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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" | |
87efb15c | 18 | #include "TDatabasePDG.h" |
19 | #include "TList.h" | |
2fbf38ac | 20 | #include <iostream> |
21 | #include "TH2F.h" | |
22 | ||
23 | AliAnalysisEtReconstructed::AliAnalysisEtReconstructed() : | |
24 | AliAnalysisEt() | |
87efb15c | 25 | ,fNTpcClustersCut(0) |
26 | ,fNItsClustersCut(0) | |
2fbf38ac | 27 | ,fTrackDistanceCut(0) |
87efb15c | 28 | ,fPidCut(0) |
2fbf38ac | 29 | ,fClusterType(0) |
87efb15c | 30 | ,fHistChargedPionEnergyDeposit(0) |
31 | ,fHistProtonEnergyDeposit(0) | |
32 | ,fHistAntiProtonEnergyDeposit(0) | |
33 | ,fHistChargedKaonEnergyDeposit(0) | |
34 | ,fHistMuonEnergyDeposit(0) | |
2fbf38ac | 35 | { |
36 | ||
37 | } | |
38 | ||
cf6522d1 | 39 | AliAnalysisEtReconstructed::~AliAnalysisEtReconstructed() |
2fbf38ac | 40 | { |
cf6522d1 | 41 | } |
42 | ||
43 | Int_t AliAnalysisEtReconstructed::AnalyseEvent(AliVEvent* ev) | |
44 | { // analyse ESD event | |
2fbf38ac | 45 | ResetEventValues(); |
46 | AliESDEvent *event = dynamic_cast<AliESDEvent*>(ev); | |
47 | ||
87efb15c | 48 | Double_t protonMass = fPdgDB->GetParticle("proton")->Mass(); |
49 | ||
2fbf38ac | 50 | for (Int_t iTrack = 0; iTrack < event->GetNumberOfTracks(); iTrack++) |
51 | { | |
52 | AliVParticle *track = event->GetTrack(iTrack); | |
53 | if (!track) | |
54 | { | |
55 | Printf("ERROR: Could not get track %d", iTrack); | |
56 | continue; | |
57 | } | |
58 | ||
59 | fMultiplicity++; | |
60 | ||
61 | Int_t nItsClusters = dynamic_cast<AliESDtrack*>(track)->GetNcls(0); | |
62 | Int_t nTPCClusters = dynamic_cast<AliESDtrack*>(track)->GetNcls(1); | |
63 | ||
64 | Float_t massPart = 0; | |
65 | ||
66 | const Double_t *pidWeights = track->PID(); | |
87efb15c | 67 | Int_t maxpid = -1; |
68 | Double_t maxpidweight = 0; | |
69 | ||
2fbf38ac | 70 | if (pidWeights) |
71 | { | |
2fbf38ac | 72 | for (Int_t p =0; p < AliPID::kSPECIES; p++) |
73 | { | |
74 | if (pidWeights[p] > maxpidweight) | |
75 | { | |
76 | maxpidweight = pidWeights[p]; | |
77 | maxpid = p; | |
78 | } | |
79 | } | |
80 | if (maxpid == AliPID::kProton) | |
81 | { | |
87efb15c | 82 | //by definition of ET |
83 | massPart = -protonMass*track->Charge(); | |
2fbf38ac | 84 | } |
85 | ||
86 | } | |
87 | ||
88 | Double_t et = track->E() * TMath::Sin(track->Theta()) + massPart; | |
cf6522d1 | 89 | // 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 | 90 | |
4998becf | 91 | if (TMath::Abs(track->Eta()) < fCuts->GetCommonEtaCut() && CheckGoodVertex(track) && nItsClusters > fCuts->GetReconstructedNItsClustersCut() && nTPCClusters > fCuts->GetReconstructedNTpcClustersCut() ) |
2fbf38ac | 92 | { |
93 | fTotChargedEt += et; | |
94 | fChargedMultiplicity++; | |
87efb15c | 95 | if (maxpid != -1) |
96 | { | |
97 | if (maxpid == AliPID::kPion) | |
98 | { | |
99 | fProtonEt += et; | |
100 | } | |
101 | if (maxpid == AliPID::kKaon) | |
102 | { | |
103 | fChargedKaonEt += et; | |
104 | } | |
105 | if (maxpid == AliPID::kMuon) | |
