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, ""),
87 fMaxJetPtInHist(300.),
88 fUseMCParticleBranch(kFALSE),
89 fConstrainDistance(kTRUE),
91 fSimulateChJetPt(kFALSE),
97 fAreaReg(1.5393), // Pi*0.7*0.7
98 fUseChPartJet(kFALSE),
99 fUseSingleCharge(kFALSE),
100 fUsePositiveCharge(kTRUE),
106 fJet2DeltaPhiCut(2.616), // 150 degrees
107 fJet2RatioPtCut(0.8),
115 fhRegionMultMin(0x0),
118 fhMinRegMaxPtPart(0x0),
119 fhMinRegSumPtvsMult(0x0),
120 fhdNdEtaPhiDist(0x0),
121 fhFullRegPartPtDistVsEt(0x0),
122 fhTransRegPartPtDistVsEt(0x0),
123 fhRegionSumPtMaxVsEt(0x0),
124 fhRegionMultMax(0x0),
125 fhRegionMultMaxVsEt(0x0),
126 fhRegionSumPtMinVsEt(0x0), //fhRegionMultMin(0x0),
127 fhRegionMultMinVsEt(0x0),
128 fhRegionAveSumPtVsEt(0x0),
129 fhRegionDiffSumPtVsEt(0x0),
130 fhRegionAvePartPtMaxVsEt(0x0),
131 fhRegionAvePartPtMinVsEt(0x0),
132 fhRegionMaxPartPtMaxVsEt(0x0),
135 fSettingsTree(0x0)//, fhValidRegion(0x0)
137 // Default constructor
138 // Define input and output slots here
139 // Input slot #0 works with a TChain
140 DefineInput(0, TChain::Class());
141 // Output slot #0 writes into a TList container
142 DefineOutput(0, TList::Class());
145 //______________________________________________________________
146 Bool_t AliAnalysisTaskUE::Notify()
149 // Implemented Notify() to read the cross sections
150 // and number of trials from pyxsec.root
151 // Copy from AliAnalysisTaskJFSystematics
155 TTree *tree = AliAnalysisManager::GetAnalysisManager()->GetTree();
156 Float_t xsection = 0;
159 TFile *curfile = tree->GetCurrentFile();
161 Error("Notify","No current file");
164 if(!fh1Xsec||!fh1Trials){
165 Printf("%s%d No Histogram fh1Xsec",(char*)__FILE__,__LINE__);
168 AliAnalysisHelperJetTasks::PythiaInfoFromFile(curfile->GetName(),xsection,ftrials);
169 fh1Xsec->Fill("<#sigma>",xsection);
170 // construct average trials
171 Float_t nEntries = (Float_t)tree->GetTree()->GetEntries();
172 if(ftrials>=nEntries)fAvgTrials = ftrials/nEntries;
177 //____________________________________________________________________
178 void AliAnalysisTaskUE::ConnectInputData(Option_t* /*option*/)
180 // Connect the input data
182 // We need AOD with tracks and jets.
183 // Since AOD can be either connected to the InputEventHandler (input chain fron AOD files)
184 // or to the OutputEventHandler ( AOD is create by a previus task in the train )
185 // we need to check where it is and get the pointer to AODEvent in the right way
187 if (fDebug > 1) AliInfo("ConnectInputData() \n");
189 TObject* handler = AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler();
191 if( handler && handler->InheritsFrom("AliAODInputHandler") ) {
192 fAOD = ((AliAODInputHandler*)handler)->GetEvent();
193 if (fDebug > 1) AliInfo(" ==== Tracks from AliAODInputHandler");
194 // Case when jets are reconstructed on the fly from AOD tracks
195 // (the Jet Finder is using the AliJetAODReader) of InputEventHandler
196 // and put in the OutputEventHandler AOD. Useful whe you want to reconstruct jets with
197 // different parameters to default ones stored in the AOD or to use a different algorithm
199 handler = AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler();
200 if( handler && handler->InheritsFrom("AliAODHandler") ) {
201 fAODjets = ((AliAODHandler*)handler)->GetAOD();
202 if (fDebug > 1) AliInfo(" ==== Jets from AliAODHandler");
206 if (fDebug > 1) AliInfo(" ==== Jets from AliAODInputHandler");
209 handler = AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler();
210 if( handler && handler->InheritsFrom("AliAODHandler") ) {
211 fAOD = ((AliAODHandler*)handler)->GetAOD();
213 if (fDebug > 1) AliInfo(" ==== Tracks and Jets from AliAODHandler");
215 AliFatal("I can't get any AOD Event Handler");
221 //____________________________________________________________________
222 void AliAnalysisTaskUE::CreateOutputObjects()
224 // Create the output container
226 if (fDebug > 1) AliInfo("CreateOutPutData()");
232 // fListOfHistos->SetOwner(kTRUE);
238 //____________________________________________________________________
239 void AliAnalysisTaskUE::Exec(Option_t */*option*/)
241 // Execute analysis for current event
243 if ( fDebug > 3 ) AliInfo( " Processing event..." );
245 // fetch the pythia header info and get the trials
246 AliMCEventHandler* mcHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
249 AliMCEvent* mcEvent = mcHandler->MCEvent();
251 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
253 nTrials = pythiaGenHeader->Trials();
258 fh1Trials->Fill("#sum{ntrials}",fAvgTrials);
264 PostData(0, fListOfHistos);
267 //____________________________________________________________________
268 void AliAnalysisTaskUE::AnalyseUE()
271 // Look for correlations on the tranverse regions to
272 // the leading charged jet
275 // ------------------------------------------------
276 // Find Leading Jets 1,2,3
277 // (could be skipped if Jets are sort by Pt...)
