X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TDPMjet%2FAliGenDPMjet.cxx;h=e2cf80bb1706d9b5180eb1a430a79e387b0c9f29;hb=66b7af3215a3a680e090fd5cdf3b161ab668ff8b;hp=71984fe9607b5146a69727e9d7dbafeb4b34daac;hpb=f2ba02a42969462f8cf4c473a3e4d07790edca37;p=u%2Fmrichter%2FAliRoot.git diff --git a/TDPMjet/AliGenDPMjet.cxx b/TDPMjet/AliGenDPMjet.cxx index 71984fe9607..e2cf80bb170 100644 --- a/TDPMjet/AliGenDPMjet.cxx +++ b/TDPMjet/AliGenDPMjet.cxx @@ -19,6 +19,7 @@ // Uses the TDPMjet implementation of TGenerator. #include +#include "DPMcommon.h" #include #include #include @@ -28,99 +29,175 @@ #include #include #include - +#include +#include "AliRunLoader.h" #include "AliGenDPMjet.h" #include "AliGenDPMjetEventHeader.h" -#include "AliPythia.h" #include "AliRun.h" #include "AliDpmJetRndm.h" +#include "AliIonPDGCodes.h" +#include "AliHeader.h" +#include "AliStack.h" +#include "AliMC.h" +#include "AliLog.h" - ClassImp(AliGenDPMjet) - +ClassImp(AliGenDPMjet) //______________________________________________________________________________ AliGenDPMjet::AliGenDPMjet() - :AliGenMC() + :AliGenMC(), + fBeamEn(0.), + fMinImpactParam(0.), + fMaxImpactParam(100.), + fICentr(0), + fSelectAll(0), + fFlavor(0), + fTrials(0), + fSpectators(1), + fSpecn(0), + fSpecp(0), + fDPMjet(0), + fNoGammas(0), + fLHC(0), + fPi0Decay(1), + fDecayAll(0), + fGenImpPar(0.), + fProcess(kDpmMb), + fTriggerParticle(0), + fTriggerEta(0.9), + fTriggerMinPt(-1), + fTriggerMaxPt(1000), + fTriggerMultiplicity(0), + fTriggerMultiplicityEta(0), + fTriggerMultiplicityPtMin(0), + fkTuneForDiff(0), + fProcDiff(0), + fFragmentation(kFALSE), + fHeader(AliGenDPMjetEventHeader("DPMJET")) + { // Constructor - fParticles = 0; - fDPMjet = 0; + fEnergyCMS = 5500.; AliDpmJetRndm::SetDpmJetRandom(GetRandom()); } //______________________________________________________________________________ AliGenDPMjet::AliGenDPMjet(Int_t npart) - :AliGenMC(npart) + :AliGenMC(npart), + fBeamEn(0.), + fMinImpactParam(0.), + fMaxImpactParam(100.), + fICentr(0), + fSelectAll(0), + fFlavor(0), + fTrials(0), + fSpectators(1), + fSpecn(0), + fSpecp(0), + fDPMjet(0), + fNoGammas(0), + fLHC(0), + fPi0Decay(1), + fDecayAll(0), + fGenImpPar(0.), + fProcess(kDpmMb), + fTriggerParticle(0), + fTriggerEta(0.9), + fTriggerMinPt(-1), + fTriggerMaxPt(1000), + fTriggerMultiplicity(0), + fTriggerMultiplicityEta(0), + fTriggerMultiplicityPtMin(0), + fkTuneForDiff(0), + fProcDiff(0), + fFragmentation(kFALSE), + fHeader(AliGenDPMjetEventHeader("DPMJET")) + + { // Default PbPb collisions at 5. 5 TeV // + fEnergyCMS = 5500.; fName = "DPMJET"; fTitle= "Particle Generator using DPMJET"; - - SetBeamEnergy(); - SetEnergyCMS(); SetTarget(); SetProjectile(); - SetCentral(); - SetImpactParameterRange(); - SetBoostLHC(); - - fKeep = 0; - fDecaysOff = 1; - fEvaluate = 0; - fSelectAll = 0; - fFlavor = 0; - fSpectators = 1; fVertex.Set(3); - - fParticles = new TClonesArray("TParticle",10000); - - // Set random number generator - fDPMjet = 0; - // Instance AliPythia - AliPythia::Instance(); AliDpmJetRndm::SetDpmJetRandom(GetRandom()); } +AliGenDPMjet::AliGenDPMjet(const AliGenDPMjet &/*Dpmjet*/) + :AliGenMC(), + fBeamEn(0.), + fMinImpactParam(0.), + fMaxImpactParam(100.), + fICentr(0), + fSelectAll(0), + fFlavor(0), + fTrials(0), + fSpectators(1), + fSpecn(0), + fSpecp(0), + fDPMjet(0), + fNoGammas(0), + fLHC(0), + fPi0Decay(1), + fDecayAll(0), + fGenImpPar(0.), + fProcess(kDpmMb), + fTriggerParticle(0), + fTriggerEta(0.9), + fTriggerMinPt(-1), + fTriggerMaxPt(1000), + fTriggerMultiplicity(0), + fTriggerMultiplicityEta(0), + fTriggerMultiplicityPtMin(0), + fkTuneForDiff(0), + fProcDiff(0), + fFragmentation(kFALSE), + fHeader(0x0) + + +{ + // Dummy copy constructor + fEnergyCMS = 5500.; +} //______________________________________________________________________________ AliGenDPMjet::~AliGenDPMjet() { // Destructor - delete fParticles; } - - //______________________________________________________________________________ void AliGenDPMjet::Init() { // Initialization - SetMC(new TDPMjet(fAProjectile, fZProjectile, fATarget, fZTarget, + if(fEnergyCMS>0. && fBeamEn<0.1) fBeamEn = fEnergyCMS/2; + SetMC(new TDPMjet(fProcess, fAProjectile, fZProjectile, fATarget, fZTarget, fBeamEn,fEnergyCMS)); - fDPMjet=(TDPMjet*) fgMCEvGen; - // + fDPMjet=(TDPMjet*) fMCEvGen; + if (fAProjectile == 1 && TMath::Abs(fZProjectile == 1)) fDPMjet->SetfIdp(1); + // **** Flag to force central production // fICentr=1. central