1 /**************************************************************************
2 * Copyright(c) 1998-2008, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 //*****************************************************
17 // Class AliEPSelectionTask
18 // Class to determine event plane
19 // author: Alberica Toia, Johanna Gramling
20 //*****************************************************
22 #include "AliEPSelectionTask.h"
28 #include <THnSparse.h>
31 #include <TObjString.h>
35 #include <TDirectory.h>
41 #include "AliAnalysisManager.h"
42 #include "AliVEvent.h"
44 #include "AliESDEvent.h"
45 #include "AliMCEvent.h"
46 #include "AliESDtrack.h"
47 #include "AliESDtrackCuts.h"
48 #include "AliESDHeader.h"
49 #include "AliESDInputHandler.h"
50 #include "AliAODHandler.h"
51 #include "AliAODEvent.h"
52 #include "AliHeader.h"
53 #include "AliGenHijingEventHeader.h"
54 #include "AliAnalysisTaskSE.h"
55 #include "AliPhysicsSelectionTask.h"
56 #include "AliPhysicsSelection.h"
57 #include "AliBackgroundSelection.h"
58 #include "AliESDUtils.h"
59 #include "AliOADBContainer.h"
60 #include "AliAODMCHeader.h"
61 #include "AliAODTrack.h"
62 #include "AliVTrack.h"
63 #include "AliEventplane.h"
67 ClassImp(AliEPSelectionTask)
69 //________________________________________________________________________
70 AliEPSelectionTask::AliEPSelectionTask():
72 fAnalysisInput("ESD"),
76 fUsePhiWeight(kFALSE),
78 fSaveTrackContribution(kFALSE),
106 // Default constructor
107 AliInfo("Event Plane Selection enabled.");
108 for(Int_t i = 0; i < 4; ++i) {
113 //________________________________________________________________________
114 AliEPSelectionTask::AliEPSelectionTask(const char *name):
115 AliAnalysisTaskSE(name),
116 fAnalysisInput("ESD"),
120 fUsePhiWeight(kFALSE),
121 fUsePtWeight(kFALSE),
122 fSaveTrackContribution(kFALSE),
123 fUserphidist(kFALSE),
150 // Default constructor
151 AliInfo("Event Plane Selection enabled.");
152 DefineOutput(1, TList::Class());
153 for(Int_t i = 0; i < 4; i++) {
158 //________________________________________________________________________
159 AliEPSelectionTask::~AliEPSelectionTask()
162 if (fOutputList && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()){
167 delete fESDtrackCuts;
180 if (fPeriod.CompareTo("LHC11h")==0){
181 for(Int_t i = 0; i < 4; i++) {
187 if(fHruns) delete fHruns;
191 //________________________________________________________________________
192 void AliEPSelectionTask::UserCreateOutputObjects()
194 // Create the output containers
195 if (fDebug>1) printf("AliEPSelectionTask::UserCreateOutputObjects() \n");
196 AliLog::SetClassDebugLevel("AliEPSelectionTask", AliLog::kInfo);
198 fOutputList = new TList();
199 fOutputList->SetOwner();
200 fHOutEventplaneQ = new TH1F("fHOutEventplaneQ","fHOutEventplaneQ; Event Plane Q",100,0,TMath::Pi());
201 fHOutPhi = new TH1F("fHOutPhi","fHOutPhi; Phi Distribution",100,0,TMath::TwoPi());
202 fHOutPhiCorr = new TH1F("fHOutPhiCorr","fHOutPhiCorr; Corrected Phi Distribution",100,0,TMath::TwoPi());