278 Double_t maxPtJet1 = 0.;
280 Double_t maxPtJet2 = 0.; // jet 2 need for back to back inclusive
282 Double_t maxPtJet3 = 0.; // jet 3 need for back to back exclusive
287 if( !fUseChPartJet ) {
290 nJets = fAODjets->GetNJets();
291 // printf("AOD %d jets \n", nJets);
292 for( Int_t i=0; i<nJets; ++i ) {
293 AliAODJet* jet = fAODjets->GetJet(i);
294 Double_t jetPt = jet->Pt();//*1.666; // FIXME Jet Pt Correction ?????!!!
295 if( jetPt > maxPtJet1 ) {
296 maxPtJet3 = maxPtJet2; index3 = index2;
297 maxPtJet2 = maxPtJet1; index2 = index1;
298 maxPtJet1 = jetPt; index1 = i;
299 } else if( jetPt > maxPtJet2 ) {
300 maxPtJet3 = maxPtJet2; index3 = index2;
301 maxPtJet2 = jetPt; index2 = i;
302 } else if( jetPt > maxPtJet3 ) {
303 maxPtJet3 = jetPt; index3 = i;
307 AliAODJet* jet = fAODjets->GetJet(index1);
308 jetVect[0].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
311 AliAODJet* jet = fAODjets->GetJet(index2);
312 jetVect[1].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
315 AliAODJet* jet = fAODjets->GetJet(index3);
316 jetVect[2].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
321 // Use "Charged Particle Jets"
322 TObjArray* jets = FindChargedParticleJets();
324 nJets = jets->GetEntriesFast();
327 AliAODJet* jet = (AliAODJet*)jets->At(0);
328 maxPtJet1 = jet->Pt();
329 jetVect[0].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
333 AliAODJet* jet = (AliAODJet*)jets->At(1);
334 maxPtJet1 = jet->Pt();
335 jetVect[1].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
339 AliAODJet* jet = (AliAODJet*)jets->At(2);
340 maxPtJet1 = jet->Pt();
341 jetVect[2].SetXYZ(jet->Px(), jet->Py(), jet->Pz());
349 fhNJets->Fill(nJets);
353 AliInfo("\n Skipping Event, not jet found...");
356 AliInfo(Form("\n Pt Leading Jet = %6.1f eta=%5.3f ", maxPtJet1, jetVect[0].Eta() ));
360 // ----------------------------------------------
361 // Cut events by jets topology
364 // - Jet1 |eta| < fJet1EtaCut
365 // 2 = back to back inclusive
367 // - |Jet1.Phi - Jet2.Phi| > fJet2DeltaPhiCut
368 // - Jet2.Pt/Jet1Pt > fJet2RatioPtCut
369 // 3 = back to back exclusive
371 // - Jet3.Pt < fJet3PtCut
373 if( index1 < 0 || TMath::Abs(jetVect[0].Eta()) > fJet1EtaCut) {
374 if( fDebug > 1 ) AliInfo("\n Skipping Event...Jet1 |eta| > fJet1EtaCut");
377 // back to back inclusive
378 if( fAnaType > 1 && index2 == -1 ) {
379 if( fDebug > 1 ) AliInfo("\n Skipping Event... no second Jet found");
382 if( fAnaType > 1 && index2 > -1 ) {
383 if( TMath::Abs(jetVect[0].DeltaPhi(jetVect[1])) < fJet2DeltaPhiCut ||
384 maxPtJet2/maxPtJet1 < fJet2RatioPtCut ) {
385 if( fDebug > 1 ) AliInfo("\n Skipping Event... |Jet1.Phi - Jet2.Phi| < fJet2DeltaPhiCut");
389 // back to back exclusive
390 if( fAnaType > 2 && index3 > -1 ) {
391 if( maxPtJet3 > fJet3PtCut ) {
392 if( fDebug > 1 ) AliInfo("\n Skipping Event... Jet3.Pt > fJet3PtCut ");
397 //fhEleadingPt->Fill( maxPtJet1 );
398 //Area for Normalization Purpose at Display histos
399 SetRegionArea(jetVect);
401 // ----------------------------------------------
402 // Find max and min regions
403 Double_t sumPtRegionPosit = 0.;
404 Double_t sumPtRegionNegat = 0.;
405 Double_t maxPartPtRegion = 0.;
406 Int_t nTrackRegionPosit = 0;
407 Int_t nTrackRegionNegat = 0;
408 static const Double_t k270rad = 270.*TMath::Pi()/180.;
410 if (!fUseMCParticleBranch){
411 fhEleadingPt->Fill( maxPtJet1 );
412 Int_t nTracks = fAOD->GetNTracks();
414 for (Int_t ipart=0; ipart<nTracks; ++ipart) {
416 AliAODTrack* part = fAOD->GetTrack( ipart );
417 if ( !part->TestFilterBit(fFilterBit) ) continue; // track cut selection
418 if (!part->IsPrimaryCandidate()) continue; // reject whatever is not linked to collision point
419 // PID Selection: Reject everything but hadrons
420 Bool_t isHadron = part->GetMostProbablePID()==AliAODTrack::kPion ||
421 part->GetMostProbablePID()==AliAODTrack::kKaon ||
422 part->GetMostProbablePID()==AliAODTrack::kProton;
423 if ( !isHadron ) continue;
425 if ( !part->Charge() ) continue; //Only charged
426 if ( fUseSingleCharge ) { // Charge selection
427 if ( fUsePositiveCharge && part->Charge() < 0.) continue; // keep Positives
428 if ( !fUsePositiveCharge && part->Charge() > 0.) continue; // keep Negatives
431 if ( part->Pt() < fTrackPtCut ) continue;
432 if( TMath::Abs(part->Eta()) > fTrackEtaCut ) continue;
434 TVector3 partVect(part->Px(), part->Py(), part->Pz());
436 Double_t deltaPhi = jetVect[0].DeltaPhi(partVect)+k270rad;
437 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
438 fhdNdEtaPhiDist->Fill( deltaPhi );
440 fhFullRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
442 Int_t region = IsTrackInsideRegion( jetVect, &partVect );
445 if( maxPartPtRegion < part->Pt() ) maxPartPtRegion = part->Pt();
446 sumPtRegionPosit += part->Pt();
448 fhTransRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
451 if( maxPartPtRegion < part->Pt() ) maxPartPtRegion = part->Pt();
452 sumPtRegionNegat += part->Pt();
454 fhTransRegPartPtDistVsEt->Fill( part->Pt(), maxPtJet1 );
456 }//end loop AOD tracks
460 // this is the part we only use when we have MC information
461 // More than a test for values of it also resumes the reconstruction efficiency of jets
462 // As commented bellow if available for the data, we try to pair reconstructed jets with simulated ones
463 // afterwards we kept angular variables of MC jet to perform UE analysis over MC particles
464 // TODO: Handle Multiple jet environment. 06/2009 just suited for inclusive jet condition ( fAnaType = 1 )
466 AliMCEventHandler* mcHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
468 Printf("ERROR: Could not retrieve MC event handler");
472 AliMCEvent* mcEvent = mcHandler->MCEvent();
