1 // One can use the configuration macro in compiled mode by
2 // root [0] gSystem->Load("libgeant321");
3 // root [0] gSystem->SetIncludePath("-I$ROOTSYS/include -I$ALICE_ROOT/include\
4 // -I$ALICE_ROOT -I$ALICE/geant3/TGeant3");
5 // root [0] .x grun.C(1,"Config.C++")
7 #if !defined(__CINT__) || defined(__MAKECINT__)
11 #include <TVirtualMC.h>
13 #include "STEER/AliRunLoader.h"
14 #include "STEER/AliRun.h"
15 #include "STEER/AliConfig.h"
16 #include "PYTHIA6/AliDecayerPythia.h"
17 #include "EVGEN/AliGenCocktail.h"
18 #include "EVGEN/AliGenHIJINGpara.h"
19 #include "STEER/AliMagFMaps.h"
20 #include "STRUCT/AliBODY.h"
21 #include "STRUCT/AliMAG.h"
22 #include "STRUCT/AliABSOv0.h"
23 #include "STRUCT/AliDIPOv2.h"
24 #include "STRUCT/AliHALL.h"
25 #include "STRUCT/AliFRAMEv2.h"
26 #include "STRUCT/AliSHILv2.h"
27 #include "STRUCT/AliPIPEv0.h"
28 #include "ITS/AliITSvPPRasymmFMD.h"
29 #include "TPC/AliTPCv2.h"
30 #include "TOF/AliTOFv2FHoles.h"
31 #include "TOF/AliTOFv4T0.h"
32 #include "RICH/AliRICHv1.h"
33 #include "ZDC/AliZDCv2.h"
34 #include "TRD/AliTRDv1.h"
35 #include "FMD/AliFMDv1.h"
36 #include "MUON/AliMUONv1.h"
37 #include "PHOS/AliPHOSv1.h"
38 #include "PMD/AliPMDv1.h"
39 #include "START/AliSTARTv1.h"
40 #include "EMCAL/AliEMCALv1.h"
41 #include "CRT/AliCRTv0.h"
42 #include "VZERO/AliVZEROv2.h"
45 Float_t EtaToTheta(Float_t arg);
46 static Int_t eventsPerRun = 100;
51 static PprGeo_t geo = kHoles;
55 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
56 // Theta range given through pseudorapidity limits 22/6/2001
58 // Set Random Number seed
59 gRandom->SetSeed(123456); // Set 0 to use the currecnt time
60 cout<<"Seed for random number generation= "<<gRandom->GetSeed()<<endl;
63 // libraries required by geant321
65 gSystem->Load("libgeant321");
68 new TGeant3("C++ Interface to Geant3");
72 cout<<"Config.C: Creating Run Loader ..."<<endl;
73 rl = AliRunLoader::Open("galice.root",
74 AliConfig::fgkDefaultEventFolderName,
78 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
81 rl->SetCompressionLevel(2);
82 rl->SetNumberOfEventsPerFile(3);
83 gAlice->SetRunLoader(rl);
86 // Set External decayer
87 TVirtualMCDecayer *decayer = new AliDecayerPythia();
89 decayer->SetForceDecay(kAll);
91 gMC->SetExternalDecayer(decayer);
92 //=======================================================================
93 // ************* STEERING parameters FOR ALICE SIMULATION **************
94 // --- Specify event type to be tracked through the ALICE setup
95 // --- All positions are in cm, angles in degrees, and P and E in GeV
98 gMC->SetProcess("DCAY",1);
99 gMC->SetProcess("PAIR",1);
100 gMC->SetProcess("COMP",1);
101 gMC->SetProcess("PHOT",1);
102 gMC->SetProcess("PFIS",0);
103 gMC->SetProcess("DRAY",0);
104 gMC->SetProcess("ANNI",1);
105 gMC->SetProcess("BREM",1);
106 gMC->SetProcess("MUNU",1);
107 gMC->SetProcess("CKOV",1);
108 gMC->SetProcess("HADR",1);
109 gMC->SetProcess("LOSS",2);
110 gMC->SetProcess("MULS",1);
111 gMC->SetProcess("RAYL",1);
113 Float_t cut = 1.e-3; // 1MeV cut by default
114 Float_t tofmax = 1.e10;
116 gMC->SetCut("CUTGAM", cut);
117 gMC->SetCut("CUTELE", cut);
118 gMC->SetCut("CUTNEU", cut);
119 gMC->SetCut("CUTHAD", cut);
120 gMC->SetCut("CUTMUO", cut);
121 gMC->SetCut("BCUTE", cut);
122 gMC->SetCut("BCUTM", cut);
123 gMC->SetCut("DCUTE", cut);
124 gMC->SetCut("DCUTM", cut);
125 gMC->SetCut("PPCUTM", cut);
126 gMC->SetCut("TOFMAX", tofmax);
129 int nParticles = 100;
130 if (gSystem->Getenv("CONFIG_NPARTICLES"))
132 nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
135 AliGenCocktail *gener = new AliGenCocktail();
136 gener->SetPhiRange(0, 360);
137 // Set pseudorapidity range from -8 to 8.