203 fHOutsub1sub2 = new TH2F("fHOutsub1sub2","fHOutsub1sub2; EP1; EP2",100,0,TMath::Pi(),100,0,TMath::Pi());
204 fHOutNTEPRes = new TH2F("fHOutNTEPRes","fHOutNTEPRes; Number of Tracks; Event Plane Resolution",100,0,5000,100,-TMath::Pi(),TMath::Pi());
205 fHOutPTPsi = new TH2F("fHOutPTPsi","fHOutPTPsi; PT; Phi-EP",100,0,20,100,0,TMath::Pi());
206 fHOutDiff = new TH2F("fHOutDiff","fHOutDiff; EP; MCEP",100,0,TMath::Pi(),100,0,TMath::Pi());
207 fHOutleadPTPsi = new TH2F("fHOutleadPTPsi","fHOutleadPTPsi; leadPT; EP",100,0,TMath::Pi(),100,0,TMath::Pi());
209 fOutputList->Add(fHOutEventplaneQ);
210 fOutputList->Add(fHOutPhi);
211 fOutputList->Add(fHOutPhiCorr);
212 fOutputList->Add(fHOutsub1sub2);
213 fOutputList->Add(fHOutNTEPRes);
214 fOutputList->Add(fHOutPTPsi);
215 fOutputList->Add(fHOutleadPTPsi);
216 fOutputList->Add(fHOutDiff);
218 PostData(1, fOutputList);
223 //________________________________________________________________________
224 void AliEPSelectionTask::UserExec(Option_t */*option*/)
226 // Execute analysis for current event:
227 if (fDebug>1) printf(" **** AliEPSelectionTask::UserExec() \n");
231 AliEventplane *esdEP;
234 Double_t fRP = 0.; // monte carlo reaction plane angle
236 if (fAnalysisInput.CompareTo("ESD")==0){
238 AliVEvent* event = InputEvent();
239 AliESDEvent* esd = dynamic_cast<AliESDEvent*>(event);
241 if (!(fRunNumber == esd->GetRunNumber())) {
242 fRunNumber = esd->GetRunNumber();
243 AliInfo(Form("Changing Phi-distribution to run %d",fRunNumber));
250 AliMCEvent* mcEvent = MCEvent();
251 if (mcEvent && mcEvent->GenEventHeader()) {
252 AliGenHijingEventHeader* headerH = dynamic_cast<AliGenHijingEventHeader*>(mcEvent->GenEventHeader());
253 if (headerH) fRP = headerH->ReactionPlaneAngle();
257 esdEP = esd->GetEventplane();
258 if (fSaveTrackContribution) {
259 esdEP->GetQContributionXArray()->Set(esd->GetNumberOfTracks());
260 esdEP->GetQContributionYArray()->Set(esd->GetNumberOfTracks());
261 esdEP->GetQContributionXArraysub1()->Set(esd->GetNumberOfTracks());
262 esdEP->GetQContributionYArraysub1()->Set(esd->GetNumberOfTracks());
263 esdEP->GetQContributionXArraysub2()->Set(esd->GetNumberOfTracks());
264 esdEP->GetQContributionYArraysub2()->Set(esd->GetNumberOfTracks());
267 TObjArray* tracklist = new TObjArray;
268 if (fTrackType.CompareTo("GLOBAL")==0) tracklist = fESDtrackCuts->GetAcceptedTracks(esd,kFALSE);
269 if (fTrackType.CompareTo("TPC")==0 && fPeriod.CompareTo("LHC10h")==0) tracklist = fESDtrackCuts->GetAcceptedTracks(esd,kTRUE);
270 else if (fTrackType.CompareTo("TPC")==0 && fPeriod.CompareTo("LHC11h")==0) tracklist = GetTracksForLHC11h(esd);
271 const int nt = tracklist->GetEntries();
274 fQVector = new TVector2(GetQ(esdEP,tracklist));
275 fEventplaneQ = fQVector->Phi()/2;
276 GetQsub(qq1, qq2, tracklist, esdEP);
277 fQsub1 = new TVector2(qq1);
278 fQsub2 = new TVector2(qq2);
279 fQsubRes = (fQsub1->Phi()/2 - fQsub2->Phi()/2);
281 esdEP->SetQVector(fQVector);
282 esdEP->SetEventplaneQ(fEventplaneQ);
283 esdEP->SetQsub(fQsub1,fQsub2);
284 esdEP->SetQsubRes(fQsubRes);
286 fHOutEventplaneQ->Fill(fEventplaneQ);
287 fHOutsub1sub2->Fill(fQsub1->Phi()/2,fQsub2->Phi()/2);
288 fHOutNTEPRes->Fill(nt,fQsubRes);
290 if (fUseMCRP) fHOutDiff->Fill(fEventplaneQ, fRP);
292 for (int iter = 0; iter<nt;iter++){
293 AliESDtrack* track = dynamic_cast<AliESDtrack*> (tracklist->At(iter));
295 float delta = track->Phi()-fEventplaneQ;
296 while (delta < 0) delta += TMath::Pi();
297 while (delta > TMath::Pi()) delta -= TMath::Pi();
298 fHOutPTPsi->Fill(track->Pt(),delta);
299 fHOutPhi->Fill(track->Phi());
300 fHOutPhiCorr->Fill(track->Phi(),GetPhiWeight(track));
304 AliESDtrack* trmax = esd->GetTrack(0);
305 for (int iter = 1; iter<nt;iter++){
306 AliESDtrack* track = dynamic_cast<AliESDtrack*> (tracklist->At(iter));
307 if (track && (track->Pt() > trmax->Pt())) trmax = track;
309 fHOutleadPTPsi->Fill(trmax->Phi(),fEventplaneQ);
317 else if (fAnalysisInput.CompareTo("AOD")==0){
318 AliVEvent* event = InputEvent();
319 AliAODEvent* aod = dynamic_cast<AliAODEvent*>(event);
322 if (!(fRunNumber == aod->GetRunNumber())) {
323 fRunNumber = aod->GetRunNumber();
324 AliInfo(Form("Changing Phi-distribution to run %d",fRunNumber));
330 AliAODMCHeader *headerH = dynamic_cast<AliAODMCHeader*>(aod->GetList()->FindObject(AliAODMCHeader::StdBranchName()));
331 if (headerH) fRP = headerH->GetReactionPlaneAngle();
334 esdEP = aod->GetHeader()->GetEventplaneP();
338 TObjArray* tracklist = GetAODTracksAndMaxID(aod,maxID);
340 if (fSaveTrackContribution) {
341 esdEP->GetQContributionXArray()->Set(maxID+1);
342 esdEP->GetQContributionYArray()->Set(maxID+1);
343 esdEP->GetQContributionXArraysub1()->Set(maxID+1);
344 esdEP->GetQContributionYArraysub1()->Set(maxID+1);
345 esdEP->GetQContributionXArraysub2()->Set(maxID+1);
346 esdEP->GetQContributionYArraysub2()->Set(maxID+1);
349 const int NT = tracklist->GetEntries();
352 fQVector = new TVector2(GetQ(esdEP,tracklist));
353 fEventplaneQ = fQVector->Phi()/2.;
354 GetQsub(qq1, qq2, tracklist, esdEP);
355 fQsub1 = new TVector2(qq1);
356 fQsub2 = new TVector2(qq2);
357 fQsubRes = (fQsub1->Phi()/2. - fQsub2->Phi()/2.);
359 esdEP->SetQVector(fQVector);
360 esdEP->SetEventplaneQ(fEventplaneQ);
361 esdEP->SetQsub(fQsub1,fQsub2);
362 esdEP->SetQsubRes(fQsubRes);
364 fHOutEventplaneQ->Fill(fEventplaneQ);
365 fHOutsub1sub2->Fill(fQsub1->Phi()/2.,fQsub2->Phi()/2.);
366 fHOutNTEPRes->Fill(NT,fQsubRes);
368 if (fUseMCRP) fHOutDiff->Fill(fEventplaneQ, fRP);
370 for (int iter = 0; iter<NT;iter++){
371 AliAODTrack* track = dynamic_cast<AliAODTrack*> (tracklist->At(iter));
373 float delta = track->Phi()-fEventplaneQ;
374 while (delta < 0) delta += TMath::Pi();
375 while (delta > TMath::Pi()) delta -= TMath::Pi();
376 fHOutPTPsi->Fill(track->Pt(),delta);
377 fHOutPhi->Fill(track->Phi());
378 fHOutPhiCorr->Fill(track->Phi(),GetPhiWeight(track));
382 AliAODTrack* trmax = aod->GetTrack(0);
383 for (int iter = 1; iter<NT;iter++){
384 AliAODTrack* track = dynamic_cast<AliAODTrack*> (tracklist->At(iter));
385 if (track && (track->Pt() > trmax->Pt())) trmax = track;
387 fHOutleadPTPsi->Fill(trmax->Phi(),fEventplaneQ);
398 printf(" Analysis Input not known!\n\n ");
401 PostData(1, fOutputList);
404 //________________________________________________________________________
405 void AliEPSelectionTask::Terminate(Option_t */*option*/)
407 // Terminate analysis
410 //__________________________________________________________________________
411 TVector2 AliEPSelectionTask::GetQ(AliEventplane* EP, TObjArray* tracklist)
420 int nt = tracklist->GetEntries();
422 for (int i=0; i<nt; i++){
424 track = dynamic_cast<AliVTrack*> (tracklist->At(i));
426 weight = GetWeight(track);
427 if (fSaveTrackContribution){
428 idtemp = track->GetID();
429 if ((fAnalysisInput.CompareTo("AOD")==0) && (fAODfilterbit == 128)) idtemp = idtemp*(-1) - 1;
430 EP->GetQContributionXArray()->AddAt(weight*cos(2*track->Phi()),idtemp);
431 EP->GetQContributionYArray()->AddAt(weight*sin(2*track->Phi()),idtemp);
433 mQx += (weight*cos(2*track->Phi()));
434 mQy += (weight*sin(2*track->Phi()));
441 //________________________________________________________________________
442 void AliEPSelectionTask::GetQsub(TVector2 &Q1, TVector2 &Q2, TObjArray* tracklist,AliEventplane* EP)
446 float mQx1=0, mQy1=0, mQx2=0, mQy2=0;
452 int nt = tracklist->GetEntries();
453 int trackcounter1=0, trackcounter2=0;
456 if (fSplitMethod == AliEPSelectionTask::kRandom){
458 for (Int_t i = 0; i < nt; i++) {
460 track = dynamic_cast<AliVTrack*> (tracklist->At(i));
461 if (!track) continue;
462 weight = GetWeight(track);
463 idtemp = track->GetID();
464 if ((fAnalysisInput.CompareTo("AOD")==0) && (fAODfilterbit == 128)) idtemp = idtemp*(-1) - 1;
466 // This loop splits the track set into 2 random subsets
467 if( trackcounter1 < int(nt/2.) && trackcounter2 < int(nt/2.)){
468 float random = rn.Rndm();
470 mQx1 += (weight*cos(2*track->Phi()));
471 mQy1 += (weight*sin(2*track->Phi()));
472 if (fSaveTrackContribution){
473 EP->GetQContributionXArraysub1()->AddAt(weight*cos(2*track->Phi()),idtemp);
474 EP->GetQContributionYArraysub1()->AddAt(weight*sin(2*track->Phi()),idtemp);
479 mQx2 += (weight*cos(2*track->Phi()));
480 mQy2 += (weight*sin(2*track->Phi()));
481 if (fSaveTrackContribution){
482 EP->GetQContributionXArraysub2()->AddAt(weight*cos(2*track->Phi()),idtemp);
483 EP->GetQContributionYArraysub2()->AddAt(weight*sin(2*track->Phi()),idtemp);
488 else if( trackcounter1 >= int(nt/2.)){
489 mQx2 += (weight*cos(2*track->Phi()));
490 mQy2 += (weight*sin(2*track->Phi()));
491 if (fSaveTrackContribution){
492 EP->GetQContributionXArraysub2()->AddAt(weight*cos(2*track->Phi()),idtemp);
493 EP->GetQContributionYArraysub2()->AddAt(weight*sin(2*track->Phi()),idtemp);
498 mQx1 += (weight*cos(2*track->Phi()));
499 mQy1 += (weight*sin(2*track->Phi()));
500 if (fSaveTrackContribution){
501 EP->GetQContributionXArraysub1()->AddAt(weight*cos(2*track->Phi()),idtemp);
502 EP->GetQContributionYArraysub1()->AddAt(weight*sin(2*track->Phi()),idtemp);
507 } else if (fSplitMethod == AliEPSelectionTask::kEta) {
509 for (Int_t i = 0; i < nt; i++) {
511 track = dynamic_cast<AliVTrack*> (tracklist->At(i));
512 if (!track) continue;
513 weight = GetWeight(track);
514 Double_t eta = track->Eta();
515 idtemp = track->GetID();
516 if ((fAnalysisInput.CompareTo("AOD")==0) && (fAODfilterbit == 128)) idtemp = idtemp*(-1) - 1;
518 if (eta > fEtaGap/2.) {
519 mQx1 += (weight*cos(2*track->Phi()));
520 mQy1 += (weight*sin(2*track->Phi()));
521 if (fSaveTrackContribution){
522 EP->GetQContributionXArraysub1()->AddAt(weight*cos(2*track->Phi()),idtemp);
523 EP->GetQContributionYArraysub1()->AddAt(weight*sin(2*track->Phi()),idtemp);
525 } else if (eta < -1.*fEtaGap/2.) {
526 mQx2 += (weight*cos(2*track->Phi()));
527 mQy2 += (weight*sin(2*track->Phi()));
528 if (fSaveTrackContribution){
529 EP->GetQContributionXArraysub2()->AddAt(weight*cos(2*track->Phi()),idtemp);
530 EP->GetQContributionYArraysub2()->AddAt(weight*sin(2*track->Phi()),idtemp);
534 } else if (fSplitMethod == AliEPSelectionTask::kCharge) {
536 for (Int_t i = 0; i < nt; i++) {
538 track = dynamic_cast<AliVTrack*> (tracklist->At(i));
539 if (!track) continue;
540 weight = GetWeight(track);
541 Short_t cha = track->Charge();
542 idtemp = track->GetID();
543 if ((fAnalysisInput.CompareTo("AOD")==0) && (fAODfilterbit == 128)) idtemp = idtemp*(-1) - 1;
546 mQx1 += (weight*cos(2*track->Phi()));
547 mQy1 += (weight*sin(2*track->Phi()));
548 if (fSaveTrackContribution){
549 EP->GetQContributionXArraysub1()->AddAt(weight*cos(2*track->Phi()),idtemp);
550 EP->GetQContributionYArraysub1()->AddAt(weight*sin(2*track->Phi()),idtemp);
552 } else if (cha < 0) {
553 mQx2 += (weight*cos(2*track->Phi()));
554 mQy2 += (weight*sin(2*track->Phi()));
555 if (fSaveTrackContribution){
556 EP->GetQContributionXArraysub2()->AddAt(weight*cos(2*track->Phi()),idtemp);
557 EP->GetQContributionYArraysub2()->AddAt(weight*sin(2*track->Phi()),idtemp);
562 printf("plane resolution determination method not available!\n\n ");
566 mQ[0].Set(mQx1,mQy1);
567 mQ[1].Set(mQx2,mQy2);
572 //________________________________________________________________________
573 void AliEPSelectionTask::SetPersonalESDtrackCuts(AliESDtrackCuts* trackcuts){
576 delete fESDtrackCuts;
579 if (fAnalysisInput.CompareTo("AOD")==0){
580 AliInfo("ESD track cuts not possible for AOD analysis; please use SetPersonalAODtrackCuts(); using TPC only track cuts");
586 fESDtrackCuts = trackcuts;
589 //________________________________________________________________________
590 void AliEPSelectionTask::SetPersonalAODtrackCuts(UInt_t filterbit, Float_t etalow, Float_t etaup, Float_t ptlow, Float_t ptup, Int_t ntpc){
593 delete fESDtrackCuts;
596 if (fAnalysisInput.CompareTo("ESD")==0){
597 AliInfo("AOD track cuts not possible for ESD analysis; please use SetPersonalESDtrackCuts(); using TPC only track cuts");
603 fESDtrackCuts = new AliESDtrackCuts();
604 fESDtrackCuts->SetPtRange(ptlow,ptup);
605 fESDtrackCuts->SetMinNClustersTPC(ntpc);
606 fESDtrackCuts->SetEtaRange(etalow,etaup);
607 fAODfilterbit = filterbit;
610 //_____________________________________________________________________________
612 void AliEPSelectionTask::SetTrackType(TString tracktype){
613 fTrackType = tracktype;
615 if (fTrackType.CompareTo("GLOBAL")==0){
616 fESDtrackCuts = AliESDtrackCuts::GetStandardITSTPCTrackCuts2010(kTRUE);
619 if (fTrackType.CompareTo("TPC")==0){
620 fESDtrackCuts = AliESDtrackCuts::GetStandardTPCOnlyTrackCuts();
623 fESDtrackCuts->SetPtRange(0.15,20.);
624 fESDtrackCuts->SetEtaRange(-0.8,0.8);
628 //________________________________________________________________________
629 Double_t AliEPSelectionTask::GetWeight(TObject* track1)
632 AliVTrack* track = dynamic_cast<AliVTrack*>(track1);
633 if (fUsePtWeight && track) {
634 if (track->Pt()<2) ptweight=track->Pt();
637 return ptweight*GetPhiWeight(track);
640 //________________________________________________________________________
641 Double_t AliEPSelectionTask::GetPhiWeight(TObject* track1)
643 Double_t phiweight=1;
644 AliVTrack* track = dynamic_cast<AliVTrack*>(track1);
647 if(track) phiDist = SelectPhiDist(track);
649 if (fUsePhiWeight && phiDist && track) {
650 Double_t nParticles = phiDist->Integral();
651 Double_t nPhibins = phiDist->GetNbinsX();
653 Double_t Phi = track->Phi();
655 while (Phi<0) Phi += TMath::TwoPi();
656 while (Phi>TMath::TwoPi()) Phi -= TMath::TwoPi();
658 Double_t PhiDistValue = phiDist->GetBinContent(1+TMath::FloorNint((track->Phi())*nPhibins/TMath::TwoPi()));
660 if (PhiDistValue > 0) phiweight = nParticles/nPhibins/PhiDistValue;
665 //__________________________________________________________________________
666 void AliEPSelectionTask::SetPhiDist()
668 if(!fUserphidist && (fPeriod.CompareTo("LHC10h") == 0 || fPeriod.CompareTo("LHC11h") == 0)) { // if it's already set and custom class is required, we use the one provided by the user
670 if (fPeriod.CompareTo("LHC10h")==0)
672 fPhiDist[0] = (TH1F*) fEPContainer->GetObject(fRunNumber, "Default");}
673 else if(fPeriod.CompareTo("LHC11h")==0){
674 Int_t runbin=fHruns->FindBin(fRunNumber);
675 if (fHruns->GetBinContent(runbin) > 1){
676 fSparseDist->GetAxis(0)->SetRange(runbin,runbin);
678 else if(fHruns->GetBinContent(runbin) < 2){
679 fSparseDist->GetAxis(0)->SetRange(1,2901); // not calibrated run, use integrated phi-weights
680 AliInfo("Using integrated Phi-weights for this run");
682 for (Int_t i = 0; i<4 ;i++)
689 fSparseDist->GetAxis(1)->SetRange(1,1); // neg charge
690 fSparseDist->GetAxis(2)->SetRange(1,1);} // neg eta
692 fSparseDist->GetAxis(1)->SetRange(2,2); // pos charge
693 fSparseDist->GetAxis(2)->SetRange(1,1);} // neg eta
695 fSparseDist->GetAxis(1)->SetRange(1,1); // neg charge
696 fSparseDist->GetAxis(2)->SetRange(2,2);} // pos eta
698 fSparseDist->GetAxis(1)->SetRange(2,2); // pos charge
699 fSparseDist->GetAxis(2)->SetRange(2,2);} // pos eta
700 fPhiDist[i] = (TH1F*)fSparseDist->Projection(3); // Projection on Phi
