1 // **************************************
2 // Task used for the correction of determiantion of reconstructed jet spectra
3 // Compares input (gen) and output (rec) jets
4 // *******************************************
7 /**************************************************************************
8 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
10 * Author: The ALICE Off-line Project. *
11 * Contributors are mentioned in the code where appropriate. *
13 * Permission to use, copy, modify and distribute this software and its *
14 * documentation strictly for non-commercial purposes is hereby granted *
15 * without fee, provided that the above copyright notice appears in all *
16 * copies and that both the copyright notice and this permission notice *
17 * appear in the supporting documentation. The authors make no claims *
18 * about the suitability of this software for any purpose. It is *
19 * provided "as is" without express or implied warranty. *
20 **************************************************************************/
27 #include <TInterpreter.h>
36 #include <TLorentzVector.h>
37 #include <TClonesArray.h>
38 #include "TDatabasePDG.h"
40 #include "AliAnalysisTaskJetServices.h"
41 #include "AliESDCentrality.h"
42 #include "AliAnalysisDataContainer.h"
43 #include "AliAnalysisDataSlot.h"
44 #include "AliAnalysisManager.h"
45 #include "AliJetFinder.h"
46 #include "AliJetHeader.h"
47 #include "AliJetReader.h"
48 #include "AliJetReaderHeader.h"
49 #include "AliUA1JetHeaderV1.h"
50 #include "AliESDEvent.h"
51 #include "AliAODEvent.h"
52 #include "AliAODHandler.h"
53 #include "AliAODTrack.h"
54 #include "AliAODJet.h"
55 #include "AliAODMCParticle.h"
56 #include "AliMCEventHandler.h"
57 #include "AliMCEvent.h"
59 #include "AliGenPythiaEventHeader.h"
60 #include "AliJetKineReaderHeader.h"
61 #include "AliGenCocktailEventHeader.h"
62 #include "AliInputEventHandler.h"
63 #include "AliPhysicsSelection.h"
64 #include "AliTriggerAnalysis.h"
66 #include "AliAnalysisHelperJetTasks.h"
68 ClassImp(AliAnalysisTaskJetServices)
70 AliAODHeader* AliAnalysisTaskJetServices::fgAODHeader = NULL;
72 AliAnalysisTaskJetServices::AliAnalysisTaskJetServices(): AliAnalysisTaskSE(),
74 fUsePhysicsSelection(kFALSE),
76 fFilterAODCollisions(kFALSE),
77 fPhysicsSelectionFlag(AliVEvent::kMB),
88 fMaxCosmicAngle(0.01),
94 fh1SelectionInfoESD(0x0),
95 fh1EventCutInfoESD(0),
97 fh2ESDTriggerCount(0x0),
99 fh2ESDTriggerVtx(0x0),
100 fh2ESDTriggerRun(0x0),
102 fh1NCosmicsPerEvent(0x0),
103 fTriggerAnalysis(0x0),
106 fRunRange[0] = fRunRange[1] = 0;
109 AliAnalysisTaskJetServices::AliAnalysisTaskJetServices(const char* name):
110 AliAnalysisTaskSE(name),
111 fUseAODInput(kFALSE),
112 fUsePhysicsSelection(kFALSE),
