1 // Dihadron correlations task - simple task to read ESD or AOD input,
2 // calculate same- and mixed-event correlations, and fill THnSparse
3 // output. -A. Adare, Apr 2011
12 #include "TProfile2D.h"
15 #include "AliAODEvent.h"
16 #include "AliAODInputHandler.h"
17 #include "AliAnalysisManager.h"
18 #include "AliAnalysisTask.h"
19 #include "AliCentrality.h"
20 #include "AliDhcTask.h"
21 #include "AliESDEvent.h"
22 #include "AliESDInputHandler.h"
23 #include "AliESDtrackCuts.h"
24 #include "AliESDMuonTrack.h"
26 #include "AliVParticle.h"
34 //________________________________________________________________________
35 AliDhcTask::AliDhcTask()
36 : AliAnalysisTaskSE(), fVerbosity(0), fEtaMax(1), fZVtxMax(10), fPtMin(0.25), fPtMax(15),
37 fTrackDepth(1000), fPoolSize(200), fTracksName(), fDoWeights(kFALSE), fFillMuons(kFALSE),
38 fPtTACrit(kTRUE), fAllTAHists(kFALSE), fMixInEtaT(kFALSE),
39 fEtaTLo(-1.0), fEtaTHi(1.0), fEtaALo(-1.0), fEtaAHi(1.0),
40 fESD(0x0), fAOD(0x0), fOutputList(0x0), fHEvt(0x0), fHTrk(0x0),
41 fHPtAss(0x0), fHPtTrg(0x0), fHPtTrgEvt(0x0),
42 fHPtTrgNorm1S(0x0), fHPtTrgNorm1M(0x0), fHPtTrgNorm2S(0x0), fHPtTrgNorm2M(0x0),
43 fHCent(0x0), fHZvtx(0x0), fNbins(0), fHSs(0x0), fHMs(0x0), fHPts(0x0),
44 fHQAT(0x0), fHQAA(0x0), fHPtCentT(0x0), fHPtCentA(0x0),
46 fCentrality(99), fZVertex(99), fEsdTPCOnly(0), fPoolMgr(0),
47 fCentMethod("V0M"), fNBdeta(20), fNBdphi(36),
48 fBPtT(0x0), fBPtA(0x0), fBCent(0x0), fBZvtx(0x0),
49 fMixBCent(0x0), fMixBZvtx(0x0),
50 fHEffT(0x0), fHEffA(0x0)
55 //________________________________________________________________________
56 AliDhcTask::AliDhcTask(const char *name)
57 : AliAnalysisTaskSE(name), fVerbosity(0), fEtaMax(1), fZVtxMax(10), fPtMin(0.25), fPtMax(15),
58 fTrackDepth(1000), fPoolSize(200), fTracksName(), fDoWeights(kFALSE), fFillMuons(kFALSE),
59 fPtTACrit(kTRUE), fAllTAHists(kFALSE), fMixInEtaT(kFALSE),
60 fEtaTLo(-1.0), fEtaTHi(1.0), fEtaALo(-1.0), fEtaAHi(1.0),
61 fESD(0x0), fAOD(0x0), fOutputList(0x0), fHEvt(0x0), fHTrk(0x0),
62 fHPtAss(0x0), fHPtTrg(0x0), fHPtTrgEvt(0x0),
63 fHPtTrgNorm1S(0x0), fHPtTrgNorm1M(0x0), fHPtTrgNorm2S(0x0), fHPtTrgNorm2M(0x0),
64 fHCent(0x0), fHZvtx(0x0), fNbins(0), fHSs(0x0), fHMs(0x0), fHPts(0x0),
65 fHQAT(0x0), fHQAA(0x0), fHPtCentT(0x0), fHPtCentA(0x0),
67 fCentrality(99), fZVertex(99), fEsdTPCOnly(0), fPoolMgr(0),
68 fCentMethod("V0M"), fNBdeta(20), fNBdphi(36),
69 fBPtT(0x0), fBPtA(0x0), fBCent(0x0), fBZvtx(0x0),
70 fMixBCent(0x0), fMixBZvtx(0x0),
71 fHEffT(0x0), fHEffA(0x0)
75 // Define input and output slots here
76 // Input slot #0 works with a TChain
77 DefineInput(0, TChain::Class());
78 // Output slot #0 id reserved by the base class for AOD
79 // Output slot #1 writes into a TH1 container
80 DefineOutput(1, TList::Class());
82 fBranchNames="ESD:AliESDRun.,AliESDHeader.,PrimaryVertex.,SPDVertex.,TPCVertex.,Tracks "
83 "AOD:header,tracks,vertices,";
85 Double_t ptt[4] = {0.25, 1.0, 2.0, 15.0};
86 fBPtT = new TAxis(3,ptt);
87 Double_t pta[4] = {0.25, 1.0, 2.0, 15.0};
88 fBPtA = new TAxis(3,pta);
89 Double_t cent[2] = {-100.0, 100.0};
90 fBCent = new TAxis(1,cent);
91 Double_t zvtx[2] = {-10, 10};
92 fBZvtx = new TAxis(1,zvtx);
93 Double_t centmix[2] = {-100.0, 100.0};
94 fMixBCent = new TAxis(1,centmix);
95 Double_t zvtxmix[9] = {-10,-6,-4,-2,0,2,4,6,10};
96 fMixBZvtx = new TAxis(8,zvtxmix);
99 //________________________________________________________________________
100 void AliDhcTask::UserCreateOutputObjects()
103 // Called once (per slave on PROOF!)