production forced // fICentr<0 && fICentr>-100 -> bmin = fMinImpactParam, bmax = fMaxImpactParam // fICentr<-99 -> fraction of x-sec. = XSFRAC // fICentr=-1. -> evaporation/fzc suppressed - // fICentr<-1. -> evaporation/fzc suppressed + // fICentr<-1. -> evaporation/fzc allowed fDPMjet->SetfFCentr(fICentr); - fDPMjet->SetbRange(fMinImpactParam,fMaxImpactParam); + + fDPMjet->SetbRange(fMinImpactParam, fMaxImpactParam); + fDPMjet->SetPi0Decay(fPi0Decay); + fDPMjet->SetDecayAll(fDecayAll); + fDPMjet->SetFragmentProd(fFragmentation); // // Initialize DPMjet // fDPMjet->Initialize(); - //if (fEvaluate) EvaluateCrossSections(); - - // Initialize AliIonPDGCodes to define ion PDG codes - /*AliIonPDGCodes *PDGcodes = new AliIonPDGCodes(); - PDGcodes->AddParticlesToPdgDataBase(); - PDGcodes->MapPDGGEant3Codes();*/ } @@ -129,33 +206,20 @@ void AliGenDPMjet::Generate() { // Generate one event - 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]; + Double_t polar[3] = {0,0,0}; + Double_t origin[3] = {0,0,0}; + Double_t p[4] = {0}; Float_t tof; // converts from mm/c to s const Float_t kconv = 0.001/2.999792458e8; Int_t nt = 0; Int_t jev = 0; - Int_t j, kf, ks, imo; + Int_t kf, ks, imo; kf = 0; - 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]; - } + // Set collision vertex position + if (fVertexSmear == kPerEvent) Vertex(); while(1) { @@ -165,18 +229,72 @@ void AliGenDPMjet::Generate() fSpecp = 0; // -------------------------------------------------------------------------- fDPMjet->GenerateEvent(); + fTrials++; - fDPMjet->ImportParticles(fParticles,"All"); + fDPMjet->ImportParticles(&fParticles,"All"); if (fLHC) Boost(); // Temporaneo fGenImpPar = fDPMjet->GetBImpac(); - - Int_t np = fParticles->GetEntriesFast(); - printf("\n **************************************************%d\n",np); - Int_t nc=0; - if (np==0) continue; + + if(TMath::Abs(fXingAngleY) > 1.e-10) BeamCrossAngle(); + + Int_t np = fParticles.GetEntriesFast(); + // + // Multiplicity Trigger + if (fTriggerMultiplicity > 0) { + Int_t multiplicity = 0; + for (Int_t i = 0; i < np; i++) { + TParticle * iparticle = (TParticle *) fParticles.At(i); + + Int_t statusCode = iparticle->GetStatusCode(); + + // Initial state particle + if (statusCode != 1) + continue; + // eta cut + if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) + continue; + // pt cut + if (iparticle->Pt() < fTriggerMultiplicityPtMin) + continue; + + TParticlePDG* pdgPart = iparticle->GetPDG(); + if (pdgPart && pdgPart->Charge() == 0) + continue; + ++multiplicity; + } + // + // + if (multiplicity < fTriggerMultiplicity) continue; + Printf("Triggered on event with multiplicity of %d >= %d", multiplicity, fTriggerMultiplicity); + } + + //Trigger on the presence of a given particle in some phase space + if (fTriggerParticle) { + Bool_t triggered = kFALSE; + for (Long_t i = 0; i < np; i++) { + TParticle * iparticle = (TParticle *) fParticles.At(i); + kf = CheckPDGCode(iparticle->GetPdgCode()); + if (kf != fTriggerParticle) continue; + if (iparticle->Pt() == 0.) continue; + if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; + if ( iparticle->Pt() > fTriggerMaxPt || iparticle->Pt() < fTriggerMinPt ) continue; + triggered = kTRUE; + break; + } + if (!triggered) continue; + } + + if(fkTuneForDiff && ( (TMath::Abs(fEnergyCMS - 900) < 1) || (TMath::Abs(fEnergyCMS - 2760) < 1) || (TMath::Abs(fEnergyCMS - 7000) < 1)) ) { + if(!CheckDiffraction() ) continue; + } + + + Int_t nc = 0; + if (np == 0) continue; + Int_t i; Int_t* newPos = new Int_t[np]; Int_t* pSelected = new Int_t[np]; @@ -186,19 +304,10 @@ void AliGenDPMjet::Generate() pSelected[i] = 0; } -// Get event vertex - - //TParticle *iparticle = (TParticle*) fParticles->At(0); - fVertex[0] = origin0[0]; - fVertex[1] = origin0[1]; - fVertex[2] = origin0[2]; - //for(int jj=0; jj<3; jj++) printf(" fEventVertex[%d] = %f\n",jj,fEventVertex[jj]); - // First select parent particles for (i = 0; iAt(i); - //if(!iparticle) iparticle->Print(""); + TParticle *iparticle = (TParticle *) fParticles.At(i); // Is this a parent particle ? @@ -208,15 +317,17 @@ void AliGenDPMjet::Generate() Bool_t hasSelectedDaughters = kFALSE; kf = iparticle->GetPdgCode(); - if (kf == 92) continue; + if (kf == 92 || kf == 99999) continue; ks = iparticle->GetStatusCode(); // No initial state partons if (ks==21) continue; - if (!fSelectAll) selected = KinematicSelection(iparticle, 0) && SelectFlavor(kf); + + hasSelectedDaughters = DaughtersSelection(iparticle); + // Put particle on the stack if it is either selected or // it is the mother of at least one seleted particle @@ -230,8 +341,7 @@ void AliGenDPMjet::Generate() for (i=0; iAt(i); - //if(!iparticle) printf(" i = %d -> iparticle==0\n",i); + TParticle *iparticle = (TParticle *) fParticles.At(i); // Is this a final state particle ? @@ -265,154 +375,58 @@ void AliGenDPMjet::Generate() // Write particles to stack for (i = 0; iAt(i); + TParticle * iparticle = (TParticle *) fParticles.At(i); Bool_t hasMother = (iparticle->GetFirstMother()>=0); - Bool_t hasDaughter = (iparticle->GetFirstDaughter()>=0); - if (pSelected[i]) { kf = iparticle->GetPdgCode(); - if(kf==99999) continue; ks = iparticle->GetStatusCode(); p[0] = iparticle->Px(); p[1] = iparticle->Py(); p[2] = iparticle->Pz(); - origin[0] = origin0[0]+iparticle->Vx()/10; - origin[1] = origin0[1]+iparticle->Vy()/10; - origin[2] = origin0[2]+iparticle->Vz()/10; - tof = kconv*iparticle->T(); + p[3] = iparticle->Energy(); + origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] + origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] + origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] + + tof = fTime + kconv*iparticle->T(); imo = -1; TParticle* mother = 0; if (hasMother) { imo = iparticle->GetFirstMother(); - mother = (TParticle *) fParticles->At(imo); - imo = (mother->GetPdgCode() != 92) ? imo = newPos[imo] : -1; + mother = (TParticle *) fParticles.At(imo); + imo = (mother->GetPdgCode() != 92 && mother->GetPdgCode() != 99999) ? newPos[imo] : -1; } // if has mother - // --- Nucleons and photons from nucleus evaporation - //if(ks==-1 && (kf==2212 || kf==2112 || kf==22)) imo=-1; - - // --- Offset added to nuclei, alpha particles, deuteron - // --- and triton PDG codes (according to TGeant3 PDG codes) - //if(ks==1000 || ks==1001) kf += 10000000; - if(kf>10000) kf += 10000000; - - if(kf>10000 || ks==1000 || ks==1001) printf(" kf = %d, ks = %d imo = %d \n", kf,ks,imo); - - Bool_t tFlag = (fTrackIt && (ks == 1)); -/* // --- Particle NOT to be tracked: - // --- (1) chains from valence quark system (idhkk=99999) - // --- (2) quark, diquarks and gluons (idhkk=1->8,...,idhkk=21) - if(kf==99999 || kf==1 || kf==2 || kf==3 || kf==4 || kf==5 || - kf==6 || kf==7 || kf==8 || kf==21 || - kf==1103 || kf==2101 || kf==2103 || kf==2203 || kf==3101 || - kf==3103 || kf==3201 || kf==3203 || kf==3303 || kf==4101 || - kf==4103 || kf==4201 || kf==4203 || kf==4301 || kf==4303 || - kf==4403 || kf==5101 || kf==5103 || kf==5201 || kf==5203 || - kf==5301 || kf==5303 || kf==5401 || kf==5403 || kf==5503) - tFlag=kFALSE; -*/ - SetTrack(tFlag,imo,kf,p,origin,polar,tof,kPNoProcess,nt, 1., ks); + Bool_t tFlag = (fTrackIt && (ks==1 || ks==-1)); + //printf(" AliGemDPMJet->PushTrack: kf %d ks %d flag %d\n",kf,ks,tFlag); + if(kf>10000 && (ks==-1 || ks==1000 || ks==1001)) kf += 1000000000; + PushTrack(tFlag, imo, kf, + p[0], p[1], p[2], p[3], + origin[0], origin[1], origin[2], tof, + polar[0], polar[1], polar[2], + kPNoProcess, nt, 1., ks); KeepTrack(nt); newPos[i] = nt; } // if selected } // particle loop delete[] newPos; delete[] pSelected; - - printf("\n I've put %i particles on the stack \n",nc); if (nc>0) { jev += nc; if (jev >= fNpart || fNpart == -1) { - printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev); break; } - printf("\n Not breaking ### Trials: %i %i %i\n",fTrials, fNpart, jev); } } // event loop MakeHeader(); SetHighWaterMark(nt); } - -//______________________________________________________________________________ -void AliGenDPMjet::KeepFullEvent() -{ - fKeep=1; -} - - -//______________________________________________________________________________ -/*void AliGenDPMjet::EvaluateCrossSections() -{ -// Glauber Calculation of geometrical x-section -// - Float_t xTot = 0.; // barn - Float_t xTotHard = 0.; // barn - Float_t xPart = 0.; // barn - Float_t xPartHard = 0.; // barn - Float_t sigmaHard = 0.1; // mbarn - Float_t bMin = 0.; - Float_t bMax = fDPMjet->GetProjRadius()+fDPMjet->GetTargRadius(); - const Float_t kdib = 0.2; - Int_t kMax = Int_t((bMax-bMin)/kdib)+1; - - - printf("\n Projectile Radius (fm): %f \n",fDPMjet->GetProjRadius()); - printf("\n Target Radius (fm): %f \n",fDPMjet->GetTargRadius()); - Int_t i; - Float_t oldvalue= 0.; - - Float_t* b = new Float_t[kMax]; - Float_t* si1 = new Float_t[kMax]; - Float_t* si2 = new Float_t[kMax]; - - for (i = 0; i < kMax; i++) - { - Float_t xb = bMin+i*kdib; - Float_t ov; - ov=fDPMjet->Profile(xb); - // ATT!