|
| 1 | +int External() { |
| 2 | + |
| 3 | + int checkPdgDecayMuon = 13; |
| 4 | + int checkPdgQuarkOne{4}; |
| 5 | + int checkPdgQuarkTwo{5}; |
| 6 | + float ratioQuarkOneTwo{2.}; |
| 7 | + |
| 8 | + float ratioTrigger = 1./3; // one event triggered out of 5 |
| 9 | + |
| 10 | + std::string path{"o2sim_Kine.root"}; |
| 11 | + |
| 12 | + TFile file(path.c_str(), "READ"); |
| 13 | + if (file.IsZombie()) { |
| 14 | + std::cerr << "Cannot open ROOT file" << path << "\n"; |
| 15 | + return 1; |
| 16 | + } |
| 17 | + |
| 18 | + auto tree = (TTree *)file.Get("o2sim"); |
| 19 | + if (!tree) { |
| 20 | + std::cerr << "Cannot find tree o2sim in file" << path << "\n"; |
| 21 | + return 1; |
| 22 | + } |
| 23 | + |
| 24 | + std::vector<o2::MCTrack> *tracks{}; |
| 25 | + tree->SetBranchAddress("MCTrack", &tracks); |
| 26 | + |
| 27 | + o2::dataformats::MCEventHeader *eventHeader = nullptr; |
| 28 | + tree->SetBranchAddress("MCEventHeader.", &eventHeader); |
| 29 | + |
| 30 | + int nEventsMB{0}; |
| 31 | + int nEventsInjOne{0}; |
| 32 | + int nEventsInjTwo{0}; |
| 33 | + int nQuarks{0}; |
| 34 | + int nMuons{0}; |
| 35 | + |
| 36 | + int nMuonsInAcceptance{}; |
| 37 | + |
| 38 | + auto nEvents = tree->GetEntries(); |
| 39 | + |
| 40 | + for (int i = 0; i < nEvents; i++) { |
| 41 | + tree->GetEntry(i); |
| 42 | + // check subgenerator information |
| 43 | + if (eventHeader->hasInfo(o2::mcgenid::GeneratorProperty::SUBGENERATORID)) { |
| 44 | + bool isValid = false; |
| 45 | + int subGeneratorId = eventHeader->getInfo<int>(o2::mcgenid::GeneratorProperty::SUBGENERATORID, isValid); |
| 46 | + if (subGeneratorId == 0) { |
| 47 | + nEventsMB++; |
| 48 | + } else if (subGeneratorId == checkPdgQuarkOne) { |
| 49 | + nEventsInjOne++; |
| 50 | + } else if (subGeneratorId == checkPdgQuarkTwo) { |
| 51 | + nEventsInjTwo++; |
| 52 | + } |
| 53 | + } |
| 54 | + |
| 55 | + int nmuonsev = 0; |
| 56 | + int nmuonsevinacc = 0; |
| 57 | + |
| 58 | + for (auto &track : *tracks) { |
| 59 | + auto pdg = track.GetPdgCode(); |
| 60 | + if (std::abs(pdg) == checkPdgQuarkOne || std::abs(pdg) == checkPdgQuarkTwo) { |
| 61 | + nQuarks++; |
| 62 | + continue; |
| 63 | + } // pdgquark |
| 64 | + auto y = track.GetRapidity(); |
| 65 | + if (std::abs(pdg) == checkPdgDecayMuon) { |
| 66 | + int igmother = track.getMotherTrackId(); |
| 67 | + auto gmTrack = (*tracks)[igmother]; |
| 68 | + int gmpdg = gmTrack.GetPdgCode(); |
| 69 | + if (int(std::abs(gmpdg) / 100.) == 4 || |
| 70 | + int(std::abs(gmpdg) / 1000.) == 4) { |
| 71 | + nMuons++; |
| 72 | + nmuonsev++; |
| 73 | + if (-4.3 < y && y < -2.2) { |
| 74 | + nMuonsInAcceptance++; |
| 75 | + nmuonsevinacc++; |
| 76 | + } |
| 77 | + } // gmpdg |
| 78 | + |
| 79 | + } // pdgdecay |
| 80 | + |
| 81 | + } // loop track |
| 82 | + // std::cout << "#muons per event: " << nmuonsev << "\n"; |
| 83 | + // std::cout << "#muons in acceptance per event: " << nmuonsev << "\n"; |
| 84 | + } // events |
| 85 | + |
| 86 | + std::cout << "#events: " << nEvents << "\n"; |
| 87 | + std::cout << "# MB events: " << nEventsMB << "\n"; |
| 88 | + std::cout << Form("# events injected with %d quark pair: ", checkPdgQuarkOne) |
| 89 | + << nEventsInjOne << "\n"; |
| 90 | + std::cout << Form("# events injected with %d quark pair: ", checkPdgQuarkTwo) |
| 91 | + << nEventsInjTwo << "\n"; |
| 92 | + if (nEventsMB < nEvents * (1 - ratioTrigger) * 0.95 || |
| 93 | + nEventsMB > nEvents * (1 - ratioTrigger) * |
| 94 | + 1.05) { // we put some tolerance since the number of |
| 95 | + // generated events is small |
| 96 | + std::cerr << "Number of generated MB events different than expected\n"; |
| 97 | + return 1; |
| 98 | + } |
| 99 | + if ((nEventsInjOne + nEventsInjTwo) < nEvents * ratioTrigger * 0.95 || |
| 100 | + (nEventsInjOne + nEventsInjTwo) > nEvents * ratioTrigger * 1.05) { |
| 101 | + std::cerr << "Number of generated events injected with " << checkPdgQuarkOne << " and " << checkPdgQuarkTwo |
| 102 | + << " different than expected\n"; |
| 103 | + return 1; |
| 104 | + } |
| 105 | + if (std::abs(float(nEventsInjOne) / nEventsInjTwo - ratioQuarkOneTwo) / ratioQuarkOneTwo > 0.1) { |
| 106 | + std::cerr << "Ratio between quark " << checkPdgQuarkOne << " and quark " << checkPdgQuarkTwo |
| 107 | + << " different than expected\n"; |
| 108 | + return 1; |
| 109 | + } |
| 110 | + std::cout << "#muons: " << nMuons << "\n"; |
| 111 | + std::cout << "#muons in acceptance: " << nMuonsInAcceptance << "\n"; |
| 112 | + |
| 113 | + return 0; |
| 114 | +} // external |
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