//*******************************************************************// // Configuration file for charm / beauty generation with PYTHIA // // // // The parameters have been tuned in order to reproduce the inclusive// // heavy quark pt distribution given by the NLO pQCD calculation by // // Mangano, Nason and Ridolfi. // // // // For details and for the NORMALIZATION of the yields see: // // - "Charm and beauty production at the LHC", ALICE note submitted // // and available at: http://www.pd.infn.it/alipd/Docs.html // // - Current version of the ALICE PPR (Chapter 6.5) // // at: http://alice.web.cern.ch/Alice/ppr/web/CurrentVersion.html // //*******************************************************************// #if !defined(__CINT__) || defined(__MAKECINT__) #include #include #include #include #include #include #include "STEER/AliRunLoader.h" #include "STEER/AliRun.h" #include "STEER/AliConfig.h" #include "PYTHIA6/AliDecayerPythia.h" #include "PYTHIA6/AliGenPythia.h" #include "STEER/AliMagFMaps.h" #include "STRUCT/AliBODY.h" #include "STRUCT/AliMAG.h" #include "STRUCT/AliABSOv0.h" #include "STRUCT/AliDIPOv2.h" #include "STRUCT/AliHALL.h" #include "STRUCT/AliFRAMEv2.h" #include "STRUCT/AliSHILv2.h" #include "STRUCT/AliPIPEv0.h" #include "ITS/AliITSvPPRasymm.h" #include "TPC/AliTPCv2.h" #include "TOF/AliTOFv2.h" #include "RICH/AliRICHv1.h" #include "ZDC/AliZDCv1.h" #include "TRD/AliTRDv1.h" #include "FMD/AliFMDv0.h" #include "MUON/AliMUONv1.h" #include "PHOS/AliPHOSv1.h" #include "PMD/AliPMDv1.h" #include "START/AliSTARTv1.h" #include "CRT/AliCRTv1.h" #endif //--- Heavy Flavour Production --- enum ProcessHvFl_t { kCharmPbPb5500, kCharmpPb8800, kCharmpp14000, kD0PbPb5500, kD0pPb8800, kD0pp14000, kBeautyPbPb5500, kBeautypPb8800, kBeautypp14000 }; //--- Decay Mode --- enum DecayHvFl_t { kNature, kHadr, kSemiEl, kSemiMu }; //--- Rapidity Cut --- enum YCut_t { kFull, kBarrel, kMuonArm }; //--- Magnetic Field --- enum Mag_t { k2kG, k4kG, k5kG }; //--- Functions --- AliGenPythia *PythiaHVQ(ProcessHvFl_t proc); // This part for configuration static ProcessHvFl_t procHvFl = kCharmPbPb5500; static DecayHvFl_t decHvFl = kNature; static YCut_t ycut = kFull; static Mag_t mag = k4kG; // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and // decay chain // nEvts = N>0 : you get N charm / beauty Hadrons Int_t nEvts = -1; // stars = kTRUE : all heavy resonances and their decay stored // = kFALSE: only final heavy hadrons and their decays stored Bool_t stars = kTRUE; // Comment line static TString comment; void Config() { //========================// // Set Random Number seed // //========================// TDatime dt; UInt_t curtime=dt.Get(); UInt_t procid=gSystem->GetPid(); UInt_t seed=curtime-procid; // gRandom->SetSeed(seed); gRandom->SetSeed(12345); cerr<<"Seed for random number generation= "<Load("libgeant321"); #endif new TGeant3("C++ Interface to Geant3"); //======================================================================= // Create the output file AliRunLoader* rl=0x0; cout<<"Config.C: Creating Run Loader ..."<Fatal("Config.C","Can not instatiate the Run Loader"); return; } rl->SetCompressionLevel(2); rl->SetNumberOfEventsPerFile(3); gAlice->SetRunLoader(rl); // //======================================================================= // ************* STEERING parameters FOR ALICE SIMULATION ************** // --- Specify event type to be tracked through the ALICE setup // --- All positions are in cm, angles in degrees, and P and E in GeV gMC->SetProcess("DCAY",1); gMC->SetProcess("PAIR",1); gMC->SetProcess("COMP",1); gMC->SetProcess("PHOT",1); gMC->SetProcess("PFIS",0); gMC->SetProcess("DRAY",0); gMC->SetProcess("ANNI",1); gMC->SetProcess("BREM",1); gMC->SetProcess("MUNU",1); gMC->SetProcess("CKOV",1); gMC->SetProcess("HADR",1); gMC->SetProcess("LOSS",2); gMC->SetProcess("MULS",1); gMC->SetProcess("RAYL",1); Float_t cut = 1.e-3; // 1MeV cut by default Float_t tofmax = 1.e10; gMC->SetCut("CUTGAM", cut); gMC->SetCut("CUTELE", cut); gMC->SetCut("CUTNEU", cut); gMC->SetCut("CUTHAD", cut); gMC->SetCut("CUTMUO", cut); gMC->SetCut("BCUTE", cut); gMC->SetCut("BCUTM", cut); gMC->SetCut("DCUTE", cut); gMC->SetCut("DCUTM", cut); gMC->SetCut("PPCUTM", cut); gMC->SetCut("TOFMAX", tofmax); // Set External decayer // //======================// TVirtualMCDecayer* decayer = new AliDecayerPythia(); // DECAYS // switch(decHvFl) { case kNature: decayer->SetForceDecay(kAll); break; case kHadr: decayer->SetForceDecay(kHadronicD); break; case kSemiEl: decayer->SetForceDecay(kSemiElectronic); break; case kSemiMu: decayer->SetForceDecay(kSemiMuonic); break; } decayer->Init(); gMC->SetExternalDecayer(decayer); //=========================// // Generator Configuration // //=========================// AliGenPythia *pythia = PythiaHVQ(procHvFl); // FeedDown option pythia->SetFeedDownHigherFamily(kFALSE); // Stack filling option if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection); // Set Count mode if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents); // DECAYS // switch(decHvFl) { case