701 fPhiDist[i]->SetName(Form("phidist%d%d",i,fRunNumber));
702 fSparseDist->GetAxis(1)->SetRange(1,2); // reset axes
703 fSparseDist->GetAxis(2)->SetRange(1,2);
705 fSparseDist->GetAxis(0)->SetRange(1,2901);// reset run axis
708 if (!fPhiDist[0]) AliFatal(Form("Cannot find OADB phi distribution for run %d", fRunNumber));
713 if (fPeriod.CompareTo("LHC10h")==0 || fUserphidist){
720 for (int i=1; i<fPhiDist[0]->GetNbinsX(); i++){
721 if (!((fPhiDist[0]->GetBinContent(i))>0)) {
726 cout << "empty bins - rebinning!" << endl;
727 fPhiDist[0]->Rebin();
734 AliError("After Maximum of rebinning still empty Phi-bins!!!");
737 if (fPeriod.CompareTo("LHC10h") != 0 && fPeriod.CompareTo("LHC11h") != 0 && !fUserphidist){
738 AliInfo("No Phi-weights available. All Phi weights set to 1");
739 SetUsePhiWeight(kFALSE);
743 //__________________________________________________________________________
744 void AliEPSelectionTask::SetPersonalPhiDistribution(const char* infilename, char* listname)
747 fUserphidist = kTRUE;
750 TObject* list = f.Get(listname);
751 fPhiDist[0] = (TH1F*)list->FindObject("fHOutPhi");
752 if (!fPhiDist[0]) AliFatal("Phi Distribution not found!!!");
758 //_________________________________________________________________________
759 TObjArray* AliEPSelectionTask::GetAODTracksAndMaxID(AliAODEvent* aod, Int_t& maxid)
761 TObjArray *acctracks = new TObjArray();
765 Int_t maxidtemp = -1;
770 fESDtrackCuts->GetPtRange(ptlow,ptup);
771 fESDtrackCuts->GetEtaRange(etalow,etaup);
772 Int_t ntpc = fESDtrackCuts->GetMinNClusterTPC();
774 for (Int_t i = 0; i < aod->GetNumberOfTracks() ; i++){
775 tr = aod->GetTrack(i);
776 maxidtemp = tr->GetID();
777 if(maxidtemp < 0 && fAODfilterbit != 128) continue;
778 if(maxidtemp > -1 && fAODfilterbit == 128) continue;
779 if (fAODfilterbit == 128) maxidtemp = maxidtemp*(-1) - 1;
780 if (maxidtemp > maxid1) maxid1 = maxidtemp;
781 if(tr->TestFilterBit(fAODfilterbit) && tr->Pt() < ptup && tr->Pt() > ptlow && tr->Eta() < etaup && tr->Eta() > etalow && tr->GetTPCNcls() > ntpc){
792 //_________________________________________________________________________
793 void AliEPSelectionTask::SetOADBandPeriod()
795 TString oadbfilename;
797 if (fRunNumber >= 136851 && fRunNumber <= 139515) // LHC10h
799 if (!fUserphidist) { // if it's already set and custom class is required, we use the one provided by the user
801 if (fAnalysisInput.CompareTo("AOD")==0){
802 oadbfilename = (Form("%s/COMMON/EVENTPLANE/data/epphidist.aod.root", AliAnalysisManager::GetOADBPath()));
803 } else if (fAnalysisInput.CompareTo("ESD")==0){
804 oadbfilename = (Form("%s/COMMON/EVENTPLANE/data/epphidist.root", AliAnalysisManager::GetOADBPath()));
807 TFile foadb(oadbfilename);
808 if(!foadb.IsOpen()) AliFatal(Form("Cannot open OADB file %s", oadbfilename.Data()));
810 AliInfo("Using Standard OADB");
811 fEPContainer = (AliOADBContainer*) foadb.Get("epphidist");
812 if (!fEPContainer) AliFatal("Cannot fetch OADB container for EP selection");
817 if (fRunNumber >= 166529 && fRunNumber <= 170593) // LHC11h