474 Printf("ERROR: Could not retrieve MC event");
477 AliGenPythiaEventHeader* pythiaGenHeader = AliAnalysisHelperJetTasks::GetPythiaEventHeader(mcEvent);
478 if(!pythiaGenHeader){
482 //Get Jets from MC header
483 Int_t nPythiaGenJets = pythiaGenHeader->NTriggerJets();
484 AliAODJet pythiaGenJets[4];
485 TVector3 jetVectnew[4];
487 for(int ip = 0;ip < nPythiaGenJets;++ip){
490 pythiaGenHeader->TriggerJet(ip,p);
491 TVector3 tempVect(p[0],p[1],p[2]);
492 if ( TMath::Abs(tempVect.Eta())>fJet1EtaCut ) continue;
493 pythiaGenJets[iCount].SetPxPyPzE(p[0],p[1],p[2],p[3]);
494 jetVectnew[iCount].SetXYZ(pythiaGenJets[iCount].Px(), pythiaGenJets[iCount].Py(), pythiaGenJets[iCount].Pz());
498 if (!iCount) return;// no jet in eta acceptance
500 //Search the index of the nearest MC jet to the leading jet reconstructed from the input data
502 if (fConstrainDistance){
505 for (Int_t i=0; i<iCount; i++){
507 dRTemp = jetVectnew[i].DeltaR(jetVect[0]);
510 deltaR = jetVectnew[i].DeltaR(jetVect[0]);
511 if (deltaR < dRTemp){
517 if (jetVectnew[index].DeltaR(jetVect[0]) > fMinDistance) return;
519 //Let's add some taste to jet and simulate pt of charged alone
520 //eta and phi are kept as original
521 //Play a Normal Distribution
523 if (fSimulateChJetPt){
525 random = gRandom->Gaus(0.6,0.25);
526 if (random > 0. && random < 1. &&
527 (random * jetVectnew[index].Pt()>6.)) break;
531 //Set new Pt & Fill histogram accordingly
532 maxPtJet1 = random * jetVectnew[index].Pt();
535 fhEleadingPt->Fill( maxPtJet1 );
537 if (fUseAliStack){//Try Stack Information to perform UE analysis
539 AliStack* mcStack = mcEvent->Stack();//Load Stack
540 Int_t nTracksMC = mcStack->GetNtrack();
541 for (Int_t iTracks = 0; iTracks < nTracksMC; iTracks++) {
543 if(!(mcStack->IsPhysicalPrimary(iTracks))) continue;
545 TParticle* mctrk = mcStack->Particle(iTracks);
547 Double_t charge = mctrk->GetPDG()->Charge();
548 if (charge == 0) continue;
550 if ( fUseSingleCharge ) { // Charge selection
551 if ( fUsePositiveCharge && charge < 0.) continue; // keep Positives
552 if ( !fUsePositiveCharge && charge > 0.) continue; // keep Negatives
555 //Kinematics cuts on particle
556 if ((mctrk->Pt() < fTrackPtCut) || (TMath::Abs(mctrk->Eta()) > fTrackEtaCut )) continue;
558 Bool_t isHadron = TMath::Abs(mctrk->GetPdgCode())==211 ||
559 TMath::Abs(mctrk->GetPdgCode())==2212 ||
560 TMath::Abs(mctrk->GetPdgCode())==321;
562 if (!isHadron) continue;
564 TVector3 partVect(mctrk->Px(), mctrk->Py(), mctrk->Pz());
566 Double_t deltaPhi = jetVectnew[index].DeltaPhi(partVect)+k270rad;
567 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
568 fhdNdEtaPhiDist->Fill( deltaPhi );
570 fhFullRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
572 //We are not interested on stack organization but don't loose track of info
573 TVector3 tempVector = jetVectnew[0];
574 jetVectnew[0] = jetVectnew[index];
575 jetVectnew[index] = tempVector;
577 Int_t region = IsTrackInsideRegion( jetVectnew, &partVect );
580 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
581 sumPtRegionPosit += mctrk->Pt();
583 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
586 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
587 sumPtRegionNegat += mctrk->Pt();
589 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
591 } // end loop stack Particles
593 }else{//Try mc Particle
595 TClonesArray* farray = (TClonesArray*)fAOD->FindListObject("mcparticles");
597 Int_t ntrks = farray->GetEntries();
598 if (fDebug>1) AliInfo(Form("In UE MC analysis tracks %d \n",ntrks));
599 for(Int_t i =0 ; i < ntrks; i++){
600 AliAODMCParticle* mctrk = (AliAODMCParticle*)farray->At(i);
602 if (!(mctrk->IsPhysicalPrimary())) continue;
603 //if (!(mctrk->IsPrimary())) continue;
605 if (mctrk->Charge() == 0 || mctrk->Charge()==-99) continue;
607 if (mctrk->Pt() < fTrackPtCut ) continue;
608 if( TMath::Abs(mctrk->Eta()) > fTrackEtaCut ) continue;
610 Bool_t isHadron = TMath::Abs(mctrk->GetPdgCode())==211 ||
611 TMath::Abs(mctrk->GetPdgCode())==2212 ||
612 TMath::Abs(mctrk->GetPdgCode())==321;
614 if (!isHadron) continue;
616 TVector3 partVect(mctrk->Px(), mctrk->Py(), mctrk->Pz());
618 Double_t deltaPhi = jetVectnew[index].DeltaPhi(partVect)+k270rad;
619 if( deltaPhi > 2.*TMath::Pi() ) deltaPhi-= 2.*TMath::Pi();
620 fhdNdEtaPhiDist->Fill( deltaPhi );
622 fhFullRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
624 //We are not interested on stack organization but don't loose track of info
625 TVector3 tempVector = jetVectnew[0];
626 jetVectnew[0] = jetVectnew[index];
627 jetVectnew[index] = tempVector;
629 Int_t region = IsTrackInsideRegion( jetVectnew, &partVect );
632 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
633 sumPtRegionPosit += mctrk->Pt();
635 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
638 if( maxPartPtRegion < mctrk->Pt() ) maxPartPtRegion = mctrk->Pt();
639 sumPtRegionNegat += mctrk->Pt();
641 fhTransRegPartPtDistVsEt->Fill( mctrk->Pt(), maxPtJet1 );
644 }//end loop AliAODMCParticle tracks
647 //How quantities will be sorted before Fill Min and Max Histogram
648 // 1=Plots will be CDF-like
649 // 2=Plots will be Marchesini-like
650 if( fOrdering == 1 ) {
651 if( sumPtRegionPosit > sumPtRegionNegat ) {
652 FillSumPtRegion( maxPtJet1, sumPtRegionPosit/fAreaReg, sumPtRegionNegat/fAreaReg );
654 FillSumPtRegion( maxPtJet1, sumPtRegionNegat/fAreaReg, sumPtRegionPosit/fAreaReg );
656 if (nTrackRegionPosit > nTrackRegionNegat ) {
657 FillMultRegion( maxPtJet1, nTrackRegionPosit/fAreaReg, nTrackRegionNegat/fAreaReg, sumPtRegionNegat/fAreaReg );
659 FillMultRegion( maxPtJet1, nTrackRegionNegat/fAreaReg, nTrackRegionPosit/fAreaReg, sumPtRegionPosit/fAreaReg );
661 } else if( fOrdering == 2 ) {