kNature: pythia->SetForceDecay(kAll); break; case kHadr: pythia->SetForceDecay(kHadronicD); break; case kSemiEl: pythia->SetForceDecay(kSemiElectronic); break; case kSemiMu: pythia->SetForceDecay(kSemiMuonic); break; } // GEOM & KINE CUTS // pythia->SetMomentumRange(0,99999999); pythia->SetPhiRange(0., 360.); pythia->SetThetaRange(0,180); switch(ycut) { case kFull: pythia->SetYRange(-999,999); break; case kBarrel: pythia->SetYRange(-2,2); break; case kMuonArm: pythia->SetYRange(1,6); break; } // PRIMARY VERTEX // pythia->SetOrigin(0, 0, 0); // vertex position pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position pythia->SetCutVertexZ(1.); // Truncate at 1 sigma pythia->SetVertexSmear(kPerEvent); pythia->SetTrackingFlag(0); // Specify GEANT tracking limits (Rmax, Zmax) //gAlice->TrackingLimits(90.,1.0e10); pythia->Init(); // FIELD // if (mag == k2kG) { comment = comment.Append(" | L3 field 0.2 T"); } else if (mag == k4kG) { comment = comment.Append(" | L3 field 0.4 T"); } else if (mag == k5kG) { comment = comment.Append(" | L3 field 0.5 T"); } printf("\n \n Comment: %s \n \n", comment.Data()); AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag); rl->CdGAFile(); gAlice->SetField(field); // By default all ALICE is switched off Int_t iABSO=0; Int_t iCRT=0; Int_t iDIPO=0; Int_t iFMD=0; Int_t iFRAME=0; Int_t iHALL=0; Int_t iITS=0; Int_t iMAG=0; Int_t iMUON=0; Int_t iPHOS=0; Int_t iPIPE=0; Int_t iPMD=0; Int_t iRICH=0; Int_t iSHIL=0; Int_t iSTART=0; Int_t iTOF=0; Int_t iTPC=0; Int_t iTRD=0; Int_t iZDC=0; //=================== Alice BODY parameters ============================= AliBODY *BODY = new AliBODY("BODY","Alice envelop"); if(iMAG) { //=================== MAG parameters ============================ // --- Start with Magnet since detector layouts may be depending --- // --- on the selected Magnet dimensions --- AliMAG *MAG = new AliMAG("MAG","Magnet"); } if(iABSO) { //=================== ABSO parameters ============================ AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber"); } if(iDIPO) { //=================== DIPO parameters ============================ AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2"); } if(iHALL) { //=================== HALL parameters ============================ AliHALL *HALL = new AliHALL("HALL","Alice Hall"); } if(iFRAME) { //=================== FRAME parameters ============================ AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame"); } if(iSHIL) { //=================== SHIL parameters ============================ AliSHIL *SHIL = new AliSHILv2("SHIL","Shielding"); } if(iPIPE) { //=================== PIPE parameters ============================ AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe"); } if(iITS) { //=================== ITS parameters ============================ // // As the innermost detector in ALICE, the Inner Tracking System "impacts" on // almost all other detectors. This involves the fact that the ITS geometry // still has several options to be followed in parallel in order to determine // the best set-up which minimizes the induced background. All the geometries // available to date are described in the following. Read carefully the comments // and use the default version (the only one uncommented) unless you are making // comparisons and you know what you are doing. In this case just uncomment the // ITS geometry you want to use and run Aliroot. // // Detailed geometries: // // //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services"); // //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services"); // AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services"); ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300] ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300] ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [100,300] ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [100,300] ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon // //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services"); //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [150,300] //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [150,300] //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [100,300] //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [100,300] //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon // // // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful // for reconstruction !): // // //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services"); //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon // //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services"); //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon // // // // Geant3 <-> EUCLID conversion // ============================ // // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and // media to two ASCII files (called by default ITSgeometry.euc and // ITSgeometry.tme) in a format understandable to the CAD system EUCLID. // The default (=0) means that you dont want to use this