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
13 #include <TProfile2D.h>
16 #include "AliAnalysisUtils.h"
17 #include "AliAODEvent.h"
18 #include "AliAODInputHandler.h"
19 #include "AliAnalysisManager.h"
20 #include "AliAnalysisTask.h"
21 #include "AliCentrality.h"
22 #include "AliDhcTask.h"
23 #include "AliESDEvent.h"
24 #include "AliESDInputHandler.h"
25 #include "AliESDMuonTrack.h"
26 #include "AliESDtrackCuts.h"
28 #include "AliVParticle.h"
35 //________________________________________________________________________
36 AliDhcTask::AliDhcTask()
37 : AliAnalysisTaskSE(), fVerbosity(0), fEtaMax(1), fZVtxMax(10), fPtMin(0.25), fPtMax(15),
38 fTrackDepth(1000), fPoolSize(200), fTracksName(), fDoWeights(kFALSE), fFillMuons(kFALSE),
39 fPtTACrit(kTRUE), fAllTAHists(kFALSE), fMixInEtaT(kFALSE),
40 fEtaTLo(-1.0), fEtaTHi(1.0), fEtaALo(-1.0), fEtaAHi(1.0), fOmitFirstEv(kTRUE),
41 fDoFillSame(kFALSE), fDoMassCut(kFALSE), fClassName(),
42 fCentMethod("V0M"), fNBdeta(20), fNBdphi(36), fTriggerMatch(kTRUE),
43 fBPtT(0x0), fBPtA(0x0), fBCent(0x0), fBZvtx(0x0),
44 fMixBCent(0x0), fMixBZvtx(0x0), fHEffT(0x0), fHEffA(0x0),
45 fESD(0x0), fAOD(0x0), fOutputList(0x0), fHEvt(0x0), fHTrk(0x0),
46 fHPtAss(0x0), fHPtTrg(0x0), fHPtTrgEvt(0x0),
47 fHPtTrgNorm1S(0x0), fHPtTrgNorm1M(0x0), fHPtTrgNorm2S(0x0), fHPtTrgNorm2M(0x0),
48 fHCent(0x0), fHZvtx(0x0), fNbins(0), fHSs(0x0), fHMs(0x0), fHPts(0x0), fHSMass(0x0), fHMMass(0x0),
49 fHQATp(0x0), fHQAAp(0x0), fHQATpCorr(0x0), fHQAApCorr(0x0),
50 fHQATm(0x0), fHQAAm(0x0), fHQATmCorr(0x0), fHQAAmCorr(0x0),
51 fHPtCentT(0x0), fHPtCentA(0x0), fIndex(0x0),
52 fCentrality(99), fZVertex(99), fEsdTPCOnly(0), fPoolMgr(0),
58 //________________________________________________________________________
59 AliDhcTask::AliDhcTask(const char *name, Bool_t def)
60 : AliAnalysisTaskSE(name), fVerbosity(0), fEtaMax(1), fZVtxMax(10), fPtMin(0.25), fPtMax(15),
61 fTrackDepth(1000), fPoolSize(200), fTracksName(), fDoWeights(kFALSE), fFillMuons(kFALSE),
62 fPtTACrit(kTRUE), fAllTAHists(kFALSE), fMixInEtaT(kFALSE),
63 fEtaTLo(-1.0), fEtaTHi(1.0), fEtaALo(-1.0), fEtaAHi(1.0), fOmitFirstEv(kTRUE),
64 fDoFillSame(kFALSE), fDoMassCut(kFALSE), fClassName(),
65 fCentMethod("V0M"), fNBdeta(20), fNBdphi(36), fTriggerMatch(kTRUE),
66 fBPtT(0x0), fBPtA(0x0), fBCent(0x0), fBZvtx(0x0),
67 fMixBCent(0x0), fMixBZvtx(0x0), fHEffT(0x0), fHEffA(0x0),
68 fESD(0x0), fAOD(0x0), fOutputList(0x0), fHEvt(0x0), fHTrk(0x0),
69 fHPtAss(0x0), fHPtTrg(0x0), fHPtTrgEvt(0x0),
70 fHPtTrgNorm1S(0x0), fHPtTrgNorm1M(0x0), fHPtTrgNorm2S(0x0), fHPtTrgNorm2M(0x0),
71 fHCent(0x0), fHZvtx(0x0), fNbins(0), fHSs(0x0), fHMs(0x0), fHPts(0x0), fHSMass(0x0), fHMMass(0x0),
72 fHQATp(0x0), fHQAAp(0x0), fHQATpCorr(0x0), fHQAApCorr(0x0),
73 fHQATm(0x0), fHQAAm(0x0), fHQATmCorr(0x0), fHQAAmCorr(0x0),
74 fHPtCentT(0x0), fHPtCentA(0x0), fIndex(0x0),
75 fCentrality(99), fZVertex(99), fEsdTPCOnly(0), fPoolMgr(0),
80 // Define input and output slots here
81 // Input slot #0 works with a TChain
82 DefineInput(0, TChain::Class());
83 // Output slot #0 id reserved by the base class for AOD
84 // Output slot #1 writes into a TH1 container
85 DefineOutput(1, TList::Class());
87 fBranchNames="ESD:AliESDRun.,AliESDHeader.,PrimaryVertex.,SPDVertex.,TPCVertex.,Tracks "
88 "AOD:header,tracks,vertices,";
91 Double_t ptt[4] = {0.25, 1.0, 2.0, 15.0};
92 fBPtT = new TAxis(3,ptt);
93 Double_t pta[4] = {0.25, 1.0, 2.0, 15.0};
94 fBPtA = new TAxis(3,pta);
95 Double_t cent[2] = {-100.0, 100.0};
96 fBCent = new TAxis(1,cent);
97 Double_t zvtx[2] = {-10, 10};
98 fBZvtx = new TAxis(1,zvtx);
99 Double_t centmix[2] = {-100.0, 100.0};
100 fMixBCent = new TAxis(1,centmix);
101 Double_t zvtxmix[9] = {-10,-6,-4,-2,0,2,4,6,10};
102 fMixBZvtx = new TAxis(8,zvtxmix);
106 //________________________________________________________________________
107 void AliDhcTask::UserCreateOutputObjects()
110 // Called once (per slave on PROOF!)