138 Float_t thmin = EtaToTheta(8); // theta min. <---> eta max
139 Float_t thmax = EtaToTheta(-8); // theta max. <---> eta min
140 gener->SetThetaRange(thmin,thmax);
141 gener->SetOrigin(0, 0, 0); //vertex position
142 gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position
144 AliGenHIJINGpara *hijingparam = new AliGenHIJINGpara(nParticles);
145 hijingparam->SetMomentumRange(0.2, 999);
146 gener->AddGenerator(hijingparam,"HIJING PARAM",1);
148 // AliGenBox *genbox = new AliGenBox(nParticles);
149 // genbox->SetPart(22);
150 // genbox->SetPtRange(0.3, 10.00);
151 // gener->AddGenerator(genbox,"GENBOX GAMMA for PHOS",1);
156 // Activate this line if you want the vertex smearing to happen
159 //gener->SetVertexSmear(perTrack);
161 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., 1);
162 gAlice->SetField(field);
187 //=================== Alice BODY parameters =============================
188 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
192 //=================== MAG parameters ============================
193 // --- Start with Magnet since detector layouts may be depending ---
194 // --- on the selected Magnet dimensions ---
195 AliMAG *MAG = new AliMAG("MAG", "Magnet");
201 //=================== ABSO parameters ============================
202 AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber");
207 //=================== DIPO parameters ============================
209 AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2");
214 //=================== HALL parameters ============================
216 AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
222 //=================== FRAME parameters ============================
224 AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
234 //=================== SHIL parameters ============================
236 AliSHIL *SHIL = new AliSHILv2("SHIL", "Shielding Version 2");
242 //=================== PIPE parameters ============================
244 AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe");
249 //=================== ITS parameters ============================
251 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
252 // almost all other detectors. This involves the fact that the ITS geometry
253 // still has several options to be followed in parallel in order to determine
254 // the best set-up which minimizes the induced background. All the geometries
255 // available to date are described in the following. Read carefully the comments
256 // and use the default version (the only one uncommented) unless you are making
257 // comparisons and you know what you are doing. In this case just uncomment the
258 // ITS geometry you want to use and run Aliroot.
260 // Detailed geometries:
264 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","ITS PPR detailed version with asymmetric services");
265 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
266 ITS->SetReadDet(kTRUE); // don't touch this parameter if you're not an ITS developer
267 // ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
268 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
269 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
270 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
271 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
272 ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
273 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
277 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
278 // for reconstruction !):
281 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
282 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
283 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
285 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
286 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
287 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
291 // Geant3 <-> EUCLID conversion
292 // ============================
294 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
295 // media to two ASCII files (called by default ITSgeometry.euc and
296 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
297 // The default (=0) means that you dont want to use this facility.
304 //============================ TPC parameters ================================
305 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
306 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
307 // --- sectors are specified, any value other than that requires at least one
308 // --- sector (lower or upper)to be specified!
309 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
310 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
311 // --- SecLows - number of lower sectors specified (up to 6)
312 // --- SecUps - number of upper sectors specified (up to 12)
313 // --- Sens - sensitive strips for the Slow Simulator !!!
314 // --- This does NOT work if all S or L-sectors are specified, i.e.
315 // --- if SecAL or SecAU < 0
318 //-----------------------------------------------------------------------------
320 // gROOT->LoadMacro("SetTPCParam.C");
321 // AliTPCParam *param = SetTPCParam();
322 AliTPC *TPC = new AliTPCv2("TPC", "Default");
324 // All sectors included
332 //=================== TOF parameters ============================
333 AliTOF *TOF = new AliTOFv2FHoles("TOF", "TOF with Holes");
335 AliTOF *TOF = new AliTOFv4T0("TOF", "normal TOF");
342 //=================== RICH parameters ===========================
343 AliRICH *RICH = new AliRICHv1("RICH", "normal RICH");
350 //=================== ZDC parameters ============================
352 AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC");
357 //=================== TRD parameters ============================
359 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
361 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
364 // With hole in front of PHOS
366 // With hole in front of RICH
370 AliTRDsim *TRDsim = TRD->CreateTR();
375 //=================== FMD parameters ============================
376 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
381 //=================== MUON parameters ===========================
383 AliMUON *MUON = new AliMUONv1("MUON", "default");
385 //=================== PHOS parameters ===========================
389 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
395 //=================== PMD parameters ============================
396 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
401 //=================== START parameters ============================
402 AliSTART *START = new AliSTARTv1("START", "START Detector");
407 //=================== EMCAL parameters ============================
408 AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "G56_2_55_19_104_14");
413 //=================== CRT parameters ============================
414 AliCRT *CRT = new AliCRTv0("CRT", "normal ACORDE");
419 //=================== CRT parameters ============================
420 AliVZERO *VZERO = new AliVZEROv2("VZERO", "normal VZERO");
423 cout << "End of Config.C" << endl;
427 Float_t EtaToTheta(Float_t arg){
428 return (180./TMath::Pi())*2.*atan(exp(-arg));