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 "AliAnalysisDataContainer.h"
42 #include "AliAnalysisDataSlot.h"
43 #include "AliAnalysisManager.h"
44 #include "AliJetFinder.h"
45 #include "AliJetHeader.h"
46 #include "AliJetReader.h"
47 #include "AliJetReaderHeader.h"
48 #include "AliUA1JetHeaderV1.h"
49 #include "AliESDEvent.h"
50 #include "AliAODEvent.h"
51 #include "AliAODHandler.h"
52 #include "AliAODTrack.h"
53 #include "AliAODJet.h"
54 #include "AliAODMCParticle.h"
55 #include "AliMCEventHandler.h"
56 #include "AliMCEvent.h"
58 #include "AliGenPythiaEventHeader.h"
59 #include "AliJetKineReaderHeader.h"
60 #include "AliGenCocktailEventHeader.h"
61 #include "AliInputEventHandler.h"
62 #include "AliPhysicsSelection.h"
65 #include "AliAnalysisHelperJetTasks.h"
67 ClassImp(AliAnalysisTaskJetServices)
69 AliAnalysisTaskJetServices::AliAnalysisTaskJetServices(): AliAnalysisTaskSE(),
71 fUsePhysicsSelection(kFALSE),
83 fMaxCosmicAngle(0.01),
88 fh1SelectionInfoESD(0x0),
89 fh1EventCutInfoESD(0),
91 fh2ESDTriggerCount(0x0),
93 fh2ESDTriggerVtx(0x0),
94 fh2ESDTriggerRun(0x0),
96 fh1NCosmicsPerEvent(0x0),
99 fRunRange[0] = fRunRange[1] = 0;
102 AliAnalysisTaskJetServices::AliAnalysisTaskJetServices(const char* name):
103 AliAnalysisTaskSE(name),
104 fUseAODInput(kFALSE),
105 fUsePhysicsSelection(kFALSE),
107 fSelectionInfoESD(0),
117 fMaxCosmicAngle(0.01),
121 fh1PtHardTrials(0x0),
122 fh1SelectionInfoESD(0x0),
123 fh1EventCutInfoESD(0),
124 fh2TriggerCount(0x0),
125 fh2ESDTriggerCount(0x0),
127 fh2ESDTriggerVtx(0x0),
128 fh2ESDTriggerRun(0x0),
130 fh1NCosmicsPerEvent(0x0),
133 fRunRange[0] = fRunRange[1] = 0;
134 DefineOutput(1,TList::Class());
139 Bool_t AliAnalysisTaskJetServices::Notify()
142 // Implemented Notify() to read the cross sections
143 // and number of trials from pyxsec.root
146 TTree *tree = AliAnalysisManager::GetAnalysisManager()->GetTree();
147 Float_t xsection = 0;
152 TFile *curfile = tree->GetCurrentFile();
154 Error("Notify","No current file");
157 if(!fh1Xsec||!fh1Trials){
158 Printf("%s%d No Histogram fh1Xsec",(char*)__FILE__,__LINE__);
161 AliAnalysisHelperJetTasks::PythiaInfoFromFile(curfile->GetName(),xsection,ftrials);
162 fh1Xsec->Fill("<#sigma>",xsection);
163 // construct a poor man average trials
164 Float_t nEntries = (Float_t)tree->GetTree()->GetEntries();
165 if(ftrials>=nEntries && nEntries>0.)fAvgTrials = ftrials/nEntries;
170 void AliAnalysisTaskJetServices::UserCreateOutputObjects()
174 // Create the output container
178 if (fDebug > 1) printf("AnalysisTaskJetServices::UserCreateOutputObjects() \n");
181 if(!fHistList)fHistList = new TList();
183 Bool_t oldStatus = TH1::AddDirectoryStatus();
184 TH1::AddDirectory(kFALSE);
185 fh1Xsec = new TProfile("fh1Xsec","xsec from pyxsec.root",1,0,1);
186 fh1Xsec->GetXaxis()->SetBinLabel(1,"<#sigma>");
187 fHistList->Add(fh1Xsec);
189 fh1Trials = new TH1F("fh1Trials","trials root file",1,0,1);
190 fh1Trials->GetXaxis()->SetBinLabel(1,"#sum{ntrials}");
191 fHistList->Add(fh1Trials);
193 const Int_t nBinPt = 100;
194 Double_t binLimitsPt[nBinPt+1];
195 for(Int_t iPt = 0;iPt <= nBinPt;iPt++){