->Manca la x-sec anel. nucleone-nucleone - Float_t gb = 2.*0.01*fDPMjet->TMath::Pi()*kdib*xb*(1.-TMath::Exp(-fDPMjet->GetXSFrac()*ov)); - Float_t gbh = 2.*0.01*fDPMjet->TMath::Pi()*kdib*xb*sigmaHard*ov; - xTot+=gb; - xTotHard += gbh; - if (xb > fMinImpactParam && xb < fMaxImpactParam) - { - xPart += gb; - xPartHard += gbh; - } - - if(oldvalue) if ((xTot-oldvalue)/oldvalue<0.0001) break; - oldvalue = xTot; - printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot); - printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard); - if (i>0) { - si1[i] = gb/kdib; - si2[i] = gbh/gb; - b[i] = xb; - } - } - - printf("\n Total cross section (barn): %f \n",xTot); - printf("\n Hard cross section (barn): %f \n \n",xTotHard); - printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.); - printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.); - -// Store result as a graph - b[0] = 0; - si1[0] = 0; - si2[0]=si2[1]; - - fDsigmaDb = new TGraph(i, b, si1); - fDnDb = new TGraph(i, b, si2); -}*/ - - //______________________________________________________________________________ Bool_t AliGenDPMjet::DaughtersSelection(TParticle* iparticle) { @@ -429,7 +443,7 @@ Bool_t AliGenDPMjet::DaughtersSelection(TParticle* iparticle) imin = iparticle->GetFirstDaughter(); imax = iparticle->GetLastDaughter(); for (i = imin; i <= imax; i++){ - TParticle * jparticle = (TParticle *) fParticles->At(i); + TParticle * jparticle = (TParticle *) fParticles.At(i); Int_t ip = jparticle->GetPdgCode(); if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) { selected=kTRUE; break; @@ -473,83 +487,716 @@ Bool_t AliGenDPMjet::Stable(TParticle* particle) { // Return true for a stable particle // - -// if (particle->GetFirstDaughter() < 0 ) return kTRUE; - if (particle->GetStatusCode() == 1) return kTRUE; + int st = particle->GetStatusCode(); + if(st == 1 || st == -1) return kTRUE; else return kFALSE; } +//______________________________________________________________________________ +void AliGenDPMjet::MakeHeader() +{ +// Builds the event header, to be called after each event + fHeader.SetNProduced(fDPMjet->GetNumStablePc()); + fHeader.SetImpactParameter(fDPMjet->GetBImpac()); + fHeader.SetTotalEnergy(fDPMjet->GetTotEnergy()); + fHeader.SetParticipants(fDPMjet->GetProjParticipants(), + fDPMjet->GetTargParticipants()); + + fHeader.SetCollisions(DTGLCP.ncp, DTGLCP.nct, + fDPMjet->GetProjWounded(),fDPMjet->GetTargWounded()); + + if(fProcDiff>0) fHeader.SetProcessType(fProcDiff); + else fHeader.SetProcessType(fDPMjet->GetProcessCode()); + + // Bookkeeping for kinematic bias + fHeader.SetTrials(fTrials); + // Event Vertex + fHeader.SetPrimaryVertex(fVertex); + fHeader.SetInteractionTime(fTime); + fHeader.SetNDiffractive(POEVT1.nsd1, POEVT1.nsd2, POEVT1.ndd); +// gAlice->SetGenEventHeader(fHeader); + AddHeader(&fHeader); + fCollisionGeometry = &fHeader; +} + +//______________________________________________________________________________ +/*void AliGenDPMjet::AddHeader(AliGenEventHeader* fHeader) +{ + // Add fHeader to container or runloader + if (fContainer) { + fContainer->AddHeader(fHeader); + } else { + AliRunLoader::Instance()->GetHeader()->SetGenEventHeader(fHeader); + } +}*/ //______________________________________________________________________________ -/*void AliGenDPMjet::Boost(TClonesArray* particles) +AliGenDPMjet& AliGenDPMjet::operator=(const AliGenDPMjet& /*rhs*/) +{ +// Assignment operator + return *this; +} + + +//______________________________________________________________________________ +void AliGenDPMjet::FinishRun() +{ + // Print run statistics + fDPMjet->Dt_Dtuout(); +} + + +//______________________________________________________________________________ +Bool_t AliGenDPMjet::CheckDiffraction() { -// -// 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); + // printf("AAA\n"); + + Int_t np = fParticles.GetEntriesFast(); + + Int_t iPart1=-1; + Int_t iPart2=-1; + + Double_t y1 = 1e10; + Double_t y2 = -1e10; + + const Int_t kNstable=20; + const Int_t pdgStable[20] = { + 22, // Photon + 11, // Electron + 12, // Electron Neutrino + 13, // Muon + 14, // Muon Neutrino + 15, // Tau + 16, // Tau Neutrino + 211, // Pion + 321, // Kaon + 311, // K0 + 130, // K0s + 310, // K0l + 2212, // Proton + 2112, // Neutron + 3122, // Lambda_0 + 3112, // Sigma Minus + 3222, // Sigma Plus + 3312, // Xsi Minus + 3322, // Xsi0 + 3334 // Omega + }; - Int_t i; - Int_t np = particles->GetEntriesFast(); - for (i = 0; i < np; i++) - { - TParticle* iparticle = (TParticle*) fParticles->At(i); + for (Int_t i = 0; i < np; i++) { + TParticle * part = (TParticle *) fParticles.At(i); + + Int_t statusCode = part->GetStatusCode(); + + // Initial state particle + if (statusCode != 1) + continue; + + Int_t pdg = TMath::Abs(part->GetPdgCode()); + Bool_t isStable = kFALSE; + for (Int_t i1 = 0; i1 < kNstable; i1++) { + if (pdg == pdgStable[i1]) { + isStable = kTRUE; + break; + } + } + if(!isStable) + continue; + + Double_t y = part->Y(); + + if (y < y1) + { + y1 = y; + iPart1 = i; + } + if (y > y2) + { + y2 = y; + iPart2 = i; + } + } + + if(iPart1<0 || iPart2<0) return kFALSE; + + y1=TMath::Abs(y1); + y2=TMath::Abs(y2); + + TParticle * part1 = (TParticle *) fParticles.At(iPart1); + TParticle * part2 = (TParticle *) fParticles.At(iPart2); + + Int_t pdg1 = part1->GetPdgCode(); + Int_t pdg2 = part2->GetPdgCode(); + + + Int_t iPart = -1; + if (pdg1 == 2212 && pdg2 == 2212) + { + if(y1 > y2) + iPart = iPart1; + else if(y1 < y2) + iPart = iPart2; + else { + iPart = iPart1; + if((AliDpmJetRndm::GetDpmJetRandom())->Uniform(0.,1.)>0.5) iPart = iPart2; + } + } + else if (pdg1 == 2212) + iPart = iPart1; + else if (pdg2 == 2212) + iPart = iPart2; - 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); + + + Double_t M=-1.; + if(iPart>0) { + TParticle * part = (TParticle *) fParticles.At(iPart); + Double_t E= part->Energy(); + Double_t P= part->P(); + Double_t M2 = (fEnergyCMS-E-P)*(fEnergyCMS-E+P); + if(M2<0) return kFALSE; + M= TMath::Sqrt(M2); + } + + Double_t Mmin, Mmax, wSD, wDD, wND; + + if(!GetWeightsDiffraction(M, Mmin, Mmax, wSD, wDD, wND)) return kFALSE; + if(M>-1 && MMmax) M=-1; + + + Int_t procType=fDPMjet->GetProcessCode();//fPythia->GetMSTI(1); + if(procType== 4) return kFALSE; + Int_t proc0=2; + if(procType== 7) proc0=1; + if(procType== 5 || procType== 6) proc0=0; + + + Int_t proc=2; + if(M>0) proc=0; + else if(proc0==1) proc=1; + + if(proc==1 && (AliDpmJetRndm::GetDpmJetRandom())->Uniform(0.,1.) > wDD) return kFALSE; + if(proc==2 && (AliDpmJetRndm::GetDpmJetRandom())->Uniform(0.,1.) > wND) return kFALSE; + + + + if(proc!=0) { + if(proc0!=0) fProcDiff = procType; + else fProcDiff = 1; + return kTRUE; } -}*/ + if(wSD<0) AliError("wSD<0 ! \n"); + if((AliDpmJetRndm::GetDpmJetRandom())->Uniform(0.,1.)> wSD) return kFALSE; -//______________________________________________________________________________ -void AliGenDPMjet::MakeHeader() -{ -// Builds the event header, to be called after each event - AliGenEventHeader* header = new AliGenDPMjetEventHeader("DPMJET"); - ((AliGenDPMjetEventHeader*) header)->SetNProduced(fDPMjet->GetNumStablePc()); - ((AliGenDPMjetEventHeader*) header)->SetImpactParameter(fDPMjet->GetBImpac()); - ((AliGenDPMjetEventHeader*) header)->SetTotalEnergy(fDPMjet->GetTotEnergy()); -// ((AliGenDPMjetEventHeader*) header)->SetWounded(fDPMjet->GetProjWounded(), -// fDPMjet->GetTargWounded()); - ((AliGenDPMjetEventHeader*) header)->SetParticipants(fDPMjet->GetfIp(), - fDPMjet->GetfIt()); - /*((AliGenDPMjetEventHeader*) header)->SetCollisions(fDPMjet->GetN0(), - fDPMjet->GetN01(), - fDPMjet->GetN10(), - fDPMjet->GetN11());*/ - ((AliGenDPMjetEventHeader*) header)->SetSpectators(fSpecn, fSpecp); - -// Bookkeeping for kinematic bias - ((AliGenDPMjetEventHeader*) header)->SetTrials(fTrials); -// Event Vertex - header->SetPrimaryVertex(fVertex); - gAlice->SetGenEventHeader(header); -} + // printf("iPart = %d\n", iPart); + if(iPart==iPart1) fProcDiff=5; + else if(iPart==iPart2) fProcDiff=6; + else { + printf("EROOR: iPart!=iPart1 && iPart!=iPart2\n"); + } -//______________________________________________________________________________ -AliGenDPMjet& AliGenDPMjet::operator=(const AliGenDPMjet& rhs) + return kTRUE; +} + +// ------------------------------------------------------- +void AliGenDPMjet::SetIonPDGCodes() { -// Assignment operator - return *this; + // Defining PDG codes for the ions + AliIonPDGCodes *pdgcodes = new AliIonPDGCodes(); + pdgcodes->AddParticlesToPdgDataBase(); } +// ------------------------------------------------------- +Bool_t AliGenDPMjet::GetWeightsDiffraction(Double_t M, Double_t &Mmin, Double_t &Mmax, + Double_t &wSD, Double_t &wDD, Double_t &wND) +{ + + if(TMath::Abs(fEnergyCMS-900)<1 ){ +const Int_t nbin=400; +Double_t bin[]={ +1.080000, 1.577300, 2.074600, 2.571900, 3.069200, 3.566500, +4.063800, 4.561100, 5.058400, 5.555700, 6.053000, 