1 /**************************************************************************
2 * Copyright(c) 1998-1999, 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 **************************************************************************/
29 #include <TLorentzVector.h>
35 #include "AliAnalysisTaskUE.h"
36 #include "AliAnalysisManager.h"
37 #include "AliMCEventHandler.h"
38 #include "AliMCEvent.h"
39 #include "AliAODEvent.h"
40 #include "AliAODInputHandler.h"
41 #include "AliAODHandler.h"
43 #include "AliAODJet.h"
44 #include "AliAODTrack.h"
45 #include "AliAODMCParticle.h"
47 #include "AliGenPythiaEventHeader.h"
48 #include "AliAnalysisHelperJetTasks.h"
53 // Analysis class for Underlying Event studies
55 // Look for correlations on the tranverse regions to
56 // the leading charged jet
58 // This class needs as input AOD with track and Jets
59 // the output is a list of histograms
61 // AOD can be either connected to the InputEventHandler
62 // for a chain of AOD files
64 // to the OutputEventHandler
65 // for a chain of ESD files, so this case class should be
66 // in the train after the Jet finder
68 // Arian.Abrahantes.Quintana@cern.ch
69 // Ernesto.Lopez.Torres@cern.ch
73 ClassImp( AliAnalysisTaskUE)
75 ////////////////////////////////////////////////////////////////////////
78 //____________________________________________________________________
79 AliAnalysisTaskUE:: AliAnalysisTaskUE(const char* name):
80 AliAnalysisTask(name, ""),
90 fMaxJetPtInHist(300.),
91 fUseMCParticleBranch(kFALSE),
92 fConstrainDistance(kTRUE),
94 fSimulateChJetPt(kFALSE),
100 fAreaReg(1.5393), // Pi*0.7*0.7
101 fUseChPartJet(kFALSE),
102 fUseSingleCharge(kFALSE),
103 fUsePositiveCharge(kTRUE),
109 fJet2DeltaPhiCut(2.616), // 150 degrees
110 fJet2RatioPtCut(0.8),
118 fhRegionMultMin(0x0),
121 fhMinRegMaxPtPart(0x0),
122 fhMinRegSumPtvsMult(0x0),
123 fhdNdEtaPhiDist(0x0),
124 fhFullRegPartPtDistVsEt(0x0),
125 fhTransRegPartPtDistVsEt(0x0),
126 fhRegionSumPtMaxVsEt(0x0),
127 fhRegionMultMax(0x0),
128 fhRegionMultMaxVsEt(0x0),
129 fhRegionSumPtMinVsEt(0x0), //fhRegionMultMin(0x0),
130 fhRegionMultMinVsEt(0x0),
131 fhRegionAveSumPtVsEt(0x0),
132 fhRegionDiffSumPtVsEt(0x0),
133 fhRegionAvePartPtMaxVsEt(0x0),
134 fhRegionAvePartPtMinVsEt(0x0),
135 fhRegionMaxPartPtMaxVsEt(0x0),
138 fSettingsTree(0x0)//, fhValidRegion(0x0)
140 // Default constructor
141 // Define input and output slots here
142 // Input slot #0 works with a TChain
143 DefineInput(0, TChain::Class());
144 // Output slot #0 writes into a TList container
145 DefineOutput(0, TList::Class());
148 //______________________________________________________________
149 Bool_t AliAnalysisTaskUE::Notify()
152 // Implemented Notify() to read the cross sections
153 // and number of trials from pyxsec.root
154 // Copy from AliAnalysisTaskJFSystematics
156 TTree *tree = AliAnalysisManager::GetAnalysisManager()->GetTree();
157 Float_t xsection = 0;
160 TFile *curfile = tree->GetCurrentFile();
162 Error("Notify","No current file");
165 if(!fh1Xsec||!fh1Trials){
166 Printf("%s%d No Histogram fh1Xsec",(char*)__FILE__,__LINE__);
169 AliAnalysisHelperJetTasks::PythiaInfoFromFile(curfile->GetName(),xsection,ftrials);
170 fh1Xsec->Fill("<#sigma>",xsection);
171 // construct average trials
172 Float_t nEntries = (Float_t)tree->GetTree()->GetEntries();
173 if(ftrials>=nEntries)fAvgTrials = ftrials/nEntries;
179 //____________________________________________________________________
180 void AliAnalysisTaskUE::ConnectInputData(Option_t* /*option*/)
182 // Connect the input data
184 // We need AOD with tracks and jets.
185 // Since AOD can be either connected to the InputEventHandler (input chain fron AOD files)
186 // or to the OutputEventHandler ( AOD is create by a previus task in the train )
187 // we need to check where it is and get the pointer to AODEvent in the right way
189 // Delta AODs are also implemented
192 if (fDebug > 1) AliInfo("ConnectInputData() ");
194 TObject* handler = AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler();
196 if( handler && handler->InheritsFrom("AliAODInputHandler") ) { // input AOD
197 fAOD = ((AliAODInputHandler*)handler)->GetEvent();
198 if (fDebug > 1) AliInfo(" ==== Tracks from AliAODInputHandler");
199 // Case when jets are reconstructed on the fly from AOD tracks
200 // (the Jet Finder is using the AliJetAODReader) of InputEventHandler
201 // and put in the OutputEventHandler AOD. Useful whe you want to reconstruct jets with
202 // different parameters to default ones stored in the AOD or to use a different algorithm
204 handler = AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler();
205 if( handler && handler->InheritsFrom("AliAODHandler") ) {
206 fAODjets = ((AliAODHandler*)handler)->GetAOD();
207 if (fDebug > 1) AliInfo(" ==== Jets from AliAODHandler (on the fly)");
211 if (fDebug > 1) AliInfo(" ==== Jets from AliAODInputHandler");
213 } else { //output AOD
214 handler = AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler();
215 if( handler && handler->InheritsFrom("AliAODHandler") ) {
216 fAOD = ((AliAODHandler*)handler)->GetAOD();
218 if (fDebug > 1) AliInfo(" ==== Tracks and Jets from AliAODHandler");
220 AliFatal("I can't get any AOD Event Handler");
226 //____________________________________________________________________
227 void AliAnalysisTaskUE::CreateOutputObjects()
229 // Create the output container
231 if (fDebug > 1) AliInfo("CreateOutPutData()");
237 // fListOfHistos->SetOwner(kTRUE);
243 //____________________________________________________________________
244 void AliAnalysisTaskUE::Exec(Option_t */*option*/)
246 // Execute analysis for current event
248 if ( fDebug > 3 ) AliInfo( " Processing event..." );
249 // fetch the pythia header info and get the trials
250 AliMCEventHandler* mcHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
253 AliMCEvent* mcEvent = mcHandler->MCEvent();
255 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
257 nTrials = pythiaGenHeader->Trials();
261 fh1Trials->Fill("#sum{ntrials}",fAvgTrials);
265 PostData(0, fListOfHistos);
268 //____________________________________________________________________
269 void AliAnalysisTaskUE::AnalyseUE()
272 // Look for correlations on the tranverse regions to
273 // the leading charged jet
276 // ------------------------------------------------
277 // Find Leading Jets 1,2,3
278 // (could be skipped if Jets are sort by Pt...)
