1 enum gentype_t {hijing, hijingParam, gun, box, pythia,
2 param1, param2, param3, param4,
3 cocktail, fluka, halo, ntuple, scan, doublescan};
5 //gentype_t gentype=hijingParam;
6 //gentype_t gentype=hijing;
16 // Switch on Transition Radiation simulation. 6/12/00 18:00
17 // iZDC=1 7/12/00 09:00
18 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
20 // Set Random Number seed
21 // gRandom->SetSeed(12345);
23 new AliGeant3("C++ Interface to Geant3");
25 if (!gSystem->Getenv("CONFIG_FILE"))
27 TFile *rootfile = new TFile("galice.root", "recreate");
28 //TFile *rootfile = new TFile("galice.root", "recreate");
29 rootfile->SetCompressionLevel(2);
32 TGeant3 *geant3 = (TGeant3 *) gMC;
35 // Set External decayer
36 AliDecayer *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 //-----------------------------------------------------------
90 //-----------------------------------------HIJING------------
91 AliGenHijing *gener = new AliGenHijing(-1);
92 gener->SetEnergyCMS(5500);
93 gener->SetReferenceFrame("CMS ");
94 gener->SetProjectile("A ", 208, 82);
95 gener->SetTarget ("A ", 208, 82);
96 gener->SetImpactParameterRange(0, 3.);
97 gener->SetEvaluate(1);
98 gener->KeepFullEvent();
99 gener->SetJetQuenching(1);
100 gener->SetShadowing(1);
101 gener->SetDecaysOff(1);
102 gener->SetTrigger(0);
103 gener->SetSelectAll(0);
104 gener->SetMomentumRange( 0.05 , 1.3 );
105 gener->SetPhiRange( 0.0 , 1.0 );
106 // gener->SetPhiRange(-180.,180.)
107 gener->SetThetaRange(45.0,135.);
108 gener->SetFlavor(0); // 0 - all, 4 - charm and beaty
109 gener->SetOrigin(0., 0.0 ,0);
110 gener->SetSigma(0,0,5.3);
111 gener->SetVertexSmear(kPerEvent);
112 // gener->SetTrackingFlag(0);
115 //-----------------------------------------HijingPARA----------
118 AliGenHIJINGpara *gener = new AliGenHIJINGpara(20);
120 gener->SetMomentumRange(0.1, .7);
121 gener->SetThetaRange(45.,135.);
122 gener->SetPhiRange(0, 360);
123 // gener->SetThetaRange(0.28,179.72);
124 // gener->SetThetaRange(45., 135.);
125 gener->SetOrigin(0, 0, 0); //vertex position
126 gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position
129 //------------------------------------------ Box --------------
131 AliGenBox *gener = new AliGenBox(4000); //ntracks=100
132 gener->SetMomentumRange(0.2,1.0);
133 gener->SetPhiRange(0,360);
134 gener->SetThetaRange(45, 135. );
135 gener->SetOrigin(0,0,0);
137 gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
138 gener->SetPart(321); // K+
139 //gener->SetPart(211); // Pi+
142 //------------------------------------------------------------
144 AliGenCocktail *gener = new AliGenCocktail();
146 AliGenBox *gener1 = new AliGenBox(2*Nmax); //ntracks=100
147 gener1->SetMomentumRange(.050,1.00);
148 //gener1->SetMomentumRange(.050,0.80);
149 gener1->SetPhiRange(0,360);
150 gener1->SetThetaRange(45, 135. );
151 gener1->SetOrigin(0,0,0);
152 gener1->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
153 gener1->SetPart(321); // K+
155 AliGenBox *gener2 = new AliGenBox(2*Nmax); //ntracks=100
156 gener2->SetMomentumRange(.050,1.00);
157 //gener1->SetMomentumRange(.050,0.80);
158 gener2->SetPhiRange(0,360);
159 gener2->SetThetaRange(45, 135. );
160 gener2->SetOrigin(0,0,0);
161 gener2->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
162 gener2->SetPart(2212); // Protons
164 AliGenBox *gener3 = new AliGenBox(Nmax); //ntracks=100
165 gener3->SetMomentumRange(.050,1.00);
166 //gener1->SetMomentumRange(.050,0.80);
167 gener3->SetPhiRange(0,360);
168 gener3->SetThetaRange(45, 135. );
169 gener3->SetOrigin(0,0,0);
170 gener3->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
171 gener3->SetPart(11); // e+
174 AliGenBox *gener4 = new AliGenBox(Nmax); //ntracks=100
175 gener4->SetMomentumRange(.050,1.00);
176 //gener1->SetMomentumRange(.050,0.80);
177 gener4->SetPhiRange(0,360);
178 gener4->SetThetaRange(45, 135. );
179 gener4->SetOrigin(0,0,0);
180 gener4->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
181 gener4->SetPart(211); // pi+
183 gener->SetMomentumRange(.050,1.00);
184 gener->SetPhiRange(0,360);
185 gener->SetThetaRange(45., 135. );
186 gener->SetOrigin(0,0,0);
187 gener->SetSigma(0,0,0);
188 gener->AddGenerator(gener1,"box1",0.5);
189 gener->AddGenerator(gener2,"box2",0.5);
190 gener->AddGenerator(gener3,"box3",0.5);
191 gener->AddGenerator(gener4,"box4",0.5);
199 // Activate this line if you want the vertex smearing to happen
202 //gener->SetVertexSmear(perTrack);
204 gAlice->SetField(-999, 2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
226 //=================== Alice BODY parameters =============================
227 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
232 //=================== MAG parameters ============================
233 // --- Start with Magnet since detector layouts may be depending ---
234 // --- on the selected Magnet dimensions ---
235 AliMAG *MAG = new AliMAG("MAG", "Magnet");
241 //=================== ABSO parameters ============================
242 AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber");
247 //=================== DIPO parameters ============================
249 AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2");
254 //=================== HALL parameters ============================
256 AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
262 //=================== FRAME parameters ============================
264 AliFRAME *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
270 //=================== SHIL parameters ============================
272 AliSHIL *SHIL = new AliSHILv0("SHIL", "Shielding");
