| 4d3b366f |
1 | // $Id$ |
| 2 | // |
| 3 | // Class to make PicoTracks from jet 4-vectors |
| 4 | // |
| 5 | // Author: M. Verweij |
| 6 | |
| 7 | #include <TClonesArray.h> |
| 8 | #include <TRandom3.h> |
| 9 | #include "AliAODEvent.h" |
| 10 | #include "AliAODTrack.h" |
| 11 | #include "AliAnalysisManager.h" |
| 12 | #include "AliESDtrack.h" |
| 13 | #include "AliESDtrackCuts.h" |
| 14 | #include "AliLog.h" |
| 15 | #include "AliPicoTrack.h" |
| 16 | #include "AliVTrack.h" |
| 17 | #include "AliEmcalJet.h" |
| 18 | #include "AliEmcalPicoTrackFromJetMaker.h" |
| 19 | |
| 20 | ClassImp(AliEmcalPicoTrackFromJetMaker) |
| 21 | |
| 22 | //________________________________________________________________________ |
| 23 | AliEmcalPicoTrackFromJetMaker::AliEmcalPicoTrackFromJetMaker() : |
| 24 | AliAnalysisTaskSE("AliEmcalPicoTrackFromJetMaker"), |
| 25 | fTracksOutName("PicoTracksFromJets"), |
| 26 | fJetsInName("tracks"), |
| 27 | fJetsIn(0), |
| 28 | fTracksOut(0) |
| 29 | { |
| 30 | // Constructor. |
| 31 | } |
| 32 | |
| 33 | //________________________________________________________________________ |
| 34 | AliEmcalPicoTrackFromJetMaker::AliEmcalPicoTrackFromJetMaker(const char *name) : |
| 35 | AliAnalysisTaskSE(name), |
| 36 | fTracksOutName("PicoTracksFromJets"), |
| 37 | fJetsInName("tracks"), |
| 38 | fJetsIn(0), |
| 39 | fTracksOut(0) |
| 40 | { |
| 41 | // Constructor. |
| 42 | } |
| 43 | |
| 44 | //________________________________________________________________________ |
| 45 | AliEmcalPicoTrackFromJetMaker::~AliEmcalPicoTrackFromJetMaker() |
| 46 | { |
| 47 | // Destructor. |
| 48 | } |
| 49 | |
| 50 | //________________________________________________________________________ |
| 51 | void AliEmcalPicoTrackFromJetMaker::UserCreateOutputObjects() |
| 52 | { |
| 53 | // Create my user objects. |
| 54 | |
| 55 | fTracksOut = new TClonesArray("AliPicoTrack"); |
| 56 | fTracksOut->SetName(fTracksOutName); |
| 57 | } |
| 58 | |
| 59 | //________________________________________________________________________ |
| 60 | void AliEmcalPicoTrackFromJetMaker::UserExec(Option_t *) |
| 61 | { |
| 62 | // Main loop, called for each event. |
| 63 | |
| 64 | AliAnalysisManager *am = AliAnalysisManager::GetAnalysisManager(); |
| 65 | if (!am) { |
| 66 | AliError("Manager zero, returning"); |
| 67 | return; |
| 68 | } |
| 69 | |
| 70 | // retrieve tracks from input. |
| 71 | if (!fJetsIn) { |
| 72 | fJetsIn = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fJetsInName)); |
| 73 | if (!fJetsIn) { |
| 74 | AliError(Form("Could not retrieve jets %s!", fJetsInName.Data())); |
| 75 | return; |
| 76 | } |
| 77 | if (!fJetsIn->GetClass()->GetBaseClass("AliVParticle")) { |
| 78 | AliError(Form("%s: Collection %s does not contain AliVParticle objects!", GetName(), fJetsInName.Data())); |
| 79 | return; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | // add tracks to event if not yet there |
| 84 | fTracksOut->Delete(); |
| 85 | if (!(InputEvent()->FindListObject(fTracksOutName))) { |
| 86 | InputEvent()->AddObject(fTracksOut); |
| 87 | } |
| 88 | |
| 89 | // loop over tracks |
| 90 | const Int_t Njets = fJetsIn->GetEntriesFast(); |
| 91 | for (Int_t iJets = 0, nacc = 0; iJets < Njets; ++iJets) { |
| 92 | |
| 93 | AliEmcalJet *jet = static_cast<AliEmcalJet*>(fJetsIn->At(iJets)); |
| 94 | if (!jet) |
| 95 | continue; |
| 96 | |
| 97 | Bool_t isEmc = kFALSE; |
| 98 | if (TMath::Abs(jet->Eta()) < 0.75 && |
| 99 | jet->Phi() > 70 * TMath::DegToRad() &&jet->Phi() < 190 * TMath::DegToRad()) |
| 100 | isEmc = kTRUE; |
| 101 | |
| 102 | AliPicoTrack *picotrack = new ((*fTracksOut)[nacc]) AliPicoTrack(jet->Pt(), |
| 103 | jet->Eta(), |
| 104 | jet->Phi(), |
| 105 | 1, |
| 106 | 1, |
| 107 | 0, |
| 108 | jet->Eta(), |
| 109 | jet->Phi(), |
| 110 | jet->Pt(), |
| 111 | isEmc, |
| 112 | jet->M()); |
| 113 | picotrack->SetTrackType(0); |
| 114 | ++nacc; |
| 115 | } |
| 116 | } |
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