279 Double_t maxPtJet1 = 0.;
281 Double_t maxPtJet2 = 0.; // jet 2 need for back to back inclusive
283 Double_t maxPtJet3 = 0.; // jet 3 need for back to back exclusive
289 if( !fUseChPartJet ) {
293 if (fDebug > 1) AliInfo(" ==== Jets From Delta-AODs !");
294 if (fDebug > 1) AliInfo(Form(" ==== Reading Branch: %s ",fDeltaAODBranch.Data()));
296 (TClonesArray*)fAODjets->GetList()->FindObject(fDeltaAODBranch.Data());
298 AliFatal(" No jet-array! ");
301 nJets=fArrayJets->GetEntries();
303 if (fDebug > 1) AliInfo(" ==== Read Standard-AODs !");
304 nJets = fAODjets->GetNJets();
306 //printf("AOD %d jets \n", nJets);
308 for( Int_t i=0; i<nJets; ++i ) {
311 jet =(AliAODJet*)fArrayJets->At(i);
313 jet = fAODjets->GetJet(i);
315 Double_t jetPt = jet->Pt();//*1.666; // FIXME Jet Pt Correction ?????!!!
316 if( jetPt > maxPtJet1 ) {
317 maxPtJet3 = maxPtJet2; index3 = index2;
318 maxPtJet2 = maxPtJet1; index2 = index1;
319 maxPtJet1 = jetPt; index1 = i;
320 } else if( jetPt > maxPtJet2 ) {
321 maxPtJet3 = maxPtJet2; index3 = index2;
322 maxPtJet2 = jetPt; index2 = i;
323 } else if( jetPt > maxPtJet3 ) {
324 maxPtJet3 = jetPt; index3 = i;
330 jet =(AliAODJet*) fArrayJets->At(index1);
332 jet = fAODjets->GetJet(index1);
334 if(jet)jetVect[0].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
339 jet= (AliAODJet*) fArrayJets->At(index2);
341 jet= fAODjets->GetJet(index2);
343 if(jet)jetVect[1].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
348 jet= (AliAODJet*) fArrayJets->At(index3);
350 fAODjets->GetJet(index3);
352 if(jet)jetVect[2].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
357 // Use "Charged Particle Jets"
358 TObjArray* jets = FindChargedParticleJets();
360 nJets = jets->GetEntriesFast();
363 AliAODJet* jet = (AliAODJet*)jets->At(0);
364 maxPtJet1 = jet->Pt();
365 jetVect[0].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
369 AliAODJet* jet = (AliAODJet*)jets->At(1);
370 maxPtJet1 = jet->Pt();
371 jetVect[1].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
375 AliAODJet* jet = (AliAODJet*)jets->At(2);
376 maxPtJet1 = jet->Pt();
377 jetVect[2].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
386 fhNJets->Fill(nJets);
390 AliInfo("\n Skipping Event, not jet found...");
393 AliInfo(Form("\n Pt Leading Jet = %6.1f eta=%5.3f ", maxPtJet1, jetVect[0].Eta() ));
397 // ----------------------------------------------
398 // Cut events by jets topology
401 // - Jet1 |eta| < fJet1EtaCut
402 // 2 = back to back inclusive
404 // - |Jet1.Phi - Jet2.Phi| > fJet2DeltaPhiCut
405 // - Jet2.Pt/Jet1Pt > fJet2RatioPtCut
406 // 3 = back to back exclusive
408 // - Jet3.Pt < fJet3PtCut
410 if( index1 < 0 || TMath::Abs(jetVect[0].Eta()) > fJet1EtaCut) {
411 if( fDebug > 1 ) AliInfo("\n Skipping Event...Jet1 |eta| > fJet1EtaCut");
414 // back to back inclusive
415 if( fAnaType > 1 && index2 == -1 ) {
416 if( fDebug > 1 ) AliInfo("\n Skipping Event... no second Jet found");
419 if( fAnaType > 1 && index2 > -1 ) {
420 if( TMath::Abs(jetVect[0].DeltaPhi(jetVect[1])) < fJet2DeltaPhiCut ||
421 maxPtJet2/maxPtJet1 < fJet2RatioPtCut ) {
422 if( fDebug > 1 ) AliInfo("\n Skipping Event... |Jet1.Phi - Jet2.Phi| < fJet2DeltaPhiCut");
426 // back to back exclusive
427 if( fAnaType > 2 && index3 > -1 ) {
428 if( maxPtJet3 > fJet3PtCut ) {
429 if( fDebug > 1 ) AliInfo("\n Skipping Event... Jet3.Pt > fJet3PtCut ");
434 //fhEleadingPt->Fill( maxPtJet1 );
435 //Area for Normalization Purpose at Display histos
436 SetRegionArea(jetVect);
438 // ----------------------------------------------
439 // Find max and min regions
440 Double_t sumPtRegionPosit = 0.;
441 Double_t sumPtRegionNegat = 0.;
442 Double_t maxPartPtRegion = 0.;
443 Int_t nTrackRegionPosit = 0;
444 Int_t nTrackRegionNegat = 0;
445 static const Double_t k270rad = 270.*TMath::Pi()/180.;
447 if (!fUseMCParticleBranch){
448 fhEleadingPt->Fill( maxPtJet1 );
449 Int_t nTracks = fAOD->GetNTracks();
451 for (Int_t ipart=0; ipart<nTracks; ++ipart) {
453 AliAODTrack* part = fAOD->GetTrack( ipart );
454 if ( !part->TestFilterBit(fFilterBit) ) continue; // track cut selection
455 if (!part->IsPrimaryCandidate()) continue; // reject whatever is not linked to collision point
456 // PID Selection: Reject everything but hadrons
457 Bool_t isHadron = part->GetMostProbablePID()==AliAODTrack::kPion ||
458 part->GetMostProbablePID()==AliAODTrack::kKaon ||
459 part->GetMostProbablePID()==AliAODTrack::kProton;
460 if ( !isHadron ) continue;
462 if ( !part->Charge() ) continue; //Only charged
463 if ( fUseSingleCharge ) { // Charge selection
464 if ( fUsePositiveCharge && part->Charge() < 0.) continue; // keep Positives
465 if ( !fUsePositiveCharge && part->Charge() > 0.) continue; // keep Negatives
468 if ( part->Pt() < fTrackPtCut ) continue;
469 if( TMath::Abs(part->Eta()) > fTrackEtaCut ) continue;
471 TVector3 partVect(part->Px(), part->Py(), part->Pz());
473 Double_t deltaPhi = jetVect[0].DeltaPhi(partVect)+k270rad;
474 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
475 fhdNdEtaPhiDist->Fill( deltaPhi );
477 fhFullRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
479 Int_t region = IsTrackInsideRegion( jetVect, &partVect );
482 if( maxPartPtRegion < part->Pt() ) maxPartPtRegion = part->Pt();
483 sumPtRegionPosit += part->Pt();