106 | { | |
107 | fMuonEt += et; | |
108 | } | |
109 | if (maxpid == AliPID::kElectron) | |
110 | { | |
111 | fElectronEt += et; | |
112 | } | |
113 | } | |
2fbf38ac | 114 | |
115 | if (TMath::Abs(track->Eta()) < fEtaCutAcc && track->Phi() < fPhiCutAccMax && track->Phi() > fPhiCutAccMin) | |
116 | { | |
117 | fTotChargedEtAcc += track->E()*TMath::Sin(track->Theta()) + massPart; | |
87efb15c | 118 | if (maxpid != -1) |
119 | { | |
120 | if (maxpid == AliPID::kPion) | |
121 | { | |
122 | fProtonEtAcc += et; | |
123 | } | |
124 | if (maxpid == AliPID::kKaon) | |
125 | { | |
126 | fChargedKaonEtAcc += et; | |
127 | } | |
128 | if (maxpid == AliPID::kMuon) | |
129 | { | |
130 | fMuonEtAcc += et; | |
131 | } | |
132 | if (maxpid == AliPID::kElectron) | |
133 | { | |
134 | fElectronEtAcc += et; | |
135 | } | |
136 | } | |
137 | ||
2fbf38ac | 138 | } |
139 | } | |
140 | ||
2fbf38ac | 141 | if (TrackHitsCalorimeter(track, event->GetMagneticField())) |
142 | { | |
13b0d3c1 | 143 | Double_t phi = track->Phi(); |
144 | Double_t pt = track->Pt(); | |
cf6522d1 | 145 | // printf("Rec track hit: iTrack %03d phi %4.3f pt %4.3f\n", iTrack, phi, pt); // tmp/debug printout |
13b0d3c1 | 146 | if (track->Charge() > 0) fHistPhivsPtPos->Fill(phi, pt); |
147 | else fHistPhivsPtNeg->Fill(phi, pt); | |
2fbf38ac | 148 | } |
149 | } | |
150 | ||
151 | for (Int_t iCluster = 0; iCluster < event->GetNumberOfCaloClusters(); iCluster++) | |
152 | { | |
153 | AliESDCaloCluster* cluster = event->GetCaloCluster(iCluster); | |
154 | if (!cluster) | |
155 | { | |
156 | Printf("ERROR: Could not get cluster %d", iCluster); | |
157 | continue; | |
158 | } | |
159 | ||
87efb15c | 160 | if (cluster->GetType() != fClusterType) continue; |
161 | if(cluster->GetTracksMatched() > 0) | |
162 | //printf("Rec Cluster: iCluster %03d E %4.3f type %d NCells %d, nmatched: %d, distance to closest: %f\n", iCluster, cluster->E(), (int)(cluster->GetType()), cluster->GetNCells(), cluster->GetNTracksMatched(), cluster->GetEmcCpvDistance()); // tmp/debug printout | |
163 | ||
164 | ||
2fbf38ac | 165 | if (cluster->E() < fClusterEnergyCut) continue; |
166 | Float_t pos[3]; | |
167 | TVector3 cp(pos); | |
168 | cluster->GetPosition(pos); | |
87efb15c | 169 | |
170 | fHistTMDeltaR->Fill(cluster->GetEmcCpvDistance()); | |
2fbf38ac | 171 | if (cluster->GetEmcCpvDistance() < fTrackDistanceCut) |
172 | { | |
87efb15c | 173 | if (cluster->GetNTracksMatched() == 1) |
174 | { | |
175 | AliVTrack *track = event->GetTrack(cluster->GetTrackMatchedIndex()); | |
176 | const Double_t *pidWeights = track->PID(); | |
177 | ||
178 | Double_t maxpidweight = 0; | |
179 | Int_t maxpid = 0; | |
180 | ||
181 | if (pidWeights) | |
182 | { | |
183 | for (Int_t p =0; p < AliPID::kSPECIES; p++) | |
184 | { | |
185 | if (pidWeights[p] > maxpidweight) | |
186 | { | |
187 | maxpidweight = pidWeights[p]; | |
188 | maxpid = p; | |
189 | } | |
190 | } | |
191 | if(maxpidweight > fPidCut) | |
192 | { | |
193 | if(maxpid == AliPID::kProton) | |
194 | { | |
195 | if(track->Charge() == 1) | |