197 binLimitsPt[iPt] = 0.0;
200 binLimitsPt[iPt] = binLimitsPt[iPt-1] + 2.5;
204 fh2TriggerCount = new TH2F("fh2TriggerCount",";Trigger No.;constrained;Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,kConstraints,-0.5,kConstraints-0.5);
205 fHistList->Add(fh2TriggerCount);
207 fh2ESDTriggerCount = new TH2F("fh2ESDTriggerCount",";Trigger No.;constrained;Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,kConstraints,-0.5,kConstraints-0.5);
208 fHistList->Add(fh2ESDTriggerCount);
210 fh2TriggerVtx = new TH2F("fh2TriggerVtx",";Trigger No.;Vtx (cm);Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,400,-20.,20.);
211 fHistList->Add(fh2TriggerVtx);
213 fh2ESDTriggerVtx = new TH2F("fh2ESDTriggerVtx",";Trigger No.;Vtx (cm);Count",AliAnalysisHelperJetTasks::kTrigger,-0.5,AliAnalysisHelperJetTasks::kTrigger-0.5,400,-20.,20.);
214 fHistList->Add(fh2ESDTriggerVtx);
217 fh1PtHard = new TH1F("fh1PtHard","PYTHIA Pt hard;p_{T,hard}",nBinPt,binLimitsPt);
218 fHistList->Add(fh1PtHard);
219 fh1PtHardTrials = new TH1F("fh1PtHardTrials","PYTHIA Pt hard weight with trials;p_{T,hard}",nBinPt,binLimitsPt);
220 fHistList->Add(fh1PtHardTrials);
221 fh1SelectionInfoESD = new TH1F("fh1SelectionInfoESD","Bit Masks that satisfy the selection info",
222 AliAnalysisHelperJetTasks::kTotalSelections,0.5,AliAnalysisHelperJetTasks::kTotalSelections+0.5);
223 fHistList->Add(fh1SelectionInfoESD);
225 fh1EventCutInfoESD = new TH1F("fh1EventCutInfoESD","Bit Masks that for the events after each step of cuts",
226 kTotalEventCuts,0.5,kTotalEventCuts+0.5);
227 fHistList->Add(fh1EventCutInfoESD);
229 // 3 decisions, 0 trigger X, X + SPD vertex, X + SPD vertex in range
230 // 3 triggers BB BE/EB EE
232 fh2ESDTriggerRun = new TH2F("fh2ESDTriggerRun","Trigger 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);
233 fHistList->Add(fh2ESDTriggerRun);
235 fh2VtxXY = new TH2F("fh2VtxXY","Beam Spot all INT triggered events;x (cm);y (cm)",160,-10,10,160,-10,10);
236 fHistList->Add(fh2VtxXY);
237 // =========== Switch on Sumw2 for all histos ===========
238 for (Int_t i=0; i<fHistList->GetEntries(); ++i) {
239 TH1 *h1 = dynamic_cast<TH1*>(fHistList->At(i));
244 THnSparse *hn = dynamic_cast<THnSparse*>(fHistList->At(i));
248 fh1NCosmicsPerEvent = new TH1F("fh1NCosmicsPerEvent","Number of cosmic candidates per event",10,0.,10.);
249 fHistList->Add(fh1NCosmicsPerEvent),
252 TH1::AddDirectory(oldStatus);
255 void AliAnalysisTaskJetServices::Init()
260 if (fDebug > 1) printf("AnalysisTaskJetServices::Init() \n");
264 void AliAnalysisTaskJetServices::UserExec(Option_t */*option*/)
268 // Execute analysis for current event
271 AliAODEvent *aod = 0;
272 AliESDEvent *esd = 0;
274 AliAnalysisHelperJetTasks::Selected(kTRUE,kFALSE); // set slection to false
275 fSelectionInfoESD = 0; // reset
276 fEventCutInfoESD = 0; // reset
277 AliAnalysisHelperJetTasks::SelectInfo(kTRUE,fSelectionInfoESD); // set slection to false
281 aod = dynamic_cast<AliAODEvent*>(InputEvent());
283 Printf("%s:%d AODEvent not found in Input Manager %d",(char*)__FILE__,__LINE__,fUseAODInput);
289 // assume that the AOD is in the general output...