6.550300, +7.047600, 7.544900, 8.042200, 8.539500, 9.036800, 9.534100, +10.031400, 10.528700, 11.026000, 11.523300, 12.020600, 12.517900, +13.015200, 13.512500, 14.009800, 14.507100, 15.004400, 15.501700, +15.999000, 16.496300, 16.993600, 17.490900, 17.988200, 18.485500, +18.982800, 19.480100, 19.977400, 20.474700, 20.972000, 21.469300, +21.966600, 22.463900, 22.961200, 23.458500, 23.955800, 24.453100, +24.950400, 25.447700, 25.945000, 26.442300, 26.939600, 27.436900, +27.934200, 28.431500, 28.928800, 29.426100, 29.923400, 30.420700, +30.918000, 31.415300, 31.912600, 32.409900, 32.907200, 33.404500, +33.901800, 34.399100, 34.896400, 35.393700, 35.891000, 36.388300, +36.885600, 37.382900, 37.880200, 38.377500, 38.874800, 39.372100, +39.869400, 40.366700, 40.864000, 41.361300, 41.858600, 42.355900, +42.853200, 43.350500, 43.847800, 44.345100, 44.842400, 45.339700, +45.837000, 46.334300, 46.831600, 47.328900, 47.826200, 48.323500, +48.820800, 49.318100, 49.815400, 50.312700, 50.810000, 51.307300, +51.804600, 52.301900, 52.799200, 53.296500, 53.793800, 54.291100, +54.788400, 55.285700, 55.783000, 56.280300, 56.777600, 57.274900, +57.772200, 58.269500, 58.766800, 59.264100, 59.761400, 60.258700, +60.756000, 61.253300, 61.750600, 62.247900, 62.745200, 63.242500, +63.739800, 64.237100, 64.734400, 65.231700, 65.729000, 66.226300, +66.723600, 67.220900, 67.718200, 68.215500, 68.712800, 69.210100, +69.707400, 70.204700, 70.702000, 71.199300, 71.696600, 72.193900, +72.691200, 73.188500, 73.685800, 74.183100, 74.680400, 75.177700, +75.675000, 76.172300, 76.669600, 77.166900, 77.664200, 78.161500, +78.658800, 79.156100, 79.653400, 80.150700, 80.648000, 81.145300, +81.642600, 82.139900, 82.637200, 83.134500, 83.631800, 84.129100, +84.626400, 85.123700, 85.621000, 86.118300, 86.615600, 87.112900, +87.610200, 88.107500, 88.604800, 89.102100, 89.599400, 90.096700, +90.594000, 91.091300, 91.588600, 92.085900, 92.583200, 93.080500, +93.577800, 94.075100, 94.572400, 95.069700, 95.567000, 96.064300, +96.561600, 97.058900, 97.556200, 98.053500, 98.550800, 99.048100, +99.545400, 100.042700, 100.540000, 101.037300, 101.534600, 102.031900, +102.529200, 103.026500, 103.523800, 104.021100, 104.518400, 105.015700, +105.513000, 106.010300, 106.507600, 107.004900, 107.502200, 107.999500, +108.496800, 108.994100, 109.491400, 109.988700, 110.486000, 110.983300, +111.480600, 111.977900, 112.475200, 112.972500, 113.469800, 113.967100, +114.464400, 114.961700, 115.459000, 115.956300, 116.453600, 116.950900, +117.448200, 117.945500, 118.442800, 118.940100, 119.437400, 119.934700, +120.432000, 120.929300, 121.426600, 121.923900, 122.421200, 122.918500, +123.415800, 123.913100, 124.410400, 124.907700, 125.405000, 125.902300, +126.399600, 126.896900, 127.394200, 127.891500, 128.388800, 128.886100, +129.383400, 129.880700, 130.378000, 130.875300, 131.372600, 131.869900, +132.367200, 132.864500, 133.361800, 133.859100, 134.356400, 134.853700, +135.351000, 135.848300, 136.345600, 136.842900, 137.340200, 137.837500, +138.334800, 138.832100, 139.329400, 139.826700, 140.324000, 140.821300, +141.318600, 141.815900, 142.313200, 142.810500, 143.307800, 143.805100, +144.302400, 144.799700, 145.297000, 145.794300, 146.291600, 146.788900, +147.286200, 147.783500, 148.280800, 148.778100, 149.275400, 149.772700, +150.270000, 150.767300, 151.264600, 151.761900, 152.259200, 152.756500, +153.253800, 153.751100, 154.248400, 154.745700, 155.243000, 155.740300, +156.237600, 156.734900, 157.232200, 157.729500, 158.226800, 158.724100, +159.221400, 159.718700, 160.216000, 160.713300, 161.210600, 161.707900, +162.205200, 162.702500, 163.199800, 163.697100, 164.194400, 164.691700, +165.189000, 165.686300, 166.183600, 166.680900, 167.178200, 167.675500, +168.172800, 168.670100, 169.167400, 169.664700, 170.162000, 170.659300, +171.156600, 171.653900, 172.151200, 172.648500, 173.145800, 173.643100, +174.140400, 174.637700, 175.135000, 175.632300, 176.129600, 176.626900, +177.124200, 177.621500, 178.118800, 178.616100, 179.113400, 179.610700, +180.108000, 180.605300, 181.102600, 181.599900, 182.097200, 182.594500, +183.091800, 183.589100, 184.086400, 184.583700, 185.081000, 185.578300, +186.075600, 186.572900, 187.070200, 187.567500, 188.064800, 188.562100, +189.059400, 189.556700, 190.054000, 190.551300, 191.048600, 191.545900, +192.043200, 192.540500, 193.037800, 193.535100, 194.032400, 194.529700, +195.027000, 195.524300, 196.021600, 196.518900, 197.016200, 