114 fFilterAODCollisions(kFALSE),
115 fPhysicsSelectionFlag(AliVEvent::kMB),
116 fSelectionInfoESD(0),
126 fMaxCosmicAngle(0.01),
131 fh1PtHardTrials(0x0),
132 fh1SelectionInfoESD(0x0),
133 fh1EventCutInfoESD(0),
134 fh2TriggerCount(0x0),
135 fh2ESDTriggerCount(0x0),
137 fh2ESDTriggerVtx(0x0),
138 fh2ESDTriggerRun(0x0),
140 fh1NCosmicsPerEvent(0x0),
141 fTriggerAnalysis(0x0),
144 fRunRange[0] = fRunRange[1] = 0;
145 DefineOutput(1,TList::Class());
150 Bool_t AliAnalysisTaskJetServices::Notify()
153 // Implemented Notify() to read the cross sections
154 // and number of trials from pyxsec.root
157 TTree *tree = AliAnalysisManager::GetAnalysisManager()->GetTree();
158 Float_t xsection = 0;
163 TFile *curfile = tree->GetCurrentFile();
165 Error("Notify","No current file");
168 if(!fh1Xsec||!fh1Trials){
169 Printf("%s%d No Histogram fh1Xsec",(char*)__FILE__,__LINE__);
172 AliAnalysisHelperJetTasks::PythiaInfoFromFile(curfile->GetName(),xsection,ftrials);
173 fh1Xsec->Fill("<#sigma>",xsection);
174 // construct a poor man average trials
175 Float_t nEntries = (Float_t)tree->GetTree()->GetEntries();
176 if(ftrials>=nEntries && nEntries>0.)fAvgTrials = ftrials/nEntries;
181 void AliAnalysisTaskJetServices::UserCreateOutputObjects()
185 // Create the output container
189 if (fDebug > 1) printf("AnalysisTaskJetServices::UserCreateOutputObjects() \n");
192 if(!fHistList)fHistList = new TList();
194 Bool_t oldStatus = TH1::AddDirectoryStatus();
195 TH1::AddDirectory(kFALSE);
196 fh1Xsec = new TProfile("fh1Xsec","xsec from pyxsec.root",1,0,1);
197 fh1Xsec->GetXaxis()->SetBinLabel(1,"<#sigma>");
198 fHistList->Add(fh1Xsec);
200 fh1Trials = new TH1F("fh1Trials","trials root file",1,0,1);
201 fh1Trials->GetXaxis()->SetBinLabel(1,"#sum{ntrials}");
202 fHistList->Add(fh1Trials);
204 const Int_t nBinPt = 100;
205 Double_t binLimitsPt[nBinPt+1];
206 for(Int_t iPt = 0;iPt <= nBinPt;iPt++){
208 binLimitsPt[iPt] = 0.0;
211 binLimitsPt[iPt] = binLimitsPt[iPt-1] + 2.5;
215 fh2TriggerCount = new TH2F("fh2TriggerCount",";Trigger No.;constrained;Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,kConstraints,-0.5,kConstraints-0.5);
216 fHistList->Add(fh2TriggerCount);
218 fh2ESDTriggerCount = new TH2F("fh2ESDTriggerCount",";Trigger No.;constrained;Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,kConstraints,-0.5,kConstraints-0.5);
219 fHistList->Add(fh2ESDTriggerCount);
220 const Int_t nBins = AliAnalysisHelperJetTasks::kTrigger*kConstraints;
221 fh2TriggerVtx = new TH2F("fh2TriggerVtx",";Constraint No. * (trig no+1);Vtx (cm);Count",nBins,-0.5,nBins-0.5,400,-20.,20.);
222 fHistList->Add(fh2TriggerVtx);
224 fh2ESDTriggerVtx = new TH2F("fh2ESDTriggerVtx",";Constraint No.* (trg no+1);Vtx (cm);Count",nBins,-0.5,nBins-0.5,400,-20.,20.);