292 Printf("%s:%d AODEvent not found in the Output",(char*)__FILE__,__LINE__);
295 esd = dynamic_cast<AliESDEvent*>(InputEvent());
298 fSelectionInfoESD |= AliAnalysisHelperJetTasks::kNone;
299 fEventCutInfoESD |= AliAnalysisHelperJetTasks::kNone;
301 Bool_t esdVtxValid = false;
302 Bool_t esdVtxIn = false;
303 Bool_t aodVtxValid = false;
304 Bool_t aodVtxIn = false;
307 Float_t run = (Float_t)esd->GetRunNumber();
308 const AliESDVertex *vtxESD = esd->GetPrimaryVertex();
310 esdVtxIn = IsVertexIn(vtxESD);
316 zvtx = vtxESD->GetZ();
317 yvtx = vtxESD->GetY();
318 xvtx = vtxESD->GetX();
324 // CKB this can be cleaned up a bit...
327 if(esd->GetFiredTriggerClasses().Contains("CINT1B")
328 ||esd->GetFiredTriggerClasses().Contains("CSMBB")
329 ||esd->GetFiredTriggerClasses().Contains("MB1")
330 ||esd->GetFiredTriggerClasses().Contains("CINT6B")){
332 fSelectionInfoESD |= AliAnalysisHelperJetTasks::kBunchBunch;
334 else if(esd->GetFiredTriggerClasses().Contains("CINT1A")
335 ||esd->GetFiredTriggerClasses().Contains("CSMBA")
336 ||esd->GetFiredTriggerClasses().Contains("CINT6A")
337 ||esd->GetFiredTriggerClasses().Contains("CINT1C")
338 ||esd->GetFiredTriggerClasses().Contains("CSMBC")
339 ||esd->GetFiredTriggerClasses().Contains("CINT6C")){
340 // empty bunch or bunch empty
342 fSelectionInfoESD |= AliAnalysisHelperJetTasks::kBunchEmpty;
344 else if(esd->GetFiredTriggerClasses().Contains("CINT1-E")
345 ||esd->GetFiredTriggerClasses().Contains("CINT6-E")){
347 fSelectionInfoESD |= AliAnalysisHelperJetTasks::kEmptyEmpty;
353 fh2ESDTriggerRun->Fill(run,iTrig+1);
354 if(vtxESD->GetNContributors()>2){
355 fh2ESDTriggerRun->Fill(run,iTrig+2);
356 fh2VtxXY->Fill(xvtx,yvtx);
361 Float_t r2 = xvtx *xvtx + yvtx *yvtx;
362 if(TMath::Abs(zvtx)<fVtxZCut&&r2<(fVtxRCut*fVtxRCut))fh2ESDTriggerRun->Fill(run,iTrig+3);
365 fh2ESDTriggerRun->Fill(run,0);
371 // Apply additional constraints
372 Bool_t esdEventSelected = IsEventSelected(esd);
373 Bool_t esdEventPileUp = IsEventPileUp(esd);
374 Bool_t esdEventCosmic = IsEventCosmic(esd);
376 Bool_t aodEventSelected = IsEventSelected(aod);
378 Bool_t physicsSelection = ((fInputHandler->IsEventSelected())&AliVEvent::kMB);
379 fEventCutInfoESD |= kPhysicsSelectionCut; // other alreay set via IsEventSelected
380 fh1EventCutInfoESD->Fill(fEventCutInfoESD);
384 if(esdEventSelected) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kVertexIn;
385 if(esdEventPileUp) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kIsPileUp;
386 if(esdEventCosmic) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kIsCosmic;
387 if(physicsSelection) fSelectionInfoESD |= AliAnalysisHelperJetTasks::kPhysicsSelection;
390 // here we have all selection information, fill histogram
391 for(unsigned int i = 1;i<(UInt_t)fh1SelectionInfoESD->GetNbinsX();i++){
392 if((i&fSelectionInfoESD)==i)fh1SelectionInfoESD->Fill(i);