485 fhTransRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
488 if( maxPartPtRegion < part->Pt() ) maxPartPtRegion = part->Pt();
489 sumPtRegionNegat += part->Pt();
491 fhTransRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
493 }//end loop AOD tracks
497 // this is the part we only use when we have MC information
498 // More than a test for values of it also resumes the reconstruction efficiency of jets
499 // As commented bellow if available for the data, we try to pair reconstructed jets with simulated ones
500 // afterwards we kept angular variables of MC jet to perform UE analysis over MC particles
501 // TODO: Handle Multiple jet environment. 06/2009 just suited for inclusive jet condition ( fAnaType = 1 )
503 AliMCEventHandler* mcHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
505 Printf("ERROR: Could not retrieve MC event handler");
509 AliMCEvent* mcEvent = mcHandler->MCEvent();
511 Printf("ERROR: Could not retrieve MC event");
514 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
515 if(!pythiaGenHeader){
519 //Get Jets from MC header
520 Int_t nPythiaGenJets = pythiaGenHeader->NTriggerJets();
521 AliAODJet pythiaGenJets[4];
522 TVector3 jetVectnew[4];
524 for(int ip = 0;ip < nPythiaGenJets;++ip){
527 pythiaGenHeader->TriggerJet(ip,p);
528 TVector3 tempVect(p[0],p[1],p[2]);
529 if ( TMath::Abs(tempVect.Eta())>fJet1EtaCut ) continue;
530 pythiaGenJets[iCount].SetPxPyPzE(p[0],p[1],p[2],p[3]);
531 jetVectnew[iCount].SetXYZ(pythiaGenJets[iCount].Px(), pythiaGenJets[iCount].Py(), pythiaGenJets[iCount].Pz());
535 if (!iCount) return;// no jet in eta acceptance
537 //Search the index of the nearest MC jet to the leading jet reconstructed from the input data
539 if (fConstrainDistance){
542 for (Int_t i=0; i<iCount; i++){
544 dRTemp = jetVectnew[i].DeltaR(jetVect[0]);
547 deltaR = jetVectnew[i].DeltaR(jetVect[0]);
548 if (deltaR < dRTemp){
554 if (jetVectnew[index].DeltaR(jetVect[0]) > fMinDistance) return;
556 //Let's add some taste to jet and simulate pt of charged alone
557 //eta and phi are kept as original
558 //Play a Normal Distribution
560 if (fSimulateChJetPt){
562 random = gRandom->Gaus(0.6,0.25);
563 if (random > 0. && random < 1. &&
564 (random * jetVectnew[index].Pt()>6.)) break;
568 //Set new Pt & Fill histogram accordingly
569 maxPtJet1 = random * jetVectnew[index].Pt();
572 fhEleadingPt->Fill( maxPtJet1 );
574 if (fUseAliStack){//Try Stack Information to perform UE analysis
576 AliStack* mcStack = mcEvent->Stack();//Load Stack
577 Int_t nTracksMC = mcStack->GetNtrack();
578 for (Int_t iTracks = 0; iTracks < nTracksMC; iTracks++) {
580 if(!(mcStack->IsPhysicalPrimary(iTracks))) continue;
582 TParticle* mctrk = mcStack->Particle(iTracks);
584 Double_t charge = mctrk->GetPDG()->Charge();
585 if (charge == 0) continue;
587 if ( fUseSingleCharge ) { // Charge selection
588 if ( fUsePositiveCharge && charge < 0.) continue; // keep Positives
589 if ( !fUsePositiveCharge && charge > 0.) continue; // keep Negatives
592 //Kinematics cuts on particle
593 if ((mctrk->Pt() < fTrackPtCut) || (TMath::Abs(mctrk->Eta()) > fTrackEtaCut )) continue;
595 Bool_t isHadron = TMath::Abs(mctrk->GetPdgCode())==211 ||
596 TMath::Abs(mctrk->GetPdgCode())==2212 ||
597 TMath::Abs(mctrk->GetPdgCode())==321;
599 if (!isHadron) continue;
601 TVector3 partVect(mctrk->Px(), mctrk->Py(), mctrk->Pz());
603 Double_t deltaPhi = jetVectnew[index].DeltaPhi(partVect)+k270rad;
604 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
605 fhdNdEtaPhiDist->Fill( deltaPhi );
607 fhFullRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
609 //We are not interested on stack organization but don't loose track of info
610 TVector3 tempVector = jetVectnew[0];
611 jetVectnew[0] = jetVectnew[index];
612 jetVectnew[index] = tempVector;
614 Int_t region = IsTrackInsideRegion( jetVectnew, &partVect );
617 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
618 sumPtRegionPosit += mctrk->Pt();
620 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
623 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
624 sumPtRegionNegat += mctrk->Pt();
626 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
628 } // end loop stack Particles
630 }else{//Try mc Particle
632 TClonesArray* farray = (TClonesArray*)fAOD->FindListObject("mcparticles");
634 Int_t ntrks = farray->GetEntries();
635 if (fDebug>1) AliInfo(Form("In UE MC analysis tracks %d \n",ntrks));
636 for(Int_t i =0 ; i < ntrks; i++){
637 AliAODMCParticle* mctrk = (AliAODMCParticle*)farray->At(i);
639 if (!(mctrk->IsPhysicalPrimary())) continue;
640 //if (!(mctrk->IsPrimary())) continue;
642 if (mctrk->Charge() == 0 || mctrk->Charge()==-99) continue;
644 if (mctrk->Pt() < fTrackPtCut ) continue;
645 if( TMath::Abs(mctrk->Eta()) > fTrackEtaCut ) continue;
647 Bool_t isHadron = TMath::Abs(mctrk->GetPdgCode())==211 ||
648 TMath::Abs(mctrk->GetPdgCode())==2212 ||
649 TMath::Abs(mctrk->GetPdgCode())==321;
651 if (!isHadron) continue;
653 TVector3 partVect(mctrk->Px(), mctrk->Py(), mctrk->Pz());
655 Double_t deltaPhi = jetVectnew[index].DeltaPhi(partVect)+k270rad;
656 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
657 fhdNdEtaPhiDist->Fill( deltaPhi );
659 fhFullRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