225 fHistList->Add(fh2ESDTriggerVtx);
228 fh1PtHard = new TH1F("fh1PtHard","PYTHIA Pt hard;p_{T,hard}",nBinPt,binLimitsPt);
229 fHistList->Add(fh1PtHard);
230 fh1PtHardTrials = new TH1F("fh1PtHardTrials","PYTHIA Pt hard weight with trials;p_{T,hard}",nBinPt,binLimitsPt);
231 fHistList->Add(fh1PtHardTrials);
232 fh1SelectionInfoESD = new TH1F("fh1SelectionInfoESD","Bit Masks that satisfy the selection info",
233 AliAnalysisHelperJetTasks::kTotalSelections,0.5,AliAnalysisHelperJetTasks::kTotalSelections+0.5);
234 fHistList->Add(fh1SelectionInfoESD);
236 fh1EventCutInfoESD = new TH1F("fh1EventCutInfoESD","Bit Masks that for the events after each step of cuts",
237 kTotalEventCuts,0.5,kTotalEventCuts+0.5);
238 fHistList->Add(fh1EventCutInfoESD);
240 // 3 decisions, 0 trigger X, X + SPD vertex, X + SPD vertex in range
241 // 3 triggers BB BE/EB EE
243 fh2ESDTriggerRun = new TH2F("fh2ESDTriggerRun","Eventclass vs run number:run;trigger",(Int_t)(1+fRunRange[1]-fRunRange[0]),fRunRange[0]-0.5,fRunRange[1]+0.5,10,-0.5,9.5);
244 fHistList->Add(fh2ESDTriggerRun);
246 fh2VtxXY = new TH2F("fh2VtxXY","Beam Spot all INT triggered events;x (cm);y (cm)",160,-10,10,160,-10,10);
247 fHistList->Add(fh2VtxXY);
248 // =========== Switch on Sumw2 for all histos ===========
249 for (Int_t i=0; i<fHistList->GetEntries(); ++i) {
250 TH1 *h1 = dynamic_cast<TH1*>(fHistList->At(i));
255 THnSparse *hn = dynamic_cast<THnSparse*>(fHistList->At(i));
259 fh1NCosmicsPerEvent = new TH1F("fh1NCosmicsPerEvent","Number of cosmic candidates per event",10,0.,10.);
260 fHistList->Add(fh1NCosmicsPerEvent),
263 TH1::AddDirectory(oldStatus);
265 // Add an AOD branch for replication
266 if(fNonStdFile.Length()){
267 if (fDebug > 1) AliInfo("Replicating header");
268 fgAODHeader = new AliAODHeader;
269 AddAODBranch("AliAODHeader",&fgAODHeader,fNonStdFile.Data());
273 void AliAnalysisTaskJetServices::Init()
278 if (fDebug > 1) printf("AnalysisTaskJetServices::Init() \n");
282 void AliAnalysisTaskJetServices::UserExec(Option_t */*option*/)
286 // Execute analysis for current event
289 AliAODEvent *aod = 0;
290 AliESDEvent *esd = 0;
294 AliAnalysisHelperJetTasks::Selected(kTRUE,kFALSE); // set slection to false
295 AliAnalysisHelperJetTasks::EventClass(kTRUE,0);
296 fSelectionInfoESD = 0; // reset
297 fEventCutInfoESD = 0; // reset
298 AliAnalysisHelperJetTasks::SelectInfo(kTRUE,fSelectionInfoESD); // set slection to false
301 static AliAODHandler *aodH = dynamic_cast<AliAODHandler*>(AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler());
306 aod = dynamic_cast<AliAODEvent*>(InputEvent());
308 Printf("%s:%d AODEvent not found in Input Manager %d",(char*)__FILE__,__LINE__,fUseAODInput);
314 // assume that the AOD is in the general output...
