2 /**************************************************************************
3 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
5 * Author: The ALICE Off-line Project. *
6 * Contributors are mentioned in the code where appropriate. *
8 * Permission to use, copy, modify and distribute this software and its *
9 * documentation strictly for non-commercial purposes is hereby granted *
10 * without fee, provided that the above copyright notice appears in all *
11 * copies and that both the copyright notice and this permission notice *
12 * appear in the supporting documentation. The authors make no claims *
13 * about the suitability of this software for any purpose. It is *
14 * provided "as is" without express or implied warranty. *
15 **************************************************************************/
18 // Analysis Taks for reconstructed particle correlation
19 // (first implementation done for D mesons) with jets
20 // (use the so called Emcal framework)
22 //-----------------------------------------------------------------------
24 // C. Bianchin (Utrecht University) chiara.bianchin@cern.ch
25 // A. Grelli (Utrecht University) a.grelli@uu.nl
26 // X. Zhang (LBNL) XMZhang@lbl.gov
27 //-----------------------------------------------------------------------
29 #include <TDatabasePDG.h>
30 #include <TParticle.h>
35 #include "AliAnalysisTaskFlavourJetCorrelations.h"
36 #include "AliAODMCHeader.h"
37 #include "AliAODHandler.h"
38 #include "AliAnalysisManager.h"
40 #include "AliEmcalJet.h"
41 #include "AliAODRecoDecay.h"
42 #include "AliAODRecoCascadeHF.h"
43 #include "AliAODRecoDecayHF2Prong.h"
44 #include "AliESDtrack.h"
45 #include "AliAODMCParticle.h"
46 #include "AliPicoTrack.h"
47 #include "AliRDHFCutsD0toKpi.h"
48 #include "AliRDHFCutsDStartoKpipi.h"
56 ClassImp(AliAnalysisTaskFlavourJetCorrelations)
58 //__________________________________________________________________________
59 AliAnalysisTaskFlavourJetCorrelations::AliAnalysisTaskFlavourJetCorrelations() :
60 AliAnalysisTaskEmcalJet(),
73 fLeadingJetOnly(kFALSE)
79 //___________________________________________________________________________
80 AliAnalysisTaskFlavourJetCorrelations::AliAnalysisTaskFlavourJetCorrelations(const Char_t* name, AliRDHFCuts* cuts,ECandidateType candtype, TString jetArrName) :
81 AliAnalysisTaskEmcalJet(name),
94 fLeadingJetOnly(kFALSE)
97 // Constructor. Initialization of Inputs and Outputs
100 Info("AliAnalysisTaskFlavourJetCorrelations","Calling Constructor");
102 fCandidateType=candtype;
103 const Int_t nptbins=fCuts->GetNPtBins();
104 Float_t defaultSigmaD013[13]={0.012, 0.012, 0.012, 0.015, 0.015,0.018,0.018,0.020,0.020,0.030,0.030,0.037,0.040};
106 switch(fCandidateType){
110 fPDGdaughters[0]=211;//pi
111 fPDGdaughters[1]=321;//K
112 fPDGdaughters[2]=0; //empty
113 fPDGdaughters[3]=0; //empty
114 fBranchName="D0toKpi";
120 fPDGdaughters[1]=211;//pi soft
121 fPDGdaughters[0]=421;//D0
122 fPDGdaughters[2]=211;//pi fromD0
123 fPDGdaughters[3]=321; // K from D0
125 fCandArrName="Dstar";
126 //fSigmaD0=new Float_t[nptbins];
128 for(Int_t ipt=0;ipt<nptbins;ipt++) fSigmaD0[ipt]= defaultSigmaD013[ipt];
130 AliFatal(Form("Default sigma D0 not enough for %d pt bins, use SetSigmaD0ForDStar to set them",nptbins));
134 printf("%d not accepted!!\n",fCandidateType);
138 if(fCandidateType==kD0toKpi)SetMassLimits(0.15,fPDGmother);
139 if(fCandidateType==kDstartoKpipi) SetMassLimits(0.015, fPDGmother);
140 fJetArrName=jetArrName;
141 Printf("Jet read is %s",fJetArrName.Data());
145 DefineOutput(1,TList::Class()); // histos
