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cf6522d1 | 1 | //_________________________________________________________________________ |
2 | // Utility Class for transverse energy studies | |
3 | // Base class for ESD analysis | |
4 | // - reconstruction output | |
5 | // implementation file | |
6 | // | |
7 | //*-- Authors: Oystein Djuvsland (Bergen), David Silvermyr (ORNL) | |
8 | //_________________________________________________________________________ | |
2fbf38ac | 9 | |
10 | #include "AliAnalysisEtReconstructed.h" | |
11 | #include "AliAnalysisEtCuts.h" | |
12 | #include "AliESDtrack.h" | |
13 | #include "AliESDCaloCluster.h" | |
14 | #include "TVector3.h" | |
15 | #include "AliVEvent.h" | |
16 | #include "AliESDEvent.h" | |
17 | #include "AliVParticle.h" | |
18 | #include <iostream> | |
19 | #include "TH2F.h" | |
20 | ||
21 | AliAnalysisEtReconstructed::AliAnalysisEtReconstructed() : | |
22 | AliAnalysisEt() | |
2fbf38ac | 23 | ,fTrackDistanceCut(0) |
24 | ,fClusterType(0) | |
25 | { | |
26 | ||
27 | } | |
28 | ||
cf6522d1 | 29 | AliAnalysisEtReconstructed::~AliAnalysisEtReconstructed() |
2fbf38ac | 30 | { |
cf6522d1 | 31 | } |
32 | ||
33 | Int_t AliAnalysisEtReconstructed::AnalyseEvent(AliVEvent* ev) | |
34 | { // analyse ESD event | |
2fbf38ac | 35 | ResetEventValues(); |
36 | AliESDEvent *event = dynamic_cast<AliESDEvent*>(ev); | |
37 | ||
38 | for (Int_t iTrack = 0; iTrack < event->GetNumberOfTracks(); iTrack++) | |
39 | { | |
40 | AliVParticle *track = event->GetTrack(iTrack); | |
41 | if (!track) | |
42 | { | |
43 | Printf("ERROR: Could not get track %d", iTrack); | |
44 | continue; | |
45 | } | |
46 | ||
47 | fMultiplicity++; | |
48 | ||
49 | Int_t nItsClusters = dynamic_cast<AliESDtrack*>(track)->GetNcls(0); | |
50 | Int_t nTPCClusters = dynamic_cast<AliESDtrack*>(track)->GetNcls(1); | |
51 | ||
52 | Float_t massPart = 0; | |
53 | ||
54 | const Double_t *pidWeights = track->PID(); | |
55 | if (pidWeights) | |
56 | { | |
57 | Int_t maxpid = -1; | |
58 | Float_t maxpidweight = 0; | |
59 | for (Int_t p =0; p < AliPID::kSPECIES; p++) | |
60 | { | |
61 | if (pidWeights[p] > maxpidweight) | |
62 | { | |
63 | maxpidweight = pidWeights[p]; | |
64 | maxpid = p; | |
65 | } | |
66 | } | |
67 | if (maxpid == AliPID::kProton) | |
68 | { | |
69 | // massPart = -0.938*track->Charge(); | |
70 | } | |
71 | ||
72 | } | |
73 | ||
74 | Double_t et = track->E() * TMath::Sin(track->Theta()) + massPart; | |
cf6522d1 | 75 | // printf("Rec track: iTrack %03d eta %4.3f phi %4.3f nITSCl %d nTPCCl %d\n", iTrack, track->Eta(), track->Phi(), nItsClusters, nTPCClusters); // tmp/debug printout |
2fbf38ac | 76 | |
4998becf | 77 | if (TMath::Abs(track->Eta()) < fCuts->GetCommonEtaCut() && CheckGoodVertex(track) && nItsClusters > fCuts->GetReconstructedNItsClustersCut() && nTPCClusters > fCuts->GetReconstructedNTpcClustersCut() ) |
2fbf38ac | 78 | { |
79 | fTotChargedEt += et; | |
80 | fChargedMultiplicity++; | |
81 | ||
82 | if (TMath::Abs(track->Eta()) < fEtaCutAcc && track->Phi() < fPhiCutAccMax && track->Phi() > fPhiCutAccMin) | |
83 | { | |
84 | fTotChargedEtAcc += track->E()*TMath::Sin(track->Theta()) + massPart; | |
85 | } | |
86 | } | |
87 | ||
2fbf38ac | 88 | if (TrackHitsCalorimeter(track, event->GetMagneticField())) |
89 | { | |
13b0d3c1 | 90 | Double_t phi = track->Phi(); |
91 | Double_t pt = track->Pt(); | |
cf6522d1 | 92 | // printf("Rec track hit: iTrack %03d phi %4.3f pt %4.3f\n", iTrack, phi, pt); // tmp/debug printout |
13b0d3c1 | 93 | if (track->Charge() > 0) fHistPhivsPtPos->Fill(phi, pt); |
94 | else fHistPhivsPtNeg->Fill(phi, pt); | |
2fbf38ac | 95 | } |
96 | } | |
97 | ||
98 | for (Int_t iCluster = 0; iCluster < event->GetNumberOfCaloClusters(); iCluster++) | |
99 | { | |
100 | AliESDCaloCluster* cluster = event->GetCaloCluster(iCluster); | |
101 | if (!cluster) | |
102 | { | |
