1 //===================================================================
2 // Class AliAnalysisTaskLUT
4 // Extract ESD muon tracks information and store in ntuple.
5 // Used for offline calculation/adjustment of Look-up-Tables for the
8 // Clermont-Ferrand 2008
9 //===================================================================
11 #define AliAnalysisTaskLUT_cxx
13 #include "Riostream.h"
18 #include "AliESDEvent.h"
19 #include "AliESDVertex.h"
20 #include "AliESDMuonTrack.h"
22 #include "AliAnalysisTask.h"
23 #include "AliAnalysisTaskLUT.h"
25 ClassImp(AliAnalysisTaskLUT)
27 //________________________________________________________________________
28 AliAnalysisTaskLUT::AliAnalysisTaskLUT(const char *name) :
29 AliAnalysisTask(name,""),
34 // Input slot #0 works with a TChain
35 DefineInput(0, TChain::Class());
37 // Output slot #0 writes into a TNtuple container
38 DefineOutput(0, TNtuple::Class());
42 //___________________________________________________________________________
43 void AliAnalysisTaskLUT::ConnectInputData(Option_t *)
46 printf(" ConnectInputData of task %s\n", GetName());
48 TTree *tinput = (TTree*)GetInputData(0);
49 fESDEvent = new AliESDEvent();
50 fESDEvent->ReadFromTree(tinput);
54 //___________________________________________________________________________
55 void AliAnalysisTaskLUT::CreateOutputObjects()
57 // Output object (TNtuple)
58 printf(" CreateOutputObjects of task %s\n", GetName());
60 fTracksLUT = new TNtuple("ntTracksLUT","ntTracksLUT","TrigMask:VertZ:NHit:Circ:StripX:StripY:Dev:Lpt:Hpt:Chi2:Chi2trg:Z:P:Pt:Phi:The:TrackZ:PU:PtU:PhiU:TheU:TrackZU");
64 //________________________________________________________________________
65 void AliAnalysisTaskLUT::Exec(Option_t *)
70 Float_t px, py, pz, pt;
74 if (!fESDEvent) return;
76 Int_t nTracks = fESDEvent->GetNumberOfMuonTracks();
78 AliESDVertex* vertex = (AliESDVertex*) fESDEvent->GetVertex();
81 zVertex = vertex->GetZv();
83 ULong64_t mask = fESDEvent->GetTriggerMask();
88 for(Int_t iTracks = 0; iTracks < nTracks; iTracks++) {
90 AliESDMuonTrack* muonTrack = fESDEvent->GetMuonTrack(iTracks);
91 if (muonTrack == 0x0) continue;
93 if (!muonTrack->GetMatchTrigger()) continue;
95 dev = muonTrack->LoDev();
96 dev *= (Int_t)(TMath::Sign(1.0,muonTrack->GetInverseBendingMomentum()));
99 ntvar[ 2] = muonTrack->GetNHit();
100 ntvar[ 3] = muonTrack->LoCircuit();
101 ntvar[ 4] = muonTrack->LoStripX();
102 ntvar[ 5] = muonTrack->LoStripY();
104 ntvar[ 7] = muonTrack->LoLpt();
105 ntvar[ 8] = muonTrack->LoHpt();
106 ntvar[ 9] = muonTrack->GetChi2() / (2.0 * muonTrack->GetNHit() - 5);
107 ntvar[10] = muonTrack->GetChi2MatchTrigger();
108 ntvar[11] = TMath::Sign(1.,muonTrack->GetInverseBendingMomentum());
110 // corrected to vertex
112 px = muonTrack->Px();
113 py = muonTrack->Py();
114 pz = muonTrack->Pz();
115 pt = TMath::Sqrt(px*px+py*py);
116 ntvar[12] = muonTrack->P();
117 ntvar[13] = TMath::Sqrt(px*px+py*py);
118 ntvar[14] = TMath::ATan2(py,px)*180./TMath::Pi();
119 ntvar[15] = TMath::ATan2(pt,pz)*180./TMath::Pi();
120 ntvar[16] = muonTrack->GetZ();
124 px = muonTrack->PxUncorrected();
125 py = muonTrack->PyUncorrected();
126 pz = muonTrack->PzUncorrected();
127 pt = TMath::Sqrt(px*px+py*py);
128 ntvar[17] = muonTrack->PUncorrected();
129 ntvar[18] = TMath::Sqrt(px*px+py*py);
130 ntvar[19] = TMath::ATan2(py,px)*180./TMath::Pi();
131 ntvar[20] = TMath::ATan2(pt,pz)*180./TMath::Pi();
132 ntvar[21] = muonTrack->GetZUncorrected();
134 fTracksLUT->Fill(ntvar);
136 } // end ESD track loop
138 // Post final data. It will be written to a file with option "RECREATE"
139 PostData(0, fTracksLUT);
143 //________________________________________________________________________
144 void AliAnalysisTaskLUT::Terminate(Option_t *) {
145 // End function, empty