146 DefineOutput(2,AliRDHFCuts::Class()); // my cuts
148 //___________________________________________________________________________
149 AliAnalysisTaskFlavourJetCorrelations::~AliAnalysisTaskFlavourJetCorrelations() {
154 Info("~AliAnalysisTaskFlavourJetCorrelations","Calling Destructor");
161 //___________________________________________________________
162 void AliAnalysisTaskFlavourJetCorrelations::Init(){
166 if(fDebug > 1) printf("AnalysisTaskRecoJetCorrelations::Init() \n");
167 switch(fCandidateType){
170 AliRDHFCutsD0toKpi* copyfCuts=new AliRDHFCutsD0toKpi(*(static_cast<AliRDHFCutsD0toKpi*>(fCuts)));
171 copyfCuts->SetName("AnalysisCutsDzero");
173 PostData(2,copyfCuts);
178 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*(static_cast<AliRDHFCutsDStartoKpipi*>(fCuts)));
179 copyfCuts->SetName("AnalysisCutsDStar");
181 PostData(2,copyfCuts);
191 //_________________________________________________
192 void AliAnalysisTaskFlavourJetCorrelations::UserExec(Option_t *)
197 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
199 TClonesArray *arrayDStartoD0pi=0;
200 TClonesArray *trackArr = 0;
201 TClonesArray *clusArr = 0;
202 TClonesArray *jetArr = 0;
203 TClonesArray *candidatesArr = 0;
204 //TClonesArray *isselArr = 0;
206 if (!aodEvent && AODEvent() && IsStandardAOD()) {
208 // In case there is an AOD handler writing a standard AOD, use the AOD
209 // event in memory rather than the input (ESD) event.
210 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
212 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
213 // have to taken from the AOD event hold by the AliAODExtension
214 AliAODHandler* aodHandler = (AliAODHandler*)
215 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
216 if(aodHandler->GetExtensions()) {
217 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
218 AliAODEvent *aodFromExt = ext->GetAOD();
219 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject(fBranchName.Data());
222 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject(fBranchName.Data());
225 if (!arrayDStartoD0pi) {
226 AliInfo(Form("Could not find array %s, skipping the event",fBranchName.Data()));
228 } else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
230 TClonesArray* mcArray = 0x0;
232 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
234 printf("AliAnalysisTaskSEDStarSpectra::UserExec: MC particles not found!\n");
240 trackArr = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject("PicoTracks"));
241 clusArr = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject("CaloClustersCorr"));
242 jetArr = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fJetArrName));
245 AliInfo(Form("Could not find the track array\n"));
250 Printf("JET array not found");
254 //retrieve reconstructed particles selected
256 TString listname="AliAnalysisTaskSEDmesonsForJetCorrelations";
257 TList *l=dynamic_cast<TList*>(InputEvent()->FindListObject(listname));
258 TClonesArray *cla=dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(listname));
262 // Printf("list not found!!!!!!!!!!!");
266 Printf("cla not found!!!!!!!!!!!");
273 TString arrname="fCandidateArray";
274 candidatesArr = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(Form("%s%s",arrname.Data(),fCandArrName.Data())));
275 if (!candidatesArr) {
276 Printf("%s%s array not found",arrname.Data(),fCandArrName.Data());
277 InputEvent()->GetList()->ls();
282 arrname="fIsSelectedArray";
283 isselArr = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(Form("%s%s",arrname.Data(),fCandArrName.Data())));
285 Printf("%s%s array not found",arrname.Data(),fCandArrName.Data());
