enum gentype_t {hijing, gun, box, pythia, param, cocktail, fluka, halo, ntuple, scan, doublescan}; gentype_t gentype=hijing; ntracks=79610; void Config() { new AliGeant3("C++ Interface to Geant3"); //======================================================================= // Create the output file TFile *rootfile = new TFile("galice.root","recreate"); rootfile->SetCompressionLevel(2); TGeant3 *geant3 = (TGeant3*)gMC; // // Set Random Number seed gRandom->SetSeed(10); //======================================================================= // ******* GEANT STEERING parameters FOR ALICE SIMULATION ******* geant3->SetTRIG(1); //Number of events to be processed geant3->SetSWIT(4,100); 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(1); geant3->SetANNI(1); geant3->SetBREM(1); geant3->SetMUNU(1); geant3->SetCKOV(1); geant3->SetHADR(3); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3) geant3->SetLOSS(1); geant3->SetMULS(1); geant3->SetRAYL(0); 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) Float_t cut = 1.e-1; // 100MeV cut by default Float_t tofmax = 1.e10; // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX geant3->SetCUTS(1.e-5,5.e-5, 1.e-3, 1.e-4, 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 switch(gentype) { case gun: //********************************************* // Example for Fixed Particle Gun * //********************************************* AliGenFixed *gener = new AliGenFixed(ntracks); gener->SetMomentum(3); gener->SetPhiRange(75); gener->SetThetaRange(90); gener->SetOrigin(0,0,0); //vertex position gener->SetPart(kPiPlus); //GEANT particle type break; case box: //********************************************* // Example for Moving Particle Gun * //********************************************* AliGenBox *gener = new AliGenBox(ntracks); gener->SetMomentumRange(3,3); gener->SetPhiRange(85,85); gener->SetThetaRange(85,85); gener->SetOrigin(0,0,0); gener->SetVertexSmear(kPerTrack); //vertex position gener->SetSigma(1.8, 1.8,0); //Sigma in (X,Y,Z) (cm) on IP position gener->SetPart(kPiPlus); //GEANT particle type break; case scan: //********************************************* // Scanning on a grid * //********************************************* AliGenScan *gener = new AliGenScan(-1); gener->SetMomentumRange(3,3); gener->SetPhiRange(90,90); gener->SetThetaRange(95,95); //vertex position gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position gener->SetPart(kPiPlus); gener->SetRange(1, 0, 0, 1, 480, 480, 1, 0, 0); break; case doublescan: //********************************************* // Scanning on a grid * //********************************************* AliGenDoubleScan *gener = new AliGenDoubleScan(-1); gener->SetMomentumRange(3,3); gener->SetPhiRange(0,360); gener->SetThetaRange(0,0); //vertex position gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position gener->SetPart(kPiPlus); gener->SetRange(20, -60, 60, 1, 480, 480, 20, -60, 60); gener->SetDistance(1); break; case hijing: AliGenHIJINGpara *gener = new AliGenHIJINGpara(ntracks); gener->SetMomentumRange(0,999); gener->SetPhiRange(0,360); gener->SetThetaRange(.77,179.23); gener->SetOrigin(0,0,0); //vertex position gener->SetSigma(0,0,5.6); //Sigma in (X,Y,Z) (cm) on IP position break; case pythia: //******************************************** // Example for Charm Production with Pythia * //******************************************** AliGenPythia *gener = new AliGenPythia(ntracks); gener->SetMomentumRange(0,999); gener->SetPhiRange(0,360); gener->SetThetaRange(0., 180.); gener->SetYRange(-10,10); gener->SetPtRange(0,100); gener->SetOrigin(0,0,0); // vertex position gener->SetVertexSmear(perEvent); gener->SetSigma(0,0,5.6); // Sigma in (X,Y,Z) (cm) on IP position // gener->SetStrucFunc(DO_Set_1); gener->SetProcess(mb); gener->SetEnergyCMS(5500.); break; case param: //******************************************************* // Example for J/psi Production from Parameterisation * //******************************************************* AliGenParam *gener = new AliGenParam(178,Eta, AliGenPHOSlib::GetPt(Eta), AliGenPHOSlib::GetY(Eta), AliGenPHOSlib::GetIp(Eta) ); gener->SetMomentumRange(0,999); gener->SetPhiRange(0,360); gener->SetYRange(2.5,4); gener->SetThetaRange(2,9); gener->SetPtRange(0,10); gener->SetOrigin(0,0,0); //vertex position gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position gener->SetCutOnChild(1); break; case fluka: //******************************************************* // Example for a FLUKA Boundary Source * //******************************************************* AliGenFLUKAsource *gener = new AliGenFLUKAsource(-1); gener->AddFile("$(ALICE_ROOT)/data/all32.root"); rootfile->cd(); gener->SetPartFlag(9); gener->SetMomentumRange(0,999); gener->SetPhiRange(0,360); gener->SetThetaRange(0., 180.); gener->SetAgeMax(1.e-5); // 31.7 events gener->SetFraction(0.0315); break; case ntuple: //******************************************************* // Example for reading from a external file * //******************************************************* AliGenExtFile *gener = new AliGenExtFile(-1); gener->SetFileName("$(ALICE_ROOT)/data/dtujet93.root"); gener->SetVertexSmear(perEvent); gener->SetTrackingFlag(1); break; case halo: //******************************************************* // Example