662 if (sumPtRegionPosit > sumPtRegionNegat) {
663 FillSumPtRegion( maxPtJet1, sumPtRegionPosit/fAreaReg, sumPtRegionNegat/fAreaReg );
664 FillMultRegion( maxPtJet1, nTrackRegionPosit/fAreaReg, nTrackRegionNegat/fAreaReg, sumPtRegionNegat/fAreaReg );
666 FillSumPtRegion( maxPtJet1, sumPtRegionNegat/fAreaReg, sumPtRegionPosit/fAreaReg );
667 FillMultRegion( maxPtJet1, nTrackRegionNegat/fAreaReg, nTrackRegionPosit/fAreaReg, sumPtRegionPosit/fAreaReg );
671 Double_t avePosRegion = (nTrackRegionPosit) ? sumPtRegionPosit/nTrackRegionPosit : 0.;
672 Double_t aveNegRegion = (nTrackRegionNegat) ? sumPtRegionNegat/nTrackRegionNegat : 0.;
673 if( avePosRegion > aveNegRegion ) {
674 FillAvePartPtRegion( maxPtJet1, avePosRegion/fAreaReg, aveNegRegion/fAreaReg );
676 FillAvePartPtRegion( maxPtJet1, aveNegRegion/fAreaReg, avePosRegion/fAreaReg );
679 fhRegionMaxPartPtMaxVsEt->Fill(maxPtJet1, maxPartPtRegion );
681 // Compute pedestal like magnitudes
682 fhRegionDiffSumPtVsEt->Fill(maxPtJet1, TMath::Abs(sumPtRegionPosit-sumPtRegionNegat)/(2.0*fAreaReg));
683 fhRegionAveSumPtVsEt->Fill(maxPtJet1, (sumPtRegionPosit+sumPtRegionNegat)/(2.0*fAreaReg));
687 //____________________________________________________________________
688 void AliAnalysisTaskUE::FillSumPtRegion( Double_t leadingE, Double_t ptMax, Double_t ptMin )
690 // Fill sumPt of control regions
693 fhRegionSumPtMaxVsEt->Fill( leadingE, ptMax );
695 fhRegionSumPtMinVsEt->Fill( leadingE, ptMin );
696 // MAke distributions for UE comparison with MB data
697 fhMinRegSumPt->Fill(ptMin);
700 //____________________________________________________________________
701 void AliAnalysisTaskUE::FillAvePartPtRegion( Double_t leadingE, Double_t ptMax, Double_t ptMin )
703 // Fill average particle Pt of control regions
706 fhRegionAvePartPtMaxVsEt->Fill( leadingE, ptMax );
708 fhRegionAvePartPtMinVsEt->Fill( leadingE, ptMin );
709 // MAke distributions for UE comparison with MB data
710 fhMinRegAvePt->Fill(ptMin);
713 //____________________________________________________________________
714 void AliAnalysisTaskUE::FillMultRegion( Double_t leadingE, Double_t nTrackPtmax, Double_t nTrackPtmin, Double_t ptMin )
716 // Fill Nch multiplicity of control regions
719 fhRegionMultMaxVsEt->Fill( leadingE, nTrackPtmax );
720 fhRegionMultMax->Fill( nTrackPtmax );
722 fhRegionMultMinVsEt->Fill( leadingE, nTrackPtmin );
723 fhRegionMultMin->Fill( nTrackPtmin );
724 // MAke distributions for UE comparison with MB data
725 fhMinRegSumPtvsMult->Fill(nTrackPtmin,ptMin);
728 //____________________________________________________________________
729 Int_t AliAnalysisTaskUE::IsTrackInsideRegion(TVector3 *jetVect, TVector3 *partVect)
731 // return de region in delta phi
732 // -1 negative delta phi
733 // 1 positive delta phi
735 static const Double_t k60rad = 60.*TMath::Pi()/180.;
736 static const Double_t k120rad = 120.*TMath::Pi()/180.;
739 if( fRegionType == 1 ) {
740 if( TMath::Abs(partVect->Eta()) > fTrackEtaCut ) return 0;
741 // transverse regions
742 if (jetVect[0].DeltaPhi(*partVect) < -k60rad && jetVect[0].DeltaPhi(*partVect) > -k120rad ) region = -1;
743 if (jetVect[0].DeltaPhi(*partVect) > k60rad && jetVect[0].DeltaPhi(*partVect) < k120rad ) region = 1;
745 } else if( fRegionType == 2 ) {
747 Double_t deltaR = 0.;
749 TVector3 positVect,negatVect;
750 if (fConePosition==1){
751 positVect.SetMagThetaPhi(1, 2.*atan(exp(-jetVect[0].Eta())), jetVect[0].Phi()+TMath::PiOver2());
752 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-jetVect[0].Eta())), jetVect[0].Phi()-TMath::PiOver2());
753 }else if (fConePosition==2){
754 if(fAnaType<2) AliFatal("Prevent error in Analysis type there might be only 1 jet. To avoid overflow better Correct UE config");
755 positVect.SetMagThetaPhi(1, 2.*atan(exp(-(jetVect[0].Eta()+jetVect[1].Eta())/2.)), jetVect[0].Phi()+TMath::PiOver2());
756 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-(jetVect[0].Eta()+jetVect[1].Eta())/2.)), jetVect[0].Phi()-TMath::PiOver2());
757 }else if (fConePosition==3){
758 if(fAnaType<2) AliFatal("Prevent error in Analysis type there might be only 1 jet. To avoid overflow better Correct UE config");
759 Double_t weightEta = jetVect[0].Eta() * jetVect[0].Pt()/(jetVect[0].Pt() + jetVect[1].Pt()) +
760 jetVect[1].Eta() * jetVect[1].Pt()/(jetVect[0].Pt() + jetVect[1].Pt());
761 //Double_t weightEta = jetVect[0].Eta() * jetVect[0].Mag()/(jetVect[0].Mag() + jetVect[1].Mag()) +
762 // jetVect[1].Eta() * jetVect[1].Mag()/(jetVect[0].Mag() + jetVect[1].Mag());
763 positVect.SetMagThetaPhi(1, 2.*atan(exp(-weightEta)), jetVect[0].Phi()+TMath::PiOver2());
764 negatVect.SetMagThetaPhi(1, 2.*atan(exp(-weightEta)), jetVect[0].Phi()-TMath::PiOver2());
766 if (TMath::Abs(positVect.DeltaPhi(*partVect)) < fConeRadius ) {
768 deltaR = positVect.DrEtaPhi(*partVect);
769 } else if (TMath::Abs(negatVect.DeltaPhi(*partVect)) < fConeRadius) {
771 deltaR = negatVect.DrEtaPhi(*partVect);
774 if (deltaR > fConeRadius) region = 0;
777 AliError("Unknow region type");
779 // For debug (to be removed)
780 //if( region != 0 ) fhValidRegion->Fill( partVect->Eta()-jetVect[0].Eta(), jetVect[0].DeltaPhi(*partVect) );
786 //____________________________________________________________________
787 TObjArray* AliAnalysisTaskUE::FindChargedParticleJets()
789 // Return a TObjArray of "charged particle jets"
791 // Charged particle jet definition from reference:
793 // "Charged jet evolution and the underlying event
794 // in proton-antiproton collisions at 1.8 TeV"
795 // PHYSICAL REVIEW D 65 092002, CDF Collaboration
797 // We define "jets" as circular regions in eta-phi space with
798 // radius defined by R = sqrt( (eta-eta0)^2 +(phi-phi0)^2 ).
