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>
12 #include <TGeant3TGeo.h>
14 #include "STEER/AliRunLoader.h"
15 #include "STEER/AliRun.h"
16 #include "STEER/AliConfig.h"
17 #include "PYTHIA6/AliDecayerPythia.h"
18 #include "EVGEN/AliGenCocktail.h"
19 #include "EVGEN/AliGenHIJINGpara.h"
20 #include "STEER/AliMagFMaps.h"
21 #include "STRUCT/AliBODY.h"
22 #include "STRUCT/AliMAG.h"
23 #include "STRUCT/AliABSOv0.h"
24 #include "STRUCT/AliDIPOv2.h"
25 #include "STRUCT/AliHALL.h"
26 #include "STRUCT/AliFRAMEv2.h"
27 #include "STRUCT/AliSHILv2.h"
28 #include "STRUCT/AliPIPEv0.h"
29 #include "ITS/AliITSvPPRasymmFMD.h"
30 #include "TPC/AliTPCv2.h"
31 #include "TOF/AliTOFv4T0.h"
32 #include "HMPID/AliHMPIDv1.h"
33 #include "ZDC/AliZDCv2.h"
34 #include "TRD/AliTRDv1.h"
35 #include "FMD/AliFMDv1.h"
36 #include "MUON/AliMUONv1.h"
37 #include "MUON/AliMUONSt1GeometryBuilderV2.h"
38 #include "MUON/AliMUONSt2GeometryBuilderV2.h"
39 #include "MUON/AliMUONSlatGeometryBuilder.h"
40 #include "MUON/AliMUONTriggerGeometryBuilder.h"
41 #include "PHOS/AliPHOSv1.h"
42 #include "PMD/AliPMDv1.h"
43 #include "T0/AliT0v1.h"
44 #include "EMCAL/AliEMCALv2.h"
45 #include "ACORDE/AliACORDEv0.h"
46 #include "VZERO/AliVZEROv5.h"
49 Float_t EtaToTheta(Float_t arg);
54 static PprGeo_t geo = kHoles;
58 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
59 // Theta range given through pseudorapidity limits 22/6/2001
61 // Set Random Number seed
62 gRandom->SetSeed(123456); // Set 0 to use the currecnt time
63 AliLog::Message(AliLog::kInfo, Form("Seed for random number generation = %d",gRandom->GetSeed()), "Config.C", "Config.C", "Config()","Config.C", __LINE__);
66 // libraries required by geant321
68 gSystem->Load("libgeant321");
71 new TGeant3TGeo("C++ Interface to Geant3");
75 AliLog::Message(AliLog::kInfo, "Creating Run Loader", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
77 rl = AliRunLoader::Open("galice.root",
78 AliConfig::GetDefaultEventFolderName(),
82 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
85 rl->SetCompressionLevel(2);
86 rl->SetNumberOfEventsPerFile(3);
87 gAlice->SetRunLoader(rl);
90 // Set External decayer
91 TVirtualMCDecayer *decayer = new AliDecayerPythia();
93 decayer->SetForceDecay(kAll);
95 gMC->SetExternalDecayer(decayer);
96 //=======================================================================
97 // ************* STEERING parameters FOR ALICE SIMULATION **************
98 // --- Specify event type to be tracked through the ALICE setup
99 // --- All positions are in cm, angles in degrees, and P and E in GeV
102 gMC->SetProcess("DCAY",1);
103 gMC->SetProcess("PAIR",1);
104 gMC->SetProcess("COMP",1);
105 gMC->SetProcess("PHOT",1);
106 gMC->SetProcess("PFIS",0);
107 gMC->SetProcess("DRAY",0);
108 gMC->SetProcess("ANNI",1);
109 gMC->SetProcess("BREM",1);
110 gMC->SetProcess("MUNU",1);
111 gMC->SetProcess("CKOV",1);
112 gMC->SetProcess("HADR",1);
113 gMC->SetProcess("LOSS",2);
114 gMC->SetProcess("MULS",1);
115 gMC->SetProcess("RAYL",1);
117 Float_t cut = 1.e-3; // 1MeV cut by default
118 Float_t tofmax = 1.e10;
120 gMC->SetCut("CUTGAM", cut);
121 gMC->SetCut("CUTELE", cut);
122 gMC->SetCut("CUTNEU", cut);
123 gMC->SetCut("CUTHAD", cut);
124 gMC->SetCut("CUTMUO", cut);
125 gMC->SetCut("BCUTE", cut);
126 gMC->SetCut("BCUTM", cut);
127 gMC->SetCut("DCUTE", cut);
128 gMC->SetCut("DCUTM", cut);
129 gMC->SetCut("PPCUTM", cut);
130 gMC->SetCut("TOFMAX", tofmax);
133 int nParticles = 100;
134 if (gSystem->Getenv("CONFIG_NPARTICLES"))
136 nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
139 AliGenCocktail *gener = new AliGenCocktail();
140 gener->SetPhiRange(220, 320);
141 // Set pseudorapidity range from -0.13 to 0.13.
142 Float_t thmin = EtaToTheta(+0.13); // theta min. <---> eta max
143 Float_t thmax = EtaToTheta(-0.13); // theta max. <---> eta min
144 gener->SetThetaRange(thmin,thmax);
145 gener->SetOrigin(0, 0, 0); //vertex position
146 gener->SetSigma(0, 0, 0); //Sigma in (X,Y,Z) (cm) on IP position
148 AliGenBox *genbox = new AliGenBox(nParticles);
149 genbox->SetPart(kElectron);
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 AliTPC *TPC = new AliTPCv2("TPC", "Default");
310 //=================== TOF parameters ============================
311 AliTOF *TOF = new AliTOFv4T0("TOF", "normal TOF");
317 //=================== HMPID parameters ===========================
318 AliHMPID *HMPID = new AliHMPIDv1("HMPID", "normal HMPID");
325 //=================== ZDC parameters ============================
327 AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC");
332 //=================== TRD parameters ============================
334 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
336 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
339 // With hole in front of PHOS
341 // With hole in front of HMPID
345 AliTRDsim *TRDsim = TRD->CreateTR();
350 //=================== FMD parameters ============================
351 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
356 //=================== MUON parameters ===========================
357 // New MUONv1 version (geometry defined via builders)
358 AliMUON *MUON = new AliMUONv1("MUON", "default");
359 ((AliMUONv1*)MUON)->SetStepManagerVersionDE(true);
360 MUON->AddGeometryBuilder(new AliMUONSt1GeometryBuilderV2(MUON));
361 MUON->AddGeometryBuilder(new AliMUONSt2GeometryBuilderV2(MUON));
362 MUON->AddGeometryBuilder(new AliMUONSlatGeometryBuilder(MUON));
363 MUON->AddGeometryBuilder(new AliMUONTriggerGeometryBuilder(MUON));
365 //=================== PHOS parameters ===========================
369 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
375 //=================== PMD parameters ============================
376 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
381 //=================== T0 parameters ============================
382 AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
387 //=================== EMCAL parameters ============================
388 AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "SHISH");
393 //=================== ACORDE parameters ============================
394 AliACORDE *ACORDE = new AliACORDEv0("ACORDE", "normal ACORDE");
399 //=================== ACORDE parameters ============================
400 AliVZERO *VZERO = new AliVZEROv5("VZERO", "normal VZERO");
403 AliLog::Message(AliLog::kInfo, "End of Config", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
407 Float_t EtaToTheta(Float_t arg){
408 return (180./TMath::Pi())*2.*atan(exp(-arg));