106 fOutputList = new TList();
107 fOutputList->SetOwner(1);
109 fEsdTPCOnly = AliESDtrackCuts::GetStandardTPCOnlyTrackCuts();
110 //fEsdTPCOnly->SetMinNClustersTPC(70);
111 fEsdTPCOnly->SetMinNCrossedRowsTPC(70);
112 fEsdTPCOnly->SetMinRatioCrossedRowsOverFindableClustersTPC(0.8);
116 PostData(1, fOutputList);
119 //________________________________________________________________________
120 void AliDhcTask::PrintDhcSettings()
122 AliInfo(Form("Dhc Task %s settings",fName.Data()));
123 AliInfo(Form(" centrality estimator %s", fCentMethod.Data()));
124 AliInfo(Form(" using tracks named %s", fTracksName.Data()));
125 AliInfo(Form(" efficiency correct triggers? %d", fHEffT!=0));
126 AliInfo(Form(" efficiency correct associates? %d", fHEffA!=0));
127 AliInfo(Form(" fill muons? %d", fFillMuons));
128 AliInfo(Form(" use pTT > pTA criterion? %d", fPtTACrit));
129 AliInfo(Form(" create all pTT, pTA hists? %d", fAllTAHists));
130 AliInfo(Form(" Mix in eta_T bins instead of z_vertex? %d", fMixInEtaT));
131 AliInfo(Form(" trigger eta range %f .. %f", fEtaTLo, fEtaTHi));
132 AliInfo(Form(" associate eta range %f .. %f", fEtaALo, fEtaAHi));
136 //________________________________________________________________________
137 void AliDhcTask::BookHistos()
141 if (fVerbosity > 1) {
142 AliInfo(Form("Number of pt(t) bins: %d", fBPtT->GetNbins()));
143 for (Int_t i=1; i<=fBPtT->GetNbins(); i++) {
144 AliInfo(Form("pt(t) bin %d, %f to %f", i, fBPtT->GetBinLowEdge(i), fBPtT->GetBinUpEdge(i)));
146 AliInfo(Form("Number of pt(a) bins: %d", fBPtA->GetNbins()));
147 for (Int_t i=1; i<=fBPtA->GetNbins(); i++) {
148 AliInfo(Form("pt(a) bin %d, %f to %f", i, fBPtA->GetBinLowEdge(i), fBPtA->GetBinUpEdge(i)));
152 Int_t nPtAssc=fBPtA->GetNbins();
153 Int_t nPtTrig=fBPtT->GetNbins();
154 Int_t nCent=fBCent->GetNbins();
155 Int_t nZvtx=fBZvtx->GetNbins();
156 Double_t ptt[nPtTrig+1];
157 ptt[0] = fBPtT->GetBinLowEdge(1);
158 for (Int_t i=1; i<=nPtTrig; i++) {
159 ptt[i] = fBPtT->GetBinUpEdge(i);
161 Double_t pta[nPtAssc+1];
162 pta[0] = fBPtA->GetBinLowEdge(1);
163 for (Int_t i=1; i<=nPtAssc; i++) {
164 pta[i] = fBPtA->GetBinUpEdge(i);
166 Double_t cent[nCent+1];
167 cent[0] = fBCent->GetBinLowEdge(1);
168 for (Int_t i=1; i<=nCent; i++) {
169 cent[i] = fBCent->GetBinUpEdge(i);
171 Double_t zvtx[nZvtx+1];
172 zvtx[0] = fBZvtx->GetBinLowEdge(1);
173 for (Int_t i=1; i<=nZvtx; i++) {
174 zvtx[i] = fBZvtx->GetBinUpEdge(i);
177 fHEvt = new TH2F("fHEvt", "Event-level variables; Zvtx; Cent", nZvtx, zvtx, nCent, cent);
178 fOutputList->Add(fHEvt);
179 fHTrk = new TH2F("fHTrk", "Track-level variables",
180 100, 0, TMath::TwoPi(), 100, -fEtaMax, +fEtaMax);
181 fOutputList->Add(fHTrk);
183 fHPtAss = new TH1F("fHPtAss","PtAssoc;P_{T} (GeV/c) [GeV/c]",nPtAssc,pta);
