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1 | // Config file test for MUON spectormeter |
2 | // Remember to define the directory and option |
3 | // gAlice->SetConfigFunction("Config('$HOME','box');"); |
4 | |
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5 | void Config(char directory[100]="", char option[6]="param") |
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6 | { |
7 | // |
8 | // Config file for MUON test |
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9 | // |
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10 | |
11 | //===================================================================== |
12 | // Libraries required by geant321 |
13 | gSystem->Load("libgeant321.so"); |
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14 | new TGeant3TGeo("C++ Interface to Geant3"); |
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15 | //======================================================================= |
16 | // Create the output file |
17 | Text_t filename[100]; |
18 | sprintf(filename,"%sgalice.root",directory); |
19 | cout << ">>> Output file is " << filename << endl; |
20 | cout << ">>> Config.C: Creating Run Loader ..."<<endl; |
21 | AliRunLoader* rl=0x0; |
22 | rl = AliRunLoader::Open( |
23 | filename, AliConfig::GetDefaultEventFolderName(), "recreate"); |
24 | if (rl == 0x0) { |
25 | gAlice->Fatal("Config.C","Can not instatiate the Run Loader"); |
26 | return; |
27 | } |
28 | rl->SetCompressionLevel(2); |
29 | rl->SetNumberOfEventsPerFile(100); |
30 | gAlice->SetRunLoader(rl); |
31 | |
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32 | //AliLog::SetModuleDebugLevel("MUON", 1); |
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33 | |
34 | //======================================================================= |
35 | // Set External decayer |
36 | TVirtualMCDecayer *decayer = new AliDecayerPythia(); |
37 | decayer->SetForceDecay(kAll); |
38 | decayer->Init(); |
39 | gMC->SetExternalDecayer(decayer); |
40 | |
41 | // |
42 | //======================================================================= |
43 | // ******* GEANT STEERING parameters FOR ALICE SIMULATION ******* |
44 | gMC->SetProcess("DCAY",1); |
45 | gMC->SetProcess("PAIR",1); |
46 | gMC->SetProcess("COMP",1); |
47 | gMC->SetProcess("PHOT",1); |
48 | gMC->SetProcess("PFIS",0); |
49 | gMC->SetProcess("DRAY",0); |
50 | gMC->SetProcess("ANNI",1); |
51 | gMC->SetProcess("BREM",1); |
52 | gMC->SetProcess("MUNU",1); |
53 | gMC->SetProcess("CKOV",1); |
54 | gMC->SetProcess("HADR",1); |
55 | gMC->SetProcess("LOSS",2); |
56 | gMC->SetProcess("MULS",1); |
57 | gMC->SetProcess("RAYL",1); |
58 | |
59 | Float_t cut = 1.e-3; // 1MeV cut by default |
60 | Float_t tofmax = 1.e10; |
61 | |
62 | gMC->SetCut("CUTGAM", cut); |
63 | gMC->SetCut("CUTELE", cut); |
64 | gMC->SetCut("CUTNEU", cut); |
65 | gMC->SetCut("CUTHAD", cut); |
66 | gMC->SetCut("CUTMUO", cut); |
67 | gMC->SetCut("BCUTE", cut); |
68 | gMC->SetCut("BCUTM", cut); |
69 | gMC->SetCut("DCUTE", cut); |
70 | gMC->SetCut("DCUTM", cut); |
71 | gMC->SetCut("PPCUTM", cut); |
72 | gMC->SetCut("TOFMAX", tofmax); |
73 | // |
74 | //======================================================================= |
75 | // ************* STEERING parameters FOR ALICE SIMULATION ************** |
76 | // Chamber positions |
77 | // From AliMUONConstants class we get : |
78 | // Position Z (along beam) of the chambers (in cm) |
79 | // (from AliMUONConstants class): |
80 | // 533.5, 546.5, 678.5, 693.5, 964.0, 986.0, 1251.5, 1278.5, |
81 | // 1416.5, 1443.5, 1610, 1625., 1710., 1725. |
82 | // Internal Radius (in cm) |
83 | // 36.4, 46.2, 66.0, 80., 80., 100., 100. |
84 | // External Radius (in cm) |
85 | // 183., 245., 395., 560., 563., 850., 900. |
86 | //======================================================================= |
87 | if (!strcmp(option,"box")) { |
88 | AliGenBox * gener = new AliGenBox(1); |
89 | gener->SetMomentumRange(20.,20.1); |
90 | gener->SetPhiRange(0., 360.); |
91 | gener->SetThetaRange(171.000,178.001); |
92 | gener->SetPart(13); // Muons |
93 | gener->SetOrigin(0.,0., 0.); //vertex position |
94 | gener->SetSigma(0.0, 0.0, 0.0); //Sigma in (X,Y,Z) (cm) on IP position |
95 | } |
96 | if (!strcmp(option,"gun")) { |
97 | //********************************************* |
98 | // Example for Fixed Particle Gun * |
99 | //********************************************* |
100 | AliGenFixed *gener = new AliGenFixed(ntracks); |
101 | gener->SetMomentum(10); |
102 | gener->SetPhiRange(0.); |
103 | gener->SetThetaRange(0.); |
104 | gener->SetOrigin(30,30,1200);//vertex position |
105 | gener->SetPart(13); //GEANT particle type 13 is muons |
106 | } |
107 | if (!strcmp(option,"scan")) { |
108 | AliGenScan *gener = new AliGenScan(-1); |
109 | gener->SetMomentumRange(10,10); |
110 | gener->SetPhiRange(0, 0); |
111 | gener->SetThetaRange(-180, -180); |
112 | //vertex position |
113 | //gener->SetSigma(1,1,0); //Sigma in (X,Y,Z) (cm) on IP position |
114 | gener->SetPart(kRootino); |
115 | gener->SetRange(100, -300., 300., 100, -300., 300., 1, 2000, 2000); |
116 | } |
117 | if (!strcmp(option,"param")) { |
118 | //******************************************************* |
119 | // Example for J/psi or Upsilon Production from Parameterisation * |
120 | //******************************************************* |
121 | AliGenParam *gener = new AliGenParam(1, AliGenMUONlib::kUpsilon); |
122 | gener->SetMomentumRange(0,999); |
123 | gener->SetPtRange(0,100.); |
124 | gener->SetPhiRange(0., 360.); |
125 | gener->SetCutOnChild(1); |
126 | gener->SetChildPhiRange(0.,360.); |
127 | gener->SetChildThetaRange(171.0,178.0); |
128 | gener->SetOrigin(0,0,0); //vertex position gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position |
129 | gener->SetForceDecay(kDiMuon); |
130 | gener->SetTrackingFlag(1); |
131 | gener->Init(); |
132 | } |
133 | //============================================================= |
134 | // Field (L3 0.4 T) |
135 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k4kG); |
136 | gAlice->SetField(field); |
137 | |
138 | //=================== Alice BODY parameters ============================= |
139 | AliBODY *BODY = new AliBODY("BODY","Alice envelop"); |
140 | //=================== ABSO parameters ============================ |
141 | AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber"); |
142 | //=================== DIPO parameters ============================ |
143 | AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2"); |
144 | //================== HALL parameters ============================ |
145 | AliHALL *HALL = new AliHALL("HALL", "Alice Hall"); |
146 | //=================== PIPE parameters ============================ |
147 | AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe"); |
148 | //=================== SHIL parameters ============================ |
149 | AliSHIL *SHIL = new AliSHILv2("SHIL", "Shielding Version 2"); |
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150 | |
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151 | //=================== MUON Subsystem =========================== |
152 | cout << ">>> Config.C: Creating AliMUONv1 ..."<<endl; |
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153 | |
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154 | // With the following compact ctor, what you get (in case you wonder...) is : |
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155 | // |
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156 | // - "FactoryV4", that is all stations using new segmentations/mapping |
157 | // - "sdigitizer:AliMUONSDigitizerV2", performing decalibration |
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158 | // - "digitizer:NewDigitizerWithNoiseOldTrigger" => |
159 | // digitizer=AliMUONDigitizerV3, |
160 | // using the "old" trigger code, performing calibration, and |
161 | // generating noise-only digits for the tracker. |
162 | |
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163 | AliMUON *MUON = new AliMUONv1("MUON"); |
164 | |
165 | //To get old behavior (which usage is no longer supported), please use : |
166 | // |
167 | // AliMUON* MUON = new AliMUONv1("MUON","FactoryV3", |
168 | // "AliMUONSDigitizerv1", |
169 | // "AliMUONDigitizerv2"); |
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170 | // |
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171 | // To get brand new trigger code, please use : |
172 | // |
173 | // AliMUON *MUON = new AliMUONv1("MUON", "FactoryV4", |
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174 | // "sdigitizer:AliMUONSDigitizerV2", |
175 | // "digitizer:NewDigitizerNewTrigger"); |
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176 | // activate trigger cluster-size i.e. ResponseTriggerV1 (default/v1 = 0/1) |
177 | // MUON->SetTriggerResponseV1(0); |
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178 | // activate 4/4 trigger coincidence (0(default)/1 = coinc 34/44) |
179 | // MUON->SetTriggerCoinc44(0); |
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180 | // |
181 | // To enable Trigger Chamber Efficiency, please use : |
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182 | // |
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183 | // AliMUON *MUON = new AliMUONv1("MUON", "FactoryV4", |
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184 | // "sdigitizer:AliMUONSDigitizerV2", |
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185 | // "digitizer:NewDigitizerEffTrigger"); |
186 | // |
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187 | // If SetAlign, the detection elements transformations |
188 | // are taken from the input file and not from the code |
189 | // MUON->SetAlign("transform.dat"); |
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190 | |
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191 | // To generate and read scaler trigger events in rawdata |
192 | // MUON->SetTriggerScalerEvent(); |
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193 | |
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194 | // If you want to play with builders, first reset the geometry builder, |
195 | // and then add yours. |
196 | // MUON->ResetGeometryBuilder(); |
197 | // MUON->AddGeometryBuilder(new AliMUONSt1GeometryBuilderV2(MUON)); |
198 | // MUON->AddGeometryBuilder(new AliMUONSt2GeometryBuilderV2(MUON)); |
199 | // MUON->AddGeometryBuilder(new AliMUONSlatGeometryBuilder(MUON)); |
200 | // MUON->AddGeometryBuilder(new AliMUONTriggerGeometryBuilder(MUON)); |
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201 | } |
202 | |
203 | Float_t EtaToTheta(Float_t arg){ |
204 | return (180./TMath::Pi())*2.*atan(exp(-arg)); |
205 | } |