196 | { | |
197 | fHistProtonEnergyDeposit->Fill(cluster->E(), track->E()); | |
198 | } | |
199 | else if(track->Charge() == -1) | |
200 | { | |
201 | fHistAntiProtonEnergyDeposit->Fill(cluster->E(), track->E()); | |
202 | } | |
203 | } | |
204 | else if(maxpid == AliPID::kPion) | |
205 | { | |
206 | fHistChargedPionEnergyDeposit->Fill(cluster->E(), track->E()); | |
207 | } | |
208 | else if(maxpid == AliPID::kKaon) | |
209 | { | |
210 | fHistChargedKaonEnergyDeposit->Fill(cluster->E(), track->E()); | |
211 | } | |
212 | else if(maxpid == AliPID::kMuon) | |
213 | { | |
214 | fHistMuonEnergyDeposit->Fill(cluster->E(), track->E()); | |
215 | } | |
216 | } | |
217 | } | |
218 | } | |
219 | ||
2fbf38ac | 220 | continue; |
2fbf38ac | 221 | } |
222 | ||
4998becf | 223 | if (cluster->E() > fSingleCellEnergyCut && cluster->GetNCells() == fCuts->GetCommonSingleCell()) continue; |
2fbf38ac | 224 | |
225 | cluster->GetPosition(pos); | |
226 | ||
227 | // TODO: replace with TVector3, too lazy now... | |
228 | ||
229 | float dist = TMath::Sqrt(pos[0]*pos[0] + pos[1]*pos[1]); | |
230 | ||
231 | float theta = TMath::ATan(pos[2]/dist)+TMath::Pi()/2; | |
232 | // float eta = TMath::Log(TMath::Abs( TMath::Tan( 0.5 * theta ) ) ); | |
233 | fTotNeutralEt += cluster->E() * TMath::Sin(theta); | |
13b0d3c1 | 234 | fNeutralMultiplicity++; |
2fbf38ac | 235 | |
236 | fMultiplicity++; | |
2fbf38ac | 237 | } |
238 | ||
239 | fTotNeutralEtAcc = fTotNeutralEt; | |
240 | fTotEt = fTotChargedEt + fTotNeutralEt; | |
241 | fTotEtAcc = fTotChargedEtAcc + fTotNeutralEtAcc; | |
242 | ||
2fbf38ac | 243 | // Fill the histograms... |
244 | FillHistograms(); | |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
249 | bool AliAnalysisEtReconstructed::CheckGoodVertex(AliVParticle* track) | |
cf6522d1 | 250 | { // check vertex |
2fbf38ac | 251 | |
252 | Float_t bxy = 999.; | |
253 | Float_t bz = 999.; | |
254 | dynamic_cast<AliESDtrack*>(track)->GetImpactParametersTPC(bxy,bz); | |
255 | ||
4998becf | 256 | bool status = (TMath::Abs(track->Xv()) < fCuts->GetReconstructedVertexXCut()) && |
257 | (TMath::Abs(track->Yv()) < fCuts->GetReconstructedVertexYCut()) && | |
258 | (TMath::Abs(track->Zv()) < fCuts->GetReconstructedVertexZCut()) && | |
259 | (TMath::Abs(bxy) < fCuts->GetReconstructedIPxyCut()) && | |
260 | (TMath::Abs(bz) < fCuts->GetReconstructedIPzCut()); | |
2fbf38ac | 261 | |
4998becf | 262 | return status; |
2fbf38ac | 263 | } |
264 | ||
265 | void AliAnalysisEtReconstructed::Init() | |
cf6522d1 | 266 | { // Init |
2fbf38ac | 267 | AliAnalysisEt::Init(); |
87efb15c | 268 | fNItsClustersCut = fCuts->GetReconstructedNItsClustersCut(); |
269 | fNTpcClustersCut = fCuts->GetReconstructedNTpcClustersCut(); | |
270 | fPidCut = fCuts->GetCommonPidCut(); | |
2fbf38ac | 271 | } |
272 | ||
273 | bool AliAnalysisEtReconstructed::TrackHitsCalorimeter(AliVParticle* track, Double_t magField) | |
cf6522d1 | 274 | { // propagate track to detector radius |
2fbf38ac | 275 | |
