enum PprMag_t {k2kG, k4kG, k5kG}; static PprMag_t smag = k2kG; // k2kG->L3 field 0.2T //static PprMag_t smag = k4kG; // k4kG->L3 field 0.4T //static PprMag_t smag = k5kG; // k5kG->L3 field 0.5T Float_t EtaToTheta(Float_t arg); static Int_t eventsPerRun = 100; enum PprGeo_t {kHoles, kNoHoles}; static PprGeo_t sgeo = kHoles; void Config() { // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00 // Theta range given through pseudorapidity limits 22/6/2001 // Set Random Number seed gRandom->SetSeed(9956646); // Set 0 to use the current time cout<<"Seed for random number generation= "<GetSeed()<Load("libgeant321"); #endif new TGeant3("C++ Interface to Geant3"); 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); //gAlice->SetDebug(1); // // Set External decayer AliDecayer *decayer = new AliDecayerPythia(); decayer->SetForceDecay(kAll); decayer->Init(); gMC->SetExternalDecayer(decayer); //======================================================================= // ************* 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 // ((TGeant3*)gMC)->SetDEBU(1, 2, 1); ((TGeant3*)gMC)->SetSWIT(4,10); ((TGeant3*)gMC)->SetSWIT(2,2); ((TGeant3*)gMC)->SetSWIT(2,1); // to draw tracks 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("HADR",0); // If option NoShower() is switched on 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); int nParticles = 100; if (gSystem->Getenv("CONFIG_NPARTICLES")) nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES")); // #### AliGenZDC generation ###################################### AliGenZDC *gener = new AliGenZDC(); gener->SetOrigin(0, 0, 0); // vertex position //gener->SetParticle(kNeutron); gener->SetParticle(kProton); gener->SetMomentum(2760.); gener->SetDirection(0.,0.,0.,-1.); gener->SetFermi(1); // Fermi momentum //gener->SetDiv(0.,0.,2); // Divergence and crossing angle gener->SetDiv(0.000032,0.0001,2); // Divergence and crossing angle gener->SetDebug(2); // gener->SetTrackingFlag(1); gener->Init(); // // Activate this line if you want the vertex smearing to happen // track by track // //gener->SetVertexSmear(perTrack); // Magnetic field AliMagF* field = new AliMagF("Maps","Maps", 1., 1., smag); field->SetL3ConstField(0); //Using const. field in the barrel TGeoGlobalMagField::Instance()->SetField(field); rl->CdGAFile(); Int_t iABSO = 1; Int_t iDIPO = 1; Int_t iFMD = 0; Int_t iFRAME = 0; Int_t iHALL = 0; Int_t iITS = 0; Int_t iMAG = 1; Int_t iMUON = 0; Int_t iPHOS = 0; Int_t iPIPE = 1; Int_t iPMD = 0; Int_t iHMPID = 0; Int_t iSHIL = 1; Int_t iT0 = 0; Int_t iTOF = 0; Int_t iTPC = 0; Int_t iTRD = 0; Int_t iZDC = 1; Int_t iEMCAL = 0; Int_t iACORDE = 0; Int_t iVZERO = 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 ============================ AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame"); if (sgeo == kHoles) { FRAME->SetHoles(1); } else { FRAME->SetHoles(0); } } if (iSHIL) { //=================== SHIL parameters ============================ AliSHIL *SHIL = new AliSHILv2("SHIL", "Shielding Version 2"); } 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"); // AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("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(kTRUE); // 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 [100,300] ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300] ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300] ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300] ITS->SetRails(0); // 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(0); // 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(0); // 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 AliTOFv4T0("TOF", "normal TOF"); } if (iHMPID) { //=================== HMPID parameters =========================== AliHMPID *HMPID = new AliHMPIDv1("HMPID", "normal HMPID"); } if (iZDC) { //=================== ZDC parameters ============================ AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC"); ZDC->NoShower(); } 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); if (sgeo == kHoles) { // With hole in front of PHOS TRD->SetPHOShole(); // With hole in front of HMPID TRD->SetHMPIDhole(); } // Switch on TR AliTRDsim *TRDsim = TRD->CreateTR(); } if (iFMD) { //=================== FMD parameters ============================ AliFMD *FMD = new AliFMDv1("FMD", "normal FMD"); } if (iMUON) { //=================== MUON parameters =========================== AliMUON *MUON = new AliMUONv1("MUON", "default"); MUON->AddGeometryBuilder(new AliMUONSt1GeometryBuilderV2(MUON)); MUON->AddGeometryBuilder(new AliMUONSt2GeometryBuilder(MUON)); MUON->AddGeometryBuilder(new AliMUONSlatGeometryBuilder(MUON)); MUON->AddGeometryBuilder(new AliMUONTriggerGeometryBuilder(MUON)); } //=================== PHOS parameters =========================== if (iPHOS) { AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP"); } if (iPMD) { //=================== PMD parameters ============================ AliPMD *PMD = new AliPMDv1("PMD", "normal PMD"); } if (iT0) { //=================== T0 parameters ============================ AliT0 *T0 = new AliT0v1("T0", "T0 Detector"); } if (iEMCAL) { //=================== EMCAL parameters ============================ AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE"); } if (iACORDE) { //=================== ACORDE parameters ============================ AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE"); } if (iVZERO) { //=================== ACORDE parameters ============================ AliVZERO *VZERO = new AliVZEROv2("VZERO", "normal VZERO"); } cout << "End of Config.C" << endl; } Float_t EtaToTheta(Float_t arg){ return (180./TMath::Pi())*2.*atan(exp(-arg)); }