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Commit | Line | Data |
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8bb5c9a6 | 1 | AliGenerator* CreateGenerator(); |
2 | ||
3 | void fastGen(Int_t nev = 1, char* filename = "galice.root") | |
4 | { | |
d2c2889f | 5 | // Load libraries |
4070f709 | 6 | gSystem->Load("liblhapdf"); |
7 | gSystem->Load("libpythia6"); | |
8 | gSystem->Load("libEGPythia6"); | |
9 | gSystem->Load("libAliPythia6"); | |
d2c2889f | 10 | |
9c653bef | 11 | // Runloader |
12 | ||
13 | AliRunLoader* rl = AliRunLoader::Open("galice.root","FASTRUN","recreate"); | |
14 | ||
15 | rl->SetCompressionLevel(2); | |
16 | rl->SetNumberOfEventsPerFile(nev); | |
17 | rl->LoadKinematics("RECREATE"); | |
18 | rl->MakeTree("E"); | |
19 | gAlice->SetRunLoader(rl); | |
20 | ||
8bb5c9a6 | 21 | // Create stack |
9c653bef | 22 | rl->MakeStack(); |
23 | AliStack* stack = rl->Stack(); | |
24 | ||
25 | // Header | |
26 | AliHeader* header = rl->GetHeader(); | |
8bb5c9a6 | 27 | // |
28 | // Create and Initialize Generator | |
29 | AliGenerator *gener = CreateGenerator(); | |
30 | gener->Init(); | |
31 | gener->SetStack(stack); | |
32 | ||
33 | // | |
34 | // Event Loop | |
35 | // | |
36 | Int_t iev; | |
37 | ||
38 | for (iev = 0; iev < nev; iev++) { | |
39 | ||
40 | printf("\n \n Event number %d \n \n", iev); | |
41 | ||
42 | // Initialize event | |
43 | header->Reset(0,iev); | |
9c653bef | 44 | rl->SetEventNumber(iev); |
db11648d | 45 | stack->Reset(); |
9c653bef | 46 | rl->MakeTree("K"); |
47 | // stack->ConnectTree(); | |
48 | ||
8bb5c9a6 | 49 | // Generate event |
50 | gener->Generate(); | |
51 | // Analysis | |
52 | Int_t npart = stack->GetNprimary(); | |
53 | printf("Analyse %d Particles\n", npart); | |
54 | for (Int_t part=0; part<npart; part++) { | |
55 | TParticle *MPart = stack->Particle(part); | |
56 | Int_t mpart = MPart->GetPdgCode(); | |
57 | printf("Particle %d\n", mpart); | |
58 | } | |
59 | ||
60 | // Finish event | |
61 | header->SetNprimary(stack->GetNprimary()); | |
62 | header->SetNtrack(stack->GetNtrack()); | |
63 | // I/O | |
64 | // | |
db11648d | 65 | stack->FinishEvent(); |
66 | header->SetStack(stack); | |
abf2927c | 67 | rl->TreeE()->Fill(); |
9c653bef | 68 | rl->WriteKinematics("OVERWRITE"); |
abf2927c | 69 | |
8bb5c9a6 | 70 | } // event loop |
71 | // | |
72 | // Termination | |
73 | // Generator | |
74 | gener->FinishRun(); | |
8bb5c9a6 | 75 | // Write file |
9c653bef | 76 | rl->WriteHeader("OVERWRITE"); |
abf2927c | 77 | gener->Write(); |
78 | rl->Write(); | |
79 | ||
8bb5c9a6 | 80 | } |
81 | ||
82 | ||
83 | AliGenerator* CreateGenerator() | |
84 | { | |
85 | gener = new AliGenPythia(1); | |
86 | // | |
87 | // | |
88 | // vertex position and smearing | |
89 | gener->SetVertexSmear(kPerEvent); | |
90 | // structure function | |
d2c2889f | 91 | gener->SetStrucFunc(kCTEQ6); |
8bb5c9a6 | 92 | // charm, beauty, charm_unforced, beauty_unforced, jpsi, jpsi_chi, mb |
93 | gener->SetProcess(kPyJets); | |
94 | // Centre of mass energy | |
db11648d | 95 | gener->SetEnergyCMS(5500.); |
8bb5c9a6 | 96 | // Pt transfer of the hard scattering |
db11648d | 97 | gener->SetPtHard(50.,50.2); |
8bb5c9a6 | 98 | // Initialize generator |
99 | return gener; | |
100 | } | |
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