292 TH1I* hstat=(TH1I*)fOutput->FindObject("hstat");
293 TH1F* hPtJetTrks=(TH1F*)fOutput->FindObject("hPtJetTrks");
294 TH1F* hPhiJetTrks=(TH1F*)fOutput->FindObject("hPhiJetTrks");
295 TH1F* hEtaJetTrks=(TH1F*)fOutput->FindObject("hEtaJetTrks");
296 TH1F* hEjetTrks=(TH1F*)fOutput->FindObject("hEjetTrks");
297 TH1F* hPtJet=(TH1F*)fOutput->FindObject("hPtJet");
298 TH1F* hPhiJet=(TH1F*)fOutput->FindObject("hPhiJet");
299 TH1F* hEtaJet=(TH1F*)fOutput->FindObject("hEtaJet");
300 TH1F* hEjet=(TH1F*)fOutput->FindObject("hEjet");
301 TH1F* hNtrArr=(TH1F*)fOutput->FindObject("hNtrArr");
302 TH1F* hNJetPerEv=(TH1F*)fOutput->FindObject("hNJetPerEv");
303 TH1F* hdeltaRJetTracks=((TH1F*)fOutput->FindObject("hdeltaRJetTracks"));
307 // fix for temporary bug in ESDfilter
308 // the AODs with null vertex pointer didn't pass the PhysSel
309 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
312 Bool_t iseventselected=fCuts->IsEventSelected(aodEvent);
313 TString firedTriggerClasses=((AliAODEvent*)aodEvent)->GetFiredTriggerClasses();
314 if(!iseventselected) return;
319 Int_t njets=jetArr->GetEntriesFast();
320 if(njets == 0) return;
322 const Int_t nD=arrayDStartoD0pi->GetEntriesFast();
325 // counters for efficiencies
326 Int_t icountReco = 0;
328 //D* and D0 prongs needed to MatchToMC method
329 // Int_t pdgDgDStartoD0pi[2]={421,211};
330 // Int_t pdgDgD0toKpi[2]={321,211};
333 // we start with jets
338 Double_t leadingJet =0;
340 Int_t ntrarr=trackArr->GetEntriesFast();
341 hNtrArr->Fill(ntrarr);
343 for(Int_t i=0;i<ntrarr;i++){
344 AliVTrack *jtrack=static_cast<AliVTrack*>(trackArr->At(i));
346 hPtJetTrks->Fill(jtrack->Pt());
347 hPhiJetTrks->Fill(jtrack->Phi());
348 hEtaJetTrks->Fill(jtrack->Eta());
349 hEjetTrks->Fill(jtrack->E());
353 //option to use only the leading jet
355 for (Int_t iJetsL = 0; iJetsL<njets; iJetsL++) {
356 AliEmcalJet* jetL = (AliEmcalJet*)jetArr->At(iJetsL);
358 if(ptjet>leadingJet ) leadingJet = ptjet;
364 //loop over jets and consider only the leading jet in the event
365 for (Int_t iJets = 0; iJets<njets; iJets++) {
366 AliEmcalJet* jet = (AliEmcalJet*)jetArr->At(iJets);
367 if(!AcceptJet(jet)) continue;
369 vector<int> DmesonInJetLabels(10);
377 // choose the leading jet
378 if(fLeadingJetOnly && (ejet<leadingJet)) continue;
379 //used for normalization
382 // fill energy, eta and phi of the jet
384 hPhiJet ->Fill(phiJet);
385 hEtaJet ->Fill(etaJet);
386 hPtJet ->Fill(ptjet);
388 //loop on jet particles
389 Int_t ntrjet= jet->GetNumberOfTracks();
390 for(Int_t itrk=0;itrk<ntrjet;itrk++){
392 AliPicoTrack* jetTrk=(AliPicoTrack*)jet->TrackAt(itrk,trackArr);
393 hdeltaRJetTracks->Fill(DeltaR(jet,jetTrk));
395 // check MC in for the traks within the jet, look at D mesons
396 // within the jet area
397 //if(fUseMCInfo) FillMCDJetInfo(jetTrk,jet,mcArray,ptjet);
399 }//end loop on jet tracks
401 //retrieve charm candidates selected
402 Int_t candidates = candidatesArr->GetEntriesFast();
403 for(Int_t ic = 0; ic < candidates; ic++) {
405 AliAODRecoDecayHF* charm = 0x0;
406 charm=(AliAODRecoDecayHF*)candidatesArr->At(ic);
408 FillHistogramsRecoJetCorr(charm, jet);
413 hNJetPerEv->Fill(cntjet);
415 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
421 //________________________________________ terminate ___________________________
422 void AliAnalysisTaskFlavourJetCorrelations::Terminate(Option_t*)
424 // The Terminate() function is the last function to be called during
425 // a query. It always runs on the client, it can be used to present
426 // the results graphically or save the results to file.
