3 // Emcal jet analysis base task.
7 #include "AliAnalysisTaskEmcalJet.h"
10 #include <TClonesArray.h>
14 #include "AliAnalysisManager.h"
15 #include "AliCentrality.h"
16 #include "AliEMCALGeometry.h"
17 #include "AliESDEvent.h"
18 #include "AliEmcalJet.h"
20 #include "AliRhoParameter.h"
21 #include "AliVCluster.h"
22 #include "AliVEventHandler.h"
23 #include "AliVParticle.h"
25 ClassImp(AliAnalysisTaskEmcalJet)
27 //________________________________________________________________________
28 AliAnalysisTaskEmcalJet::AliAnalysisTaskEmcalJet() :
29 AliAnalysisTaskEmcal("AliAnalysisTaskEmcalJet"),
45 fLeadingHadronType(0),
53 // Default constructor.
56 //________________________________________________________________________
57 AliAnalysisTaskEmcalJet::AliAnalysisTaskEmcalJet(const char *name, Bool_t histo) :
58 AliAnalysisTaskEmcal(name, histo),
74 fLeadingHadronType(0),
82 // Standard constructor.
85 //________________________________________________________________________
86 AliAnalysisTaskEmcalJet::~AliAnalysisTaskEmcalJet()
91 //________________________________________________________________________
92 Bool_t AliAnalysisTaskEmcalJet::AcceptBiasJet(AliEmcalJet *jet) const
94 // Accept jet with a bias.
96 if (fLeadingHadronType == 0) {
97 if (jet->MaxTrackPt() < fPtBiasJetTrack) return kFALSE;
99 else if (fLeadingHadronType == 1) {
100 if (jet->MaxClusterPt() < fPtBiasJetClus) return kFALSE;
103 if (jet->MaxTrackPt() < fPtBiasJetTrack && jet->MaxClusterPt() < fPtBiasJetClus) return kFALSE;
109 //________________________________________________________________________
110 Float_t* AliAnalysisTaskEmcalJet::GenerateFixedBinArray(Int_t n, Float_t min, Float_t max) const
112 Float_t *bins = new Float_t[n+1];
114 Float_t binWidth = (max-min)/n;
116 for (Int_t i = 1; i <= n; i++) {
117 bins[i] = bins[i-1]+binWidth;
123 //________________________________________________________________________
124 Double_t AliAnalysisTaskEmcalJet::GetLeadingHadronPt(AliEmcalJet *jet) const
126 if (fLeadingHadronType == 0) // charged leading hadron
127 return jet->MaxTrackPt();
128 else if (fLeadingHadronType == 1) // neutral leading hadron
129 return jet->MaxClusterPt();
130 else // charged or neutral
131 return jet->MaxPartPt();
134 //________________________________________________________________________
135 Bool_t AliAnalysisTaskEmcalJet::AcceptJet(AliEmcalJet *jet) const
137 // Return true if jet is accepted.
141 if (jet->TestBits(fJetBitMap) != (Int_t)fJetBitMap)
144 if (jet->Pt() < fJetPtCut)
147 if (jet->Area() < fJetAreaCut)
150 if (jet->AreaEmc()<fAreaEmcCut)
153 if (!AcceptBiasJet(jet))
156 if (jet->MaxTrackPt() > fMaxTrackPt || jet->MaxClusterPt() > fMaxClusterPt)
159 Double_t jetPhi = jet->Phi();
160 Double_t jetEta = jet->Eta();
162 if (fJetMinPhi < 0) // if limits are given in (-pi, pi) range
163 jetPhi -= TMath::Pi() * 2;
165 if (fJetTrigger != 0 && !jet->IsTriggerJet(fJetTrigger))
168 return (Bool_t)(jetEta > fJetMinEta && jetEta < fJetMaxEta && jetPhi > fJetMinPhi && jetPhi < fJetMaxPhi);
171 //________________________________________________________________________
172 AliRhoParameter *AliAnalysisTaskEmcalJet::GetRhoFromEvent(const char *name)
174 // Get rho from event.
176 AliRhoParameter *rho = 0;
178 if (!sname.IsNull()) {
179 rho = dynamic_cast<AliRhoParameter*>(InputEvent()->FindListObject(sname));
181 AliWarning(Form("%s: Could not retrieve rho with name %s!", GetName(), name));
188 //________________________________________________________________________
189 void AliAnalysisTaskEmcalJet::ExecOnce()
191 // Init the analysis.