facility. // ITS->SetEUCLID(0); } if(iTPC) { //============================ TPC parameters ================================ // --- This allows the user to specify sectors for the SLOW (TPC geometry 2) // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper) // --- sectors are specified, any value other than that requires at least one // --- sector (lower or upper)to be specified! // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0) // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0) // --- SecLows - number of lower sectors specified (up to 6) // --- SecUps - number of upper sectors specified (up to 12) // --- Sens - sensitive strips for the Slow Simulator !!! // --- This does NOT work if all S or L-sectors are specified, i.e. // --- if SecAL or SecAU < 0 // // //----------------------------------------------------------------------------- // gROOT->LoadMacro("SetTPCParam.C"); // AliTPCParam *param = SetTPCParam(); AliTPC *TPC = new AliTPCv2("TPC","Default"); // All sectors included TPC->SetSecAL(-1); TPC->SetSecAU(-1); } if(iTOF) { //=================== TOF parameters ============================ AliTOF *TOF = new AliTOFv2("TOF","normal TOF"); } if(iRICH) { //=================== RICH parameters =========================== AliRICH *RICH = new AliRICHv1("RICH","normal RICH"); } if(iZDC) { //=================== ZDC parameters ============================ AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC"); } if(iCRT) { //=================== CRT parameters ============================ AliCRT *CRT = new AliCRTv1("CRT","normal CRT"); } if(iTRD) { //=================== TRD parameters ============================ AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator"); // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2) TRD->SetGasMix(1); // With hole in front of PHOS TRD->SetPHOShole(); // With hole in front of RICH TRD->SetRICHhole(); // Switch on TR AliTRDsim *TRDsim = TRD->CreateTR(); } if(iFMD) { //=================== FMD parameters ============================ AliFMD *FMD = new AliFMDv0("FMD","normal FMD"); } if(iMUON) { //=================== MUON parameters =========================== AliMUON *MUON = new AliMUONv1("MUON","default"); } //=================== PHOS parameters =========================== if(iPHOS) { AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2"); } //=================== CRT parameters =========================== if(iCRT) { AliCRT *CRT = new AliCRTv1("CRT","Normal CRTGPS2"); } if(iPMD) { //=================== PMD parameters ============================ AliPMD *PMD = new AliPMDv1("PMD","normal PMD"); PMD->SetPAR(1., 1., 0.8, 0.02); PMD->SetIN(6., 18., -580., 27., 27.); PMD->SetGEO(0.0, 0.2, 4.); PMD->SetPadSize(0.8, 1.0, 1.0, 1.5); } if(iSTART) { //=================== START parameters ============================ AliSTART *START = new AliSTARTv1("START","START Detector"); } } // // PYTHIA // AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) { AliGenPythia * gener = 0x0; switch(proc) { case kCharmPbPb5500: comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyCharmPbPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(5500.); gener->SetNuclei(208,208); break; case kCharmpPb8800: comment = comment.Append(" Charm in p-Pb at 8.8 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyCharmpPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(8800.); gener->SetProjectile("P",1,1); gener->SetTarget("Pb",208,82); break; case kCharmpp14000: comment = comment.Append(" Charm in pp at 14 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyCharmppMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(14000.); break; case kD0PbPb5500: comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyD0PbPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(5500.); gener->SetNuclei(208,208); break; case kD0pPb8800: comment = comment.Append(" D0 in p-Pb at 8.8 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyD0pPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(8800.); gener->SetProjectile("P",1,1); gener->SetTarget("Pb",208,82); break; case kD0pp14000: comment = comment.Append(" D0 in pp at 14 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyD0ppMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(14000.); break; case kBeautyPbPb5500: comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV"); AliGenPythia *gener = new AliGenPythia(nEvts); gener->SetProcess(kPyBeautyPbPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.75,-1.0); gener->SetEnergyCMS(5500.); gener->SetNuclei(208,208); break; case kBeautypPb8800: comment = comment.Append(" Beauty in p-Pb at 8.8 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyBeautypPbMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.75,-1.0); gener->SetEnergyCMS(8800.); gener->SetProjectile("P",1,1); gener->SetTarget("Pb",208,82); break; case kBeautypp14000: comment = comment.Append(" Beauty in pp at 14 TeV"); gener = new AliGenPythia(nEvts); gener->SetProcess(kPyBeautyppMNR); gener->SetStrucFunc(kCTEQ4L); gener->SetPtHard(2.75,-1.0); gener->SetEnergyCMS(14000.); break; } return gener; }