113 fOutputList = new TList();
114 fOutputList->SetOwner(1);
116 fUtils = new AliAnalysisUtils();
120 PostData(1, fOutputList);
123 //________________________________________________________________________
124 void AliDhcTask::PrintDhcSettings()
126 AliInfo(Form("Dhc Task %s settings",fName.Data()));
127 AliInfo(Form(" centrality estimator %s", fCentMethod.Data()));
128 AliInfo(Form(" using tracks named %s", fTracksName.Data()));
129 AliInfo(Form(" efficiency correct triggers? %d", fHEffT!=0));
131 AliInfo(Form(" %d dimensions (t)", fHEffT->GetNdimensions()));
133 AliInfo(Form(" efficiency correct associates? %d", fHEffA!=0));
135 AliInfo(Form(" %d dimensions (a)", fHEffA->GetNdimensions()));
137 AliInfo(Form(" fill muons? %d", fFillMuons));
138 AliInfo(Form(" use pTT > pTA criterion? %d", fPtTACrit));
139 AliInfo(Form(" create all pTT, pTA hists? %d", fAllTAHists));
140 AliInfo(Form(" Mix in eta_T bins instead of z_vertex? %d", fMixInEtaT));
141 AliInfo(Form(" trigger eta range %f .. %f", fEtaTLo, fEtaTHi));
142 AliInfo(Form(" associate eta range %f .. %f", fEtaALo, fEtaAHi));
143 AliInfo(Form(" fill same event in any case? %d", fDoFillSame));
144 AliInfo(Form(" do invariant mass cut? %d", fDoMassCut));
145 AliInfo(Form(" omit first event? %d\n", fOmitFirstEv));
148 //________________________________________________________________________
149 void AliDhcTask::BookHistos()
153 if (fVerbosity > 1) {
154 AliInfo(Form("Number of pt(t) bins: %d", fBPtT->GetNbins()));
155 for (Int_t i=1; i<=fBPtT->GetNbins(); i++) {
156 AliInfo(Form("pt(t) bin %d, %f to %f", i, fBPtT->GetBinLowEdge(i), fBPtT->GetBinUpEdge(i)));
158 AliInfo(Form("Number of pt(a) bins: %d", fBPtA->GetNbins()));
159 for (Int_t i=1; i<=fBPtA->GetNbins(); i++) {
160 AliInfo(Form("pt(a) bin %d, %f to %f", i, fBPtA->GetBinLowEdge(i), fBPtA->GetBinUpEdge(i)));
164 Int_t nPtAssc=fBPtA->GetNbins();
165 Int_t nPtTrig=fBPtT->GetNbins();
166 Int_t nCent=fBCent->GetNbins();
167 Int_t nZvtx=fBZvtx->GetNbins();
168 Double_t ptt[nPtTrig+1];
169 ptt[0] = fBPtT->GetBinLowEdge(1);
170 for (Int_t i=1; i<=nPtTrig; i++) {
171 ptt[i] = fBPtT->GetBinUpEdge(i);
173 Double_t pta[nPtAssc+1];
174 pta[0] = fBPtA->GetBinLowEdge(1);
175 for (Int_t i=1; i<=nPtAssc; i++) {
176 pta[i] = fBPtA->GetBinUpEdge(i);
178 Double_t cent[nCent+1];
179 cent[0] = fBCent->GetBinLowEdge(1);
180 for (Int_t i=1; i<=nCent; i++) {
181 cent[i] = fBCent->GetBinUpEdge(i);
183 Double_t zvtx[nZvtx+1];
184 zvtx[0] = fBZvtx->GetBinLowEdge(1);
185 for (Int_t i=1; i<=nZvtx; i++) {
186 zvtx[i] = fBZvtx->GetBinUpEdge(i);
189 fHEvt = new TH2F("fHEvt", "Event-level variables; Zvtx; Cent", nZvtx, zvtx, nCent, cent);
190 fOutputList->Add(fHEvt);
191 fHTrk = new TH2F("fHTrk", "Track-level variables",
192 100, 0, TMath::TwoPi(), 100, -fEtaMax, +fEtaMax);
193 fOutputList->Add(fHTrk);
195 fHPtAss = new TH1F("fHPtAss","PtAssoc;P_{T} (GeV/c) [GeV/c]",nPtAssc,pta);
196 fOutputList->Add(fHPtAss);
197 fHPtTrg = new TH1F("fHPtTrg","PtTrig;P_{T} (GeV/c) [GeV/c]",nPtTrig,ptt);
198 fOutputList->Add(fHPtTrg);
199 fHPtTrgEvt = new TH1F("fHPtTrgEvt","PtTrig;P_{T} (GeV/c) [GeV/c]",nPtTrig,ptt);
200 fHPtTrgNorm1S = new TH3F("fHPtTrgNorm1S","PtTrig;P_{T} (GeV/c) [GeV/c];centrality;z_{vtx}",nPtTrig,ptt,nCent,cent,nZvtx,zvtx);
201 fOutputList->Add(fHPtTrgNorm1S);
202 fHPtTrgNorm1M = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm1M");
203 fOutputList->Add(fHPtTrgNorm1M);
204 fHPtTrgNorm2S = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm2S");
205 fOutputList->Add(fHPtTrgNorm2S);
206 fHPtTrgNorm2M = (TH3*) fHPtTrgNorm1S->Clone("fHPtTrgNorm2M");
207 fOutputList->Add(fHPtTrgNorm2M);
209 fHCent = new TH1F("fHCent","Cent;bins",nCent,cent);
210 fOutputList->Add(fHCent);
211 fHZvtx = new TH1F("fHZvtx","Zvertex;bins",nZvtx,zvtx);
212 fOutputList->Add(fHZvtx);
214 fHQATp = new TH3F("fHQATp","QA trigger;p_{T} (GeV/c);#eta;#phi",
217 36,0.0,TMath::TwoPi());
218 fOutputList->Add(fHQATp);
219 fHQAAp = new TH3F("fHQAAp","QA associated;p_{T} (GeV/c);#eta;#phi",
222 36,0.0,TMath::TwoPi());
223 fOutputList->Add(fHQAAp);
224 fHQATpCorr = (TH3 *) fHQATp->Clone("fHQATpCorr");
225 fOutputList->Add(fHQATpCorr);
226 fHQAApCorr = (TH3 *) fHQAAp->Clone("fHQAApCorr");
227 fOutputList->Add(fHQAApCorr);
228 fHQATm = (TH3 *) fHQATp->Clone("fHQATm");
229 fOutputList->Add(fHQATm);
230 fHQAAm = (TH3 *) fHQAAp->Clone("fHQAAm");
231 fOutputList->Add(fHQAAm);
232 fHQATmCorr = (TH3 *) fHQATm->Clone("fHQATmCorr");
233 fOutputList->Add(fHQATmCorr);
234 fHQAAmCorr = (TH3 *) fHQAAm->Clone("fHQAAmCorr");
235 fOutputList->Add(fHQAAmCorr);
237 fHPtCentT = new TH2F("fHPtCentT",Form("trigger particles;p_{T} (GeV/c);centrality (%s)",fCentMethod.Data()),
239 100,cent[0],cent[nCent]);
240 fOutputList->Add(fHPtCentT);
241 fHPtCentA = new TH2F("fHPtCentA",Form("associated particles;p_{T} (GeV/c);centrality (%s)",fCentMethod.Data()),
243 100,cent[0],cent[nCent]);
244 fOutputList->Add(fHPtCentA);
246 fNbins = nPtTrig*nPtAssc*nCent*nZvtx;
247 fHSs = new TH2*[fNbins];
248 fHMs = new TH2*[fNbins];
249 fHPts = new TH1*[fNbins];
250 fHSMass = new TH1*[fNbins];
251 fHMMass = new TH1*[fNbins];
253 fIndex = new TFormula("GlobIndex","(t-1)*[0]*[1]*[2]+(z-1)*[0]*[1]+(x-1)*[0]+(y-1)+0*[4]");
254 fIndex->SetParameters(nPtTrig,nPtAssc,nZvtx,nCent);
255 fIndex->SetParNames("NTrigBins","NAssocBins", "NZvertexBins", "NCentBins");
256 fOutputList->Add(fIndex);
259 for (Int_t c=1; c<=nCent; ++c) {
260 for (Int_t z=1; z<=nZvtx; ++z) {
261 for (Int_t t=1; t<=nPtTrig; ++t) {
262 for (Int_t a=1; a<=nPtAssc; ++a) {
268 if ((a>t)&&!fAllTAHists) {
272 if (z==1 && t==1 && a==1) {
273 TString title(Form("cen=%d (%.1f to %.1f)",
274 c, fBCent->GetBinLowEdge(c), fBCent->GetBinUpEdge(c)));
275 fHSMass[count] = new TH1F(Form("hSMass%d",count), Form("Mass Same Event %s;m (GeV)",title.Data()), 10000, 0,10);
276 fOutputList->Add(fHSMass[count]);
277 fHMMass[count] = new TH1F(Form("hMMass%d",count), Form("Mass Mixed Event %s;m (GeV)",title.Data()), 10000, 0,10);
278 fOutputList->Add(fHMMass[count]);
281 TString title(Form("cen=%d (%.1f to %.1f), zVtx=%d (%.1f to %.1f)",
282 c, fBCent->GetBinLowEdge(c), fBCent->GetBinUpEdge(c),
283 z, fBZvtx->GetBinLowEdge(z), fBZvtx->GetBinUpEdge(z)));
284 fHPts[count] = new TH1F(Form("hPt%d",count), Form("Ptdist %s;p_{T} (GeV/c)",title.Data()), 200,0,20);
285 fOutputList->Add(fHPts[count]);
287 TString title(Form("cen=%d (%.1f to %.1f), zVtx=%d (%.1f to %.1f), trig=%d (%.1f to %.1f), assoc=%d (%.1f to %.1f)",
288 c, fBCent->GetBinLowEdge(c), fBCent->GetBinUpEdge(c),
289 z, fBZvtx->GetBinLowEdge(z), fBZvtx->GetBinUpEdge(z),
290 t, fBPtT->GetBinLowEdge(t), fBPtT->GetBinUpEdge(t),
291 a, fBPtA->GetBinLowEdge(a), fBPtA->GetBinUpEdge(a)));
292 fHSs[count] = new TH2F(Form("hS%d",count), Form("Signal %s;#Delta #varphi;#Delta #eta",title.Data()),
293 fNBdphi,-0.5*TMath::Pi(),1.5*TMath::Pi(),fNBdeta,-2*fEtaMax,2*fEtaMax);
294 fHMs[count] = new TH2F(Form("hM%d",count), Form("Mixed %s;#Delta #varphi;#Delta #eta",title.Data()),
295 fNBdphi,-0.5*TMath::Pi(),1.5*TMath::Pi(),fNBdeta,-2*fEtaMax,2*fEtaMax);
296 fOutputList->Add(fHSs[count]);
297 fOutputList->Add(fHMs[count]);
298 Int_t tcount = (Int_t)fIndex->Eval(t,a,z,c);
300 cout << count << " " << tcount << ": " << title << endl;
302 AliFatal(Form("Index mismatch: %d %d", count, tcount));
310 //________________________________________________________________________
311 void AliDhcTask::SetAnaMode(Int_t iAna)
314 SetFillMuons(kFALSE);
319 } else if (iAna==kMuH) {
325 } else if (iAna==kHMu) {
331 } else if (iAna==kMuMu) {
337 } else if (iAna==kPSide) {
338 SetFillMuons(kFALSE);
343 } else if (iAna==kASide) {
344 SetFillMuons(kFALSE);
350 AliInfo(Form("Unrecognized analysis option: %d", iAna));
354 //________________________________________________________________________
355 void AliDhcTask::InitEventMixer()
357 // The effective pool size in events is set by trackDepth, so more
358 // low-mult events are required to maintain the threshold than
359 // high-mult events. Centrality pools are indep. of data histogram
360 // binning, no need to match.
363 Int_t nCentBins=fMixBCent->GetNbins();
364 Double_t centBins[nCentBins+1];
365 centBins[0] = fMixBCent->GetBinLowEdge(1);
366 for (Int_t i=1; i<=nCentBins; i++) {
367 centBins[i] = fMixBCent->GetBinUpEdge(i);
371 Int_t nZvtxBins=fMixBZvtx->GetNbins();
372 Double_t zvtxbin[nZvtxBins+1];
373 zvtxbin[0] = fMixBZvtx->GetBinLowEdge(1);
374 for (Int_t i=1; i<=nZvtxBins; i++) {
375 zvtxbin[i] = fMixBZvtx->GetBinUpEdge(i);
378 fPoolMgr = new AliEvtPoolManager();
379 fPoolMgr->SetTargetTrackDepth(fTrackDepth);
381 fPoolMgr->SetDebug(1);
382 fPoolMgr->InitEventPools(fPoolSize, nCentBins, centBins, nZvtxBins, zvtxbin);
385 //________________________________________________________________________
386 void AliDhcTask::UserExec(Option_t *)
388 // Main loop, called for each event.
393 if (fUtils->IsFirstEventInChunk(InputEvent()))
397 // Get event pointers, check for signs of life
398 Int_t dType = -1; // Will be set to kESD or kAOD.
399 fESD = dynamic_cast<AliESDEvent*>(InputEvent());
400 fAOD = dynamic_cast<AliAODEvent*>(InputEvent());
406 AliError("Neither fESD nor fAOD available");
410 if (fClassName.Length()>0) {
413 cls = fESD->GetFiredTriggerClasses();
415 cls = fAOD->GetFiredTriggerClasses();
416 if (!cls.Contains(fClassName))
421 if (fTracksName.Contains("Gen"))
424 // Centrality, vertex, other event variables...
427 TList *list = InputEvent()->GetList();
428 TClonesArray *tcaTracks = 0;
430 tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
432 fCentrality = tcaTracks->GetEntries();
435 const AliESDVertex* vertex = fESD->GetPrimaryVertex();
436 fZVertex = vertex->GetZ();
439 AliInfo(Form("Event REJECTED (ESD vertex not OK). z = %.1f", fZVertex));
442 if(fESD->GetCentrality()) {
444 fESD->GetCentrality()->GetCentralityPercentile(fCentMethod);
446 } else if (dType == kAOD) {
447 const AliAODVertex* vertex = fAOD->GetPrimaryVertex();
448 fZVertex = vertex->GetZ();
451 Info("Exec()", "Event REJECTED (AOD vertex not OK). z = %.1f", fZVertex);
454 const AliCentrality *aodCent = fAOD->GetHeader()->GetCentralityP();
456 fCentrality = aodCent->GetCentralityPercentile(fCentMethod);
461 // Fill event histogram
462 fHEvt->Fill(fZVertex, fCentrality);
463 if (fCentrality > fBCent->GetXmax() || fCentrality < fBCent->GetXmin()) {
465 AliInfo(Form("Event REJECTED (centrality out of range). fCentrality = %.1f", fCentrality));
469 // Get pool containing tracks from other events like this one
470 AliEvtPool* pool = fPoolMgr->GetEventPool(fCentrality, fZVertex);
472 AliWarning(Form("No pool found. Centrality %f, ZVertex %f",
473 fCentrality, fZVertex));
477 // Get array of selected tracks
478 MiniEvent* sTracks = new MiniEvent(0); // deleted by pool mgr.
480 GetESDTracks(sTracks);
481 } else if (dType == kAOD) {
482 GetAODTracks(sTracks);
485 if (sTracks->size()==0) {
486 AliWarning(Form("Track array empty"));
491 if (!pool->IsReady()) {
492 pool->UpdatePool(sTracks);
493 if (fDoFillSame) { // fill same event right away if requested
494 Correlate(*sTracks, *sTracks, kSameEvt);
499 if (pool->IsFirstReady()) {
500 // recover events missed before the pool is ready
501 Int_t nEvs = pool->GetCurrentNEvents();
503 for (Int_t i=0; i<nEvs; ++i) {
504 MiniEvent* evI = pool->GetEvent(i);
505 for (Int_t j=0; j<nEvs; ++j) {
506 MiniEvent* evJ = pool->GetEvent(j);
507 if ((i==j) && !fDoFillSame) {
508 Correlate(*evI, *evJ, kSameEvt);
510 Correlate(*evI, *evJ, kDiffEvt);
515 } else { /* standard case: same event, then mix*/
516 Correlate(*sTracks, *sTracks, kSameEvt);
517 Int_t nMix = pool->GetCurrentNEvents();
518 for (Int_t jMix=0; jMix<nMix; ++jMix) {
519 MiniEvent* bgTracks = pool->GetEvent(jMix);
520 Correlate(*sTracks, *bgTracks, kDiffEvt);
524 pool->UpdatePool(sTracks);
525 PostData(1, fOutputList);
528 //________________________________________________________________________
529 void AliDhcTask::GetESDTracks(MiniEvent* miniEvt)
531 // Loop twice: 1. Count sel. tracks. 2. Fill vector.
533 if (fTracksName.IsNull()) {
534 const AliESDVertex *vtxSPD = fESD->GetPrimaryVertexSPD();
538 Int_t nTrax = fESD->GetNumberOfTracks();
540 AliInfo(Form("%d tracks in event",nTrax));
544 TObjArray arr(nTrax);
548 fEsdTPCOnly = AliESDtrackCuts::GetStandardTPCOnlyTrackCuts();
549 //fEsdTPCOnly->SetMinNClustersTPC(70);
550 fEsdTPCOnly->SetMinNCrossedRowsTPC(70);
551 fEsdTPCOnly->SetMinRatioCrossedRowsOverFindableClustersTPC(0.8);
554 for (Int_t i = 0; i < nTrax; ++i) {
555 AliESDtrack* esdtrack = fESD->GetTrack(i);
557 AliError(Form("Couldn't get ESD track %d\n", i));
560 Bool_t trkOK = fEsdTPCOnly->AcceptTrack(esdtrack);
563 Double_t pt = esdtrack->Pt();
564 Bool_t ptOK = pt >= fPtMin && pt < fPtMax;
567 Double_t eta = esdtrack->Eta();
568 if (TMath::Abs(eta) > fEtaMax)
571 // create a tpc only track
572 AliESDtrack *newtrack = AliESDtrackCuts::GetTPCOnlyTrack(fESD,esdtrack->GetID());
575 if (newtrack->Pt()<=0) {
580 AliExternalTrackParam exParam;
581 Bool_t relate = newtrack->RelateToVertexTPC(vtxSPD,fESD->GetMagneticField(),kVeryBig,&exParam);
587 // set the constraint parameters to the track
588 newtrack->Set(exParam.GetX(),exParam.GetAlpha(),exParam.GetParameter(),exParam.GetCovariance());
591 ptOK = pt >= fPtMin && pt < fPtMax;
596 eta = esdtrack->Eta();
597 if (TMath::Abs(eta) > fEtaMax) {
605 for(Int_t itrack = 0; itrack < nSelTrax; itrack++) {
606 AliVTrack *esdtrack = static_cast<AliESDtrack*>(arr.At(itrack));
608 AliError(Form("ERROR: Could not retrieve esdtrack %d",itrack));
611 Double_t pt = esdtrack->Pt();
612 Double_t eta = esdtrack->Eta();
613 Double_t phi = esdtrack->Phi();
614 Int_t sign = esdtrack->Charge() > 0 ? 1 : -1;
615 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
616 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
619 TList *list = InputEvent()->GetList();
620 TClonesArray *tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
623 AliError("Ptr to tcaTracks zero");
627 const Int_t ntracks = tcaTracks->GetEntries();
628 Int_t nGoodTracks = 0;
630 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
631 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
633 AliError(Form("ERROR: Could not retrieve vtrack %d",itrack));
636 Double_t pt = vtrack->Pt();
637 Double_t eta = vtrack->Eta();
638 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
642 miniEvt->reserve(nGoodTracks);
644 AliError("Ptr to miniEvt zero");
647 // fill good tracks into minievent
648 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
649 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
651 AliError(Form("ERROR: Could not retrieve vtrack %d",itrack));
654 Double_t pt = vtrack->Pt();
655 Double_t eta = vtrack->Eta();
656 Double_t phi = vtrack->Phi();
657 Int_t sign = vtrack->Charge() > 0 ? 1 : -1;
658 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
659 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
665 Int_t nGoodMuons = 0;
666 for (Int_t iMu = 0; iMu<fESD->GetNumberOfMuonTracks(); iMu++) {
667 AliESDMuonTrack* muonTrack = fESD->GetMuonTrack(iMu);
669 if (!IsGoodMUONtrack(*muonTrack))
671 Double_t ptMu = muonTrack->Pt();
672 Double_t etaMu = muonTrack->Eta();
673 if ((IsTrigger(etaMu,ptMu)||IsAssociated(etaMu,ptMu)) && (IsGoodMUONtrack(*muonTrack)))
677 miniEvt->reserve(miniEvt->size()+nGoodMuons);
678 // fill them into the mini event
679 for (Int_t iMu = 0; iMu<fESD->GetNumberOfMuonTracks(); iMu++) {
680 AliESDMuonTrack* muonTrack = fESD->GetMuonTrack(iMu);
682 if (!IsGoodMUONtrack(*muonTrack))
684 Double_t ptMu = muonTrack->Pt();
685 Double_t etaMu = muonTrack->Eta();
686 Double_t phiMu = muonTrack->Phi();
687 Int_t signMu = muonTrack->Charge() > 0 ? 1 : -1;
688 if (IsTrigger(etaMu,ptMu)||IsAssociated(etaMu,ptMu))
689 miniEvt->push_back(AliMiniTrack(ptMu, etaMu, phiMu, signMu));
695 //________________________________________________________________________
696 void AliDhcTask::GetAODTracks(MiniEvent* miniEvt)
698 // Loop twice: 1. Count sel. tracks. 2. Fill vector.
700 if (fTracksName.IsNull()) {
701 Int_t nTrax = fAOD->GetNumberOfTracks();
705 AliInfo(Form("%d tracks in event",nTrax));
708 for (Int_t i = 0; i < nTrax; ++i) {
709 AliAODTrack* aodtrack = fAOD->GetTrack(i);
711 AliError(Form("Couldn't get AOD track %d\n", i));
714 // See $ALICE_ROOT/ANALYSIS/macros/AddTaskESDFilter.C
715 UInt_t tpcOnly = 1 << 7;
716 Bool_t trkOK = aodtrack->TestFilterBit(tpcOnly);
719 Double_t pt = aodtrack->Pt();
720 Double_t eta = aodtrack->Eta();
721 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
726 miniEvt->reserve(nSelTrax);
728 AliError("!miniEvt");
733 for (Int_t i = 0; i < nTrax; ++i) {
734 AliAODTrack* aodtrack = fAOD->GetTrack(i);
736 AliError(Form("Couldn't get AOD track %d\n", i));
740 // See $ALICE_ROOT/ANALYSIS/macros/AddTaskESDFilter.C
741 UInt_t tpcOnly = 1 << 7;
742 Bool_t trkOK = aodtrack->TestFilterBit(tpcOnly);
745 Double_t pt = aodtrack->Pt();
746 Double_t eta = aodtrack->Eta();
747 Double_t phi = aodtrack->Phi();
748 Int_t sign = aodtrack->Charge() > 0 ? 1 : -1;
749 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
750 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
753 TList *list = InputEvent()->GetList();
754 TClonesArray *tcaTracks = dynamic_cast<TClonesArray*>(list->FindObject(fTracksName));
757 AliError("Ptr to tcaTracks zero");
761 const Int_t ntracks = tcaTracks->GetEntries();
762 Int_t nGoodTracks = 0;
764 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
765 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
767 AliError(Form("ERROR: Could not retrieve vtrack %d",itrack));
770 Double_t pt = vtrack->Pt();
771 Double_t eta = vtrack->Eta();
772 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
776 miniEvt->reserve(nGoodTracks);
778 AliError("Ptr to miniEvt zero");
781 // fill good tracks into minievent
782 for (Int_t itrack = 0; itrack < ntracks; itrack++) {
783 AliVTrack *vtrack = static_cast<AliVTrack*>(tcaTracks->At(itrack));
785 AliError(Form("ERROR: Could not retrieve vtrack %d",itrack));
788 Double_t pt = vtrack->Pt();
789 Double_t eta = vtrack->Eta();
790 Double_t phi = vtrack->Phi();
791 Int_t sign = vtrack->Charge() > 0 ? 1 : -1;
792 if (IsTrigger(eta,pt)||IsAssociated(eta,pt))
793 miniEvt->push_back(AliMiniTrack(pt, eta, phi, sign));
799 Int_t nGoodMuons = 0;
800 for (Int_t iMu = 0; iMu<fAOD->GetNumberOfTracks(); iMu++) {
801 AliAODTrack* muonTrack = fAOD->GetTrack(iMu);
803 if (!IsGoodMUONtrack(*muonTrack))
805 Double_t ptMu = muonTrack->Pt();
806 Double_t etaMu = muonTrack->Eta();
807 if ((IsTrigger(etaMu,ptMu)||IsAssociated(etaMu,ptMu)) && (IsGoodMUONtrack(*muonTrack)))
811 miniEvt->reserve(miniEvt->size()+nGoodMuons);
812 // fill them into the mini event
813 for (Int_t iMu = 0; iMu<fAOD->GetNumberOfTracks(); iMu++) {
814 AliAODTrack* muonTrack = fAOD->GetTrack(iMu);
816 if (!IsGoodMUONtrack(*muonTrack))
818 Double_t ptMu = muonTrack->Pt();
819 Double_t etaMu = muonTrack->Eta();
820 Double_t phiMu = muonTrack->Phi();
821 Int_t signMu = muonTrack->Charge() > 0 ? 1 : -1;
822 if (IsTrigger(etaMu,ptMu)||IsAssociated(etaMu,ptMu))
823 miniEvt->push_back(AliMiniTrack(ptMu, etaMu, phiMu, signMu));
829 //________________________________________________________________________
830 Double_t AliDhcTask::DeltaPhi(Double_t phia, Double_t phib,
831 Double_t rangeMin, Double_t rangeMax) const
833 Double_t dphi = -999;
834 Double_t pi = TMath::Pi();
836 if (phia < 0) phia += 2*pi;
837 else if (phia > 2*pi) phia -= 2*pi;
838 if (phib < 0) phib += 2*pi;
839 else if (phib > 2*pi) phib -= 2*pi;
841 if (dphi < rangeMin) dphi += 2*pi;
842 else if (dphi > rangeMax) dphi -= 2*pi;
847 //________________________________________________________________________
848 Int_t AliDhcTask::Correlate(const MiniEvent &evt1, const MiniEvent &evt2, Int_t pairing)
850 // Triggered angular correlations. If pairing is kSameEvt, particles
851 // within evt1 are correlated. If kDiffEvt, correlate triggers from
852 // evt1 with partners from evt2.
854 Int_t cbin = fHCent->FindBin(fCentrality);
855 if (fHCent->IsBinOverflow(cbin) ||
856 fHCent->IsBinUnderflow(cbin))
859 Int_t zbin = fHZvtx->FindBin(fZVertex);
860 if (fHZvtx->IsBinOverflow(zbin) ||
861 fHZvtx->IsBinUnderflow(zbin))
864 Int_t iMax = evt1.size();
865 Int_t jMax = evt2.size();
868 if (pairing == kSameEvt) {
870 fHCent->Fill(fCentrality);
871 fHZvtx->Fill(fZVertex);
874 Int_t nZvtx = fHZvtx->GetNbinsX();
875 Int_t nPtTrig = fHPtTrg->GetNbinsX();
876 Int_t nPtAssc = fHPtAss->GetNbinsX();
878 Int_t globIndex = (cbin-1)*nZvtx*nPtTrig*nPtAssc+(zbin-1)*nPtTrig*nPtAssc;
879 Int_t ptindex = (Int_t)fIndex->Eval(1,1,zbin,cbin);
880 Int_t mindex = (Int_t)fIndex->Eval(1,1,1,cbin);
884 for (Int_t i=0; i<iMax; ++i) {
885 const AliMiniTrack &a(evt1.at(i));
886 Float_t pta = a.Pt();
887 fHPtTrgEvt->Fill(pta);
888 if (pairing == kSameEvt) {
889 fHPts[ptindex]->Fill(pta);
893 Bool_t bCountTrg; // only count the trigger if an associated particle is found
895 for (Int_t i=0; i<iMax; ++i) {
897 const AliMiniTrack &a(evt1.at(i));
899 Float_t pta = a.Pt();
900 Float_t etaa = a.Eta();
901 Float_t phia = a.Phi();
902 Int_t sgna = a.Sign();
904 // brief intermezzo in the trigger particle loop: do associated particle QA here in order to avoid double counting
905 if (pairing == kSameEvt) {
906 if (IsAssociated(etaa,pta)) {
907 Double_t aQAWght = 1.0;
909 const Int_t nEffDimA = fHEffA->GetNdimensions();
910 Int_t effBinA[nEffDimA];
911 effBinA[0] = fHEffA->GetAxis(0)->FindBin(etaa);
912 effBinA[1] = fHEffA->GetAxis(1)->FindBin(pta);
913 effBinA[2] = fHEffA->GetAxis(2)->FindBin(fCentrality);
914 effBinA[3] = fHEffA->GetAxis(3)->FindBin(fZVertex);
916 effBinA[4] = fHEffA->GetAxis(4)->FindBin(phia);
918 effBinA[5] = fHEffA->GetAxis(5)->FindBin(sgna);
921 aQAWght = fHEffA->GetBinContent(effBinA);
923 // fill every associated particle once unweighted, once weighted
925 fHQAAp->Fill(pta,etaa,phia);
926 fHQAApCorr->Fill(pta,etaa,phia,aQAWght);
928 fHQAAm->Fill(pta,etaa,phia);
929 fHQAAmCorr->Fill(pta,etaa,phia,aQAWght);
931 fHPtCentA->Fill(pta,fCentrality);
936 if (!IsTrigger(etaa,pta))
939 Int_t abin = fHPtAss->FindBin(pta);
941 // efficiency weighting
942 Double_t effWtT = 1.0;
945 const Int_t nEffDimT = fHEffT->GetNdimensions();
946 Int_t effBinT[nEffDimT];
947 effBinT[0] = fHEffT->GetAxis(0)->FindBin(etaa);
948 effBinT[1] = fHEffT->GetAxis(1)->FindBin(pta);
949 effBinT[2] = fHEffT->GetAxis(2)->FindBin(fCentrality);
950 effBinT[3] = fHEffT->GetAxis(3)->FindBin(fZVertex);
952 effBinT[4] = fHEffT->GetAxis(4)->FindBin(phia);
954 effBinT[5] = fHEffT->GetAxis(5)->FindBin(sgna);
957 effWtT = fHEffT->GetBinContent(effBinT);
960 if (pairing == kSameEvt) {
961 fHTrk->Fill(phia,etaa);
963 fHQATp->Fill(pta,etaa,phia);
964 fHQATpCorr->Fill(pta,etaa,phia,effWtT);
966 fHQATm->Fill(pta,etaa,phia);
967 fHQATmCorr->Fill(pta,etaa,phia,effWtT);
969 fHPtCentT->Fill(pta,fCentrality);
971 fHPtTrgNorm1S->Fill(pta,fCentrality,fZVertex,effWtT);
973 fHPtTrgNorm1M->Fill(pta,fCentrality,fZVertex,effWtT);
977 for (Int_t j=0; j<jMax; ++j) {
978 // Associated particles
979 if (pairing == kSameEvt && i==j)
982 const AliMiniTrack &b(evt2.at(j));
984 Float_t ptb = b.Pt();
985 Float_t etab = b.Eta();
986 Float_t phib = b.Phi();
987 Int_t sgnb = b.Sign();
988 if (fPtTACrit&&(pta < ptb)) {
992 if (!IsAssociated(etab,ptb))
995 Int_t bbin = fHPtAss->FindBin(ptb);
997 Float_t dphi = DeltaPhi(phia, phib);
998 Float_t deta = etaa - etab;
999 // invariant mass under mu mu assumption
1000 Float_t muMass2 = 0.1056583715*0.1056583715;
1001 Float_t ea2 = muMass2 + pta*pta*TMath::CosH(etaa)*TMath::CosH(etaa);
1002 Float_t eb2 = muMass2 + ptb*ptb*TMath::CosH(etab)*TMath::CosH(etab);
1003 Float_t papb = pta*TMath::Cos(phia)*ptb*TMath::Cos(phib) +
1004 pta*TMath::Sin(phia)*ptb*TMath::Sin(phib) +
1005 pta*TMath::SinH(etaa)*ptb*TMath::SinH(etab);
1006 Float_t mass = TMath::Sqrt(2.0*(muMass2 + TMath::Sqrt(ea2*eb2) - papb));
1007 Int_t q2 = sgna + sgnb;
1008 if ((q2==0) && fDoMassCut) {
1009 if (mass>3.0 && mass<3.2)
1011 if (mass>9.2&&mass<9.8)
1015 Int_t index = globIndex+(abin-1)*nPtAssc+(bbin-1);
1016 Double_t weight = 1.0;