394 AliAnalysisHelperJetTasks::SelectInfo(kTRUE,fSelectionInfoESD);
396 if(esd&&aod&&fDebug){
397 if(esdEventSelected&&!aodEventSelected){
398 Printf("%s:%d Different Selection for ESD and AOD",(char*)__FILE__,__LINE__);
399 const AliESDVertex *vtxESD = esd->GetPrimaryVertex();
400 const AliAODVertex *vtxAOD = aod->GetPrimaryVertex();
401 Printf("ESD Vtx %s %s %d",vtxESD->GetName(),vtxESD->GetTitle(),vtxESD->GetNContributors());
403 Printf("AOD Vtx %s %s %d",vtxAOD->GetName(),vtxAOD->GetTitle(),vtxAOD->GetNContributors());
408 // loop over all possible triggers for esd
411 const AliESDVertex *vtxESD = esd->GetPrimaryVertex();
412 // Printf(">> ESDvtx %s %s",vtxESD->GetName(),vtxESD->GetTitle());vtxESD->Print();
413 TString vtxName(vtxESD->GetName());
414 for(int it = AliAnalysisHelperJetTasks::kAcceptAll;it < AliAnalysisHelperJetTasks::kTrigger;it++){
415 Bool_t esdTrig = kFALSE;
416 esdTrig = AliAnalysisHelperJetTasks::IsTriggerFired(esd,(AliAnalysisHelperJetTasks::Trigger)it);
417 if(esdTrig)fh2ESDTriggerCount->Fill(it,kAllTriggered);
418 Bool_t cand = physicsSelection;
420 fh2ESDTriggerCount->Fill(it,kSelectedALICE);
422 if(!fUsePhysicsSelection)cand = AliAnalysisHelperJetTasks::IsTriggerFired(esd,AliAnalysisHelperJetTasks::kMB1);
423 if(vtxESD->GetNContributors()>2&&!vtxName.Contains("TPCVertex")){
424 if(esdTrig)fh2ESDTriggerCount->Fill(it,kTriggeredVertex);
425 Float_t zvtx = vtxESD->GetZ();
426 if(esdEventSelected&&esdTrig){
427 fh2ESDTriggerCount->Fill(it,kTriggeredVertexIn);
428 fh2ESDTriggerVtx->Fill(it,zvtx);
430 if(cand)fh2ESDTriggerCount->Fill(it,kSelectedALICEVertexValid);
432 if(cand&&esdEventSelected){
433 fh2ESDTriggerCount->Fill(it,kSelectedALICEVertexIn);
434 fh2ESDTriggerCount->Fill(it,kSelected);
435 AliAnalysisHelperJetTasks::Selected(kTRUE,kTRUE);// select this event
441 const AliAODVertex *vtxAOD = aod->GetPrimaryVertex();
442 aodVtxValid = IsVertexValid(vtxAOD);
443 aodVtxIn = IsVertexIn(vtxAOD);
445 for(int it = AliAnalysisHelperJetTasks::kAcceptAll;it < AliAnalysisHelperJetTasks::kTrigger;it++){
446 Bool_t aodTrig = kFALSE;
447 aodTrig = AliAnalysisHelperJetTasks::IsTriggerFired(aod,(AliAnalysisHelperJetTasks::Trigger)it);
448 Bool_t cand = aod->GetHeader()->GetOfflineTrigger()&AliVEvent::kMB;
449 if(aodTrig)fh2TriggerCount->Fill(it,kAllTriggered);
451 if(aodTrig)fh2TriggerCount->Fill(it,kTriggeredVertex);
452 Float_t zvtx = vtxAOD->GetZ();
453 if(cand&&aodEventSelected){
454 fh2TriggerCount->Fill(it,kSelected);
456 if(aodTrig&&aodEventSelected){
457 fh2TriggerVtx->Fill(it,zvtx);
458 fh2TriggerCount->Fill(it,kTriggeredVertexIn);
461 fh2TriggerCount->Fill(it,kSelectedALICEVertexValid);
462 if(aodEventSelected)fh2TriggerCount->Fill(it,kSelectedALICEVertexIn);
468 if (fDebug > 1)printf(" AliAnalysisTaskJetServices: Analysing event # %5d\n", (Int_t) fEntry);
472 Double_t nTrials = 1; // Trials for MC trigger