799 // Our jet algorithm is as follows:
800 // 1- Order all charged particles according to their pT .
801 // 2- Start with the highest pT particle and include in the jet all
802 // particles within the radius R=0.7 considering each particle
803 // in the order of decreasing pT and recalculating the centroid
804 // of the jet after each new particle is added to the jet .
805 // 3- Go to the next highest pT particle not already included in
806 // a jet and add to the jet all particles not already included in
807 // a jet within R=0.7.
808 // 4- Continue until all particles are in a jet.
809 // We define the transverse momentum of the jet to be
810 // the scalar pT sum of all the particles within the jet, where pT
811 // is measured with respect to the beam axis
813 // 1 - Order all charged particles according to their pT .
814 Int_t nTracks = fAOD->GetNTracks();
815 if( !nTracks ) return 0;
816 TObjArray tracks(nTracks);
818 for (Int_t ipart=0; ipart<nTracks; ++ipart) {
819 AliAODTrack* part = fAOD->GetTrack( ipart );
820 if( !part->TestFilterBit(fFilterBit) ) continue; // track cut selection
821 if( !part->Charge() ) continue;
822 if( part->Pt() < fTrackPtCut ) continue;
823 tracks.AddLast(part);
825 QSortTracks( tracks, 0, tracks.GetEntriesFast() );
827 nTracks = tracks.GetEntriesFast();
828 if( !nTracks ) return 0;
829 TObjArray *jets = new TObjArray(nTracks);
830 TIter itrack(&tracks);
832 // 2- Start with the highest pT particle ...
834 AliAODTrack* track = (AliAODTrack*)itrack.Next();
835 if( !track ) continue;
839 pt = track->Pt(); // Use the energy member to store Pt
840 jets->AddLast( new TLorentzVector(px, py, pz, pt) );
841 tracks.Remove( track );
842 TLorentzVector* jet = (TLorentzVector*)jets->Last();
843 // 3- Go to the next highest pT particle not already included...
845 while ( (track1 = (AliAODTrack*)(itrack.Next())) ) {
846 Double_t dphi = TVector2::Phi_mpi_pi(jet->Phi()-track1->Phi());
847 Double_t r = TMath::Sqrt( (jet->Eta()-track1->Eta())*(jet->Eta()-track1->Eta()) +
849 if( r < fConeRadius ) {
850 Double_t fPt = jet->E()+track1->Pt(); // Scalar sum of Pt
851 // recalculating the centroid
852 Double_t eta = jet->Eta()*jet->E()/fPt + track1->Eta()*track1->Pt()/fPt;
853 Double_t phi = jet->Phi()*jet->E()/fPt + track1->Phi()*track1->Pt()/fPt;
854 jet->SetPtEtaPhiE( 1., eta, phi, fPt );
855 tracks.Remove( track1 );
860 nTracks = tracks.GetEntries();
861 // 4- Continue until all particles are in a jet.
863 } // end while nTracks
865 // Convert to AODjets....
866 Int_t njets = jets->GetEntriesFast();
867 TObjArray* aodjets = new TObjArray(njets);
868 aodjets->SetOwner(kTRUE);
869 for(Int_t ijet=0; ijet<njets; ++ijet) {
870 TLorentzVector* jet = (TLorentzVector*)jets->At(ijet);
871 if (jet->E() < fChJetPtMin) continue;
872 Float_t px, py,pz,en; // convert to 4-vector
873 px = jet->E() * TMath::Cos(jet->Phi()); // Pt * cos(phi)
874 py = jet->E() * TMath::Sin(jet->Phi()); // Pt * sin(phi)
875 pz = jet->E() / TMath::Tan(2.0 * TMath::ATan(TMath::Exp(-jet->Eta())));
876 en = TMath::Sqrt(px * px + py * py + pz * pz);
877 aodjets->AddLast( new AliAODJet(px, py, pz, en) );
879 // Order jets according to their pT .
880 QSortTracks( *aodjets, 0, aodjets->GetEntriesFast() );
883 if (fDebug>3) AliInfo(Form(" %d Charged jets found\n",njets));
888 //____________________________________________________________________
889 void AliAnalysisTaskUE::QSortTracks(TObjArray &a, Int_t first, Int_t last)
891 // Sort array of TObjArray of tracks by Pt using a quicksort algorithm.