1017 // number of trigger weight event-by-event (CMS method)
1019 Double_t nTrgs = fHPtTrgEvt->GetBinContent(abin);
1021 AliError(Form("Trying to work with number of triggers weight = %f",nTrgs));
1027 // efficiency weighting
1034 // associated particle
1035 const Int_t nEffDimA = fHEffA->GetNdimensions();
1036 Int_t effBinA[nEffDimA];
1037 effBinA[0] = fHEffA->GetAxis(0)->FindBin(etab);
1038 effBinA[1] = fHEffA->GetAxis(1)->FindBin(ptb);
1039 effBinA[2] = fHEffA->GetAxis(2)->FindBin(fCentrality);
1040 effBinA[3] = fHEffA->GetAxis(3)->FindBin(fZVertex);
1042 effBinA[4] = fHEffA->GetAxis(4)->FindBin(phib);
1044 effBinA[5] = fHEffA->GetAxis(5)->FindBin(sgnb);
1047 weight *= fHEffA->GetBinContent(effBinA);
1050 if (hist[index]) { // check if this histogram exists, relevant in the fPtTACrit==kFALSE case
1051 hist[index]->Fill(dphi,deta,weight);
1053 if (pairing == kSameEvt) {
1054 fHPtAss->Fill(ptb); // fill every associated particle every time it is used
1056 fHSMass[mindex]->Fill(mass);
1059 fHMMass[mindex]->Fill(mass);
1064 if (pairing == kSameEvt) {
1065 fHPtTrgNorm2S->Fill(pta,fCentrality,fZVertex,effWtT);
1067 fHPtTrgNorm2M->Fill(pta,fCentrality,fZVertex,effWtT);
1075 //________________________________________________________________________
1076 void AliDhcTask::Terminate(Option_t *)
1078 // Draw result to the screen
1079 // Called once at the end of the query
1082 //________________________________________________________________________
1083 Bool_t AliDhcTask::VertexOk() const
1085 // Modified from AliAnalyseLeadingTrackUE::VertexSelection()
1087 Int_t nContributors = 0;
1088 Double_t zVertex = 999;
1091 Int_t runno = InputEvent()->GetRunNumber();
1092 if (runno>=176326 && runno<=197692) { // year 12 and 13
1093 if (!fUtils->IsVertexSelected2013pA(InputEvent()))
1098 const AliESDVertex* vtx = fESD->GetPrimaryVertex();
1101 nContributors = vtx->GetNContributors();
1102 zVertex = vtx->GetZ();
1103 name = vtx->GetName();
1105 if (fAOD->GetNumberOfVertices() < 1)
1107 const AliAODVertex* vtx = fAOD->GetPrimaryVertex();
1108 nContributors = vtx->GetNContributors();
1109 zVertex = vtx->GetZ();
1110 name = vtx->GetName();
1113 // Reject if TPC-only vertex
1114 if (name.CompareTo("TPCVertex")==0)
1117 // Check # contributors and range...
1118 if( nContributors < 1 || TMath::Abs(zVertex) > fZVtxMax ) {
1125 //________________________________________________________________________
1126 Bool_t AliDhcTask::IsGoodMUONtrack(AliESDMuonTrack &track)
1128 // Applying track cuts for MUON tracks
1130 if (!track.ContainTrackerData())
1132 Double_t thetaTrackAbsEnd = TMath::ATan(track.GetRAtAbsorberEnd()/505.) * TMath::RadToDeg();
1133 if ((thetaTrackAbsEnd < 2.) || (thetaTrackAbsEnd > 10.))
1135 Double_t eta = track.Eta();
1136 if ((eta < -4.) || (eta > -2.5))
1138 if (fTriggerMatch) {
1139 if (!track.ContainTriggerData())
1141 if (track.GetMatchTrigger() < 0.5)
1147 //________________________________________________________________________
1148 Bool_t AliDhcTask::IsGoodMUONtrack(AliAODTrack &track)
1150 // Applying track cuts for MUON tracks
1152 if (!track.IsMuonTrack())
1154 Double_t dThetaAbs = TMath::ATan(track.GetRAtAbsorberEnd()/505.)* TMath::RadToDeg();
1155 if ((dThetaAbs<2.) || (dThetaAbs>10.))
1157 Double_t dEta = track.Eta();
1158 if ((dEta<-4.) || (dEta>-2.5))
1160 if (fTriggerMatch) {
1161 if (track.GetMatchTrigger()<0.5)
1167 //________________________________________________________________________
1168 Bool_t AliDhcTask::IsTrigger(Double_t eta, Double_t pt)
1170 // is in trigger eta,pt range?
1171 Int_t bin = fHPtTrg->FindBin(pt);
1172 if (fHPtTrg->IsBinOverflow(bin) || fHPtTrg->IsBinUnderflow(bin))
1175 if (eta<fEtaTLo || eta>fEtaTHi)
1181 //________________________________________________________________________
1182 Bool_t AliDhcTask::IsAssociated(Double_t eta, Double_t pt)
1184 // is in associated eta,pt range?
1185 Int_t bin = fHPtAss->FindBin(pt);
1186 if (fHPtAss->IsBinOverflow(bin) || fHPtAss->IsBinUnderflow(bin))
1189 if (eta<fEtaALo || eta>fEtaAHi)
1195 //________________________________________________________________________
1196 AliDhcTask::~AliDhcTask()