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); cerr<<"Seed for random number generation= "<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 // AliGenPythia *gener = new AliGenPythia(ntracks); AliGenPythia *gener = new AliGenPythia(-1); gener->SetMomentumRange(0,999); gener->SetPhiRange(-180.,180.); gener->SetThetaRange(0,180); gener->SetYRange(-999,999); //gener->SetPtRange(0,100); gener->SetOrigin(0,0,0); // vertex position //gener->SetVertexSmear(kPerEvent); gener->SetSigma(0,0,5.3); // Sigma in (X,Y,Z) (cm) on IP position gener->SetTrackingFlag(0); // gener->SetForceDecay(kHadronicD); // // The following settings select the Pythia parameters tuned to agree // with charm NLO calculation for Pb-Pb @ 5.5 TeV with MNR code. // gener->SetProcess(kPyCharmPbMNR); gener->SetStrucFunc(kCTEQ_4L); gener->SetPtHard(2.1,-1.0); gener->SetEnergyCMS(5500.); gener->SetNuclei(208,208); // Pb-Pb collisions gener->Init(); // // Activate this line if you want the vertex smearing to happen // track by track // //gener->SetVertexSmear(perTrack); // Field (L3 0.4 T) AliMagFCM* field = new AliMagFCM( "Map2","$(ALICE_ROOT)/data/field01.dat", 2, 1., 10.); field->SetSolenoidField(4.); gAlice->SetField(field); Int_t iABSO=0; Int_t iCASTOR=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 AliSHILv0("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(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 AliFMDv0("FMD","normal FMD"); } 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(iSTART) { //=================== START parameters ============================ AliSTART *START = new AliSTARTv1("START","START Detector"); } }