- // 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
-
- 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);
- // gener->SetThetaRange(0.28,179.72);
- gener->SetThetaRange(0.,180.);
- 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;
-
- //=================== 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 AliPIPEvTemp("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: