1 static Int_t eventsPerRun = 100;
6 static PprGeo_t geo = kHoles;
11 // Switch on Transition Radiation simulation. 6/12/00 18:00
12 // iZDC=1 7/12/00 09:00
13 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
14 // Theta range given through pseudorapidity limits 22/6/2001
16 // Set Random Number seed
17 // gRandom->SetSeed(12345);
20 // libraries required by geant321
21 gSystem->Load("libgeant321");
23 new TGeant3("C++ Interface to Geant3");
25 if (!gSystem->Getenv("CONFIG_FILE"))
27 TFile *rootfile = new TFile("galice.root", "recreate");
29 rootfile->SetCompressionLevel(2);
32 TGeant3 *geant3 = (TGeant3 *) gMC;
35 // Set External decayer
36 TVirtualMCDecayer *decayer = new AliDecayerPythia();
38 decayer->SetForceDecay(kAll);
40 gMC->SetExternalDecayer(decayer);
43 //=======================================================================
44 // ******* GEANT STEERING parameters FOR ALICE SIMULATION *******
45 geant3->SetTRIG(1); //Number of events to be processed
46 geant3->SetSWIT(4, 10);
47 geant3->SetDEBU(0, 0, 1);
48 //geant3->SetSWIT(2,2);
59 geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
63 geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0)
64 geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks
65 geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2)
66 geant3->SetERAN(5.e-7);
68 Float_t cut = 1.e-3; // 1MeV cut by default
69 Float_t tofmax = 1.e10;
71 // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX
72 geant3->SetCUTS(cut, cut, cut, cut, cut, cut, cut, cut, cut, cut,
75 //=======================================================================
76 // ************* STEERING parameters FOR ALICE SIMULATION **************
77 // --- Specify event type to be tracked through the ALICE setup
78 // --- All positions are in cm, angles in degrees, and P and E in GeV
79 if (gSystem->Getenv("CONFIG_NPARTICLES"))
81 int nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
86 AliGenHIJINGpara *gener = new AliGenHIJINGpara(nParticles);
88 gener->SetMomentumRange(0, 999);
89 gener->SetPhiRange(0, 360);
90 // Set pseudorapidity range from -8 to 8.
91 Float_t thmin = EtaToTheta(8); // theta min. <---> eta max
92 Float_t thmax = EtaToTheta(-8); // theta max. <---> eta min
93 gener->SetThetaRange(thmin,thmax);
94 gener->SetOrigin(0, 0, 0); //vertex position
95 gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position
98 // Activate this line if you want the vertex smearing to happen
101 //gener->SetVertexSmear(perTrack);
103 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., 1);
105 gAlice->SetField(field);
130 //=================== Alice BODY parameters =============================
131 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
135 //=================== MAG parameters ============================
136 // --- Start with Magnet since detector layouts may be depending ---
137 // --- on the selected Magnet dimensions ---
138 AliMAG *MAG = new AliMAG("MAG", "Magnet");
144 //=================== ABSO parameters ============================
145 AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber");
150 //=================== DIPO parameters ============================
152 AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2");
157 //=================== HALL parameters ============================
159 AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
165 //=================== FRAME parameters ============================
167 AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
177 //=================== SHIL parameters ============================
179 AliSHIL *SHIL = new AliSHILv2("SHIL", "Shielding Version 2");
185 //=================== PIPE parameters ============================
187 AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe");
192 //=================== ITS parameters ============================
194 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
195 // almost all other detectors. This involves the fact that the ITS geometry
196 // still has several options to be followed in parallel in order to determine
197 // the best set-up which minimizes the induced background. All the geometries
198 // available to date are described in the following. Read carefully the comments
199 // and use the default version (the only one uncommented) unless you are making
200 // comparisons and you know what you are doing. In this case just uncomment the
201 // ITS geometry you want to use and run Aliroot.
203 // Detailed geometries:
206 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
208 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
210 AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
211 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
212 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
213 // ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
214 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
215 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
216 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
217 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
218 ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
219 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
221 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
222 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
223 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
224 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
225 //ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
226 //ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
227 //ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
228 //ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
229 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
230 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
233 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
234 // for reconstruction !):
237 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
238 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
239 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
241 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
242 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
243 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
247 // Geant3 <-> EUCLID conversion
248 // ============================
250 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
251 // media to two ASCII files (called by default ITSgeometry.euc and
252 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
253 // The default (=0) means that you dont want to use this facility.
260 //============================ TPC parameters ================================
261 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
262 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
263 // --- sectors are specified, any value other than that requires at least one
264 // --- sector (lower or upper)to be specified!
265 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
266 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
267 // --- SecLows - number of lower sectors specified (up to 6)
268 // --- SecUps - number of upper sectors specified (up to 12)
269 // --- Sens - sensitive strips for the Slow Simulator !!!
270 // --- This does NOT work if all S or L-sectors are specified, i.e.
271 // --- if SecAL or SecAU < 0
274 //-----------------------------------------------------------------------------
276 // gROOT->LoadMacro("SetTPCParam.C");
277 // AliTPCParam *param = SetTPCParam();
278 AliTPC *TPC = new AliTPCv2("TPC", "Default");
280 // All sectors included
289 //=================== TOF parameters ============================
290 AliTOF *TOF = new AliTOFv2FHoles("TOF", "TOF with Holes");
292 AliTOF *TOF = new AliTOFv4T0("TOF", "normal TOF");
299 //=================== RICH parameters ===========================
300 AliRICH *RICH = new AliRICHv3("RICH", "normal RICH");
307 //=================== ZDC parameters ============================
309 AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC");
314 //=================== TRD parameters ============================
316 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
318 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
321 // With hole in front of PHOS
323 // With hole in front of RICH
327 AliTRDsim *TRDsim = TRD->CreateTR();
332 //=================== FMD parameters ============================
333 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
334 FMD->SetRingsSi1(256);
335 FMD->SetRingsSi2(128);
336 FMD->SetSectorsSi1(20);
337 FMD->SetSectorsSi2(40);
342 //=================== MUON parameters ===========================
344 AliMUON *MUON = new AliMUONv1("MUON", "default");
346 //=================== PHOS parameters ===========================
350 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
356 //=================== PMD parameters ============================
357 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
362 //=================== START parameters ============================
363 AliSTART *START = new AliSTARTv1("START", "START Detector");
368 //=================== EMCAL parameters ============================
369 AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "G56_2_55_19_104_14");
374 //=================== CRT parameters ============================
375 AliCRT *CRT = new AliCRTv0("CRT", "normal ACORDE");
380 //=================== CRT parameters ============================
381 AliVZERO *VZERO = new AliVZEROv2("VZERO", "normal VZERO");
386 Float_t EtaToTheta(Float_t arg){
387 return (180./TMath::Pi())*2.*atan(exp(-arg));