317 Printf("%s:%d AODEvent not found in the Output",(char*)__FILE__,__LINE__);
320 esd = dynamic_cast<AliESDEvent*>(InputEvent());
323 fSelectionInfoESD |= kNoEventCut;
324 fEventCutInfoESD |= kNoEventCut;
326 Bool_t esdVtxValid = false;
327 Bool_t esdVtxIn = false;
328 Bool_t aodVtxValid = false;
329 Bool_t aodVtxIn = false;
333 if(!fTriggerAnalysis){
334 fTriggerAnalysis = new AliTriggerAnalysis;
335 fTriggerAnalysis->SetAnalyzeMC(fMC);
336 fTriggerAnalysis->SetSPDGFOThreshhold(1);
338 // fTriggerAnalysis->FillTriggerClasses(esd);
339 Bool_t v0A = fTriggerAnalysis->IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0A);
340 Bool_t v0C = fTriggerAnalysis->IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0C);
341 Bool_t v0ABG = fTriggerAnalysis->IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0ABG);
342 Bool_t v0CBG = fTriggerAnalysis->IsOfflineTriggerFired(esd, AliTriggerAnalysis::kV0CBG);
343 Bool_t spdFO = fTriggerAnalysis->SPDFiredChips(esd, 0);;
344 if(v0A)fSelectionInfoESD |= AliAnalysisHelperJetTasks::kV0A;
345 if(v0C)fSelectionInfoESD |= AliAnalysisHelperJetTasks::kV0C;
346 if(!(v0ABG||v0CBG))fSelectionInfoESD |= AliAnalysisHelperJetTasks::kNoV0BG;
347 if(spdFO)fSelectionInfoESD |= AliAnalysisHelperJetTasks::kSPDFO;
350 // Apply additional constraints
351 Bool_t esdEventSelected = IsEventSelected(esd);
352 Bool_t esdEventPileUp = IsEventPileUp(esd);
353 Bool_t esdEventCosmic = IsEventCosmic(esd);
355 Bool_t aodEventSelected = IsEventSelected(aod);
357 Bool_t physicsSelection = ((fInputHandler->IsEventSelected())&fPhysicsSelectionFlag);
358 if(aodH&&physicsSelection&&fFilterAODCollisions){
359 aodH->SetFillAOD(kTRUE);
363 fEventCutInfoESD |= kPhysicsSelectionCut; // other alreay set via IsEventSelected
364 fh1EventCutInfoESD->Fill(fEventCutInfoESD);
366 if(esdEventSelected) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kVertexIn;
367 if(esdEventPileUp) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kIsPileUp;
368 if(esdEventCosmic) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kIsCosmic;
369 if(physicsSelection) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kPhysicsSelection;
372 // here we have all selection information, fill histogram
373 for(unsigned int i = 1;i<(UInt_t)fh1SelectionInfoESD->GetNbinsX();i++){
374 if((i&fSelectionInfoESD)==i)fh1SelectionInfoESD->Fill(i);
376 AliAnalysisHelperJetTasks::SelectInfo(kTRUE,fSelectionInfoESD);
378 if(esd&&aod&&fDebug){
379 if(esdEventSelected&&!aodEventSelected){
380 Printf("%s:%d Different Selection for ESD and AOD",(char*)__FILE__,__LINE__);
381 const AliESDVertex *vtxESD = esd->GetPrimaryVertex();
382 const AliAODVertex *vtxAOD = aod->GetPrimaryVertex();
383 Printf("ESD Vtx %s %s %d",vtxESD->GetName(),vtxESD->GetTitle(),vtxESD->GetNContributors());
385 Printf("AOD Vtx %s %s %d",vtxAOD->GetName(),vtxAOD->GetTitle(),vtxAOD->GetNContributors());