428 Info("Terminate"," terminate");
429 AliAnalysisTaskSE::Terminate();
431 fOutput = dynamic_cast<TList*> (GetOutputData(1));
433 printf("ERROR: fOutput not available\n");
437 //___________________________________________________________________________
439 void AliAnalysisTaskFlavourJetCorrelations::UserCreateOutputObjects() {
441 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
445 fOutput = new TList();
448 DefineHistoForAnalysis();
453 //_________________________________________________________________
454 void AliAnalysisTaskFlavourJetCorrelations::SetMassLimits(Double_t range, Int_t pdg){
456 Int_t abspdg=TMath::Abs(pdg);
458 mass=TDatabasePDG::Instance()->GetParticle(abspdg)->Mass();
459 // compute the Delta mass for the D*
460 if(fCandidateType==kDstartoKpipi){
462 mass1=TDatabasePDG::Instance()->GetParticle(421)->Mass();
465 cout<<"mass ---------------"<<endl;
466 fMinMass = mass-range;
467 fMaxMass = mass+range;
469 AliInfo(Form("Setting mass limits to %f, %f",fMinMass,fMaxMass));
470 if (fMinMass<0 || fMaxMass<=0 || fMaxMass<fMinMass) AliFatal("Wrong mass limits!\n");
472 //_________________________________________________________________
473 void AliAnalysisTaskFlavourJetCorrelations::SetMassLimits(Double_t lowlimit, Double_t uplimit){
480 printf("Error! Lower limit larger than upper limit!\n");
481 fMinMass = uplimit - uplimit*0.2;
486 //__________________________________________________________________
487 Bool_t AliAnalysisTaskFlavourJetCorrelations::SetD0WidthForDStar(Int_t nptbins,Float_t *width){
489 AliInfo("Maximum number of bins allowed is 30!");
492 if(!width) return kFALSE;
493 for(Int_t ipt=0;ipt<nptbins;ipt++) fSigmaD0[ipt]=width[ipt];
497 //__________________________________________________________________
498 Double_t AliAnalysisTaskFlavourJetCorrelations::Z(AliVParticle* part,AliEmcalJet* jet) const{
500 printf("Particle or jet do not exist!\n");
504 Bool_t okpp=part->PxPyPz(p);
505 Bool_t okpj=jet->PxPyPz(pj);
507 printf("Problems getting momenta\n");
510 Double_t pjet=jet->P();
511 Double_t z=(p[0]*pj[0]+p[1]*pj[1]+p[2]*pj[2])/(pjet*pjet);
514 //___________________________________ histograms _______________________________________
516 Bool_t AliAnalysisTaskFlavourJetCorrelations::DefineHistoForAnalysis(){
519 TH1I* hstat=new TH1I("hstat","Statistics",5,-0.5,4.5);
520 hstat->GetXaxis()->SetBinLabel(1,"N ev anal");
521 hstat->GetXaxis()->SetBinLabel(2,"N ev sel");
522 hstat->GetXaxis()->SetBinLabel(3,"N cand sel cuts");
523 hstat->GetXaxis()->SetBinLabel(4,"N jets");
524 hstat->GetXaxis()->SetBinLabel(5,"N cand in jet");
526 // hstat->GetXaxis()->SetBinLabel(7,"N D");
527 // hstat->GetXaxis()->SetBinLabel(8,"N D in jet");
531 hstat->SetNdivisions(1);
534 const Int_t nbinsmass=200;
537 if(fCandidateType==kDstartoKpipi)
539 // TH2F *hDiff = new TH2F("hDiff","M(kpipi)-M(kpi)",500,fMinMass,fMaxMass,100, 0.,30.);
540 // hDiff->SetStats(kTRUE);
541 // hDiff->GetXaxis()->SetTitle("M(kpipi)-M(kpi) GeV/c^{2}");
542 // hDiff->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
543 // fOutput->Add(hDiff);
545 TH2F* hDiffSideBand = new TH2F("hDiffSideBand","M(kpipi)-M(kpi) Side Band Background",nbinsmass,fMinMass,fMaxMass,100, 0.,30.);
546 hDiffSideBand->SetStats(kTRUE);