661 //We are not interested on stack organization but don't loose track of info
662 TVector3 tempVector = jetVectnew[0];
663 jetVectnew[0] = jetVectnew[index];
664 jetVectnew[index] = tempVector;
666 Int_t region = IsTrackInsideRegion( jetVectnew, &partVect );
669 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
670 sumPtRegionPosit += mctrk->Pt();
672 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
675 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
676 sumPtRegionNegat += mctrk->Pt();
678 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
681 }//end loop AliAODMCParticle tracks
684 //How quantities will be sorted before Fill Min and Max Histogram
685 // 1=Plots will be CDF-like
686 // 2=Plots will be Marchesini-like
687 if( fOrdering == 1 ) {
688 if( sumPtRegionPosit > sumPtRegionNegat ) {
689 FillSumPtRegion( maxPtJet1, sumPtRegionPosit/fAreaReg, sumPtRegionNegat/fAreaReg );
691 FillSumPtRegion( maxPtJet1, sumPtRegionNegat/fAreaReg, sumPtRegionPosit/fAreaReg );
693 if (nTrackRegionPosit > nTrackRegionNegat ) {
694 FillMultRegion( maxPtJet1, nTrackRegionPosit/fAreaReg, nTrackRegionNegat/fAreaReg, sumPtRegionNegat/fAreaReg );
696 FillMultRegion( maxPtJet1, nTrackRegionNegat/fAreaReg, nTrackRegionPosit/fAreaReg, sumPtRegionPosit/fAreaReg );
698 } else if( fOrdering == 2 ) {
699 if (sumPtRegionPosit > sumPtRegionNegat) {
700 FillSumPtRegion( maxPtJet1, sumPtRegionPosit/fAreaReg, sumPtRegionNegat/fAreaReg );
701 FillMultRegion( maxPtJet1, nTrackRegionPosit/fAreaReg, nTrackRegionNegat/fAreaReg, sumPtRegionNegat/fAreaReg );
703 FillSumPtRegion( maxPtJet1, sumPtRegionNegat/fAreaReg, sumPtRegionPosit/fAreaReg );
704 FillMultRegion( maxPtJet1, nTrackRegionNegat/fAreaReg, nTrackRegionPosit/fAreaReg, sumPtRegionPosit/fAreaReg );
708 Double_t avePosRegion = (nTrackRegionPosit) ? sumPtRegionPosit/nTrackRegionPosit : 0.;
709 Double_t aveNegRegion = (nTrackRegionNegat) ? sumPtRegionNegat/nTrackRegionNegat : 0.;
710 if( avePosRegion > aveNegRegion ) {
711 FillAvePartPtRegion( maxPtJet1, avePosRegion/fAreaReg, aveNegRegion/fAreaReg );
713 FillAvePartPtRegion( maxPtJet1, aveNegRegion/fAreaReg, avePosRegion/fAreaReg );
716 fhRegionMaxPartPtMaxVsEt->Fill(maxPtJet1, maxPartPtRegion );
718 // Compute pedestal like magnitudes
719 fhRegionDiffSumPtVsEt->Fill(maxPtJet1, TMath::Abs(sumPtRegionPosit-sumPtRegionNegat)/(2.0*fAreaReg));
720 fhRegionAveSumPtVsEt->Fill(maxPtJet1, (sumPtRegionPosit+sumPtRegionNegat)/(2.0*fAreaReg));
724 //____________________________________________________________________
725 void AliAnalysisTaskUE::FillSumPtRegion( Double_t leadingE, Double_t ptMax, Double_t ptMin )
727 // Fill sumPt of control regions
730 fhRegionSumPtMaxVsEt->Fill( leadingE, ptMax );
732 fhRegionSumPtMinVsEt->Fill( leadingE, ptMin );
733 // MAke distributions for UE comparison with MB data
734 fhMinRegSumPt->Fill(ptMin);
737 //____________________________________________________________________
738 void AliAnalysisTaskUE::FillAvePartPtRegion( Double_t leadingE, Double_t ptMax, Double_t ptMin )
740 // Fill average particle Pt of control regions
743 fhRegionAvePartPtMaxVsEt->Fill( leadingE, ptMax );
745 fhRegionAvePartPtMinVsEt->Fill( leadingE, ptMin );
746 // MAke distributions for UE comparison with MB data
747 fhMinRegAvePt->Fill(ptMin);
750 //____________________________________________________________________
751 void AliAnalysisTaskUE::FillMultRegion( Double_t leadingE, Double_t nTrackPtmax, Double_t nTrackPtmin, Double_t ptMin )
753 // Fill Nch multiplicity of control regions
756 fhRegionMultMaxVsEt->Fill( leadingE, nTrackPtmax );
757 fhRegionMultMax->Fill( nTrackPtmax );
759 fhRegionMultMinVsEt->Fill( leadingE, nTrackPtmin );
760 fhRegionMultMin->Fill( nTrackPtmin );
761 // MAke distributions for UE comparison with MB data
762 fhMinRegSumPtvsMult->Fill(nTrackPtmin,ptMin);
765 //____________________________________________________________________
766 Int_t AliAnalysisTaskUE::IsTrackInsideRegion(TVector3 *jetVect, TVector3 *partVect)
768 // return de region in delta phi
769 // -1 negative delta phi
770 // 1 positive delta phi
772 static const Double_t k60rad = 60.*TMath::Pi()/180.;
773 static const Double_t k120rad = 120.*TMath::Pi()/180.;
776 if( fRegionType == 1 ) {
777 if( TMath::Abs(partVect->Eta()) > fTrackEtaCut ) return 0;
778 // transverse regions
779 if (jetVect[0].DeltaPhi(*partVect) < -k60rad && jetVect[0].DeltaPhi(*partVect) > -k120rad ) region = -1;
780 if (jetVect[0].DeltaPhi(*partVect) > k60rad && jetVect[0].DeltaPhi(*partVect) < k120rad ) region = 1;
782 } else if( fRegionType == 2 ) {
784 Double_t deltaR = 0.;
786 TVector3 positVect,negatVect;
787 if (fConePosition==1){
788 positVect.SetMagThetaPhi(1, 2.*atan(exp(-jetVect[0].Eta())), jetVect[0].Phi()+TMath::PiOver2());
789 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-jetVect[0].Eta())), jetVect[0].Phi()-TMath::PiOver2());
790 }else if (fConePosition==2){
791 if(fAnaType<2) AliFatal("Prevent error in Analysis type there might be only 1 jet. To avoid overflow better Correct UE config");
792 positVect.SetMagThetaPhi(1, 2.*atan(exp(-(jetVect[0].Eta()+jetVect[1].Eta())/2.)), jetVect[0].Phi()+TMath::PiOver2());
793 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-(jetVect[0].Eta()+jetVect[1].Eta())/2.)), jetVect[0].Phi()-TMath::PiOver2());