184 fOutputList->Add(fHPtAss);
185 fHPtTrg = new TH1F("fHPtTrg","PtTrig;P_{T} (GeV/c) [GeV/c]",nPtTrig,ptt);
186 fOutputList->Add(fHPtTrg);
187 fHPtTrgEvt = new TH1F("fHPtTrgEvt","PtTrig;P_{T} (GeV/c) [GeV/c]",nPtTrig,ptt);
188 fHPtTrgNorm1S = new TH3F("fHPtTrgNorm1S","PtTrig;P_{T} (GeV/c) [GeV/c];centrality;z_{vtx}",nPtTrig,ptt,nCent,cent,nZvtx,zvtx);
189 fOutputList->Add(fHPtTrgNorm1S);
190 fHPtTrgNorm1M = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm1M");
191 fOutputList->Add(fHPtTrgNorm1M);
192 fHPtTrgNorm2S = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm2S");
193 fOutputList->Add(fHPtTrgNorm2S);
194 fHPtTrgNorm2M = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm2M");
195 fOutputList->Add(fHPtTrgNorm2M);
197 fHCent = new TH1F("fHCent","Cent;bins",nCent,cent);
198 fOutputList->Add(fHCent);
199 fHZvtx = new TH1F("fHZvtx","Zvertex;bins",nZvtx,zvtx);
200 fOutputList->Add(fHZvtx);
202 fHQAT = new TH3F("fHQAT","QA trigger;p_{T} (GeV/c);#eta;#phi",
205 36,0.0,TMath::TwoPi());
206 fOutputList->Add(fHQAT);
208 fHQAA = new TH3F("fHQAA","QA associated;p_{T} (GeV/c);#eta;#phi",
211 36,0.0,TMath::TwoPi());
212 fOutputList->Add(fHQAA);
214 fHPtCentT = new TH2F("fHPtCentT",Form("trigger particles;p_{T} (GeV/c);centrality (%s)",fCentMethod.Data()),
216 100,cent[0],cent[nCent]);
217 fOutputList->Add(fHPtCentT);
218 fHPtCentA = new TH2F("fHPtCentA",Form("associated particles;p_{T} (GeV/c);centrality (%s)",fCentMethod.Data()),
220 100,cent[0],cent[nCent]);
221 fOutputList->Add(fHPtCentA);
223 fNbins = nPtTrig*nPtAssc*nCent*nZvtx;
224 fHSs = new TH2*[fNbins];
225 fHMs = new TH2*[fNbins];
226 fHPts = new TH1*[fNbins];
228 fIndex = new TFormula("GlobIndex","(t-1)*[0]*[1]*[2]+(z-1)*[0]*[1]+(x-1)*[0]+(y-1)+0*[4]");
229 fIndex->SetParameters(nPtTrig,nPtAssc,nZvtx,nCent);
230 fIndex->SetParNames("NTrigBins","NAssocBins", "NZvertexBins", "NCentBins");
231 fOutputList->Add(fIndex);
234 for (Int_t c=1; c<=nCent; ++c) {
235 for (Int_t z=1; z<=nZvtx; ++z) {
236 for (Int_t t=1; t<=nPtTrig; ++t) {
237 for (Int_t a=1; a<=nPtAssc; ++a) {
241 if ((a>t)&&!fAllTAHists) {
246 TString title(Form("cen=%d (%.1f to %.1f), zVtx=%d (%.1f to %.1f)",
247 c, fBCent->GetBinLowEdge(c), fBCent->GetBinUpEdge(c),
248 z, fBZvtx->GetBinLowEdge(z), fBZvtx->GetBinUpEdge(z)));
249 fHPts[count] = new TH1F(Form("hPt%d",count), Form("Ptdist %s;p_{T} (GeV/c)",title.Data()), 200,0,20);
250 fOutputList->Add(fHPts[count]);
252 TString title(Form("cen=%d (%.1f to %.1f), zVtx=%d (%.1f to %.1f), trig=%d (%.1f to %.1f), assoc=%d (%.1f to %.1f)",
253 c, fBCent->GetBinLowEdge(c), fBCent->GetBinUpEdge(c),
254 z, fBZvtx->GetBinLowEdge(z), fBZvtx->GetBinUpEdge(z),
255 t, fBPtT->GetBinLowEdge(t), fBPtT->GetBinUpEdge(t),