278 //=================== PIPE parameters ============================
280 AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe");
285 //=================== ITS parameters ============================
287 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
288 // almost all other detectors. This involves the fact that the ITS geometry
289 // still has several options to be followed in parallel in order to determine
290 // the best set-up which minimizes the induced background. All the geometries
291 // available to date are described in the following. Read carefully the comments
292 // and use the default version (the only one uncommented) unless you are making
293 // comparisons and you know what you are doing. In this case just uncomment the
294 // ITS geometry you want to use and run Aliroot.
296 // Detailed geometries:
299 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
301 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
303 AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
304 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
305 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
306 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
307 ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [100,300]
308 ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [100,300]
309 ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [150,300]
310 ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [150,300]
311 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
312 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
314 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
315 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
316 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
317 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
318 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [100,300]
319 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [100,300]
320 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [150,300]
321 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [150,300]
322 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
323 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
326 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
327 // for reconstruction !):
330 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
331 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
332 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
334 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
335 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
336 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
340 // Geant3 <-> EUCLID conversion
341 // ============================
343 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
344 // media to two ASCII files (called by default ITSgeometry.euc and
345 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
346 // The default (=0) means that you dont want to use this facility.
354 //============================ TPC parameters ================================
355 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
356 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
357 // --- sectors are specified, any value other than that requires at least one
358 // --- sector (lower or upper)to be specified!
359 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
360 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
361 // --- SecLows - number of lower sectors specified (up to 6)
362 // --- SecUps - number of upper sectors specified (up to 12)
363 // --- Sens - sensitive strips for the Slow Simulator !!!
364 // --- This does NOT work if all S or L-sectors are specified, i.e.
365 // --- if SecAL or SecAU < 0
368 //-----------------------------------------------------------------------------
370 // gROOT->LoadMacro("SetTPCParam.C");
371 // AliTPCParam *param = SetTPCParam();
372 AliTPC *TPC = new AliTPCv2("TPC", "Default");
374 // All sectors included
382 //=================== TOF parameters ============================
383 AliTOF *TOF = new AliTOFv2("TOF", "normal TOF");
388 //=================== RICH parameters ===========================
389 AliRICH *RICH = new AliRICHv1("RICH", "normal RICH");
396 //=================== ZDC parameters ============================
398 AliZDC *ZDC = new AliZDCv1("ZDC", "normal ZDC");
403 //=================== CASTOR parameters ============================
405 AliCASTOR *CASTOR = new AliCASTORv1("CASTOR", "normal CASTOR");
410 //=================== TRD parameters ============================
412 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
414 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
417 // With hole in front of PHOS
419 // With hole in front of RICH
422 AliTRDsim *TRDsim = TRD->CreateTR();
427 //=================== FMD parameters ============================
429 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
434 //=================== MUON parameters ===========================
436 AliMUON *MUON = new AliMUONv1("MUON", "default");
438 //=================== PHOS parameters ===========================
442 AliPHOS *PHOS = new AliPHOSv1("PHOS", "GPS2");
448 //=================== PMD parameters ============================
450 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
452 PMD->SetPAR(1., 1., 0.8, 0.02);
453 PMD->SetIN(6., 18., -580., 27., 27.);
454 PMD->SetGEO(0.0, 0.2, 4.);
455 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
461 //=================== START parameters ============================
462 AliSTART *START = new AliSTARTv1("START", "START Detector");