794 }else if (fConePosition==3){
795 if(fAnaType<2) AliFatal("Prevent error in Analysis type there might be only 1 jet. To avoid overflow better Correct UE config");
796 Double_t weightEta = jetVect[0].Eta() * jetVect[0].Pt()/(jetVect[0].Pt() + jetVect[1].Pt()) +
797 jetVect[1].Eta() * jetVect[1].Pt()/(jetVect[0].Pt() + jetVect[1].Pt());
798 //Double_t weightEta = jetVect[0].Eta() * jetVect[0].Mag()/(jetVect[0].Mag() + jetVect[1].Mag()) +
799 // jetVect[1].Eta() * jetVect[1].Mag()/(jetVect[0].Mag() + jetVect[1].Mag());
800 positVect.SetMagThetaPhi(1, 2.*atan(exp(-weightEta)), jetVect[0].Phi()+TMath::PiOver2());
801 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-weightEta)), jetVect[0].Phi()-TMath::PiOver2());
803 if (TMath::Abs(positVect.DeltaPhi(*partVect)) < fConeRadius ) {
805 deltaR = positVect.DrEtaPhi(*partVect);
806 } else if (TMath::Abs(negatVect.DeltaPhi(*partVect)) < fConeRadius) {
808 deltaR = negatVect.DrEtaPhi(*partVect);
811 if (deltaR > fConeRadius) region = 0;
814 AliError("Unknow region type");
816 // For debug (to be removed)
817 //if( region != 0 ) fhValidRegion->Fill( partVect->Eta()-jetVect[0].Eta(), jetVect[0].DeltaPhi(*partVect) );
823 //____________________________________________________________________
824 TObjArray* AliAnalysisTaskUE::FindChargedParticleJets()
826 // Return a TObjArray of "charged particle jets"
828 // Charged particle jet definition from reference:
830 // "Charged jet evolution and the underlying event
831 // in proton-antiproton collisions at 1.8 TeV"
832 // PHYSICAL REVIEW D 65 092002, CDF Collaboration
834 // We define "jets" as circular regions in eta-phi space with
835 // radius defined by R = sqrt( (eta-eta0)^2 +(phi-phi0)^2 ).
836 // Our jet algorithm is as follows:
837 // 1- Order all charged particles according to their pT .
838 // 2- Start with the highest pT particle and include in the jet all
839 // particles within the radius R=0.7 considering each particle
840 // in the order of decreasing pT and recalculating the centroid
841 // of the jet after each new particle is added to the jet .
842 // 3- Go to the next highest pT particle not already included in
843 // a jet and add to the jet all particles not already included in
844 // a jet within R=0.7.
845 // 4- Continue until all particles are in a jet.
846 // We define the transverse momentum of the jet to be
847 // the scalar pT sum of all the particles within the jet, where pT
848 // is measured with respect to the beam axis
850 // 1 - Order all charged particles according to their pT .
851 Int_t nTracks = fAOD->GetNTracks();
852 if( !nTracks ) return 0;
853 TObjArray tracks(nTracks);
855 for (Int_t ipart=0; ipart<nTracks; ++ipart) {
856 AliAODTrack* part = fAOD->GetTrack( ipart );
857 if( !part->TestFilterBit(fFilterBit) ) continue; // track cut selection
858 if( !part->Charge() ) continue;
859 if( part->Pt() < fTrackPtCut ) continue;
860 tracks.AddLast(part);
862 QSortTracks( tracks, 0, tracks.GetEntriesFast() );
864 nTracks = tracks.GetEntriesFast();
865 if( !nTracks ) return 0;
866 TObjArray *jets = new TObjArray(nTracks);
867 TIter itrack(&tracks);
869 // 2- Start with the highest pT particle ...
871 AliAODTrack* track = (AliAODTrack*)itrack.Next();
872 if( !track ) continue;
876 pt = track->Pt(); // Use the energy member to store Pt
877 jets->AddLast( new TLorentzVector(px, py, pz, pt) );
878 tracks.Remove( track );
879 TLorentzVector* jet = (TLorentzVector*)jets->Last();
880 // 3- Go to the next highest pT particle not already included...
882 while ( (track1 = (AliAODTrack*)(itrack.Next())) ) {
883 Double_t dphi = TVector2::Phi_mpi_pi(jet->Phi()-track1->Phi());
884 Double_t r = TMath::Sqrt( (jet->Eta()-track1->Eta())*(jet->Eta()-track1->Eta()) +
886 if( r < fConeRadius ) {
887 Double_t fPt = jet->E()+track1->Pt(); // Scalar sum of Pt
888 // recalculating the centroid
889 Double_t eta = jet->Eta()*jet->E()/fPt + track1->Eta()*track1->Pt()/fPt;
890 Double_t phi = jet->Phi()*jet->E()/fPt + track1->Phi()*track1->Pt()/fPt;
891 jet->SetPtEtaPhiE( 1., eta, phi, fPt );
892 tracks.Remove( track1 );
897 nTracks = tracks.GetEntries();
898 // 4- Continue until all particles are in a jet.
900 } // end while nTracks
902 // Convert to AODjets....
903 Int_t njets = jets->GetEntriesFast();
904 TObjArray* aodjets = new TObjArray(njets);
905 aodjets->SetOwner(kTRUE);
906 for(Int_t ijet=0; ijet<njets; ++ijet) {
907 TLorentzVector* jet = (TLorentzVector*)jets->At(ijet);
908 if (jet->E() < fChJetPtMin) continue;
909 Float_t px, py,pz,en; // convert to 4-vector
910 px = jet->E() * TMath::Cos(jet->Phi()); // Pt * cos(phi)
911 py = jet->E() * TMath::Sin(jet->Phi()); // Pt * sin(phi)
912 pz = jet->E() / TMath::Tan(2.0 * TMath::ATan(TMath::Exp(-jet->Eta())));
913 en = TMath::Sqrt(px * px + py * py + pz * pz);
914 aodjets->AddLast( new AliAODJet(px, py, pz, en) );
916 // Order jets according to their pT .
917 QSortTracks( *aodjets, 0, aodjets->GetEntriesFast() );
920 if (fDebug>3) AliInfo(Form(" %d Charged jets found\n",njets));
925 //____________________________________________________________________
926 void AliAnalysisTaskUE::QSortTracks(TObjArray &a, Int_t first, Int_t last)
928 // Sort array of TObjArray of tracks by Pt using a quicksort algorithm.