894 static int i; // "static" to save stack space
897 while (last - first > 1) {
901 while (++i < last && ((AliVParticle*)a[i])->Pt() > ((AliVParticle*)a[first])->Pt() )
903 while (--j > first && ((AliVParticle*)a[j])->Pt() < ((AliVParticle*)a[first])->Pt() )
919 if (j - first < last - (j + 1)) {
920 QSortTracks(a, first, j);
921 first = j + 1; // QSortTracks(j + 1, last);
923 QSortTracks(a, j + 1, last);
924 last = j; // QSortTracks(first, j);
929 //____________________________________________________________________
930 void AliAnalysisTaskUE::SetRegionArea(TVector3 *jetVect)
932 Double_t fAreaCorrFactor=0.;
933 Double_t deltaEta = 0.;
934 if (fRegionType==1) fAreaReg = 2.*fTrackEtaCut*60.*TMath::Pi()/180.;
935 else if (fRegionType==2){
936 deltaEta = 0.9-TMath::Abs(jetVect[0].Eta());
937 if (deltaEta>fConeRadius) fAreaReg = TMath::Pi()*fConeRadius*fConeRadius;
939 fAreaCorrFactor = fConeRadius*fConeRadius*TMath::ACos(deltaEta/fConeRadius) -
940 (deltaEta*fConeRadius)*TMath::Sqrt( 1. - deltaEta*deltaEta/(fConeRadius*fConeRadius));
941 fAreaReg=TMath::Pi()*fConeRadius*fConeRadius-fAreaCorrFactor;
943 }else AliWarning("Unknown Rgion Type");
944 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));
947 //____________________________________________________________________
948 void AliAnalysisTaskUE::CreateHistos()
950 fListOfHistos = new TList();
953 fhNJets = new TH1F("fhNJets", "n Jet", 10, 0, 10);
954 fhNJets->SetXTitle("# of jets");
956 fListOfHistos->Add( fhNJets ); // At(0)
958 fhEleadingPt = new TH1F("hEleadingPt", "Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
959 fhEleadingPt->SetXTitle("P_{T} (GeV/c)");
960 fhEleadingPt->SetYTitle("dN/dP_{T}");
961 fhEleadingPt->Sumw2();
962 fListOfHistos->Add( fhEleadingPt ); // At(1)
964 fhMinRegPtDist = new TH1F("hMinRegPtDist", "P_{T} distribution in Min zone", 50,0.,20.);
965 fhMinRegPtDist->SetXTitle("P_{T} (GeV/c)");
966 fhMinRegPtDist->SetYTitle("dN/dP_{T}");
967 fhMinRegPtDist->Sumw2();
968 fListOfHistos->Add( fhMinRegPtDist ); // At(2)
970 fhRegionMultMin = new TH1F("hRegionMultMin", "N_{ch}^{90, min}", 21, -0.5, 20.5);
971 fhRegionMultMin->SetXTitle("N_{ch tracks}");
972 fhRegionMultMin->Sumw2();
973 fListOfHistos->Add( fhRegionMultMin ); // At(3)
975 fhMinRegAvePt = new TH1F("hMinRegAvePt", "#LTp_{T}#GT", 50, 0., 20.);
976 fhMinRegAvePt->SetXTitle("P_{T} (GeV/c)");
977 fhMinRegAvePt->Sumw2();
978 fListOfHistos->Add( fhMinRegAvePt ); // At(4)
980 fhMinRegSumPt = new TH1F("hMinRegSumPt", "#Sigma p_{T} ", 50, 0., 20.);
981 fhMinRegSumPt->SetYTitle("Ed^{3}N_{tracks}/dp^{3} (c^{3}/GeV^{2})");
982 fhMinRegSumPt->SetXTitle("#Sigma p_{T} (GeV/c)");
983 fhMinRegSumPt->Sumw2();
984 fListOfHistos->Add( fhMinRegSumPt ); // At(5)
986 fhMinRegMaxPtPart = new TH1F("hMinRegMaxPtPart", "max(p_{T})|_{event} ", 50, 0., 20.);
987 fhMinRegMaxPtPart->SetYTitle("Ed^{3}N_{tracks}/dp^{3} (c^{3}/GeV^{2})");
988 fhMinRegMaxPtPart->SetXTitle("p_{T} (GeV/c)");
989 fhMinRegMaxPtPart->Sumw2();
990 fListOfHistos->Add( fhMinRegMaxPtPart ); // At(6)
992 fhMinRegSumPtvsMult = new TH1F("hMinRegSumPtvsMult", "#Sigma p_{T} vs. Multiplicity ", 21, -0.5, 20.5);
993 fhMinRegSumPtvsMult->SetYTitle("#Sigma p_{T} (GeV/c)");
994 fhMinRegSumPtvsMult->SetXTitle("N_{charge}");
995 fhMinRegSumPtvsMult->Sumw2();
996 fListOfHistos->Add( fhMinRegSumPtvsMult ); // At(7);
998 fhdNdEtaPhiDist = new TH1F("hdNdEtaPhiDist", "Charge particle density |#eta|< 1 vs #Delta#phi", 120, 0., 2.*TMath::Pi());
999 fhdNdEtaPhiDist->SetXTitle("#Delta#phi");
1000 fhdNdEtaPhiDist->SetYTitle("dN_{ch}/d#etad#phi");
1001 fhdNdEtaPhiDist->Sumw2();
1002 fListOfHistos->Add( fhdNdEtaPhiDist ); // At(8)
1004 // Can be use to get part pt distribution for differente Jet Pt bins
1005 fhFullRegPartPtDistVsEt = new TH2F("hFullRegPartPtDistVsEt", "dN/dP_{T} |#eta|<1 vs Leading Jet P_{T}",
1006 50,0.,50., fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1007 fhFullRegPartPtDistVsEt->SetYTitle("Leading Jet P_{T}");
1008 fhFullRegPartPtDistVsEt->SetXTitle("p_{T}");
1009 fhFullRegPartPtDistVsEt->Sumw2();
1010 fListOfHistos->Add( fhFullRegPartPtDistVsEt ); // At(9)
1012 // Can be use to get part pt distribution for differente Jet Pt bins
1013 fhTransRegPartPtDistVsEt = new TH2F("hTransRegPartPtDistVsEt", "dN/dP_{T} in tranvese regions |#eta|<1 vs Leading Jet P_{T}",
1014 50,0.,50., fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1015 fhTransRegPartPtDistVsEt->SetYTitle("Leading Jet P_{T}");
1016 fhTransRegPartPtDistVsEt->SetXTitle("p_{T}");
1017 fhTransRegPartPtDistVsEt->Sumw2();
1018 fListOfHistos->Add( fhTransRegPartPtDistVsEt ); // At(10)
1021 fhRegionSumPtMaxVsEt = new TH1F("hRegionSumPtMaxVsEt", "P_{T}^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1022 fhRegionSumPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1023 fhRegionSumPtMaxVsEt->Sumw2();
