammas();
//
fParticles = new TClonesArray("TParticle",10000);
//
// Set random number generator
- sRandom = fRandom;
+ AliHijingRndm::SetHijingRandom(GetRandom());
fHijing = 0;
}
-AliGenHijing::AliGenHijing(const AliGenHijing & Hijing)
+AliGenHijing::AliGenHijing(const AliGenHijing & hijing):
+ AliGenMC(hijing)
{
// copy constructor
}
fAProjectile, fZProjectile, fATarget, fZTarget,
fMinImpactParam, fMaxImpactParam));
- fHijing=(THijing*) fgMCEvGen;
+ fHijing=(THijing*) fMCEvGen;
fHijing->SetIHPR2(2, fRadiation);
fHijing->SetIHPR2(3, fTrigger);
fHijing->SetIHPR2(6, fShadowing);
}
+ AliGenMC::Init();
//
// Initialize Hijing
Float_t polar[3] = {0,0,0};
Float_t origin[3] = {0,0,0};
Float_t origin0[3] = {0,0,0};
- Float_t p[3], random[6];
+ Float_t p[3];
Float_t tof;
// converts from mm/c to s
fTrials = 0;
for (j = 0;j < 3; j++) origin0[j] = fOrigin[j];
if(fVertexSmear == kPerEvent) {
- Float_t dv[3];
- dv[2] = 1.e10;
- while(TMath::Abs(dv[2]) > fCutVertexZ*fOsigma[2]) {
- Rndm(random,6);
- for (j=0; j < 3; j++) {
- dv[j] = fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())*
- TMath::Sqrt(-2*TMath::Log(random[2*j+1]));
- }
- }
- for (j=0; j < 3; j++) origin0[j] += dv[j];
- } else if (fVertexSmear == kPerTrack) {
-// fHijing->SetMSTP(151,0);
- for (j = 0; j < 3; j++) {
-// fHijing->SetPARP(151+j, fOsigma[j]*10.);
- }
- }
+ Vertex();
+ for (j=0; j < 3; j++) origin0[j] = fVertex[j];
+ }
+
while(1)
{
// Generate one event
// Get event vertex
//
TParticle * iparticle = (TParticle *) fParticles->At(0);
- fEventVertex[0] = origin0[0];
- fEventVertex[1] = origin0[1];
- fEventVertex[2] = origin0[2];
+ fVertex[0] = origin0[0];
+ fVertex[1] = origin0[1];
+ fVertex[2] = origin0[2];
//
// First select parent particles
imo = (mother->GetPdgCode() != 92) ? imo = newPos[imo] : -1;
} // if has mother
Bool_t tFlag = (fTrackIt && !hasDaughter);
- SetTrack(tFlag,imo,kf,p,origin,polar,
+ PushTrack(tFlag,imo,kf,p,origin,polar,
tof,kPNoProcess,nt, 1., ks);
KeepTrack(nt);
newPos[i] = nt;
}
-void AliGenHijing::Boost()
-{
-//
-// Boost cms into LHC lab frame
-//
- Double_t dy = - 0.5 * TMath::Log(Double_t(fZProjectile) * Double_t(fATarget) /
- (Double_t(fZTarget) * Double_t(fAProjectile)));
- Double_t beta = TMath::TanH(dy);
- Double_t gamma = 1./TMath::Sqrt(1.-beta*beta);
- Double_t gb = gamma * beta;
-
- printf("\n Boosting particles to lab frame %f %f %f", dy, beta, gamma);
-
- Int_t i;
- Int_t np = fParticles->GetEntriesFast();
- for (i = 0; i < np; i++)
- {
- TParticle* iparticle = (TParticle*) fParticles->At(i);
-
- Double_t e = iparticle->Energy();
- Double_t px = iparticle->Px();
- Double_t py = iparticle->Py();
- Double_t pz = iparticle->Pz();
-
- Double_t eb = gamma * e - gb * pz;
- Double_t pzb = -gb * e + gamma * pz;
-
- iparticle->SetMomentum(px, py, pzb, eb);
- }
-}
-
void AliGenHijing::MakeHeader()
{
// Bookkeeping for kinematic bias
((AliGenHijingEventHeader*) header)->SetTrials(fTrials);
// Event Vertex
- header->SetPrimaryVertex(fEventVertex);
- gAlice->SetGenEventHeader(header);
+ header->SetPrimaryVertex(fVertex);
+ if (gAlice) gAlice->SetGenEventHeader(header);
fCollisionGeometry = (AliGenHijingEventHeader*) header;
}
}
-
+void AliGenHijing::Copy(TObject &) const
+{
+ Fatal("Copy","Not implemented!\n");
+}
AliGenHijing& AliGenHijing::operator=(const AliGenHijing& rhs)
{
-// Assignment operator
- return *this;
+ rhs.Copy(*this);
+ return (*this);
}
-#ifndef WIN32
-# define rluget_hijing rluget_hijing_
-# define rluset_hijing rluset_hijing_
-# define rlu_hijing rlu_hijing_
-# define type_of_call
-#else
-# define rluget_hijing RLUGET_HIJING
-# define rluset_hijing RLUSET_HIJING
-# define rlu_hijing RLU_HIJING
-# define type_of_call _stdcall
-#endif
-
-
-extern "C" {
- void type_of_call rluget_hijing(Int_t & /*lfn*/, Int_t & /*move*/)
- {printf("Dummy version of rluget_hijing reached\n");}
-
- void type_of_call rluset_hijing(Int_t & /*lfn*/, Int_t & /*move*/)
- {printf("Dummy version of rluset_hijing reached\n");}
-
- Double_t type_of_call rlu_hijing(Int_t & /*idum*/)
- {
- Float_t r;
- do r=sRandom->Rndm(); while(0 >= r || r >= 1);
- return r;
- }
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff