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Commit | Line | Data |
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88cb7938 | 1 | // Config file test for MUON spectormeter |
2 | // Remember to define the directory and option | |
3 | // gAlice->SetConfigFunction("Config('$HOME','box');"); | |
4 | ||
5 | void Config(char directory[100]="", char option[6]="box") | |
6 | { | |
7 | // | |
8 | // Config file for MUON test | |
ecff27be | 9 | // Gines MARITNEZ, Subatech, mai 2003, august 2003 |
88cb7938 | 10 | // |
11 | ||
12 | //===================================================================== | |
13 | // Libraries required by geant321 | |
14 | gSystem->Load("libgeant321.so"); | |
88cb7938 | 15 | new TGeant3("C++ Interface to Geant3"); |
88cb7938 | 16 | //======================================================================= |
17 | // Create the output file | |
18 | Text_t filename[100]; | |
19 | sprintf(filename,"%sgalice.root",directory); | |
20 | cout << ">>> Output file is " << filename << endl; | |
21 | cout << ">>> Config_MUON_test.C: Creating Run Loader ..."<<endl; | |
ecff27be | 22 | AliRunLoader* rl=0x0; |
23 | rl = AliRunLoader::Open( | |
88cb7938 | 24 | filename, AliConfig::fgkDefaultEventFolderName, "recreate"); |
25 | if (rl == 0x0) { | |
26 | gAlice->Fatal("Config_MUON_test.C","Can not instatiate the Run Loader"); | |
27 | return; | |
28 | } | |
29 | rl->SetCompressionLevel(2); | |
30 | rl->SetNumberOfEventsPerFile(100); | |
31 | gAlice->SetRunLoader(rl); | |
32 | ||
ecff27be | 33 | |
88cb7938 | 34 | //======================================================================= |
35 | // Set External decayer | |
ecff27be | 36 | TVirtualMCDecayer *decayer = new AliDecayerPythia(); |
88cb7938 | 37 | decayer->SetForceDecay(kAll); |
38 | decayer->Init(); | |
39 | gMC->SetExternalDecayer(decayer); | |
40 | ||
41 | // | |
42 | //======================================================================= | |
43 | // ******* GEANT STEERING parameters FOR ALICE SIMULATION ******* | |
ecff27be | 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); | |
88cb7938 | 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); | |
9bf560e7 | 89 | gener->SetMomentumRange(20.,20.1); |
90 | gener->SetPhiRange(45., 45.01); | |
91 | gener->SetThetaRange(4.000,4.001); | |
88cb7938 | 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,"param")) { | |
108 | //******************************************************* | |
109 | // Example for J/psi or Upsilon Production from Parameterisation * | |
110 | //******************************************************* | |
111 | AliGenParam *gener = new AliGenParam(1, AliGenMUONlib::kUpsilon); | |
112 | gener->SetMomentumRange(0,999); | |
113 | gener->SetPtRange(0,100.); | |
114 | gener->SetPhiRange(-180, 180); | |
115 | gener->SetYRange(2.5,4); | |
116 | gener->SetCutOnChild(1); | |
117 | gener->SetChildThetaRange(2.0,9); | |
118 | gener->SetOrigin(0,0,0); //vertex position gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position | |
119 | gener->SetForceDecay(kDiMuon); | |
120 | gener->SetTrackingFlag(1); | |
9bf560e7 | 121 | gener->Init(); |
88cb7938 | 122 | } |
123 | ||
9def5bff | 124 | //============================================================= |
125 | // Field (L3 0.4 T) | |
9bf560e7 | 126 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., AliMagFMaps::k4kG); |
127 | gAlice->SetField(field); | |
128 | //gAlice->SetField(2,1) ; //(-999,2); | |
129 | ||
88cb7938 | 130 | |
131 | //=================== Alice BODY parameters ============================= | |
132 | AliBODY *BODY = new AliBODY("BODY","Alice envelop"); | |
133 | ||
134 | ||
135 | //=================== MUON Subsystem =========================== | |
136 | AliMUONv1 *MUON = new AliMUONv1("MUON","default"); | |
137 | ||
138 | } | |
139 | ||
140 | ||
141 | Float_t EtaToTheta(Float_t arg){ | |
142 | return (180./TMath::Pi())*2.*atan(exp(-arg)); | |
143 | } |