931 static int i; // "static" to save stack space
934 while (last - first > 1) {
938 while (++i < last && ((AliVParticle*)a[i])->Pt() > ((AliVParticle*)a[first])->Pt() )
940 while (--j > first && ((AliVParticle*)a[j])->Pt() < ((AliVParticle*)a[first])->Pt() )
956 if (j - first < last - (j + 1)) {
957 QSortTracks(a, first, j);
958 first = j + 1; // QSortTracks(j + 1, last);
960 QSortTracks(a, j + 1, last);
961 last = j; // QSortTracks(first, j);
966 //____________________________________________________________________
967 void AliAnalysisTaskUE::SetRegionArea(TVector3 *jetVect)
969 Double_t fAreaCorrFactor=0.;
970 Double_t deltaEta = 0.;
971 if (fRegionType==1) fAreaReg = 2.*fTrackEtaCut*60.*TMath::Pi()/180.;
972 else if (fRegionType==2){
973 deltaEta = 0.9-TMath::Abs(jetVect[0].Eta());
974 if (deltaEta>fConeRadius) fAreaReg = TMath::Pi()*fConeRadius*fConeRadius;
976 fAreaCorrFactor = fConeRadius*fConeRadius*TMath::ACos(deltaEta/fConeRadius) -
977 (deltaEta*fConeRadius)*TMath::Sqrt( 1. - deltaEta*deltaEta/(fConeRadius*fConeRadius));
978 fAreaReg=TMath::Pi()*fConeRadius*fConeRadius-fAreaCorrFactor;
980 }else AliWarning("Unknown Rgion Type");
981 if (fDebug>10) AliInfo(Form("\n dEta=%5.3f Angle =%5.3f Region Area = %5.3f Corr Factor=%5.4f \n",deltaEta,TMath::ACos(deltaEta/fConeRadius),fAreaReg,fAreaCorrFactor));
984 //____________________________________________________________________
985 void AliAnalysisTaskUE::CreateHistos()
987 fListOfHistos = new TList();
990 fhNJets = new TH1F("fhNJets", "n Jet", 10, 0, 10);
991 fhNJets->SetXTitle("# of jets");
993 fListOfHistos->Add( fhNJets ); // At(0)
995 fhEleadingPt = new TH1F("hEleadingPt", "Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
996 fhEleadingPt->SetXTitle("P_{T} (GeV/c)");
997 fhEleadingPt->SetYTitle("dN/dP_{T}");
998 fhEleadingPt->Sumw2();
999 fListOfHistos->Add( fhEleadingPt ); // At(1)
1001 fhMinRegPtDist = new TH1F("hMinRegPtDist", "P_{T} distribution in Min zone", 50,0.,20.);
1002 fhMinRegPtDist->SetXTitle("P_{T} (GeV/c)");
1003 fhMinRegPtDist->SetYTitle("dN/dP_{T}");
1004 fhMinRegPtDist->Sumw2();
1005 fListOfHistos->Add( fhMinRegPtDist ); // At(2)
1007 fhRegionMultMin = new TH1F("hRegionMultMin", "N_{ch}^{90, min}", 21, -0.5, 20.5);
1008 fhRegionMultMin->SetXTitle("N_{ch tracks}");
1009 fhRegionMultMin->Sumw2();
1010 fListOfHistos->Add( fhRegionMultMin ); // At(3)
1012 fhMinRegAvePt = new TH1F("hMinRegAvePt", "#LTp_{T}#GT", 50, 0., 20.);
1013 fhMinRegAvePt->SetXTitle("P_{T} (GeV/c)");
1014 fhMinRegAvePt->Sumw2();
1015 fListOfHistos->Add( fhMinRegAvePt ); // At(4)
1017 fhMinRegSumPt = new TH1F("hMinRegSumPt", "#Sigma p_{T} ", 50, 0., 20.);
1018 fhMinRegSumPt->SetYTitle("Ed^{3}N_{tracks}/dp^{3} (c^{3}/GeV^{2})");
1019 fhMinRegSumPt->SetXTitle("#Sigma p_{T} (GeV/c)");
1020 fhMinRegSumPt->Sumw2();
1021 fListOfHistos->Add( fhMinRegSumPt ); // At(5)
1023 fhMinRegMaxPtPart = new TH1F("hMinRegMaxPtPart", "max(p_{T})|_{event} ", 50, 0., 20.);
1024 fhMinRegMaxPtPart->SetYTitle("Ed^{3}N_{tracks}/dp^{3} (c^{3}/GeV^{2})");
1025 fhMinRegMaxPtPart->SetXTitle("p_{T} (GeV/c)");
1026 fhMinRegMaxPtPart->Sumw2();
1027 fListOfHistos->Add( fhMinRegMaxPtPart ); // At(6)
1029 fhMinRegSumPtvsMult = new TH1F("hMinRegSumPtvsMult", "#Sigma p_{T} vs. Multiplicity ", 21, -0.5, 20.5);
1030 fhMinRegSumPtvsMult->SetYTitle("#Sigma p_{T} (GeV/c)");
1031 fhMinRegSumPtvsMult->SetXTitle("N_{charge}");
1032 fhMinRegSumPtvsMult->Sumw2();
1033 fListOfHistos->Add( fhMinRegSumPtvsMult ); // At(7);
1035 fhdNdEtaPhiDist = new TH1F("hdNdEtaPhiDist", "Charge particle density |#eta|< 1 vs #Delta#phi", 120, 0., 2.*TMath::Pi());
1036 fhdNdEtaPhiDist->SetXTitle("#Delta#phi");
1037 fhdNdEtaPhiDist->SetYTitle("dN_{ch}/d#etad#phi");
1038 fhdNdEtaPhiDist->Sumw2();
1039 fListOfHistos->Add( fhdNdEtaPhiDist ); // At(8)
1041 // Can be use to get part pt distribution for differente Jet Pt bins
1042 fhFullRegPartPtDistVsEt = new TH2F("hFullRegPartPtDistVsEt", "dN/dP_{T} |#eta|<1 vs Leading Jet P_{T}",
1043 50,0.,50., fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1044 fhFullRegPartPtDistVsEt->SetYTitle("Leading Jet P_{T}");
1045 fhFullRegPartPtDistVsEt->SetXTitle("p_{T}");
1046 fhFullRegPartPtDistVsEt->Sumw2();
1047 fListOfHistos->Add( fhFullRegPartPtDistVsEt ); // At(9)
1049 // Can be use to get part pt distribution for differente Jet Pt bins
1050 fhTransRegPartPtDistVsEt = new TH2F("hTransRegPartPtDistVsEt", "dN/dP_{T} in tranvese regions |#eta|<1 vs Leading Jet P_{T}",
1051 50,0.,50., fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1052 fhTransRegPartPtDistVsEt->SetYTitle("Leading Jet P_{T}");
1053 fhTransRegPartPtDistVsEt->SetXTitle("p_{T}");
1054 fhTransRegPartPtDistVsEt->Sumw2();
1055 fListOfHistos->Add( fhTransRegPartPtDistVsEt ); // At(10)