103 | Printf("ERROR: Could not get cluster %d", iCluster); | |
104 | continue; | |
105 | } | |
106 | ||
cf6522d1 | 107 | // printf("Rec Cluster: iCluster %03d E %4.3f type %d NCells %d\n", iCluster, cluster->E(), (int)(cluster->GetType()), cluster->GetNCells()); // tmp/debug printout |
2fbf38ac | 108 | if (cluster->GetType() != fClusterType) continue; |
109 | ||
110 | if (cluster->E() < fClusterEnergyCut) continue; | |
111 | Float_t pos[3]; | |
112 | TVector3 cp(pos); | |
113 | cluster->GetPosition(pos); | |
114 | //if (pos[0] < -(32.0*2.2)) continue; //Ensure that modules 0 and 1 are not used | |
115 | // if(cp.Phi() < 260.*TMath::Pi()/180.) continue; | |
116 | fHistTMDeltaR->Fill(cluster->GetEmcCpvDistance()); | |
117 | if (cluster->GetEmcCpvDistance() < fTrackDistanceCut) | |
118 | { | |
119 | continue; | |
120 | //AliVParticle *matchedTrack = event->GetTrack(cluster->GetTrackMatched()); | |
121 | // if(CheckGoodVertex(matchedTrack)) | |
122 | // { | |
123 | // totChargedEnergy += matchedTrack->E();; | |
124 | // totChargedEt += matchedTrack->E()*TMath::Sin(matchedTrack); | |
125 | // } | |
126 | } | |
127 | ||
4998becf | 128 | if (cluster->E() > fSingleCellEnergyCut && cluster->GetNCells() == fCuts->GetCommonSingleCell()) continue; |
2fbf38ac | 129 | |
130 | cluster->GetPosition(pos); | |
131 | ||
132 | // TODO: replace with TVector3, too lazy now... | |
133 | ||
134 | float dist = TMath::Sqrt(pos[0]*pos[0] + pos[1]*pos[1]); | |
135 | ||
136 | float theta = TMath::ATan(pos[2]/dist)+TMath::Pi()/2; | |
137 | // float eta = TMath::Log(TMath::Abs( TMath::Tan( 0.5 * theta ) ) ); | |
138 | fTotNeutralEt += cluster->E() * TMath::Sin(theta); | |
13b0d3c1 | 139 | fNeutralMultiplicity++; |
2fbf38ac | 140 | |
141 | fMultiplicity++; | |
2fbf38ac | 142 | } |
143 | ||
144 | fTotNeutralEtAcc = fTotNeutralEt; | |
13b0d3c1 | 145 | |
2fbf38ac | 146 | fTotEt = fTotChargedEt + fTotNeutralEt; |
147 | fTotEtAcc = fTotChargedEtAcc + fTotNeutralEtAcc; | |
148 | ||
149 | std::cout << fTotChargedEtAcc << std::endl; | |
150 | // Fill the histograms... | |
151 | FillHistograms(); | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | bool AliAnalysisEtReconstructed::CheckGoodVertex(AliVParticle* track) | |
cf6522d1 | 157 | { // check vertex |
2fbf38ac | 158 | |
159 | Float_t bxy = 999.; | |
160 | Float_t bz = 999.; | |
161 | dynamic_cast<AliESDtrack*>(track)->GetImpactParametersTPC(bxy,bz); | |
162 | ||
4998becf | 163 | bool status = (TMath::Abs(track->Xv()) < fCuts->GetReconstructedVertexXCut()) && |
164 | (TMath::Abs(track->Yv()) < fCuts->GetReconstructedVertexYCut()) && | |
165 | (TMath::Abs(track->Zv()) < fCuts->GetReconstructedVertexZCut()) && | |
166 | (TMath::Abs(bxy) < fCuts->GetReconstructedIPxyCut()) && | |
167 | (TMath::Abs(bz) < fCuts->GetReconstructedIPzCut()); | |
2fbf38ac | 168 | |
4998becf | 169 | return status; |
2fbf38ac | 170 | } |
171 | ||
172 | void AliAnalysisEtReconstructed::Init() | |
cf6522d1 | 173 | { // Init |
2fbf38ac | 174 | AliAnalysisEt::Init(); |
2fbf38ac | 175 | } |
176 | ||
177 | bool AliAnalysisEtReconstructed::TrackHitsCalorimeter(AliVParticle* track, Double_t magField) | |
cf6522d1 | 178 | { // propagate track to detector radius |
2fbf38ac | 179 | |
180 | AliESDtrack *esdTrack = dynamic_cast<AliESDtrack*>(track); | |
cf6522d1 | 181 | // Printf("Propagating track: eta: %f, phi: %f, pt: %f", esdTrack->Eta(), esdTrack->Phi(), esdTrack->Pt()); |
2fbf38ac | 182 | |
183 | Bool_t prop = esdTrack->PropagateTo(fDetectorRadius, magField); | |
184 | ||
cf6522d1 | 185 | // if (prop) Printf("Track propagated, eta: %f, phi: %f, pt: %f", esdTrack->Eta(), esdTrack->Phi(), esdTrack->Pt()); |
2fbf38ac | 186 | return prop && |
187 | TMath::Abs(esdTrack->Eta()) < fEtaCutAcc && | |
188 | esdTrack->Phi() > fPhiCutAccMin*TMath::Pi()/180. && | |
189 | esdTrack->Phi() < fPhiCutAccMax*TMath::Pi()/180.; | |
190 | } | |
191 |