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Commit | Line | Data |
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e0ef9f4b | 1 | AliGenerator* CreateGenerator(); |
2 | ||
3 | void pythia8(Int_t nev = 1, char* filename = "galice.root") | |
4 | { | |
5 | // Runloader | |
6 | gSystem->Load("liblhapdf.so"); | |
7 | gSystem->Load("libEGPythia6.so"); | |
8 | gSystem->Load("libpythia6.so"); | |
9 | gSystem->Load("libAliPythia6.so"); | |
10 | gSystem->Load("libpythia8.so"); | |
11 | gSystem->Load("libEGPythia8.so"); | |
12 | gSystem->Load("libAliPythia8.so"); | |
13 | ||
14 | AliRunLoader* rl = AliRunLoader::Open("galice.root","FASTRUN","recreate"); | |
15 | ||
16 | rl->SetCompressionLevel(2); | |
17 | rl->SetNumberOfEventsPerFile(nev); | |
18 | rl->LoadKinematics("RECREATE"); | |
19 | rl->MakeTree("E"); | |
20 | gAlice->SetRunLoader(rl); | |
21 | ||
22 | // Create stack | |
23 | rl->MakeStack(); | |
24 | AliStack* stack = rl->Stack(); | |
25 | ||
26 | // Header | |
27 | AliHeader* header = rl->GetHeader(); | |
28 | // | |
29 | // Create and Initialize Generator | |
30 | AliGenerator *gener = CreateGenerator(); | |
31 | gener->Init(); | |
e0ef9f4b | 32 | gener->SetStack(stack); |
33 | ||
34 | // | |
35 | // Event Loop | |
36 | // | |
37 | Int_t iev; | |
38 | ||
39 | for (iev = 0; iev < nev; iev++) { | |
40 | ||
41 | printf("\n \n Event number %d \n \n", iev); | |
42 | ||
43 | // Initialize event | |
44 | header->Reset(0,iev); | |
45 | rl->SetEventNumber(iev); | |
46 | stack->Reset(); | |
47 | rl->MakeTree("K"); | |
48 | // stack->ConnectTree(); | |
49 | ||
50 | // Generate event | |
51 | gener->Generate(); | |
52 | // Analysis | |
53 | Int_t npart = stack->GetNprimary(); | |
54 | printf("Analyse %d Particles\n", npart); | |
55 | for (Int_t part=0; part<npart; part++) { | |
56 | TParticle *MPart = stack->Particle(part); | |
57 | Int_t mpart = MPart->GetPdgCode(); | |
58 | // printf("Particle %d\n", mpart); | |
59 | } | |
60 | ||
61 | // Finish event | |
62 | header->SetNprimary(stack->GetNprimary()); | |
63 | header->SetNtrack(stack->GetNtrack()); | |
64 | // I/O | |
65 | // | |
66 | stack->FinishEvent(); | |
67 | header->SetStack(stack); | |
68 | rl->TreeE()->Fill(); | |
69 | rl->WriteKinematics("OVERWRITE"); | |
70 | ||
71 | } // event loop | |
72 | // | |
73 | // Termination | |
74 | // Generator | |
75 | gener->FinishRun(); | |
76 | // Write file | |
77 | rl->WriteHeader("OVERWRITE"); | |
78 | gener->Write(); | |
79 | rl->Write(); | |
80 | ||
81 | } | |
82 | ||
83 | ||
84 | AliGenerator* CreateGenerator() | |
85 | { | |
86 | AliGenPythiaPlus* gener = new AliGenPythiaPlus(AliPythia8::Instance()); | |
87 | // | |
88 | // | |
e0ef9f4b | 89 | gener->SetProcess(kPyMb); |
90 | // Centre of mass energy | |
91 | gener->SetEnergyCMS(14000.); | |
e0ef9f4b | 92 | // Initialize generator |
a8f9bdb0 | 93 | gener->SetEventListRange(-1, 10) |
e0ef9f4b | 94 | return gener; |
95 | } | |
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103 |