390 // loop over all possible triggers for esd
393 const AliESDVertex *vtxESD = esd->GetPrimaryVertex();
394 esdVtxValid = IsVertexValid(vtxESD);
395 esdVtxIn = IsVertexIn(vtxESD);
396 Float_t zvtx = vtxESD->GetZ();
397 Int_t iCl = GetEventClass(esd);
398 AliAnalysisHelperJetTasks::EventClass(kTRUE,iCl);
399 Bool_t cand = physicsSelection;
401 Printf("%s:%d %d %d %d Icl %d",(char*)__FILE__,__LINE__,esdVtxValid,esdVtxIn,cand,iCl);
404 fh2ESDTriggerCount->Fill(0.,kSelectedALICE);
405 fh2ESDTriggerCount->Fill(iCl,kSelectedALICE);
406 fh2ESDTriggerVtx->Fill(kSelectedALICE*(iCl+1),zvtx);
408 // if(!fUsePhysicsSelection)cand = AliAnalysisHelperJetTasks::IsTriggerFired(esd,AliAnalysisHelperJetTasks::kMB1);
410 fh2ESDTriggerCount->Fill(0.,kTriggeredVertex);
411 fh2ESDTriggerCount->Fill(iCl,kTriggeredVertex);
412 fh2ESDTriggerVtx->Fill(iCl,zvtx);
414 fh2ESDTriggerCount->Fill(0.,kTriggeredVertexIn);
415 fh2ESDTriggerCount->Fill(iCl,kTriggeredVertexIn);
416 fh2ESDTriggerVtx->Fill(kTriggeredVertexIn*(iCl+1),zvtx);
419 fh2ESDTriggerCount->Fill(0.,kSelectedALICEVertexValid);
420 fh2ESDTriggerCount->Fill(iCl,kSelectedALICEVertexValid);
421 fh2ESDTriggerVtx->Fill(kSelectedALICEVertexValid*(iCl+1),zvtx);
425 fh2ESDTriggerCount->Fill(0.,kSelectedALICEVertexIn);
426 fh2ESDTriggerCount->Fill(iCl,kSelectedALICEVertexIn);
427 fh2ESDTriggerVtx->Fill(kSelectedALICEVertexIn*(iCl+1),zvtx);
428 fh2ESDTriggerVtx->Fill(kSelected*(iCl+1),zvtx);
429 fh2ESDTriggerCount->Fill(iCl,kSelected);
430 fh2ESDTriggerCount->Fill(0.,kSelected);
431 AliAnalysisHelperJetTasks::Selected(kTRUE,kTRUE);// select this event
436 const AliAODVertex *vtxAOD = aod->GetPrimaryVertex();
437 aodVtxValid = IsVertexValid(vtxAOD);
438 aodVtxIn = IsVertexIn(vtxAOD);
440 for(int it = AliAnalysisHelperJetTasks::kAcceptAll;it < AliAnalysisHelperJetTasks::kTrigger;it++){
441 Bool_t aodTrig = kFALSE;
442 aodTrig = AliAnalysisHelperJetTasks::IsTriggerFired(aod,(AliAnalysisHelperJetTasks::Trigger)it);
443 Bool_t cand = aod->GetHeader()->GetOfflineTrigger()&AliVEvent::kMB;
444 if(aodTrig)fh2TriggerCount->Fill(it,kAllTriggered);
446 Float_t zvtx = vtxAOD->GetZ();
448 fh2TriggerCount->Fill(it,kTriggeredVertex);
449 fh2TriggerVtx->Fill(kTriggeredVertex*(it+1),zvtx);
451 if(cand&&aodEventSelected){
452 fh2TriggerCount->Fill(it,kSelected);
454 if(aodTrig&&aodEventSelected){
455 fh2TriggerVtx->Fill(kTriggeredVertexIn*(it+1),zvtx);
456 fh2TriggerCount->Fill(it,kTriggeredVertexIn);
459 fh2TriggerCount->Fill(it,kSelectedALICEVertexValid);
460 fh2TriggerVtx->Fill(kSelectedALICEVertexValid*(it+1),zvtx);
461 if(aodEventSelected){
462 fh2TriggerCount->Fill(it,kSelectedALICEVertexIn);
463 fh2TriggerVtx->Fill(kSelectedALICEVertexIn*(it+1),zvtx);
470 if (fDebug > 1)printf(" AliAnalysisTaskJetServices: Analysing event # %5d\n", (Int_t) fEntry);
474 Double_t nTrials = 1; // Trials for MC trigger
476 fh1Trials->Fill("#sum{ntrials}",fAvgTrials);