256 a, fBPtA->GetBinLowEdge(a), fBPtA->GetBinUpEdge(a)));
257 fHSs[count] = new TH2F(Form("hS%d",count), Form("Signal %s;#Delta #varphi;#Delta #eta",title.Data()),
258 fNBdphi,-0.5*TMath::Pi(),1.5*TMath::Pi(),fNBdeta,-2*fEtaMax,2*fEtaMax);
259 fHMs[count] = new TH2F(Form("hM%d",count), Form("Mixed %s;#Delta #varphi;#Delta #eta",title.Data()),
260 fNBdphi,-0.5*TMath::Pi(),1.5*TMath::Pi(),fNBdeta,-2*fEtaMax,2*fEtaMax);
261 fOutputList->Add(fHSs[count]);
262 fOutputList->Add(fHMs[count]);
263 Int_t tcount = (Int_t)fIndex->Eval(t,a,z,c);
265 cout << count << " " << tcount << ": " << title << endl;
267 AliFatal(Form("Index mismatch: %d %d", count, tcount));
275 //________________________________________________________________________
276 void AliDhcTask::SetAnaMode(Int_t iAna)
279 SetFillMuons(kFALSE);
284 } else if (iAna==kMuH) {
290 } else if (iAna==kHMu) {
296 } else if (iAna==kMuMu) {
302 } else if (iAna==kPSide) {
303 SetFillMuons(kFALSE);
308 } else if (iAna==kASide) {
309 SetFillMuons(kFALSE);
315 AliInfo(Form("Unrecognized analysis option: %d", iAna));
319 //________________________________________________________________________
320 void AliDhcTask::InitEventMixer()
322 // The effective pool size in events is set by trackDepth, so more
323 // low-mult events are required to maintain the threshold than
324 // high-mult events. Centrality pools are indep. of data histogram
325 // binning, no need to match.
328 Int_t nCentBins=fMixBCent->GetNbins();
329 Double_t centBins[nCentBins+1];
330 centBins[0] = fMixBCent->GetBinLowEdge(1);
331 for (Int_t i=1; i<=nCentBins; i++) {
332 centBins[i] = fMixBCent->GetBinUpEdge(i);
336 Int_t nZvtxBins=fMixBZvtx->GetNbins();
337 Double_t zvtxbin[nZvtxBins+1];
338 zvtxbin[0] = fMixBZvtx->GetBinLowEdge(1);
339 for (Int_t i=1; i<=nZvtxBins; i++) {
340 zvtxbin[i] = fMixBZvtx->GetBinUpEdge(i);
343 fPoolMgr = new AliEvtPoolManager();
344 fPoolMgr->SetTargetTrackDepth(fTrackDepth);
346 fPoolMgr->SetDebug(1);
347 fPoolMgr->InitEventPools(fPoolSize, nCentBins, centBins, nZvtxBins, zvtxbin);
350 //________________________________________________________________________
351 void AliDhcTask::UserExec(Option_t *)
353 // Main loop, called for each event.
354 static int iEvent = -1; ++iEvent;
357 if (iEvent % 10 == 0)
358 cout << iEvent << endl;
361 Int_t dType = -1; // Will be set to kESD or kAOD.
362 MiniEvent* sTracks = new MiniEvent(0); // deleted by pool mgr.
366 // Get event pointers, check for signs of life
367 fESD = dynamic_cast<AliESDEvent*>(InputEvent());
368 fAOD = dynamic_cast<AliAODEvent*>(InputEvent());
374 AliError("Neither fESD nor fAOD available");
379 if (fTracksName.Contains("Gen"))
382 // Centrality, vertex, other event variables...