474 fh1Trials->Fill("#sum{ntrials}",fAvgTrials);
475 AliMCEvent* mcEvent = MCEvent();
476 // AliStack *pStack = 0;
478 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
480 nTrials = pythiaGenHeader->Trials();
481 ptHard = pythiaGenHeader->GetPtHard();
482 int iProcessType = pythiaGenHeader->ProcessType();
484 // 12 f+barf -> f+barf
489 if (fDebug > 10)Printf("%d iProcessType %d",__LINE__, iProcessType);
490 if(fDebug>20)AliAnalysisHelperJetTasks::PrintStack(mcEvent);
491 fh1PtHard->Fill(ptHard);
492 fh1PtHardTrials->Fill(ptHard,nTrials);
494 }// if pythia gen header
500 PostData(1, fHistList);
503 Bool_t AliAnalysisTaskJetServices::IsEventSelected(const AliESDEvent* esd){
504 if(!esd)return kFALSE;
505 const AliESDVertex *vtx = esd->GetPrimaryVertex();
506 return IsVertexIn(vtx); // vertex in calls vertex valid
510 Bool_t AliAnalysisTaskJetServices::IsEventSelected(const AliAODEvent* aod) const {
511 if(!aod)return kFALSE;
512 const AliAODVertex *vtx = aod->GetPrimaryVertex();
513 return IsVertexIn(vtx); // VertexIn calls VertexValid
516 Bool_t AliAnalysisTaskJetServices::IsVertexValid ( const AliESDVertex* vtx) {
518 // We can check the type of the vertex by its name and title
519 // if vertexer failed title is empty (default c'tor) and ncontributors is 0
521 // Tracks PrimaryVertex VertexerTracksNoConstraint
522 // Tracks PrimaryVertex VertexerTracksWithConstraint
523 // TPC TPCVertex VertexerTracksNoConstraint
524 // TPC TPCVertex VertexerTracksWithConstraint
525 // SPD SPDVertex vertexer: 3D
526 // SPD SPDVertex vertexer: Z
528 Int_t nCont = vtx->GetNContributors();
531 fEventCutInfoESD |= kContributorsCut1;
533 fEventCutInfoESD |= kContributorsCut2;
535 fEventCutInfoESD |= kContributorsCut3;
540 if(nCont<3)return kFALSE;
542 // do not want tpc only primary vertex
543 TString vtxName(vtx->GetName());
544 if(vtxName.Contains("TPCVertex")){
545 fEventCutInfoESD |= kVertexTPC;
548 if(vtxName.Contains("SPDVertex"))fEventCutInfoESD |= kVertexSPD;
549 if(vtxName.Contains("PrimaryVertex"))fEventCutInfoESD |= kVertexGlobal;
552 TString vtxTitle(vtx->GetTitle());
553 if(vtxTitle.Contains("vertexer: Z")){
554 if(vtx->GetDispersion()>0.02)return kFALSE;
556 fEventCutInfoESD |= kSPDDispersionCut;
561 Bool_t AliAnalysisTaskJetServices::IsVertexValid ( const AliAODVertex* vtx) const {
563 // We can check the type of the vertex by its name and title
564 // if vertexer failed title is empty (default c'tor) and ncontributors is 0
566 // Tracks PrimaryVertex VertexerTracksNoConstraint
567 // TPC TPCVertex VertexerTracksNoConstraint
568 // SPD SPDVertex vertexer: 3D
569 // SPD SPDVertex vertexer: Z
571 if(vtx->GetNContributors()<3)return kFALSE;
572 // do not want tpc only primary vertex
573 TString vtxName(vtx->GetName());
574 if(vtxName.Contains("TPCVertex"))return kFALSE;
576 // no dispersion yet...