1058 fhRegionSumPtMaxVsEt = new TH1F("hRegionSumPtMaxVsEt", "P_{T}^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1059 fhRegionSumPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1060 fhRegionSumPtMaxVsEt->Sumw2();
1061 fListOfHistos->Add( fhRegionSumPtMaxVsEt ); // At(11)
1063 fhRegionSumPtMinVsEt = new TH1F("hRegionSumPtMinVsEt", "P_{T}^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1064 fhRegionSumPtMinVsEt->SetXTitle("P_{T} (GeV/c)");
1065 fhRegionSumPtMinVsEt->Sumw2();
1066 fListOfHistos->Add( fhRegionSumPtMinVsEt ); // At(12)
1068 fhRegionMultMax = new TH1I("hRegionMultMax", "N_{ch}^{90, max}", 21, -0.5, 20.5);
1069 fhRegionMultMax->SetXTitle("N_{ch tracks}");
1070 fhRegionMultMax->Sumw2();
1071 fListOfHistos->Add( fhRegionMultMax ); // At(13)
1073 fhRegionMultMaxVsEt = new TH1F("hRegionMultMaxVsEt", "N_{ch}^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1074 fhRegionMultMaxVsEt->SetXTitle("E (GeV hRegionAveSumPtVsEt/c)");
1075 fhRegionMultMaxVsEt->Sumw2();
1076 fListOfHistos->Add( fhRegionMultMaxVsEt ); // At(14)
1078 fhRegionMultMinVsEt = new TH1F("hRegionMultMinVsEt", "N_{ch}^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1079 fhRegionMultMinVsEt->SetXTitle("E (GeV/c)");
1080 fhRegionMultMinVsEt->Sumw2();
1081 fListOfHistos->Add( fhRegionMultMinVsEt ); // At(15)
1083 fhRegionAveSumPtVsEt = new TH1F("hRegionAveSumPtVsEt", "(P_{T}^{90, max} + P_{T}^{90, min})/2 vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1084 fhRegionAveSumPtVsEt->SetXTitle("P_{T} (GeV/c)");
1085 fhRegionAveSumPtVsEt->Sumw2();
1086 fListOfHistos->Add( fhRegionAveSumPtVsEt ); // At(16)
1088 fhRegionDiffSumPtVsEt= new TH1F("hRegionPtDiffVsEt", "(P_{T}^{90, max} - P_{T}^{90, min}) vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1089 fhRegionDiffSumPtVsEt->SetXTitle("P_{T} (GeV/c)");
1090 fhRegionDiffSumPtVsEt->Sumw2();
1091 fListOfHistos->Add( fhRegionDiffSumPtVsEt ); // At(17)
1093 fhRegionAvePartPtMaxVsEt = new TH1F("hRegionAvePartPtMaxVsEt", "#LTp_{T}#GT^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1094 fhRegionAvePartPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1095 fhRegionAvePartPtMaxVsEt->Sumw2();
1096 fListOfHistos->Add( fhRegionAvePartPtMaxVsEt ); // At(18)
1098 fhRegionAvePartPtMinVsEt = new TH1F("hRegionAvePartPtMinVsEt", "#LTp_{T}#GT^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1099 fhRegionAvePartPtMinVsEt->SetXTitle("P_{T} (GeV/c)");
1100 fhRegionAvePartPtMinVsEt->Sumw2();
1101 fListOfHistos->Add( fhRegionAvePartPtMinVsEt ); // At(19)
1103 fhRegionMaxPartPtMaxVsEt = new TH1F("hRegionMaxPartPtMaxVsEt", "max(p_{T})^{90} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1104 fhRegionMaxPartPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1105 fhRegionMaxPartPtMaxVsEt->Sumw2();
1106 fListOfHistos->Add( fhRegionMaxPartPtMaxVsEt ); // At(20)
1108 fh1Xsec = new TProfile("fh1Xsec","xsec from pyxsec.root",1,0,1);
1109 fh1Xsec->GetXaxis()->SetBinLabel(1,"<#sigma>");
1111 fListOfHistos->Add( fh1Xsec ); //At(21)
1113 fh1Trials = new TH1F("fh1Trials","trials from pyxsec.root",1,0,1);
1114 fh1Trials->GetXaxis()->SetBinLabel(1,"#sum{ntrials}");
1116 fListOfHistos->Add( fh1Trials ); //At(22)
1118 fSettingsTree = new TTree("UEAnalysisSettings","Analysis Settings in UE estimation");
1119 fSettingsTree->Branch("fConeRadius", &fConeRadius,"Rad/D");
1120 fSettingsTree->Branch("fJet1EtaCut", &fJet1EtaCut, "LeadJetEtaCut/D");
1121 fSettingsTree->Branch("fJet2DeltaPhiCut", &fJet2DeltaPhiCut, "DeltaPhi/D");
1122 fSettingsTree->Branch("fJet2RatioPtCut", &fJet2RatioPtCut, "Jet2Ratio/D");
1123 fSettingsTree->Branch("fJet3PtCut", &fJet3PtCut, "Jet3PtCut/D");
1124 fSettingsTree->Branch("fTrackPtCut", &fTrackPtCut, "TrackPtCut/D");
1125 fSettingsTree->Branch("fTrackEtaCut", &fTrackEtaCut, "TrackEtaCut/D");
1126 fSettingsTree->Branch("fAnaType", &fAnaType, "Ana/I");
1127 fSettingsTree->Branch("fRegionType", &fRegionType,"Reg/I");
1128 fSettingsTree->Branch("fOrdering", &fOrdering,"OrderMeth/I");
1129 fSettingsTree->Branch("fUseChPartJet", &fUseChPartJet,"UseChPart/O");
1130 fSettingsTree->Branch("fUseSingleCharge", &fUseSingleCharge,"UseSingleCh/O");
1131 fSettingsTree->Branch("fUsePositiveCharge", &fUsePositiveCharge,"UsePositiveCh/O");
1132 fSettingsTree->Fill();
1135 fListOfHistos->Add( fSettingsTree ); // At(23)
1138 // For debug region selection
1139 fhValidRegion = new TH2F("hValidRegion", "dN/d#eta/d#phi",
1140 20, -2.,2., 62, -TMath::Pi(), TMath::Pi());
1141 fhValidRegion->SetYTitle("#Delta#phi");
1142 fhValidRegion->Sumw2();
1143 fListOfHistos->Add( fhValidRegion ); // At(15)
1147 //____________________________________________________________________
1148 void AliAnalysisTaskUE::Terminate(Option_t */*option*/)
1150 // Terminate analysis
1153 //Save Analysis Settings
1156 // Normalize histos to region area TODO:
1157 // Normalization done at Analysis, taking into account