193 AliAnalysisTaskEmcal::ExecOnce();
195 if (fPercAreaCut >= 0) {
196 if (fJetAreaCut >= 0)
197 AliInfo(Form("%s: jet area cut will be calculated as a percentage of the average area, given value will be overwritten", GetName()));
198 fJetAreaCut = fPercAreaCut * fJetRadius * fJetRadius * TMath::Pi();
203 if (fAnaType == kTPC) {
204 SetJetEtaLimits(-0.5, 0.5);
205 SetJetPhiLimits(-10, 10);
207 else if (fAnaType == kEMCAL && fGeom) {
209 SetJetEtaLimits(fGeom->GetArm1EtaMin() + fJetRadius, fGeom->GetArm1EtaMax() - fJetRadius);
211 Int_t runno = InputEvent()->GetRunNumber();
212 if(runno>=177295 && runno<=197470) //small SM masked in 2012 and 2013
213 SetJetPhiLimits(1.4 + fJetRadius, TMath::Pi() - fJetRadius);
215 SetJetPhiLimits(fGeom->GetArm1PhiMin() * TMath::DegToRad() + fJetRadius, fGeom->GetArm1PhiMax() * TMath::DegToRad() - fJetRadius);
219 if (!fRhoName.IsNull() && !fRho) {
220 fRho = dynamic_cast<AliRhoParameter*>(InputEvent()->FindListObject(fRhoName));
222 AliError(Form("%s: Could not retrieve rho %s!", GetName(), fRhoName.Data()));
223 fInitialized = kFALSE;
228 if (!fJetsName.IsNull() && !fJets) {
229 fJets = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fJetsName));
231 AliError(Form("%s: Could not retrieve jets %s!", GetName(), fJetsName.Data()));
232 fInitialized = kFALSE;
235 else if (!fJets->GetClass()->GetBaseClass("AliEmcalJet")) {
236 AliError(Form("%s: Collection %s does not contain AliEmcalJet objects!", GetName(), fJetsName.Data()));
238 fInitialized = kFALSE;
244 //________________________________________________________________________
245 Int_t AliAnalysisTaskEmcalJet::GetSortedArray(Int_t indexes[], TClonesArray *array, Double_t rho) const
247 // Get the leading jets.
249 static Float_t pt[9999] = {0};
254 const Int_t n = array->GetEntriesFast();
261 if (array->GetClass()->GetBaseClass("AliEmcalJet")) {
263 for (Int_t i = 0; i < n; i++) {
267 AliEmcalJet* jet = static_cast<AliEmcalJet*>(array->At(i));
270 AliError(Form("Could not receive jet %d", i));
277 pt[nacc] = jet->Pt() - rho * jet->Area();
282 else if (array->GetClass()->GetBaseClass("AliVTrack")) {
284 for (Int_t i = 0; i < n; i++) {
288 AliVTrack* track = static_cast<AliVTrack*>(array->At(i));
291 AliError(Form("Could not receive track %d", i));
295 if (!AcceptTrack(track))
298 pt[nacc] = track->Pt();
303 else if (array->GetClass()->GetBaseClass("AliVCluster")) {
305 for (Int_t i = 0; i < n; i++) {
309 AliVCluster* cluster = static_cast<AliVCluster*>(array->At(i));
312 AliError(Form("Could not receive cluster %d", i));
316 if (!AcceptCluster(cluster))
319 TLorentzVector nPart;
320 cluster->GetMomentum(nPart, const_cast<Double_t*>(fVertex));
322 pt[nacc] = nPart.Pt();
328 TMath::Sort(nacc, pt, indexes);
333 //________________________________________________________________________
334 Bool_t AliAnalysisTaskEmcalJet::IsJetCluster(AliEmcalJet* jet, Int_t iclus, Bool_t sorted) const
336 // Return true if cluster is in jet.
338 for (Int_t i = 0; i < jet->GetNumberOfClusters(); ++i) {
339 Int_t ijetclus = jet->ClusterAt(i);
340 if (sorted && ijetclus > iclus)
342 if (ijetclus == iclus)
348 //________________________________________________________________________
349 Bool_t AliAnalysisTaskEmcalJet::IsJetTrack(AliEmcalJet* jet, Int_t itrack, Bool_t sorted) const
351 // Return true if track is in jet.
353 for (Int_t i = 0; i < jet->GetNumberOfTracks(); ++i) {
354 Int_t ijettrack = jet->TrackAt(i);
355 if (sorted && ijettrack > itrack)
357 if (ijettrack == itrack)
363 //________________________________________________________________________
364 Bool_t AliAnalysisTaskEmcalJet::RetrieveEventObjects()
366 // Retrieve objects from event.
368 if (!AliAnalysisTaskEmcal::RetrieveEventObjects())
372 fRhoVal = fRho->GetVal();