276 | AliESDtrack *esdTrack = dynamic_cast<AliESDtrack*>(track); | |
cf6522d1 | 277 | // Printf("Propagating track: eta: %f, phi: %f, pt: %f", esdTrack->Eta(), esdTrack->Phi(), esdTrack->Pt()); |
2fbf38ac | 278 | |
279 | Bool_t prop = esdTrack->PropagateTo(fDetectorRadius, magField); | |
280 | ||
cf6522d1 | 281 | // if (prop) Printf("Track propagated, eta: %f, phi: %f, pt: %f", esdTrack->Eta(), esdTrack->Phi(), esdTrack->Pt()); |
2fbf38ac | 282 | return prop && |
283 | TMath::Abs(esdTrack->Eta()) < fEtaCutAcc && | |
284 | esdTrack->Phi() > fPhiCutAccMin*TMath::Pi()/180. && | |
285 | esdTrack->Phi() < fPhiCutAccMax*TMath::Pi()/180.; | |
286 | } | |
287 | ||
87efb15c | 288 | void AliAnalysisEtReconstructed::FillOutputList(TList* list) |
289 | { | |
290 | AliAnalysisEt::FillOutputList(list); | |
291 | ||
292 | list->Add(fHistChargedPionEnergyDeposit); | |
293 | list->Add(fHistProtonEnergyDeposit); | |
294 | list->Add(fHistAntiProtonEnergyDeposit); | |
295 | list->Add(fHistChargedKaonEnergyDeposit); | |
296 | list->Add(fHistMuonEnergyDeposit); | |
297 | } | |
298 | ||
299 | void AliAnalysisEtReconstructed::CreateHistograms() | |
300 | { | |
301 | AliAnalysisEt::CreateHistograms(); | |
302 | ||
303 | TString histname; | |
304 | histname = "fHistChargedPionEnergyDeposit" + fHistogramNameSuffix; | |
305 | fHistChargedPionEnergyDeposit = new TH2F(histname.Data(), "Energy deposited by #pi^{+/-}", 1000, 0, 10, 1000, 0, 10); | |
306 | fHistChargedPionEnergyDeposit->SetXTitle("Energy deposited in calorimeter"); | |
307 | fHistChargedPionEnergyDeposit->SetYTitle("Energy of track"); | |
308 | ||
309 | histname = "fHistProtonEnergyDeposit" + fHistogramNameSuffix; | |
310 | fHistProtonEnergyDeposit = new TH2F(histname.Data(), "Energy deposited by protons", 1000, 0, 10, 1000, 0, 10); | |
311 | fHistProtonEnergyDeposit->SetXTitle("Energy deposited in calorimeter"); | |
312 | fHistProtonEnergyDeposit->SetYTitle("Energy of track"); | |
313 | ||
314 | histname = "fHistAntiProtonEnergyDeposit" + fHistogramNameSuffix; | |
315 | fHistAntiProtonEnergyDeposit = new TH2F(histname.Data(), "Energy deposited by anti-protons", 1000, 0, 10, 1000, 0, 10); | |
316 | fHistAntiProtonEnergyDeposit->SetXTitle("Energy deposited in calorimeter"); | |
317 | fHistAntiProtonEnergyDeposit->SetYTitle("Energy of track"); | |
318 | ||
319 | histname = "fHistChargedKaonEnergyDeposit" + fHistogramNameSuffix; | |
320 | fHistChargedKaonEnergyDeposit = new TH2F(histname.Data(), "Energy deposited by K^{+/-}", 1000, 0, 10, 1000, 0, 10); | |
321 | fHistChargedKaonEnergyDeposit->SetXTitle("Energy deposited in calorimeter"); | |
322 | fHistChargedKaonEnergyDeposit->SetYTitle("Energy of track"); | |
323 | ||
324 | histname = "fHistMuonEnergyDeposit" + fHistogramNameSuffix; | |
325 | fHistMuonEnergyDeposit = new TH2F(histname.Data(), "Energy deposited by #mu^{+/-}", 1000, 0, 10, 1000, 0, 10); | |
326 | fHistMuonEnergyDeposit->SetXTitle("Energy deposited in calorimeter"); | |
327 | fHistMuonEnergyDeposit->SetYTitle("Energy of track"); | |
328 | ||
329 | ||
330 | } |