1158 // area variations on per-event basis (cone case)
1160 // Draw some Test plot to the screen
1161 if (!gROOT->IsBatch()) {
1163 // Update pointers reading them from the output slot
1164 fListOfHistos = dynamic_cast<TList*> (GetOutputData(0));
1165 if( !fListOfHistos ) {
1166 AliError("Histogram List is not available");
1169 fhEleadingPt = (TH1F*)fListOfHistos->At(1);
1170 fhdNdEtaPhiDist = (TH1F*)fListOfHistos->At(8);
1171 fhRegionSumPtMaxVsEt = (TH1F*)fListOfHistos->At(11);
1172 fhRegionSumPtMinVsEt = (TH1F*)fListOfHistos->At(12);
1173 fhRegionMultMaxVsEt = (TH1F*)fListOfHistos->At(14);
1174 fhRegionMultMinVsEt = (TH1F*)fListOfHistos->At(15);
1175 fhRegionAveSumPtVsEt = (TH1F*)fListOfHistos->At(16);
1177 fhNJets = (TH1F*)fListOfHistos->At(0);
1179 //fhValidRegion = (TH2F*)fListOfHistos->At(21);
1182 TCanvas* c1 = new TCanvas("c1",Form("sumPt dist (%s)", GetTitle()),60,60,1100,700);
1185 TH1F *h1r = new TH1F("hRegionEtvsSumPtMax" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1186 h1r->Divide(fhRegionSumPtMaxVsEt,fhEleadingPt,1,1);
1187 //h1r->Scale( areafactor );
1188 h1r->SetMarkerStyle(20);
1189 h1r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1190 h1r->SetYTitle("P_{T}^{90, max}");
1195 TH1F *h2r = new TH1F("hRegionEtvsSumPtMin" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1196 h2r->Divide(fhRegionSumPtMinVsEt,fhEleadingPt,1,1);
1197 //h2r->Scale( areafactor );
1198 h2r->SetMarkerStyle(20);
1199 h2r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1200 h2r->SetYTitle("P_{T}^{90, min}");
1204 TH1F *h4r = new TH1F("hRegionEtvsDiffPt" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1205 h4r->Divide(fhRegionAveSumPtVsEt,fhEleadingPt,1,1);
1206 h4r->Scale(2.); // make average
1207 //h4r->Scale( areafactor );
1208 h4r->SetYTitle("#DeltaP_{T}^{90}");
1209 h4r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1210 h4r->SetMarkerStyle(20);
1214 TH1F *h5r = new TH1F("hRegionMultMaxVsEtleading", "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1215 TH1F *h6r = new TH1F("hRegionMultMinVsEtleading", "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1217 h5r->Divide(fhRegionMultMaxVsEt,fhEleadingPt,1,1);
1218 h6r->Divide(fhRegionMultMinVsEt,fhEleadingPt,1,1);
1219 //h5r->Scale( areafactor );
1220 //h6r->Scale( areafactor );
1221 h5r->SetYTitle("N_{Tracks}^{90}");
1222 h5r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1223 h5r->SetMarkerStyle(20);
1225 h6r->SetMarkerStyle(21);
1226 h6r->SetMarkerColor(2);
1227 h6r->SetYTitle("N_{Tracks}^{90}");
1228 h6r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1229 h6r->DrawCopy("p same");
1233 fh1Xsec = (TProfile*)fListOfHistos->At(21);
1234 fh1Trials = (TH1F*)fListOfHistos->At(22);
1236 Double_t xsec = fh1Xsec->GetBinContent(1);
1237 Double_t ntrials = fh1Trials->GetBinContent(1);
1238 Double_t normFactor = xsec/ntrials;
1239 if(fDebug > 1)Printf("xSec %f nTrials %f Norm %f \n",xsec,ntrials,normFactor);
1242 TCanvas* c2 = new TCanvas("c2","Jet Pt dist",160,160,1200,800);
1245 fhEleadingPt->SetMarkerStyle(20);
1246 fhEleadingPt->SetMarkerColor(2);
1247 fhEleadingPt->Scale(normFactor);
1248 //fhEleadingPt->Draw("p");
1249 fhEleadingPt->DrawCopy("p");
1253 fhdNdEtaPhiDist->SetMarkerStyle(20);
1254 fhdNdEtaPhiDist->SetMarkerColor(2);
1255 fhdNdEtaPhiDist->DrawCopy("p");
1259 fhNJets->DrawCopy();
1262 //fhValidRegion->DrawCopy("p");
1264 //fhTransRegPartPtDist = (TH1F*)fListOfHistos->At(2);
1265 fhRegionMultMin = (TH1F*)fListOfHistos->At(3);
1266 fhMinRegAvePt = (TH1F*)fListOfHistos->At(4);
1267 fhMinRegSumPt = (TH1F*)fListOfHistos->At(5);
1268 //fhMinRegMaxPtPart = (TH1F*)fListOfHistos->At(6);
1269 fhMinRegSumPtvsMult = (TH1F*)fListOfHistos->At(7);
1272 TCanvas* c3 = new TCanvas("c3"," pT dist",160,160,1200,800);
1275 /*fhTransRegPartPtDist->SetMarkerStyle(20);
1276 fhTransRegPartPtDist->SetMarkerColor(2);
1277 fhTransRegPartPtDist->Scale(areafactor/fhTransRegPartPtDist->GetEntries());
1278 fhTransRegPartPtDist->DrawCopy("p");
1282 fhMinRegSumPt->SetMarkerStyle(20);
1283 fhMinRegSumPt->SetMarkerColor(2);
1284 //fhMinRegSumPt->Scale(areafactor);
1285 fhMinRegSumPt->DrawCopy("p");
1289 fhMinRegAvePt->SetMarkerStyle(20);
1290 fhMinRegAvePt->SetMarkerColor(2);
1291 //fhMinRegAvePt->Scale(areafactor);
1292 fhMinRegAvePt->DrawCopy("p");
1297 TH1F *h7r = new TH1F("hRegionMultMinVsMult", "", 21, -0.5, 20.5);
1299 h7r->Divide(fhMinRegSumPtvsMult,fhRegionMultMin,1,1);
1301 h7r->SetMarkerStyle(20);
1302 h7r->SetMarkerColor(2);
1309 fhValidRegion->SetMarkerStyle(20);
1310 fhValidRegion->SetMarkerColor(2);
1311 fhValidRegion->DrawCopy("p");
1315 AliInfo(" Batch mode, not histograms will be shown...");
1319 AliInfo("End analysis");
1323 void AliAnalysisTaskUE::WriteSettings()
1326 AliInfo(" All Analysis Settings in Saved Tree");
1327 fSettingsTree->Scan();