197.513500, +198.010800, 198.508100, 199.005400, 199.502700, 200.000000}; +Double_t w[]={ +1.000000, 0.389079, 0.326612, 0.356363, 0.310726, 0.264037, +0.253810, 0.224655, 0.207990, 0.198149, 0.186803, 0.180209, +0.178928, 0.161772, 0.162314, 0.158409, 0.148379, 0.143557, +0.140357, 0.136272, 0.136957, 0.136606, 0.129376, 0.127671, +0.128406, 0.132239, 0.119311, 0.130227, 0.130233, 0.123312, +0.115257, 0.120105, 0.119733, 0.117116, 0.110096, 0.117509, +0.109149, 0.114372, 0.100322, 0.106227, 0.108696, 0.110352, +0.106748, 0.101475, 0.101837, 0.098585, 0.094433, 0.100148, +0.096505, 0.100155, 0.103526, 0.098161, 0.093647, 0.100121, +0.097426, 0.093414, 0.090241, 0.097228, 0.098098, 0.098340, +0.096779, 0.099265, 0.095101, 0.090342, 0.097469, 0.090663, +0.093422, 0.093103, 0.089648, 0.096923, 0.088079, 0.089360, +0.097772, 0.092932, 0.093554, 0.085784, 0.096395, 0.096304, +0.090183, 0.089255, 0.090265, 0.086262, 0.087044, 0.088965, +0.085825, 0.095073, 0.085933, 0.091005, 0.091707, 0.092428, +0.091689, 0.091224, 0.095256, 0.083407, 0.087983, 0.090320, +0.081580, 0.088077, 0.083478, 0.091309, 0.083734, 0.089906, +0.100155, 0.092728, 0.086542, 0.078091, 0.085261, 0.094302, +0.078063, 0.090070, 0.086566, 0.095020, 0.082124, 0.084791, +0.090624, 0.090236, 0.086344, 0.085706, 0.085913, 0.083107, +0.092557, 0.081144, 0.091254, 0.096139, 0.079458, 0.088124, +0.088777, 0.076652, 0.085168, 0.082326, 0.080435, 0.085022, +0.085693, 0.093957, 0.088134, 0.082347, 0.082139, 0.090980, +0.078397, 0.093595, 0.091562, 0.081789, 0.085026, 0.080868, +0.083455, 0.084590, 0.084124, 0.081486, 0.087242, 0.080928, +0.096392, 0.078324, 0.092093, 0.074267, 0.082925, 0.090717, +0.081467, 0.080435, 0.078825, 0.075843, 0.088940, 0.081451, +0.096047, 0.088102, 0.091710, 0.095208, 0.086160, 0.091305, +0.085406, 0.094432, 0.078227, 0.099870, 0.094140, 0.080130, +0.090707, 0.083268, 0.082222, 0.088767, 0.084477, 0.088069, +0.089382, 0.086164, 0.089123, 0.092799, 0.076710, 0.090727, +0.077097, 0.099905, 0.089733, 0.088101, 0.093705, 0.089215, +0.085110, 0.086032, 0.083719, 0.079693, 0.088116, 0.090519, +0.091150, 0.090855, 0.090547, 0.077773, 0.081914, 0.080864, +0.082935, 0.092952, 0.079390, 0.080255, 0.091123, 0.091331, +0.095160, 0.089343, 0.083353, 0.087445, 0.094036, 0.084719, +0.099665, 0.085104, 0.100912, 0.085958, 0.083972, 0.098284, +0.078318, 0.082042, 0.088007, 0.085469, 0.089984, 0.081181, +0.098850, 0.086409, 0.089070, 0.081579, 0.089622, 0.089396, +0.093922, 0.089472, 0.090806, 0.075034, 0.090346, 0.083871, +0.086931, 0.089207, 0.094425, 0.087830, 0.079537, 0.097316, +0.096513, 0.092264, 0.082211, 0.083841, 0.081861, 0.092591, +0.077785, 0.079646, 0.093721, 0.090735, 0.086910, 0.075837, +0.090729, 0.092800, 0.098704, 0.092441, 0.086404, 0.089344, +0.083650, 0.082569, 0.085753, 0.091430, 0.085460, 0.095210, +0.083226, 0.094882, 0.084856, 0.093350, 0.084579, 0.096744, +0.099211, 0.085142, 0.085499, 0.083395, 0.088352, 0.110418, +0.093788, 0.096140, 0.082758, 0.097145, 0.089170, 0.090720, +0.084708, 0.095927, 0.090330, 0.074239, 0.089532, 0.090514, +0.089823, 0.089709, 0.101840, 0.082676, 0.087157, 0.079221, +0.096460, 0.108192, 0.088904, 0.084510, 0.096624, 0.099242, +0.094470, 0.092473, 0.091745, 0.090439, 0.095316, 0.087963, +0.096400, 0.089479, 0.094880, 0.085964, 0.092775, 0.083200, +0.095133, 0.090079, 0.088828, 0.087600, 0.094123, 0.089135, +0.082617, 0.085109, 0.114091, 0.096331, 0.108465, 0.080318, +0.106576, 0.089671, 0.092023, 0.090722, 0.086603, 0.091788, +0.098375, 0.082712, 0.102681, 0.098869, 0.089051, 0.109972, +0.080440, 0.097860, 0.093074, 0.097028, 0.107826, 0.117152, +0.090968, 0.096790, 0.096725, 0.094641, 0.089535, 0.092561, +0.095828, 0.084320, 0.089942, 0.105476, 0.087495, 0.089805, +0.092238, 0.094141, 0.104390, 0.082958, 0.097449, 0.099594, +0.092640, 0.097332, 0.093223, 0.100183, 0.092511, 0.087035, +0.088741, 0.097856, 0.116682, 0.091732, 0.097753, 0.094283, +0.094235, 0.082016, 0.098370, 0.085676, 0.104529, 0.087319, +0.090289, 0.105314, 0.103634, 0.101261, 0.092764, 0.098217, +0.098939, 0.096071, 0.096071, 0.094027, 0.092713, 0.089542, +0.112293, 0.112293, 0.089531, 0.087752}; +wDD = 0.188264; +wND = 0.102252; +wSD = -1; + + Mmin = bin[0]; + Mmax = bin[nbin]; + if(MMmax) return kTRUE; + + Int_t ibin=nbin-1; + for(Int_t i=1; i<=nbin; i++) + if(M<=bin[i]) { + ibin=i-1; + // printf("Mi> %f && Mi< %f\n", bin[i-1], bin[i]); + break; + } + wSD=w[ibin]; + return kTRUE; + + } + else