1024 fListOfHistos->Add( fhRegionSumPtMaxVsEt ); // At(11)
1026 fhRegionSumPtMinVsEt = new TH1F("hRegionSumPtMinVsEt", "P_{T}^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1027 fhRegionSumPtMinVsEt->SetXTitle("P_{T} (GeV/c)");
1028 fhRegionSumPtMinVsEt->Sumw2();
1029 fListOfHistos->Add( fhRegionSumPtMinVsEt ); // At(12)
1031 fhRegionMultMax = new TH1I("hRegionMultMax", "N_{ch}^{90, max}", 21, -0.5, 20.5);
1032 fhRegionMultMax->SetXTitle("N_{ch tracks}");
1033 fhRegionMultMax->Sumw2();
1034 fListOfHistos->Add( fhRegionMultMax ); // At(13)
1036 fhRegionMultMaxVsEt = new TH1F("hRegionMultMaxVsEt", "N_{ch}^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1037 fhRegionMultMaxVsEt->SetXTitle("E (GeV hRegionAveSumPtVsEt/c)");
1038 fhRegionMultMaxVsEt->Sumw2();
1039 fListOfHistos->Add( fhRegionMultMaxVsEt ); // At(14)
1041 fhRegionMultMinVsEt = new TH1F("hRegionMultMinVsEt", "N_{ch}^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1042 fhRegionMultMinVsEt->SetXTitle("E (GeV/c)");
1043 fhRegionMultMinVsEt->Sumw2();
1044 fListOfHistos->Add( fhRegionMultMinVsEt ); // At(15)
1046 fhRegionAveSumPtVsEt = new TH1F("hRegionAveSumPtVsEt", "(P_{T}^{90, max} + P_{T}^{90, min})/2 vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1047 fhRegionAveSumPtVsEt->SetXTitle("P_{T} (GeV/c)");
1048 fhRegionAveSumPtVsEt->Sumw2();
1049 fListOfHistos->Add( fhRegionAveSumPtVsEt ); // At(16)
1051 fhRegionDiffSumPtVsEt= new TH1F("hRegionPtDiffVsEt", "(P_{T}^{90, max} - P_{T}^{90, min}) vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1052 fhRegionDiffSumPtVsEt->SetXTitle("P_{T} (GeV/c)");
1053 fhRegionDiffSumPtVsEt->Sumw2();
1054 fListOfHistos->Add( fhRegionDiffSumPtVsEt ); // At(17)
1056 fhRegionAvePartPtMaxVsEt = new TH1F("hRegionAvePartPtMaxVsEt", "#LTp_{T}#GT^{90, max} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1057 fhRegionAvePartPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1058 fhRegionAvePartPtMaxVsEt->Sumw2();
1059 fListOfHistos->Add( fhRegionAvePartPtMaxVsEt ); // At(18)
1061 fhRegionAvePartPtMinVsEt = new TH1F("hRegionAvePartPtMinVsEt", "#LTp_{T}#GT^{90, min} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1062 fhRegionAvePartPtMinVsEt->SetXTitle("P_{T} (GeV/c)");
1063 fhRegionAvePartPtMinVsEt->Sumw2();
1064 fListOfHistos->Add( fhRegionAvePartPtMinVsEt ); // At(19)
1066 fhRegionMaxPartPtMaxVsEt = new TH1F("hRegionMaxPartPtMaxVsEt", "max(p_{T})^{90} vs Leading Jet P_{T}", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1067 fhRegionMaxPartPtMaxVsEt->SetXTitle("P_{T} (GeV/c)");
1068 fhRegionMaxPartPtMaxVsEt->Sumw2();
1069 fListOfHistos->Add( fhRegionMaxPartPtMaxVsEt ); // At(20)
1071 fh1Xsec = new TProfile("fh1Xsec","xsec from pyxsec.root",1,0,1);
1072 fh1Xsec->GetXaxis()->SetBinLabel(1,"<#sigma>");
1074 fListOfHistos->Add( fh1Xsec ); //At(21)
1076 fh1Trials = new TH1F("fh1Trials","trials from pyxsec.root",1,0,1);
1077 fh1Trials->GetXaxis()->SetBinLabel(1,"#sum{ntrials}");
1079 fListOfHistos->Add( fh1Trials ); //At(22)
1081 fSettingsTree = new TTree("UEAnalysisSettings","Analysis Settings in UE estimation");
1082 fSettingsTree->Branch("fConeRadius", &fConeRadius,"Rad/D");
1083 fSettingsTree->Branch("fJet1EtaCut", &fJet1EtaCut, "LeadJetEtaCut/D");
1084 fSettingsTree->Branch("fJet2DeltaPhiCut", &fJet2DeltaPhiCut, "DeltaPhi/D");
1085 fSettingsTree->Branch("fJet2RatioPtCut", &fJet2RatioPtCut, "Jet2Ratio/D");
1086 fSettingsTree->Branch("fJet3PtCut", &fJet3PtCut, "Jet3PtCut/D");
1087 fSettingsTree->Branch("fTrackPtCut", &fTrackPtCut, "TrackPtCut/D");
1088 fSettingsTree->Branch("fTrackEtaCut", &fTrackEtaCut, "TrackEtaCut/D");
1089 fSettingsTree->Branch("fAnaType", &fAnaType, "Ana/I");
1090 fSettingsTree->Branch("fRegionType", &fRegionType,"Reg/I");
1091 fSettingsTree->Branch("fOrdering", &fOrdering,"OrderMeth/I");
1092 fSettingsTree->Branch("fUseChPartJet", &fUseChPartJet,"UseChPart/O");
1093 fSettingsTree->Branch("fUseSingleCharge", &fUseSingleCharge,"UseSingleCh/O");
1094 fSettingsTree->Branch("fUsePositiveCharge", &fUsePositiveCharge,"UsePositiveCh/O");
1095 fSettingsTree->Fill();
1098 fListOfHistos->Add( fSettingsTree ); // At(23)
1101 // For debug region selection
1102 fhValidRegion = new TH2F("hValidRegion", "dN/d#eta/d#phi",
1103 20, -2.,2., 62, -TMath::Pi(), TMath::Pi());
1104 fhValidRegion->SetYTitle("#Delta#phi");
1105 fhValidRegion->Sumw2();
1106 fListOfHistos->Add( fhValidRegion ); // At(15)
1110 //____________________________________________________________________
1111 void AliAnalysisTaskUE::Terminate(Option_t */*option*/)
1113 // Terminate analysis
1116 //Save Analysis Settings
1119 // Normalize histos to region area TODO:
1120 // Normalization done at Analysis, taking into account