385 TList *list = InputEvent()->GetList();
386 TClonesArray *tcaTracks = 0;
388 tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
390 fCentrality = tcaTracks->GetEntries();
393 if (!VertexOk(fESD)) {
395 AliInfo(Form("Event REJECTED (ESD vertex not OK). z = %.1f", fZVertex));
398 const AliESDVertex* vertex = fESD->GetPrimaryVertex();
399 fZVertex = vertex->GetZ();
400 if(fESD->GetCentrality()) {
402 fESD->GetCentrality()->GetCentralityPercentile(fCentMethod);
406 const AliAODVertex* vertex = fAOD->GetPrimaryVertex();
407 fZVertex = vertex->GetZ();
408 if (!VertexOk(fAOD)) {
410 Info("Exec()", "Event REJECTED (AOD vertex not OK). z = %.1f", fZVertex);
413 const AliCentrality *aodCent = fAOD->GetHeader()->GetCentralityP();
415 fCentrality = aodCent->GetCentralityPercentile(fCentMethod);
420 // Fill Event histogram
421 fHEvt->Fill(fZVertex, fCentrality);
422 if (fCentrality > fBCent->GetXmax() || fCentrality < fBCent->GetXmin()) {
424 AliInfo(Form("Event REJECTED (centrality out of range). fCentrality = %.1f", fCentrality));
428 // Get array of selected tracks
430 GetESDTracks(sTracks);
433 GetAODTracks(sTracks);
436 // Get pool containing tracks from other events like this one
437 AliEvtPool* pool = fPoolMgr->GetEventPool(fCentrality, fZVertex);
439 AliWarning(Form("No pool found. Centrality %f, ZVertex %f",
440 fCentrality, fZVertex));
444 if (!pool->IsReady()) {
445 pool->UpdatePool(sTracks);
449 if (pool->IsFirstReady()) {
450 // recover events missed before the pool is ready
451 Int_t nEvs = pool->GetCurrentNEvents();
453 for (Int_t i=0; i<nEvs; ++i) {
454 MiniEvent* evI = pool->GetEvent(i);
455 for (Int_t j=0; j<nEvs; ++j) {
456 MiniEvent* evJ = pool->GetEvent(j);
458 Correlate(*evI, *evJ, kSameEvt);
460 Correlate(*evI, *evJ, kDiffEvt);
465 } else { /* standard case: same event, then mix*/
466 Correlate(*sTracks, *sTracks, kSameEvt);
467 Int_t nMix = pool->GetCurrentNEvents();
468 for (Int_t jMix=0; jMix<nMix; ++jMix) {
469 MiniEvent* bgTracks = pool->GetEvent(jMix);
470 Correlate(*sTracks, *bgTracks, kDiffEvt);
474 pool->UpdatePool(sTracks);
475 PostData(1, fOutputList);
478 //________________________________________________________________________
479 void AliDhcTask::GetESDTracks(MiniEvent* miniEvt)
481 // Loop twice: 1. Count sel. tracks. 2. Fill vector.
483 if (fTracksName.IsNull()) {
484 const AliESDVertex *vtxSPD = fESD->GetPrimaryVertexSPD();
488 Int_t nTrax = fESD->GetNumberOfTracks();
490 AliInfo(Form("%d tracks in event",nTrax));
494 TObjArray arr(nTrax);
497 for (Int_t i = 0; i < nTrax; ++i) {
498 AliESDtrack* esdtrack = fESD->GetTrack(i);
500 AliError(Form("Couldn't get ESD track %d\n", i));
503 Bool_t trkOK = fEsdTPCOnly->AcceptTrack(esdtrack);
506 Double_t pt = esdtrack->Pt();
507 Bool_t ptOK = pt >= fPtMin && pt < fPtMax;
510 Double_t eta = esdtrack->Eta();
511 if (TMath::Abs(eta) > fEtaMax)
514 // create a tpc only track
515 AliESDtrack *newtrack = AliESDtrackCuts::GetTPCOnlyTrack(fESD,esdtrack->GetID());
518 if (newtrack->Pt()<=0) {
523 AliExternalTrackParam exParam;
524 Bool_t relate = newtrack->RelateToVertexTPC(vtxSPD,fESD->GetMagneticField(),kVeryBig,&exParam);
530 // set the constraint parameters to the track
531 newtrack->Set(exParam.GetX(),exParam.GetAlpha(),exParam.GetParameter(),exParam.GetCovariance());
534 ptOK = pt >= fPtMin && pt < fPtMax;
539 eta = esdtrack->Eta();
540 if (TMath::Abs(eta) > fEtaMax) {
548 for(Int_t itrack = 0; itrack < nSelTrax; itrack++) {
549 AliVTrack *esdtrack = static_cast<AliESDtrack*>(arr.At(itrack));
551 AliError(Form("ERROR: Could not retrieve esdtrack %d",itrack));
554 Double_t pt = esdtrack->Pt();
555 Double_t eta = esdtrack->Eta();
556 Double_t phi = esdtrack->Phi();
557 Int_t sign = esdtrack->Charge() > 0 ? 1 : -1;
558 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
561 TList *list = InputEvent()->GetList();
562 TClonesArray *tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
565 AliError("Ptr to tcaTracks zero");
569 const Int_t ntracks = tcaTracks->GetEntries();
571 miniEvt->reserve(ntracks);
573 AliError("Ptr to miniEvt zero");
577 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
578 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
580 AliError(Form("ERROR: Could not retrieve track %d",itrack));
583 Double_t pt = vtrack->Pt();
584 Double_t eta = vtrack->Eta();
585 Double_t phi = vtrack->Phi();
586 Int_t sign = vtrack->Charge() > 0 ? 1 : -1;
587 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
593 Int_t nGoodMuons = 0;
594 for (Int_t iMu = 0; iMu<fESD->GetNumberOfMuonTracks(); iMu++) {
595 AliESDMuonTrack* muonTrack = fESD->GetMuonTrack(iMu);
597 if (IsGoodMUONtrack(*muonTrack)) nGoodMuons++;
600 miniEvt->reserve(miniEvt->size()+nGoodMuons);
601 // fill them into the mini event
602 for (Int_t iMu = 0; iMu<fESD->GetNumberOfMuonTracks(); iMu++) {
603 AliESDMuonTrack* muonTrack = fESD->GetMuonTrack(iMu);
605 if (!IsGoodMUONtrack(*muonTrack))
607 Double_t ptMu = muonTrack->Pt();
608 Double_t etaMu = muonTrack->Eta();
609 Double_t phiMu = muonTrack->Phi();
610 Int_t signMu = muonTrack->Charge() > 0 ? 1 : -1;
611 miniEvt->push_back(AliMiniTrack(ptMu, etaMu, phiMu, signMu));
617 //________________________________________________________________________
618 void AliDhcTask::GetAODTracks(MiniEvent* miniEvt)
620 // Loop twice: 1. Count sel. tracks. 2. Fill vector.