547 hDiffSideBand->GetXaxis()->SetTitle("M(kpipi)-M(Kpi) GeV/c^{2}");
548 hDiffSideBand->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
549 fOutput->Add(hDiffSideBand);
551 //correlation histograms
552 // fPhi = new TH1F("phi","Delta phi between Jet axis and DStar ",25,-1.57,4.72);
553 // fPhi->SetStats(kTRUE);
554 // fPhi->GetXaxis()->SetTitle("#Delta #phi (rad)");
555 // fPhi->GetYaxis()->SetTitle("Entries");
556 // fOutput->Add(fPhi);
558 // fDphiD0Dstar = new TH1F("phiD0Dstar","Delta phi between D0 and DStar ",1000,-6.5,6.5);
559 // fOutput->Add(fDphiD0Dstar);
561 // fPhiBkg = new TH1F("phiBkg","Delta phi between Jet axis and DStar background ",25,-1.57,4.72);
562 // fPhiBkg->SetStats(kTRUE);
563 // fPhiBkg->GetXaxis()->SetTitle("#Delta #phi (rad)");
564 // fPhiBkg->GetYaxis()->SetTitle("Entries");
565 // fOutput->Add(fPhiBkg);
567 // TH1F* hRECOPtDStar = new TH1F("hRECODStar","RECO DStar pt distribution",30,0,30);
568 // hRECOPtDStar->SetStats(kTRUE);
569 // hRECOPtDStar->SetLineColor(2);
570 // hRECOPtDStar->GetXaxis()->SetTitle("GeV/c");
571 // hRECOPtDStar->GetYaxis()->SetTitle("Entries");
572 // fOutput->Add(hRECOPtDStar);
574 // TH1F* hRECOPtBkg = new TH1F("hRECOptBkg","RECO pt distribution side bands",30,0,30);
575 // hRECOPtBkg->SetStats(kTRUE);
576 // hRECOPtBkg->SetLineColor(2);
577 // hRECOPtBkg->GetXaxis()->SetTitle("GeV/c");
578 // hRECOPtBkg->GetYaxis()->SetTitle("Entries");
579 // fOutput->Add(hRECOPtBkg);
581 TH1F* hPtPion = new TH1F("hPtPion","Primary pions candidates pt ",500,0,10);
582 hPtPion->SetStats(kTRUE);
583 hPtPion->GetXaxis()->SetTitle("GeV/c");
584 hPtPion->GetYaxis()->SetTitle("Entries");
585 fOutput->Add(hPtPion);
589 // jet related fistograms
591 TH1F* hEjetTrks = new TH1F("hEjetTrks", "Jet tracks energy distribution;Energy (GeV)",500,0,200);
592 TH1F* hPhiJetTrks = new TH1F("hPhiJetTrks","Jet tracks #phi distribution; #phi (rad)", 200,0,6.30);
593 TH1F* hEtaJetTrks = new TH1F("hEtaJetTrks","Jet tracks #eta distribution; #eta", 100,-1.5,1.5);
594 TH1F* hPtJetTrks = new TH1F("hPtJetTrks", "Jet tracks Pt distribution; p_{T} (GeV/c^{2})",500,0,200);
596 TH1F* hEjet = new TH1F("hEjet", "Jet energy distribution;Energy (GeV)",500,0,200);
597 TH1F* hPhiJet = new TH1F("hPhiJet","Jet #phi distribution; #phi (rad)", 200,0,6.30);
598 TH1F* hEtaJet = new TH1F("hEtaJet","Jet #eta distribution; #eta", 100,-1.5,1.5);
599 TH1F* hPtJet = new TH1F("hPtJet", "Jet Pt distribution; p_{T} (GeV/c^{2})",500,0,200);
601 TH1F* hPtJetWithD=new TH1F("hPtJetWithD","D-Jet Pt distribution; p_{T} (GeV/c^{2})",500,0,200);
602 TH1F* hdeltaRJetTracks=new TH1F("hdeltaRJetTracks","Delta R of tracks in the jets",200, 0.,10.);
604 TH1F* hNtrArr= new TH1F("hNtrArr", "Number of tracks in the array of jets; number of tracks",500,0,1000);
605 TH1F *hNJetPerEv=new TH1F("hNJetPerEv","Number of jets used per event; number of jets/ev",10,-0.5,9.5);
607 fOutput->Add(hEjetTrks);
608 fOutput->Add(hPhiJetTrks);
609 fOutput->Add(hEtaJetTrks);
610 fOutput->Add(hPtJetTrks);
612 fOutput->Add(hPhiJet);
613 fOutput->Add(hEtaJet);
614 fOutput->Add(hPtJet);
615 fOutput->Add(hPtJetWithD);
616 fOutput->Add(hdeltaRJetTracks);
617 fOutput->Add(hNtrArr);
618 fOutput->Add(hNJetPerEv);
622 fhMomjetpartPdg=new TH1F("fhMomjetpartPdg","Jet particles' mothers distribution;PDG code;Counts;",1100,-550,550);
623 fOutput->Add(fhMomjetpartPdg);
624 fptDinjetallvsptjMC=new TH2F("fptDinjetallvsptjMC","p_{t} distribution of D within a jet (all DeltaR) vs p_{t}^{jet};p_{t}^{D};p_{t}^{jet}",100, 0.,30.,500,0.,200.);
625 fOutput->Add(fptDinjetallvsptjMC);
626 fptJwithDMC=new TH1F("fptJwithDMC","p_{t}^{jet} with a D meson (all DeltaR);p_{t}^{jet};Counts",500,0.,200.);
627 fOutput->Add(fptJwithDMC);
629 fptDinjet04vsptjMC=new TH2F("fptDinjet04vsptjMC","p_{t} distribution of D within a jet (DeltaR 0.4) vs p_{t}^{jet};p_{t}^{D};p_{t}^{jet}",100, 0.,30.,500,0.,200.);
630 fOutput->Add(fptDinjet04vsptjMC);
631 TH1F* hdeltaRDMC=new TH1F("hdeltaRDMC","#Delta R for MC tagged D mesons; #Delta R_{D}^{MC}",200, 0.,10.);
632 fOutput->Add(hdeltaRDMC);
635 TH1F* hDeltaRD=new TH1F("hDeltaRD","#Delta R distribution of D candidates selected;#Delta R",200, 0.,10.);
636 fOutput->Add(hDeltaRD);
638 TH3F* hdeltaPhiDja=new TH3F("hdeltaPhiDja", "#Delta#phi D-jet (jet p_{T} > threshold)",nbinsmass,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
639 hdeltaPhiDja->GetXaxis()->SetTitle("mass (GeV/c)");
640 hdeltaPhiDja->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c)");
641 hdeltaPhiDja->GetYaxis()->SetTitle("#Delta#phi (rad)");
642 // TH3F* hdeltaPhiDjl=new TH3F("hdeltaPhiDjl", Form("#Delta#phi D-jet (jet p_{T} < %.0f (GeV/c^{2}))",fJetPtThr),500,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
643 // hdeltaPhiDjl->GetXaxis()->SetTitle("mass (GeV/c)");
644 // hdeltaPhiDjl->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
645 // hdeltaPhiDjl->GetYaxis()->SetTitle("#Delta#phi (rad)");
646 // TH3F* hdeltaPhiDjh=new TH3F("hdeltaPhiDjh", Form("#Delta#phi D-jet (jet p_{T} > %.0f (GeV/c^{2}))",fJetPtThr),500,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
647 // hdeltaPhiDjh->GetXaxis()->SetTitle("mass (GeV/c)");
648 // hdeltaPhiDjh->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
649 // hdeltaPhiDjh->GetYaxis()->SetTitle("#Delta#phi (rad)");
650 fOutput->Add(hdeltaPhiDja);
651 // fOutput->Add(hdeltaPhiDjl);
652 // fOutput->Add(hdeltaPhiDjh);
654 //background (side bands for the Dstar and like sign for D0)
656 TH3F* hdeltaPhiDjaB=new TH3F("hdeltaPhiDjaB", "#Delta#phi D-jet (all jet p_{T})",nbinsmass,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
657 hdeltaPhiDjaB->GetXaxis()->SetTitle("mass (GeV/c)");
658 hdeltaPhiDjaB->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c)");
659 hdeltaPhiDjaB->GetYaxis()->SetTitle("#Delta#phi (rad)");
660 // TH3F* hdeltaPhiDjlB=new TH3F("hdeltaPhiDjlB", Form("#Delta#phi D-jet (jet p_{T} < %.0f (GeV/c^{2}))",fJetPtThr),1500,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
661 // hdeltaPhiDjlB->GetXaxis()->SetTitle("mass (GeV/c)");
662 // hdeltaPhiDjlB->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
663 // hdeltaPhiDjlB->GetYaxis()->SetTitle("#Delta#phi (rad)");
664 // TH3F* hdeltaPhiDjhB=new TH3F("hdeltaPhiDjhB", Form("#Delta#phi D-jet (jet p_{T} > %.0f (GeV/c^{2}))",fJetPtThr),1500,fMinMass,fMaxMass,100, 0.,30.,50,(-1)*TMath::Pi()/2.,3./2.*TMath::Pi());
665 // hdeltaPhiDjhB->GetXaxis()->SetTitle("mass (GeV/c)");