for Tunnel Halo Source * //******************************************************* AliGenHalo *gener = new AliGenHalo(ntracks); gener->SetFileName("/h1/morsch/marsip/marsip5.mu"); break; case cocktail: //******************************************************* // Example for a Cocktail * //******************************************************* AliGenCocktail *gener = new AliGenCocktail(); gener->SetMomentumRange(0,10); gener->SetPhiRange(0,360); gener->SetThetaRange(45.,135); pions = new AliGenParam(100, pion_p); // kaons = new AliGenParam(10 , kaon_p); // protons = new AliGenParam(10 , proton_p); gener->AddGenerator(pions , "Pions" , 100); // gener->AddGenerator(kaons , "Kaons" , 10); // gener->AddGenerator(protons, "Protons", 10); // // test // Float_t p2(Float_t); Float_t (*f1)(Float_t); Double_t (*f2)(Double_t); Float_t p2(Float_t x) { return x*x; } f1=p2; Float_t x = TMath::Sqrt(2); f1=TMath::Sqrt; printf("\n Result %f %f \n", (*f1)(2.), TMath::Sqrt(2)); break; } // Activate this line if you want the vertex smearing to happen // track by track // gener->SetVertexSmear(kPerTrack); gener->Init(); gAlice->SetField(-999,2); //Specify maximum magnetic field in Tesla (neg. ==> default field) Int_t iMAG=0; Int_t iITS=1; Int_t iTPC=1; Int_t iTOF=1; Int_t iRICH=1; Int_t iZDC=0; Int_t iCASTOR=0; Int_t iTRD=1; Int_t iABSO=0; Int_t iDIPO=0; Int_t iHALL=0; Int_t iFRAME=1; Int_t iSHIL=0; Int_t iPIPE=1; Int_t iFMD=0; Int_t iMUON=0; Int_t iPHOS=0; Int_t iPMD=0; Int_t iSTART=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 AliFRAMEv1("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 AliITSv3("ITS","Old ITS detailed version as of the ALICE TP"); // //AliITS *ITS = new AliITSv5("ITS","Current ITS detailed version used for the ITS TDR"); // //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"); // // // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful for reconstruction !): // ====================================================================================================================== // // //AliITS *ITS = new AliITSv1("ITS","Old ITS coarse version as of the ALICE TP"); // AliITS *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS coarse version with asymmetric services"); // //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS coarse version with symmetric services"); // // // 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 AliTPCv0("TPC","Normal TPC"); //v1 is default TPC->SetParam(param); // pass the parameter object to the TPC // set gas mixture TPC->SetGasMixt(2,20,10,-1,0.9,0.1,0.); TPC->SetSecAL(4); TPC->SetSecAU(4); TPC->SetSecLows(1, 2, 3, 19, 20, 21); TPC->SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1); TPC->SetSens(1); if (TPC->IsVersion()==1) param->Write(param->GetTitle());*/ AliTPC *TPC = new AliTPCv0("TPC","Default"); // All sectors included TPC->SetSecAL(-1); TPC->SetSecAU(-1); } if(iTOF) { //=================== TOF parameters ============================ AliTOF *TOF = new AliTOFv0("TOF","normal TOF"); } if(iRICH) { //=================== RICH parameters =========================== AliRICH *RICH = new AliRICHv2("RICH","normal RICH"); // // Version 0 // Default Segmentation AliRICHSegmentationV1* Segmentation = new AliRICHSegmentationV1; // // Segmentation parameters Segmentation->SetPadSize(0.84,0.8); Segmentation->SetDAnod(0.84/2); // Geometry parameters AliRICHGeometry* Geometry = new AliRICHGeometry; Geometry->SetGapThickness(8); Geometry->SetProximityGapThickness(.4); Geometry->SetQuartzLength(133); Geometry->SetQuartzWidth(127.9); Geometry->SetQuartzThickness(.5); Geometry->SetOuterFreonLength(133); Geometry->SetOuterFreonWidth(41.3); Geometry->SetInnerFreonLength(133); Geometry->SetInnerFreonWidth(41.3); Geometry->SetFreonThickness(1.5); // Response parameters AliRICHResponseV0* Response = new AliRICHResponseV0; Response->SetSigmaIntegration(5.); Response->SetChargeSlope(27.); Response->SetChargeSpread(0.18, 0.18); Response->SetMaxAdc(4096); Response->SetAlphaFeedback(0.036); Response->SetEIonisation(26.e-9); Response->SetSqrtKx3(0.77459667); Response->SetKx2(0.962); Response->SetKx4(0.379); Response->SetSqrtKy3(0.77459667); Response->SetKy2(0.962); Response->SetKy4(0.379); Response->SetPitch(0.25); Response->SetWireSag(1); // 1->On, 0->Off Response->SetVoltage(2100); // Should only be 2000, 2050, 2100 or 2150 for (Int_t i=0; i<7; i++) { RICH->SetGeometryModel(i,Geometry); RICH->SetSegmentationModel(i, Segmentation); RICH->SetResponseModel(i, Response); } RICH->SetDebugLevel(0); } 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 AliTRDv0("TRD","TRD version 0"); // 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(); } if(iFMD) { //=================== FMD parameters ============================ AliFMD *FMD = new AliFMDv1("FMD","normal FMD"); } if(iMUON) { //=================== MUON parameters =========================== AliMUON *MUON = new AliMUONv0("MUON","normal MUON"); } //=================== PHOS parameters =========================== if(iPHOS) { AliPHOS *PHOS = new AliPHOSv0("PHOS","GPS2"); } if(iPMD) { //=================== PMD parameters ============================ AliPMD *PMD = new AliPMDv0("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 AliSTARTv0("START","START Detector"); } }