static Int_t eventsPerRun = 100; void Config() { // 7-DEC-2000 09:00 // Switch on Transition Radiation simulation. 6/12/00 18:00 // iZDC=1 7/12/00 09:00 // 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(12345); new AliGeant3("C++ Interface to Geant3"); if (!gSystem->Getenv("CONFIG_FILE")) { TFile *rootfile = new TFile("galice.root", "recreate"); rootfile->SetCompressionLevel(2); } TGeant3 *geant3 = (TGeant3 *) gMC; // // Set External decayer AliDecayer *decayer = new AliDecayerPythia(); decayer->SetForceDecay(kAll); decayer->Init(); gMC->SetExternalDecayer(decayer); // // //======================================================================= // ******* GEANT STEERING parameters FOR ALICE SIMULATION ******* geant3->SetTRIG(1); //Number of events to be processed geant3->SetSWIT(4, 10); geant3->SetDEBU(0, 0, 1); //geant3->SetSWIT(2,2); geant3->SetDCAY(1); geant3->SetPAIR(1); geant3->SetCOMP(1); geant3->SetPHOT(1); geant3->SetPFIS(0); geant3->SetDRAY(0); geant3->SetANNI(1); geant3->SetBREM(1); geant3->SetMUNU(1); geant3->SetCKOV(1); geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3) geant3->SetLOSS(2); geant3->SetMULS(1); geant3->SetRAYL(1); geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0) geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2) geant3->SetERAN(5.e-7); Float_t cut = 1.e-3; // 1MeV cut by default Float_t tofmax = 1.e10; // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX geant3->SetCUTS(cut, cut, cut, cut, cut, cut, cut, cut, cut, cut, tofmax); // //======================================================================= // ************* 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 if (gSystem->Getenv("CONFIG_NPARTICLES")) { int nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES")); } else { int nParticles = 50; } AliGenHIJINGpara *gener = new AliGenHIJINGpara(nParticles); gener->SetMomentumRange(0, 999); gener->SetPhiRange(0, 360); // Set pseudorapidity range from -8 to 8. Float_t thmin = EtaToTheta(8); // theta min. <---> eta max Float_t thmax = EtaToTheta(-8); // theta max. <---> eta min gener->SetThetaRange(thmin,thmax); gener->SetOrigin(0, 0, 0); //vertex position gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position gener->Init(); // // Activate this line if you want the vertex smearing to happen // track by track // //gener->SetVertexSmear(perTrack); gAlice->SetField(-999, 2); //Specify maximum magnetic field in Tesla (neg. ==> default field) Int_t iABSO = 1; Int_t iCASTOR = 1; Int_t iDIPO = 1; Int_t iFMD = 1; Int_t iFRAME = 1; Int_t iHALL = 1; Int_t iITS = 1; Int_t iMAG = 1; Int_t iMUON = 1; Int_t iPHOS = 1; Int_t iPIPE = 1; Int_t iPMD = 1; Int_t iRICH = 1; Int_t iSHIL = 1; Int_t iSTART = 1; Int_t iTOF = 1; Int_t iTPC = 1; Int_t iTRD = 1; Int_t iZDC = 1; Int_t iEMCAL = 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 AliSHILvF("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("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300] ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300] ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300] ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300] ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon // //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services"); //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer //ITS->SetThicknessDet1(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(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 AliZDCv2("ZDC", "normal ZDC"); } if (iCASTOR) { //=================== CASTOR parameters ============================ AliCASTOR *CASTOR = new AliCASTORv1("CASTOR", "normal CASTOR"); } 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 AliFMDv1("FMD", "normal FMD"); FMD->SetRingsSi1(256); FMD->SetRingsSi2(64); FMD->SetSectorsSi1(20); FMD->SetSectorsSi2(24); } if (iMUON) { //=================== MUON parameters =========================== AliMUON *MUON = new AliMUONv1("MUON", "default"); } //=================== PHOS parameters =========================== if (iPHOS) { AliPHOS *PHOS = new AliPHOSv1("PHOS", "GPS2"); } 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 (iEMCAL && !iRICH) { //=================== EMCAL parameters ============================ AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "EMCALArch1a"); } if (iSTART) { //=================== START parameters ============================ AliSTART *START = new AliSTARTv1("START", "START Detector"); } } Float_t EtaToTheta(Float_t arg){ return (180./TMath::Pi())*2.*atan(exp(-arg)); }