4 // Switch on Transition Radiation simulation. 6/12/00 18:00
5 // iZDC=1 7/12/00 09:00
6 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
8 // Set Random Number seed
9 // gRandom->SetSeed(12345);
11 new AliGeant3("C++ Interface to Geant3");
13 if (!gSystem->Getenv("CONFIG_FILE"))
15 TFile *rootfile = new TFile("galice.root", "recreate");
17 rootfile->SetCompressionLevel(2);
20 TGeant3 *geant3 = (TGeant3 *) gMC;
23 // Set External decayer
24 AliDecayer *decayer = new AliDecayerPythia();
26 decayer->SetForceDecay(kAll);
28 gMC->SetExternalDecayer(decayer);
31 //=======================================================================
32 // ******* GEANT STEERING parameters FOR ALICE SIMULATION *******
33 geant3->SetTRIG(1); //Number of events to be processed
34 geant3->SetSWIT(4, 10);
35 geant3->SetDEBU(0, 0, 1);
36 //geant3->SetSWIT(2,2);
47 geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
51 geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0)
52 geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks
53 geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2)
54 geant3->SetERAN(5.e-7);
56 Float_t cut = 1.e-3; // 1MeV cut by default
57 Float_t tofmax = 1.e10;
59 // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX
60 geant3->SetCUTS(cut, cut, cut, cut, cut, cut, cut, cut, cut, cut,
63 //=======================================================================
64 // ************* STEERING parameters FOR ALICE SIMULATION **************
65 // --- Specify event type to be tracked through the ALICE setup
66 // --- All positions are in cm, angles in degrees, and P and E in GeV
67 if (gSystem->Getenv("CONFIG_NPARTICLES"))
69 int nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
72 int nParticles = 10000;
75 /*********************************************************************************/
76 /*********************************************************************************/
77 /***************** G E N E R A T O R S *********************************/
79 /** C O C K T A I L W I T H A F T E R B U R N E R S A F T E R W A R D S **/
80 /***************** (WRAPPER GENERATOR) *********************************/
84 AliGenCocktailAfterBurner* gener = new AliGenCocktailAfterBurner();
85 gener->SetPhiRange(0, 360);
86 gener->SetThetaRange(40., 140.);
87 gener->SetOrigin(0, 0, 0); //vertex position
88 gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position
90 /***************** HIJING PARAMETRIZATION ********************************/
92 //AliGenHIJINGpara *g2 = new AliGenHIJINGpara(5);
93 //g2->SetMomentumRange(0, 999);
95 /***************** G E N B O X ***********************************/
97 // AliGenBox *g1 = new AliGenBox(5);
98 // g1->SetMomentumRange(0, 3);
99 // g1->SetOrigin(0,0,0); //vertex position
100 // g1->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
101 // g1->SetPart(310); //K0short(310), Lambda(3122)
104 /***************** M E V S I M ********************************/
106 AliMevSimConfig *c = new AliMevSimConfig(1);
107 c->SetRectPlane(1); // reaction plane control, model 4
110 AliGenMevSim *g3 = new AliGenMevSim(c);
111 g3->SetPtRange(0.001, 3);
112 g3->SetMomentumRange(0.1, 3);
114 g3->SetTrackingFlag(1);
115 g3->SetOrigin(0.0, 0.0, 0.0);
116 g3->SetSigma(0.0, 0.0, 0.0);
117 //g3->SetEtaCutRange(-4,4);
119 AliMevSimParticle *piPlus = new AliMevSimParticle(kPiPlus, 3000, 3, 0.2, 0.01, 3, 0.1, 0.0, 0.0);
120 AliMevSimParticle *piMinus = new AliMevSimParticle(kPiMinus, 3000, 3, 0.2, 0.01, 3, 0.1, 0.0, 0.0);
121 //AliMevSimParticle *KPlus = new AliMevSimParticle(kKPlus, 10, 0, 0.25, 0.0, 2, 0.15, 0.0, 0.0 );
122 //AliMevSimParticle *KMinus = new AliMevSimParticle(kKMinus, 10, 0, 0.25, 0.0, 2, 0.15, 0.0, 0.0 );
123 //AliMevSimParticle *protonPlus = new AliMevSimParticle(kProton, 3, 0, 0.4, 0.0, 2, 0.15, 0.0, 0.0);
124 //AliMevSimParticle *protonMinus = new AliMevSimParticle(kProtonBar, 2, 0, 0.4, 0.0, 2, 0.15, 0.0, 0.0);
126 g3->AddParticleType(piPlus);
127 g3->AddParticleType(piMinus);
128 //g3->AddParticleType(KPlus);
129 //g3->AddParticleType(KMinus);
130 //g3->AddParticleType(protonPlus);
131 //g3->AddParticleType(protonMinus);
134 /***************** H B T P R O C E S S O R ********************************/
136 AliGenHBTprocessor *hbtp = new AliGenHBTprocessor();
137 hbtp->SetRefControl(2);
138 hbtp->SetSwitch1D(1);
139 hbtp->SetSwitch3D(1);
140 hbtp->SetSwitchCoulomb(0);
141 hbtp->SetSwitchCoherence(0);
142 hbtp->SetSwitchFermiBose(1);
143 hbtp->SetDeltap(0.1);
144 hbtp->SetDelChi(0.1);
145 hbtp->SetLambda(0.5);
148 hbtp->SetRParallel(8.0);
153 hbtp->SetPtRange(0.1,0.98);
154 hbtp->SetPIDs(211,-211); //pi+ pi-
155 hbtp->SetSwitchType(3); // fit both the like and unlike pair correl
157 /***********************************************************************************/
159 // gener->AddGenerator(g2,"HIJING PARAMETRIZATION",1);
160 // gener->AddGenerator(g1,"BOX (K0short)",1);
161 gener->AddGenerator(g3,"MEVSIM",1);
163 gener->AddAfterBurner(hbtp,"HBT PROCESSOR",1);
167 // Activate this line if you want the vertex smearing to happen
170 //gener->SetVertexSmear(perTrack);
172 gAlice->SetField(-999, 2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
173 // gAlice->SetField(-999, 2, 2.); //Specify maximum magnetic field in Tesla (neg. ==> default field)
174 //Last number indicates the scale factor
197 //=================== Alice BODY parameters =============================
198 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
203 //=================== MAG parameters ============================
204 // --- Start with Magnet since detector layouts may be depending ---
205 // --- on the selected Magnet dimensions ---
206 AliMAG *MAG = new AliMAG("MAG", "Magnet");
212 //=================== ABSO parameters ============================
213 AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber");
218 //=================== DIPO parameters ============================
220 AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2");
225 //=================== HALL parameters ============================