477 AliMCEvent* mcEvent = MCEvent();
478 // AliStack *pStack = 0;
480 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
482 nTrials = pythiaGenHeader->Trials();
483 ptHard = pythiaGenHeader->GetPtHard();
484 int iProcessType = pythiaGenHeader->ProcessType();
486 // 12 f+barf -> f+barf
491 if (fDebug > 10)Printf("%d iProcessType %d",__LINE__, iProcessType);
492 if(fDebug>20)AliAnalysisHelperJetTasks::PrintStack(mcEvent);
493 fh1PtHard->Fill(ptHard);
494 fh1PtHardTrials->Fill(ptHard,nTrials);
496 }// if pythia gen header
502 if(fNonStdFile.Length()&&aod){
504 *fgAODHeader = *(dynamic_cast<AliAODHeader*>(aod->GetHeader()));
508 PostData(1, fHistList);
511 Bool_t AliAnalysisTaskJetServices::IsEventSelected(const AliESDEvent* esd){
512 if(!esd)return kFALSE;
513 const AliESDVertex *vtx = esd->GetPrimaryVertex();
514 return IsVertexIn(vtx); // vertex in calls vertex valid
518 Bool_t AliAnalysisTaskJetServices::IsEventSelected(const AliAODEvent* aod) const {
519 if(!aod)return kFALSE;
520 const AliAODVertex *vtx = aod->GetPrimaryVertex();
521 return IsVertexIn(vtx); // VertexIn calls VertexValid
524 Bool_t AliAnalysisTaskJetServices::IsVertexValid ( const AliESDVertex* vtx) {
526 // We can check the type of the vertex by its name and title
527 // if vertexer failed title is empty (default c'tor) and ncontributors is 0
529 // Tracks PrimaryVertex VertexerTracksNoConstraint
530 // Tracks PrimaryVertex VertexerTracksWithConstraint
531 // TPC TPCVertex VertexerTracksNoConstraint
532 // TPC TPCVertex VertexerTracksWithConstraint
533 // SPD SPDVertex vertexer: 3D
534 // SPD SPDVertex vertexer: Z
536 Int_t nCont = vtx->GetNContributors();
539 fEventCutInfoESD |= kContributorsCut1;
541 fEventCutInfoESD |= kContributorsCut2;
543 fEventCutInfoESD |= kContributorsCut3;
548 if(nCont<3)return kFALSE;
550 // do not want tpc only primary vertex
551 TString vtxName(vtx->GetName());
552 if(vtxName.Contains("TPCVertex")){
553 fEventCutInfoESD |= kVertexTPC;
556 if(vtxName.Contains("SPDVertex"))fEventCutInfoESD |= kVertexSPD;
557 if(vtxName.Contains("PrimaryVertex"))fEventCutInfoESD |= kVertexGlobal;
560 TString vtxTitle(vtx->GetTitle());
561 if(vtxTitle.Contains("vertexer: Z")){
562 if(vtx->GetDispersion()>0.02)return kFALSE;
564 fEventCutInfoESD |= kSPDDispersionCut;
569 Bool_t AliAnalysisTaskJetServices::IsVertexValid ( const AliAODVertex* vtx) const {
571 // We can check the type of the vertex by its name and title
572 // if vertexer failed title is empty (default c'tor) and ncontributors is 0
574 // Tracks PrimaryVertex VertexerTracksNoConstraint
575 // TPC TPCVertex VertexerTracksNoConstraint
576 // SPD SPDVertex vertexer: 3D
577 // SPD SPDVertex vertexer: Z
579 if(vtx->GetNContributors()<3)return kFALSE;
580 // do not want tpc only primary vertex
581 TString vtxName(vtx->GetName());
582 if(vtxName.Contains("TPCVertex"))return kFALSE;
584 // no dispersion yet...