622 if (fTracksName.IsNull()) {
623 Int_t nTrax = fAOD->GetNumberOfTracks();
627 AliInfo(Form("%d tracks in event",nTrax));
630 for (Int_t i = 0; i < nTrax; ++i) {
631 AliAODTrack* aodtrack = fAOD->GetTrack(i);
633 AliError(Form("Couldn't get AOD track %d\n", i));
636 // See $ALICE_ROOT/ANALYSIS/macros/AddTaskESDFilter.C
637 UInt_t tpcOnly = 1 << 7;
638 Bool_t trkOK = aodtrack->TestFilterBit(tpcOnly);
641 Double_t pt = aodtrack->Pt();
642 Bool_t ptOK = pt >= fPtMin && pt < fPtMax;
645 Double_t eta = aodtrack->Eta();
646 if (TMath::Abs(eta) > fEtaMax)
652 miniEvt->reserve(nSelTrax);
654 AliError("!miniEvt");
659 for (Int_t i = 0; i < nTrax; ++i) {
660 AliAODTrack* aodtrack = fAOD->GetTrack(i);
662 AliError(Form("Couldn't get AOD track %d\n", i));
666 // See $ALICE_ROOT/ANALYSIS/macros/AddTaskESDFilter.C
667 UInt_t tpcOnly = 1 << 7;
668 Bool_t trkOK = aodtrack->TestFilterBit(tpcOnly);
671 Double_t pt = aodtrack->Pt();
672 Bool_t ptOK = pt >= fPtMin && pt < fPtMax;
675 Double_t eta = aodtrack->Eta();
676 if (TMath::Abs(eta) > fEtaMax)
679 Double_t phi = aodtrack->Phi();
680 Int_t sign = aodtrack->Charge() > 0 ? 1 : -1;
681 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
684 TList *list = InputEvent()->GetList();
685 TClonesArray *tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
688 AliError("Ptr to tcaTracks zero");
692 const Int_t ntracks = tcaTracks->GetEntries();
694 miniEvt->reserve(ntracks);
696 AliError("Ptr to miniEvt zero");
700 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
701 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
703 AliError(Form("ERROR: Could not retrieve vtrack %d",itrack));
706 Double_t pt = vtrack->Pt();
707 Double_t eta = vtrack->Eta();
708 Double_t phi = vtrack->Phi();
709 Int_t sign = vtrack->Charge() > 0 ? 1 : -1;
710 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
716 Int_t nGoodMuons = 0;
717 for (Int_t iMu = 0; iMu<fAOD->GetNumberOfTracks(); iMu++) {
718 AliAODTrack* muonTrack = fAOD->GetTrack(iMu);
720 if (IsGoodMUONtrack(*muonTrack))
724 miniEvt->reserve(miniEvt->size()+nGoodMuons);
725 // fill them into the mini event
726 for (Int_t iMu = 0; iMu<fAOD->GetNumberOfTracks(); iMu++) {
727 AliAODTrack* muonTrack = fAOD->GetTrack(iMu);
729 if (!IsGoodMUONtrack(*muonTrack))
731 Double_t ptMu = muonTrack->Pt();
732 Double_t etaMu = muonTrack->Eta();
733 Double_t phiMu = muonTrack->Phi();
734 Int_t signMu = muonTrack->Charge() > 0 ? 1 : -1;
735 miniEvt->push_back(AliMiniTrack(ptMu, etaMu, phiMu, signMu));
741 //________________________________________________________________________
742 Double_t AliDhcTask::DeltaPhi(Double_t phia, Double_t phib,
743 Double_t rangeMin, Double_t rangeMax) const
745 Double_t dphi = -999;
746 Double_t pi = TMath::Pi();
748 if (phia < 0) phia += 2*pi;
749 else if (phia > 2*pi) phia -= 2*pi;
750 if (phib < 0) phib += 2*pi;
751 else if (phib > 2*pi) phib -= 2*pi;
753 if (dphi < rangeMin) dphi += 2*pi;
754 else if (dphi > rangeMax) dphi -= 2*pi;
759 //________________________________________________________________________
760 Int_t AliDhcTask::Correlate(const MiniEvent &evt1, const MiniEvent &evt2, Int_t pairing)
762 // Triggered angular correlations. If pairing is kSameEvt, particles
763 // within evt1 are correlated. If kDiffEvt, correlate triggers from
764 // evt1 with partners from evt2.