666 // hdeltaPhiDjhB->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c^{2})");
667 // hdeltaPhiDjhB->GetYaxis()->SetTitle("#Delta#phi (rad)");
668 fOutput->Add(hdeltaPhiDjaB);
669 // fOutput->Add(hdeltaPhiDjlB);
670 // fOutput->Add(hdeltaPhiDjhB);
672 TH2F* hInvMassptD = new TH2F("hInvMassptD","D (Delta R < 0.4) invariant mass distribution p_{T}^{j} > threshold",nbinsmass,fMinMass,fMaxMass,100,0.,50.);
673 hInvMassptD->SetStats(kTRUE);
674 hInvMassptD->GetXaxis()->SetTitle("mass (GeV/c)");
675 hInvMassptD->GetYaxis()->SetTitle("p_{t}^{D} (GeV/c)");
677 fOutput->Add(hInvMassptD);
678 // fMasspjDeltaR=new TH3F("fMasspjDeltaR","Mass vs p^{jet} vs #Delta R;Mass (Gev/c);p^{jet}(Gev/c^{2});#Delta R",1500,fMinMass,fMaxMass,100,0.,50.,100,0.,1.);
679 // fMasspjDeltaR->SetStats(kFALSE);
680 // fOutput->Add(fMasspjDeltaR);
682 TH3F* hzptD=new TH3F("hzptD","Fragmentation function (DeltaR < 0.4)",100,0.,1.2,nbinsmass,fMinMass,fMaxMass,100,0,50);
683 hzptD->SetStats(kTRUE);
684 hzptD->GetXaxis()->SetTitle("z=p_{D} #cdot p_{j}/|p_{j}|^{2}");
685 hzptD->GetYaxis()->SetTitle("mass (GeV/c)");
686 hzptD->GetZaxis()->SetTitle("p_{t}^{D} (GeV/c)");
689 TH3F* hzptDB=new TH3F("hzptDB","Fragmentation function (DeltaR < 0.4) - Side Bands",100,0.,1.2,nbinsmass,fMinMass,fMaxMass,100,0.,50.);
690 hzptDB->SetStats(kTRUE);
691 hzptDB->GetXaxis()->SetTitle("z=p_{D} #cdot p_{j}/|p_{j}|^{2}");
692 hzptDB->GetYaxis()->SetTitle("mass (GeV/c)");
693 hzptDB->GetZaxis()->SetTitle("p_{t}^{D} (GeV/c)");
694 fOutput->Add(hzptDB);
695 //TH1F* hResZ = new TH1F("hResZ","Fragmentation function ",50,0,1);
696 // TH1F* hResZBkg = new TH1F("hResZBkg","Fragmentation function background",50,0,1);
698 //fOutput->Add(hResZ);
699 //fOutput->Add(hResZBkg);
705 void AliAnalysisTaskFlavourJetCorrelations::FillHistogramsRecoJetCorr(AliAODRecoDecayHF* candidate, AliEmcalJet *jet){
707 Double_t ptD=candidate->Pt();
708 Double_t ptjet=jet->Pt();
709 Double_t deltaR=DeltaR(candidate,jet);
710 Double_t deltaphi = jet->Phi()-candidate->Phi();
711 if(deltaphi<=-(TMath::Pi())/2) deltaphi = deltaphi+2*(TMath::Pi());
712 if(deltaphi>(3*(TMath::Pi()))/2) deltaphi = deltaphi-2*(TMath::Pi());
713 Double_t z=Z(candidate,jet);
715 TH1F* hDeltaRD=(TH1F*)fOutput->FindObject("hDeltaRD");
716 hDeltaRD->Fill(deltaR);
717 TH1I* hstat=(TH1I*)fOutput->FindObject("hstat");
719 TH1F* hPtJetWithD=(TH1F*)fOutput->FindObject("hPtJetWithD");
720 hPtJetWithD->Fill(ptjet);
722 if(fCandidateType==kD0toKpi) {
724 FillHistogramsD0JetCorr(candidate,deltaphi,z,ptD,deltaR, AODEvent());
728 if(fCandidateType==kDstartoKpipi) {
729 AliAODRecoCascadeHF* dstar = (AliAODRecoCascadeHF*)candidate;
730 FillHistogramsDstarJetCorr(dstar,deltaphi,z,ptD,deltaR);
736 void AliAnalysisTaskFlavourJetCorrelations::FillHistogramsD0JetCorr(AliAODRecoDecayHF* candidate, Double_t dPhi, Double_t z, Double_t ptD, Double_t deltaR, AliAODEvent* aodEvent){
737 Double_t masses[2]={0.,0.};
738 Int_t pdgdaughtersD0[2]={211,321};//pi,K
739 Int_t pdgdaughtersD0bar[2]={321,211};//K,pi
741 masses[0]=candidate->InvMass(fNProngs,(UInt_t*)pdgdaughtersD0); //D0
742 masses[1]=candidate->InvMass(fNProngs,(UInt_t*)pdgdaughtersD0bar); //D0bar
745 Int_t isselected=fCuts->IsSelected(candidate,AliRDHFCuts::kAll,aodEvent);