if(TMath::Abs(fEnergyCMS-2760)<1 ){ + +const Int_t nbin=400; +Double_t bin[]={ +1.080000, 1.577300, 2.074600, 2.571900, 3.069200, 3.566500, +4.063800, 4.561100, 5.058400, 5.555700, 6.053000, 6.550300, +7.047600, 7.544900, 8.042200, 8.539500, 9.036800, 9.534100, +10.031400, 10.528700, 11.026000, 11.523300, 12.020600, 12.517900, +13.015200, 13.512500, 14.009800, 14.507100, 15.004400, 15.501700, +15.999000, 16.496300, 16.993600, 17.490900, 17.988200, 18.485500, +18.982800, 19.480100, 19.977400, 20.474700, 20.972000, 21.469300, +21.966600, 22.463900, 22.961200, 23.458500, 23.955800, 24.453100, +24.950400, 25.447700, 25.945000, 26.442300, 26.939600, 27.436900, +27.934200, 28.431500, 28.928800, 29.426100, 29.923400, 30.420700, +30.918000, 31.415300, 31.912600, 32.409900, 32.907200, 33.404500, +33.901800, 34.399100, 34.896400, 35.393700, 35.891000, 36.388300, +36.885600, 37.382900, 37.880200, 38.377500, 38.874800, 39.372100, +39.869400, 40.366700, 40.864000, 41.361300, 41.858600, 42.355900, +42.853200, 43.350500, 43.847800, 44.345100, 44.842400, 45.339700, +45.837000, 46.334300, 46.831600, 47.328900, 47.826200, 48.323500, +48.820800, 49.318100, 49.815400, 50.312700, 50.810000, 51.307300, +51.804600, 52.301900, 52.799200, 53.296500, 53.793800, 54.291100, +54.788400, 55.285700, 55.783000, 56.280300, 56.777600, 57.274900, +57.772200, 58.269500, 58.766800, 59.264100, 59.761400, 60.258700, +60.756000, 61.253300, 61.750600, 62.247900, 62.745200, 63.242500, +63.739800, 64.237100, 64.734400, 65.231700, 65.729000, 66.226300, +66.723600, 67.220900, 67.718200, 68.215500, 68.712800, 69.210100, +69.707400, 70.204700, 70.702000, 71.199300, 71.696600, 72.193900, +72.691200, 73.188500, 73.685800, 74.183100, 74.680400, 75.177700, +75.675000, 76.172300, 76.669600, 77.166900, 77.664200, 78.161500, +78.658800, 79.156100, 79.653400, 80.150700, 80.648000, 81.145300, +81.642600, 82.139900, 82.637200, 83.134500, 83.631800, 84.129100, +84.626400, 85.123700, 85.621000, 86.118300, 86.615600, 87.112900, +87.610200, 88.107500, 88.604800, 89.102100, 89.599400, 90.096700, +90.594000, 91.091300, 91.588600, 92.085900, 92.583200, 93.080500, +93.577800, 94.075100, 94.572400, 95.069700, 95.567000, 96.064300, +96.561600, 97.058900, 97.556200, 98.053500, 98.550800, 99.048100, +99.545400, 100.042700, 100.540000, 101.037300, 101.534600, 102.031900, +102.529200, 103.026500, 103.523800, 104.021100, 104.518400, 105.015700, +105.513000, 106.010300, 106.507600, 107.004900, 107.502200, 107.999500, +108.496800, 108.994100, 109.491400, 109.988700, 110.486000, 110.983300, +111.480600, 111.977900, 112.475200, 112.972500, 113.469800, 113.967100, +114.464400, 114.961700, 115.459000, 115.956300, 116.453600, 116.950900, +117.448200, 117.945500, 118.442800, 118.940100, 119.437400, 119.934700, +120.432000, 120.929300, 121.426600, 121.923900, 122.421200, 122.918500, +123.415800, 123.913100, 124.410400, 124.907700, 125.405000, 125.902300, +126.399600, 126.896900, 127.394200, 127.891500, 128.388800, 128.886100, +129.383400, 129.880700, 130.378000, 130.875300, 131.372600, 131.869900, +132.367200, 132.864500, 133.361800, 133.859100, 134.356400, 134.853700, +135.351000, 135.848300, 136.345600, 136.842900, 137.340200, 137.837500, +138.334800, 138.832100, 139.329400, 139.826700, 140.324000, 140.821300, +141.318600, 141.815900, 142.313200, 142.810500, 143.307800, 143.805100, +144.302400, 144.799700, 145.297000, 145.794300, 146.291600, 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+0.071931, 0.064190, 0.074442, 0.082647, 0.055797, 0.078632, +0.061116, 0.063092, 0.049131, 0.074517, 0.069915, 0.079021, +0.088656, 0.101045, 0.090432, 0.076460, 0.067451, 0.071381, +0.069790, 0.077330, 0.077115, 0.084403, 0.065138, 0.056436, +0.088024, 0.069893, 0.055985, 0.089655, 0.062911, 0.075311, +0.086679, 0.093645, 0.068632, 0.064498, 0.057677, 0.081391, +0.062781, 0.075467, 0.061314, 0.073394, 0.084462, 0.068470, +0.071267, 0.060556, 0.072487, 0.063785, 0.079164, 0.070406, +0.073394, 0.063168, 0.066968, 0.064125, 0.063954, 0.072504, +0.058948, 0.057740, 0.083383, 0.067262}; +wDD = 0.098024; +wND = 0.053452; +wSD = -1; + + Mmin = bin[0]; + Mmax = bin[nbin]; + if(MMmax) return kTRUE; + + Int_t ibin=nbin-1; + for(Int_t i=1; i<=nbin; i++) + if(M<=bin[i]) { + ibin=i-1; + // printf("Mi> %f && Mi< %f\n", bin[i-1], bin[i]); + break; + } + wSD=w[ibin]; + return kTRUE; + + } + + return kFALSE; +} //______________________________________________________________________________