766 Int_t cbin = fHCent->FindBin(fCentrality);
767 if (fHCent->IsBinOverflow(cbin) ||
768 fHCent->IsBinUnderflow(cbin))
771 Int_t zbin = fHZvtx->FindBin(fZVertex);
772 if (fHZvtx->IsBinOverflow(zbin) ||
773 fHZvtx->IsBinUnderflow(zbin))
776 Int_t iMax = evt1.size();
777 Int_t jMax = evt2.size();
780 if (pairing == kSameEvt) {
782 fHCent->Fill(fCentrality);
783 fHZvtx->Fill(fZVertex);
786 Int_t nZvtx = fHZvtx->GetNbinsX();
787 Int_t nPtTrig = fHPtTrg->GetNbinsX();
788 Int_t nPtAssc = fHPtAss->GetNbinsX();
790 Int_t globIndex = (cbin-1)*nZvtx*nPtTrig*nPtAssc+(zbin-1)*nPtTrig*nPtAssc;
792 Int_t ptindex = (Int_t)fIndex->Eval(1,1,zbin,cbin);
795 for (Int_t i=0; i<iMax; ++i) {
796 const AliMiniTrack &a(evt1.at(i));
797 Float_t pta = a.Pt();
798 fHPtTrgEvt->Fill(pta);
799 if (pairing == kSameEvt) {
800 fHPts[ptindex]->Fill(pta);
804 Bool_t bCountTrg; // only count the trigger if an associated particle is found
806 for (Int_t i=0; i<iMax; ++i) {
808 const AliMiniTrack &a(evt1.at(i));
810 Float_t pta = a.Pt();
811 Float_t etaa = a.Eta();
812 Float_t phia = a.Phi();
814 // brief intermezzo in the trigger particle loop: do associated particle QA here in order to avoid double counting
815 if (pairing == kSameEvt) {
816 if (etaa>fEtaALo && etaa<fEtaAHi) {
817 Int_t bbin = fHPtAss->FindBin(pta);
818 if (!(fHPtAss->IsBinOverflow(bbin) || fHPtAss->IsBinUnderflow(bbin))) {
819 fHQAA->Fill(pta,etaa,phia); // fill every associated particle once
820 fHPtCentA->Fill(pta,fCentrality);
826 Int_t abin = fHPtTrg->FindBin(pta);
827 if (fHPtTrg->IsBinOverflow(abin) || fHPtTrg->IsBinUnderflow(abin))
830 if (etaa<fEtaTLo || etaa>fEtaTHi)
833 // efficiency weighting
834 Double_t effWtT = 1.0;
837 const Int_t nEffDimT = fHEffT->GetNdimensions();
838 Int_t effBinT[nEffDimT];
839 effBinT[0] = fHEffT->GetAxis(0)->FindBin(etaa);
840 effBinT[1] = fHEffT->GetAxis(1)->FindBin(pta);
841 effBinT[2] = fHEffT->GetAxis(2)->FindBin(fCentrality);
842 effBinT[3] = fHEffT->GetAxis(3)->FindBin(fZVertex);
844 effBinT[4] = fHEffT->GetAxis(4)->FindBin(phia);
846 effWtT = fHEffT->GetBinContent(effBinT);
849 if (pairing == kSameEvt) {
850 fHTrk->Fill(phia,etaa);
851 fHQAT->Fill(pta,etaa,phia);
852 fHPtCentT->Fill(pta,fCentrality);
854 fHPtTrgNorm1S->Fill(pta,fCentrality,fZVertex,effWtT);
856 fHPtTrgNorm1M->Fill(pta,fCentrality,fZVertex,effWtT);
860 for (Int_t j=0; j<jMax; ++j) {
861 // Associated particles
862 if (pairing == kSameEvt && i==j)
865 const AliMiniTrack &b(evt2.at(j));
867 Float_t ptb = b.Pt();
868 Float_t etab = b.Eta();
869 Float_t phib = b.Phi();
870 if (fPtTACrit&&(pta < ptb)) {
874 Int_t bbin = fHPtAss->FindBin(ptb);
875 if (fHPtAss->IsBinOverflow(bbin) || fHPtAss->IsBinUnderflow(bbin))
878 if (etab<fEtaALo || etab>fEtaAHi)
881 Float_t dphi = DeltaPhi(phia, phib);
882 Float_t deta = etaa - etab;
884 Int_t index = globIndex+(abin-1)*nPtAssc+(bbin-1);
885 Double_t weight = 1.0;
886 // number of trigger weight event-by-event (CMS method)
888 Double_t nTrgs = fHPtTrgEvt->GetBinContent(abin);
890 AliError(Form("Trying to work with number of triggers weight = %f",nTrgs));