820 // if it's already set and custom class is required, we use the one provided by the user
822 oadbfilename = (Form("%s/COMMON/EVENTPLANE/data/epphidist2011.root", AliAnalysisManager::GetOADBPath()));
823 TFile *foadb = TFile::Open(oadbfilename);
824 if(!foadb->IsOpen()) AliFatal(Form("Cannot open OADB file %s", oadbfilename.Data()));
826 AliInfo("Using Standard OADB");
827 fSparseDist = (THnSparse*) foadb->Get("Default");
828 if (!fSparseDist) AliFatal("Cannot fetch OADB container for EP selection");
831 fHruns = (TH1F*)fSparseDist->Projection(0); //projection on run axis;
832 fHruns->SetName("runsHisto");
838 //_________________________________________________________________________
839 TH1F* AliEPSelectionTask::SelectPhiDist(AliVTrack *track)
841 if (fPeriod.CompareTo("LHC10h")==0 || fUserphidist) return fPhiDist[0];
842 else if(fPeriod.CompareTo("LHC11h")==0)
844 if (track->Charge() < 0)
846 if(track->Eta() < 0.) return fPhiDist[0];
847 else if (track->Eta() > 0.) return fPhiDist[2];
849 else if (track->Charge() > 0)
851 if(track->Eta() < 0.) return fPhiDist[1];
852 else if (track->Eta() > 0.) return fPhiDist[3];
859 TObjArray* AliEPSelectionTask::GetTracksForLHC11h(AliESDEvent* esd)
861 // Need to do this hack beacuse only this type of TPC only tracks in AOD is available and one type of Phi-weights is used
862 TObjArray *acctracks = new TObjArray();
863 acctracks->SetOwner(kTRUE);
865 const AliESDVertex *vtxSPD = esd->GetPrimaryVertexSPD();
871 fESDtrackCuts->GetPtRange(ptlow,ptup);
872 fESDtrackCuts->GetEtaRange(etalow,etaup);
874 Double_t pDCA[3] = { 0. }; // momentum at DCA
875 Double_t rDCA[3] = { 0. }; // position at DCA
876 Float_t dDCA[2] = {0.}; // DCA to the vertex d and z
877 Float_t cDCA[3] = {0.}; // covariance of impact parameters
881 for (Int_t i = 0; i < esd->GetNumberOfTracks() ; i++){
883 AliESDtrack* esdTrack = esd->GetTrack(i); //carefull do not modify it othwise need to work with a copy
886 if (!fESDtrackCuts->AcceptTrack(esdTrack)) continue;
888 // create a tpc only tracl
889 AliESDtrack *track = AliESDtrackCuts::GetTPCOnlyTrack(const_cast<AliESDEvent*>(esd),esdTrack->GetID());
894 // only constrain tracks above threshold
895 AliExternalTrackParam exParam;
896 // take the B-field from the ESD, no 3D fieldMap available at this point
897 Bool_t relate = false;
898 relate = track->RelateToVertexTPC(vtxSPD,esd->GetMagneticField(),kVeryBig,&exParam);
903 // fetch the track parameters at the DCA (unconstraint)
904 if(track->GetTPCInnerParam()){
905 track->GetTPCInnerParam()->GetPxPyPz(pDCA);
906 track->GetTPCInnerParam()->GetXYZ(rDCA);
908 // get the DCA to the vertex:
909 track->GetImpactParametersTPC(dDCA,cDCA);
910 // set the constrained parameters to the track
911 track->Set(exParam.GetX(),exParam.GetAlpha(),exParam.GetParameter(),exParam.GetCovariance());
915 Float_t eta = track->Eta();
916 Float_t pT = track->Pt();
918 if(pT < ptlow || pT > ptup || eta < etalow || eta > etaup){
923 acctracks->Add(track);