227 AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
233 //=================== FRAME parameters ============================
235 AliFRAME *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
241 //=================== SHIL parameters ============================
243 AliSHIL *SHIL = new AliSHILv0("SHIL", "Shielding");
249 //=================== PIPE parameters ============================
251 AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe");
256 //=================== ITS parameters ============================
258 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
259 // almost all other detectors. This involves the fact that the ITS geometry
260 // still has several options to be followed in parallel in order to determine
261 // the best set-up which minimizes the induced background. All the geometries
262 // available to date are described in the following. Read carefully the comments
263 // and use the default version (the only one uncommented) unless you are making
264 // comparisons and you know what you are doing. In this case just uncomment the
265 // ITS geometry you want to use and run Aliroot.
267 // Detailed geometries:
270 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
272 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
274 AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
275 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
276 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
277 // ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
278 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
279 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
280 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
281 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
282 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
283 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
285 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
286 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
287 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
288 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
289 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [100,300]
290 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [100,300]
291 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [150,300]
292 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [150,300]
293 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
294 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
297 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
298 // for reconstruction !):
301 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
302 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
303 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
305 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
306 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
307 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
311 // Geant3 <-> EUCLID conversion
312 // ============================
314 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
315 // media to two ASCII files (called by default ITSgeometry.euc and
316 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
317 // The default (=0) means that you dont want to use this facility.
325 //============================ TPC parameters ================================
326 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
327 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
328 // --- sectors are specified, any value other than that requires at least one
329 // --- sector (lower or upper)to be specified!
330 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
331 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
332 // --- SecLows - number of lower sectors specified (up to 6)
333 // --- SecUps - number of upper sectors specified (up to 12)
334 // --- Sens - sensitive strips for the Slow Simulator !!!
335 // --- This does NOT work if all S or L-sectors are specified, i.e.
336 // --- if SecAL or SecAU < 0
339 //-----------------------------------------------------------------------------
341 // gROOT->LoadMacro("SetTPCParam.C");
342 // AliTPCParam *param = SetTPCParam();
343 AliTPC *TPC = new AliTPCv2("TPC", "Default");
345 // All sectors included
353 //=================== TOF parameters ============================
354 AliTOF *TOF = new AliTOFv2("TOF", "normal TOF");
359 //=================== RICH parameters ===========================
360 AliRICH *RICH = new AliRICHv1("RICH", "normal RICH");
367 //=================== ZDC parameters ============================
369 AliZDC *ZDC = new AliZDCv1("ZDC", "normal ZDC");
374 //=================== CASTOR parameters ============================
376 AliCASTOR *CASTOR = new AliCASTORv1("CASTOR", "normal CASTOR");
381 //=================== TRD parameters ============================
383 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
385 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
388 // With hole in front of PHOS
390 // With hole in front of RICH
393 AliTRDsim *TRDsim = TRD->CreateTR();
398 //=================== FMD parameters ============================
400 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
405 //=================== MUON parameters ===========================
407 AliMUON *MUON = new AliMUONv1("MUON", "default");
409 //=================== PHOS parameters ===========================
413 AliPHOS *PHOS = new AliPHOSv1("PHOS", "GPS2");
419 //=================== PMD parameters ============================
421 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
423 PMD->SetPAR(1., 1., 0.8, 0.02);
424 PMD->SetIN(6., 18., -580., 27., 27.);
425 PMD->SetGEO(0.0, 0.2, 4.);
426 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
429 if (iEMCAL && !iRICH)
431 //=================== EMCAL parameters ============================
432 AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "EMCALArch1a");
437 //=================== START parameters ============================
438 AliSTART *START = new AliSTARTv1("START", "START Detector");