1121 // area variations on per-event basis (cone case)
1123 // Draw some Test plot to the screen
1124 if (!gROOT->IsBatch()) {
1126 // Update pointers reading them from the output slot
1127 fListOfHistos = dynamic_cast<TList*> (GetOutputData(0));
1128 if( !fListOfHistos ) {
1129 AliError("Histogram List is not available");
1132 fhEleadingPt = (TH1F*)fListOfHistos->At(1);
1133 fhdNdEtaPhiDist = (TH1F*)fListOfHistos->At(8);
1134 fhRegionSumPtMaxVsEt = (TH1F*)fListOfHistos->At(11);
1135 fhRegionSumPtMinVsEt = (TH1F*)fListOfHistos->At(12);
1136 fhRegionMultMaxVsEt = (TH1F*)fListOfHistos->At(14);
1137 fhRegionMultMinVsEt = (TH1F*)fListOfHistos->At(15);
1138 fhRegionAveSumPtVsEt = (TH1F*)fListOfHistos->At(16);
1140 fhNJets = (TH1F*)fListOfHistos->At(0);
1142 //fhValidRegion = (TH2F*)fListOfHistos->At(21);
1145 TCanvas* c1 = new TCanvas("c1",Form("sumPt dist (%s)", GetTitle()),60,60,1100,700);
1148 TH1F *h1r = new TH1F("hRegionEtvsSumPtMax" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1149 h1r->Divide(fhRegionSumPtMaxVsEt,fhEleadingPt,1,1);
1150 //h1r->Scale( areafactor );
1151 h1r->SetMarkerStyle(20);
1152 h1r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1153 h1r->SetYTitle("P_{T}^{90, max}");
1158 TH1F *h2r = new TH1F("hRegionEtvsSumPtMin" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1159 h2r->Divide(fhRegionSumPtMinVsEt,fhEleadingPt,1,1);
1160 //h2r->Scale( areafactor );
1161 h2r->SetMarkerStyle(20);
1162 h2r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1163 h2r->SetYTitle("P_{T}^{90, min}");
1167 TH1F *h4r = new TH1F("hRegionEtvsDiffPt" , "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1168 h4r->Divide(fhRegionAveSumPtVsEt,fhEleadingPt,1,1);
1169 h4r->Scale(2.); // make average
1170 //h4r->Scale( areafactor );
1171 h4r->SetYTitle("#DeltaP_{T}^{90}");
1172 h4r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1173 h4r->SetMarkerStyle(20);
1177 TH1F *h5r = new TH1F("hRegionMultMaxVsEtleading", "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1178 TH1F *h6r = new TH1F("hRegionMultMinVsEtleading", "", fBinsPtInHist, fMinJetPtInHist, fMaxJetPtInHist);
1180 h5r->Divide(fhRegionMultMaxVsEt,fhEleadingPt,1,1);
1181 h6r->Divide(fhRegionMultMinVsEt,fhEleadingPt,1,1);
1182 //h5r->Scale( areafactor );
1183 //h6r->Scale( areafactor );
1184 h5r->SetYTitle("N_{Tracks}^{90}");
1185 h5r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1186 h5r->SetMarkerStyle(20);
1188 h6r->SetMarkerStyle(21);
1189 h6r->SetMarkerColor(2);
1190 h6r->SetYTitle("N_{Tracks}^{90}");
1191 h6r->SetXTitle("P_{T} of Leading Jet (GeV/c)");
1192 h6r->DrawCopy("p same");
1196 fh1Xsec = (TProfile*)fListOfHistos->At(21);
1197 fh1Trials = (TH1F*)fListOfHistos->At(22);
1199 Double_t xsec = fh1Xsec->GetBinContent(1);
1200 Double_t ntrials = fh1Trials->GetBinContent(1);
1201 Double_t normFactor = xsec/ntrials;
1202 Printf("xSec %f nTrials %f Norm %f \n",xsec,ntrials,normFactor);
1205 TCanvas* c2 = new TCanvas("c2","Jet Pt dist",160,160,1200,800);
1208 fhEleadingPt->SetMarkerStyle(20);
1209 fhEleadingPt->SetMarkerColor(2);
1210 fhEleadingPt->Scale(normFactor);
1211 //fhEleadingPt->Draw("p");
1212 fhEleadingPt->DrawCopy("p");
1216 fhdNdEtaPhiDist->SetMarkerStyle(20);
1217 fhdNdEtaPhiDist->SetMarkerColor(2);
1218 fhdNdEtaPhiDist->DrawCopy("p");
1222 fhNJets->DrawCopy();
1225 //fhValidRegion->DrawCopy("p");
1227 //fhTransRegPartPtDist = (TH1F*)fListOfHistos->At(2);
1228 fhRegionMultMin = (TH1F*)fListOfHistos->At(3);
1229 fhMinRegAvePt = (TH1F*)fListOfHistos->At(4);
1230 fhMinRegSumPt = (TH1F*)fListOfHistos->At(5);
1231 //fhMinRegMaxPtPart = (TH1F*)fListOfHistos->At(6);
1232 fhMinRegSumPtvsMult = (TH1F*)fListOfHistos->At(7);
1235 TCanvas* c3 = new TCanvas("c3"," pT dist",160,160,1200,800);
1238 /*fhTransRegPartPtDist->SetMarkerStyle(20);
1239 fhTransRegPartPtDist->SetMarkerColor(2);
1240 fhTransRegPartPtDist->Scale(areafactor/fhTransRegPartPtDist->GetEntries());
1241 fhTransRegPartPtDist->DrawCopy("p");
1245 fhMinRegSumPt->SetMarkerStyle(20);
1246 fhMinRegSumPt->SetMarkerColor(2);
1247 //fhMinRegSumPt->Scale(areafactor);
1248 fhMinRegSumPt->DrawCopy("p");
1252 fhMinRegAvePt->SetMarkerStyle(20);
1253 fhMinRegAvePt->SetMarkerColor(2);
1254 //fhMinRegAvePt->Scale(areafactor);
1255 fhMinRegAvePt->DrawCopy("p");
1260 TH1F *h7r = new TH1F("hRegionMultMinVsMult", "", 21, -0.5, 20.5);
1262 h7r->Divide(fhMinRegSumPtvsMult,fhRegionMultMin,1,1);
1264 h7r->SetMarkerStyle(20);
1265 h7r->SetMarkerColor(2);
1272 fhValidRegion->SetMarkerStyle(20);
1273 fhValidRegion->SetMarkerColor(2);
1274 fhValidRegion->DrawCopy("p");
1278 AliInfo(" Batch mode, not histograms will be shown...");
1282 AliInfo("End analysis");
1286 void AliAnalysisTaskUE::WriteSettings()
1289 AliInfo(" All Analysis Settings in Saved Tree");
1290 fSettingsTree->Scan();