586 TString vtxTitle(vtx->GetTitle());
587 if(vtxTitle.Contains("vertexer: Z")){
588 if(vtx->GetDispersion()>0.02)return kFALSE;
595 Bool_t AliAnalysisTaskJetServices::IsVertexIn (const AliESDVertex* vtx) {
597 if(!IsVertexValid(vtx))return kFALSE;
599 Float_t zvtx = vtx->GetZ();
600 Float_t yvtx = vtx->GetY();
601 Float_t xvtx = vtx->GetX();
609 if(TMath::Abs(zvtx)>fVtxZCut){
612 fEventCutInfoESD |= kVertexZCut;
613 Float_t r2 = yvtx*yvtx+xvtx*xvtx;
614 if(r2>(fVtxRCut*fVtxRCut)){
617 fEventCutInfoESD |= kVertexRCut;
622 Bool_t AliAnalysisTaskJetServices::IsVertexIn (const AliAODVertex* vtx) const {
624 if(!IsVertexValid(vtx))return kFALSE;
626 Float_t zvtx = vtx->GetZ();
627 Float_t yvtx = vtx->GetY();
628 Float_t xvtx = vtx->GetX();
634 Float_t r2 = yvtx*yvtx+xvtx*xvtx;
636 Bool_t vertexIn = TMath::Abs(zvtx)<fVtxZCut&&r2<(fVtxRCut*fVtxRCut);
640 Bool_t AliAnalysisTaskJetServices::IsEventPileUp(const AliESDEvent* esd) const{
641 if(!esd)return kFALSE;
642 return esd->IsPileupFromSPD();
645 Bool_t AliAnalysisTaskJetServices::IsEventCosmic(const AliESDEvent* esd) const {
646 if(!esd)return kFALSE;
647 // add track cuts for which we look for cosmics...
649 Bool_t isCosmic = kFALSE;
650 Int_t nTracks = esd->GetNumberOfTracks();
651 Int_t nCosmicCandidates = 0;
653 for (Int_t iTrack1 = 0; iTrack1 < nTracks; iTrack1++) {
654 AliESDtrack* track1 = (AliESDtrack*)esd->GetTrack(iTrack1);
655 if (!track1) continue;
656 UInt_t status1 = track1->GetStatus();
657 //If track is ITS stand alone track, skip the track
658 if (((status1 & AliESDtrack::kITSin) == 0 || (status1 & AliESDtrack::kTPCin))) continue;
659 if(track1->Pt()<fPtMinCosmic) continue;
660 //Start 2nd track loop to look for correlations
661 for (Int_t iTrack2 = iTrack1+1; iTrack2 < nTracks; iTrack2++) {
662 AliESDtrack* track2 = (AliESDtrack*)esd->GetTrack(iTrack2);
663 if(!track2) continue;
664 UInt_t status2 = track2->GetStatus();
665 //If track is ITS stand alone track, skip the track
666 if (((status2 & AliESDtrack::kITSin) == 0 || (status2 & AliESDtrack::kTPCin))) continue;
667 if(track2->Pt()<fPtMinCosmic) continue;
668 //Check if back-to-back
669 Double_t mom1[3],mom2[3];
670 track1->GetPxPyPz(mom1);
671 track2->GetPxPyPz(mom2);
672 TVector3 momv1(mom1[0],mom1[1],mom1[2]);
673 TVector3 momv2(mom2[0],mom2[1],mom2[2]);
674 Float_t theta = (float)(momv1.Phi()-momv2.Phi());
675 if(theta<-0.5*TMath::Pi()) theta+=2.*TMath::Pi();
677 Float_t deltaPhi = track1->Phi()-track2->Phi();
678 if(deltaPhi<-0.5*TMath::Pi()) deltaPhi+=2.*TMath::Pi();
680 Float_t rIsol = (float)(TMath::Sqrt( deltaPhi*deltaPhi+(track1->Eta()-track2->Eta())*(track1->Eta()-track2->Eta()) ));
681 if(rIsol<fRIsolMinCosmic) continue;
683 if(TMath::Abs(TMath::Pi()-theta)<fMaxCosmicAngle) {
684 nCosmicCandidates+=1;
691 fh1NCosmicsPerEvent->Fill((float)nCosmicCandidates);
697 Int_t AliAnalysisTaskJetServices::GetEventClass(AliESDEvent *esd){
700 if(esd->GetCentrality()){
701 cent = esd->GetCentrality()->GetCentralityPercentile("V0M");
710 void AliAnalysisTaskJetServices::Terminate(Option_t */*option*/)
712 // Terminate analysis