896 // efficiency weighting
902 // associated particle
903 const Int_t nEffDimA = fHEffA->GetNdimensions();
904 Int_t effBinA[nEffDimA];
905 effBinA[0] = fHEffA->GetAxis(0)->FindBin(etab);
906 effBinA[1] = fHEffA->GetAxis(1)->FindBin(ptb);
907 effBinA[2] = fHEffA->GetAxis(2)->FindBin(fCentrality);
908 effBinA[3] = fHEffA->GetAxis(3)->FindBin(fZVertex);
910 effBinA[4] = fHEffA->GetAxis(4)->FindBin(phib);
912 weight *= fHEffA->GetBinContent(effBinA);
914 if (hist[index]) { // check if this histogram exists, relevant in the fPtTACrit==kFALSE case
915 hist[index]->Fill(dphi,deta,weight);
917 if (pairing == kSameEvt) {
918 fHPtAss->Fill(ptb); // fill every associated particle every time it is used
923 if (pairing == kSameEvt) {
924 fHPtTrgNorm2S->Fill(pta,fCentrality,fZVertex,effWtT);
926 fHPtTrgNorm2M->Fill(pta,fCentrality,fZVertex,effWtT);
934 //________________________________________________________________________
935 void AliDhcTask::Terminate(Option_t *)
937 // Draw result to the screen
938 // Called once at the end of the query
941 //________________________________________________________________________
942 Bool_t AliDhcTask::VertexOk(TObject* obj) const
944 // Modified from AliAnalyseLeadingTrackUE::VertexSelection()
946 Int_t nContributors = 0;
947 Double_t zVertex = 999;
950 if (obj->InheritsFrom("AliESDEvent")) {
951 AliESDEvent* esdevt = (AliESDEvent*) obj;
952 const AliESDVertex* vtx = esdevt->GetPrimaryVertex();
955 nContributors = vtx->GetNContributors();
956 zVertex = vtx->GetZ();
957 name = vtx->GetName();
959 else if (obj->InheritsFrom("AliAODEvent")) {
960 AliAODEvent* aodevt = (AliAODEvent*) obj;
961 if (aodevt->GetNumberOfVertices() < 1)
963 const AliAODVertex* vtx = aodevt->GetPrimaryVertex();
964 nContributors = vtx->GetNContributors();
965 zVertex = vtx->GetZ();
966 name = vtx->GetName();
969 // Reject if TPC-only vertex
970 if (name.CompareTo("TPCVertex")==0)
973 // Check # contributors and range...
974 if( nContributors < 1 || TMath::Abs(zVertex) > fZVtxMax ) {
981 //________________________________________________________________________
982 Bool_t AliDhcTask::IsGoodMUONtrack(AliESDMuonTrack &track)
984 // Applying track cuts for MUON tracks
986 if (!track.ContainTrackerData())
988 if (!track.ContainTriggerData())
990 Double_t thetaTrackAbsEnd = TMath::ATan(track.GetRAtAbsorberEnd()/505.) * TMath::RadToDeg();
991 if ((thetaTrackAbsEnd < 2.) || (thetaTrackAbsEnd > 10.))
993 Double_t eta = track.Eta();
994 if ((eta < -4.) || (eta > -2.5))
996 if (track.GetMatchTrigger() < 0.5)
1001 //________________________________________________________________________
1002 Bool_t AliDhcTask::IsGoodMUONtrack(AliAODTrack &track)
1004 // Applying track cuts for MUON tracks
1006 if (!track.IsMuonTrack())
1008 Double_t dThetaAbs = TMath::ATan(track.GetRAtAbsorberEnd()/505.)* TMath::RadToDeg();
1009 if ((dThetaAbs<2.) || (dThetaAbs>10.))
1011 Double_t dEta = track.Eta();
1012 if ((dEta<-4.) || (dEta>2.5))
1014 if (track.GetMatchTrigger()<0.5)
1019 //________________________________________________________________________
1020 AliDhcTask::~AliDhcTask()