578 TString vtxTitle(vtx->GetTitle());
579 if(vtxTitle.Contains("vertexer: Z")){
580 if(vtx->GetDispersion()>0.02)return kFALSE;
587 Bool_t AliAnalysisTaskJetServices::IsVertexIn (const AliESDVertex* vtx) {
589 if(!IsVertexValid(vtx))return kFALSE;
591 Float_t zvtx = vtx->GetZ();
592 Float_t yvtx = vtx->GetY();
593 Float_t xvtx = vtx->GetX();
601 if(TMath::Abs(zvtx)>fVtxZCut){
604 fEventCutInfoESD |= kVertexZCut;
605 Float_t r2 = yvtx*yvtx+xvtx*xvtx;
606 if(r2>(fVtxRCut*fVtxRCut)){
609 fEventCutInfoESD |= kVertexRCut;
614 Bool_t AliAnalysisTaskJetServices::IsVertexIn (const AliAODVertex* vtx) const {
616 if(!IsVertexValid(vtx))return kFALSE;
618 Float_t zvtx = vtx->GetZ();
619 Float_t yvtx = vtx->GetY();
620 Float_t xvtx = vtx->GetX();
626 Float_t r2 = yvtx*yvtx+xvtx*xvtx;
628 Bool_t vertexIn = TMath::Abs(zvtx)<fVtxZCut&&r2<(fVtxRCut*fVtxRCut);
632 Bool_t AliAnalysisTaskJetServices::IsEventPileUp(const AliESDEvent* esd) const{
633 if(!esd)return kFALSE;
634 return esd->IsPileupFromSPD();
637 Bool_t AliAnalysisTaskJetServices::IsEventCosmic(const AliESDEvent* esd) const {
638 if(!esd)return kFALSE;
639 // add track cuts for which we look for cosmics...
641 Bool_t isCosmic = kFALSE;
642 Int_t nTracks = esd->GetNumberOfTracks();
643 Int_t nCosmicCandidates = 0;
645 for (Int_t iTrack1 = 0; iTrack1 < nTracks; iTrack1++) {
646 AliESDtrack* track1 = (AliESDtrack*)esd->GetTrack(iTrack1);
647 if (!track1) continue;
648 UInt_t status1 = track1->GetStatus();
649 //If track is ITS stand alone track, skip the track
650 if (((status1 & AliESDtrack::kITSin) == 0 || (status1 & AliESDtrack::kTPCin))) continue;
651 if(track1->Pt()<fPtMinCosmic) continue;
652 //Start 2nd track loop to look for correlations
653 for (Int_t iTrack2 = iTrack1+1; iTrack2 < nTracks; iTrack2++) {
654 AliESDtrack* track2 = (AliESDtrack*)esd->GetTrack(iTrack2);
655 if(!track2) continue;
656 UInt_t status2 = track2->GetStatus();
657 //If track is ITS stand alone track, skip the track
658 if (((status2 & AliESDtrack::kITSin) == 0 || (status2 & AliESDtrack::kTPCin))) continue;
659 if(track2->Pt()<fPtMinCosmic) continue;
660 //Check if back-to-back
661 Double_t mom1[3],mom2[3];
662 track1->GetPxPyPz(mom1);
663 track2->GetPxPyPz(mom2);
664 TVector3 momv1(mom1[0],mom1[1],mom1[2]);
665 TVector3 momv2(mom2[0],mom2[1],mom2[2]);
666 Float_t theta = (float)(momv1.Phi()-momv2.Phi());
667 if(theta<-0.5*TMath::Pi()) theta+=2.*TMath::Pi();
669 Float_t deltaPhi = track1->Phi()-track2->Phi();
670 if(deltaPhi<-0.5*TMath::Pi()) deltaPhi+=2.*TMath::Pi();
672 Float_t rIsol = (float)(TMath::Sqrt( deltaPhi*deltaPhi+(track1->Eta()-track2->Eta())*(track1->Eta()-track2->Eta()) ));
673 if(rIsol<fRIsolMinCosmic) continue;
675 if(TMath::Abs(TMath::Pi()-theta)<fMaxCosmicAngle) {
676 nCosmicCandidates+=1;
683 fh1NCosmicsPerEvent->Fill((float)nCosmicCandidates);
691 void AliAnalysisTaskJetServices::Terminate(Option_t */*option*/)
693 // Terminate analysis