746 if(isselected==1 || isselected==3) {
748 FillHistogramsD(masses[0],dPhi,z, ptD, deltaR);
752 FillHistogramsD(masses[1],dPhi,z, ptD, deltaR);
757 void AliAnalysisTaskFlavourJetCorrelations::FillHistogramsDstarJetCorr(AliAODRecoCascadeHF* dstar, Double_t dPhi, Double_t z, Double_t ptD, Double_t deltaR){
758 AliAODTrack *softpi = (AliAODTrack*)dstar->GetBachelor();
759 Double_t deltamass= dstar->DeltaInvMass();
760 Double_t massD0= dstar->InvMassD0();
762 TH1F* hPtPion=(TH1F*)fOutput->FindObject("hPtPion");
763 hPtPion->Fill(softpi->Pt());
764 FillHistogramsD(deltamass,dPhi,z, ptD, deltaR);
765 // evaluate side band background
766 TH2F* hDiffSideBand=(TH2F*)fOutput->FindObject("hDiffSideBand");
768 TH3F* hdeltaPhiDjaB=(TH3F*)fOutput->FindObject("hdeltaPhiDjaB");
770 TH3F* hzptDB=(TH3F*)fOutput->FindObject("hzptDB");
772 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
774 Int_t bin = fCuts->PtBin(ptD);
775 Float_t fourSigmal= mPDGD0-3.5*fSigmaD0[bin] , sixSigmal= mPDGD0-5.*fSigmaD0[bin];
776 Float_t fourSigmar= mPDGD0+3.5*fSigmaD0[bin] , sixSigmar= mPDGD0+5.*fSigmaD0[bin];
778 if((massD0>sixSigmal && massD0<fourSigmal) || (massD0>fourSigmar && massD0<=sixSigmar)){
779 hDiffSideBand->Fill(deltamass,ptD); // M(Kpipi)-M(Kpi) side band background
780 hdeltaPhiDjaB->Fill(deltamass,ptD,dPhi);
782 if(deltaR<0.4){ // evaluate in the near side
783 hzptDB->Fill(z,deltamass,ptD);
786 } // SideBandBackground(dstar, dPhi, z, ptD, deltaR);
790 void AliAnalysisTaskFlavourJetCorrelations::FillHistogramsD(Double_t mass,Double_t dphi, Double_t z,Double_t ptD, Double_t deltaR){
791 TH3F* hdeltaPhiDja=((TH3F*)fOutput->FindObject("hdeltaPhiDja"));
792 hdeltaPhiDja->Fill(mass,ptD,dphi);
795 TH3F* hzptD=(TH3F*)fOutput->FindObject("hzptD");
796 hzptD->Fill(z,mass,ptD);
798 TH2F* hInvMassptD=(TH2F*)fOutput->FindObject("hInvMassptD");
799 hInvMassptD->Fill(mass,ptD);
802 //______________________________ side band background for D*___________________________________
804 // void AliAnalysisTaskFlavourJetCorrelations::SideBandBackground(AliAODRecoCascadeHF *candDstar, Double_t dPhi, Double_t z, Double_t ptD, Double_t deltaR){
806 // // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
807 // // (expected detector resolution) on the left and right frm the D0 mass. Each band
808 // // has a width of ~5 sigmas. Two band needed for opening angle considerations
809 // TH2F* hDiffSideBand=(TH2F*)fOutput->FindObject("hDiffSideBand");
811 // TH3F* hdeltaPhiDjaB=(TH3F*)fOutput->FindObject("hdeltaPhiDjaB");
813 // TH3F* hzptDB=(TH3F*)fOutput->FindObject("hzptDB");
815 // Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
817 // Int_t bin = fCuts->PtBin(candDstar->Pt());
818 // Float_t fourSigmal= mPDGD0-3.5*fSigmaD0[bin] , sixSigmal= mPDGD0-5.*fSigmaD0[bin];
819 // Float_t fourSigmar= mPDGD0+3.5*fSigmaD0[bin] , sixSigmar= mPDGD0+5.*fSigmaD0[bin];
821 // Double_t invM=candDstar->InvMassD0(), deltaM=candDstar->DeltaInvMass(); //invMDstar=candDstar->InvMassDstarKpipi(),
822 // Printf("Inv mass = %f between %f and %f or %f and %f?",invM, sixSigmal,fourSigmal,fourSigmar,sixSigmar);
823 // Double_t ptD=candDstar->Pt();
824 // //Double_t ptjet=jet->Pt();
825 // Double_t dPhi=jet->Phi()-candDstar->Phi();
826 // Double_t deltaR=DeltaR(candDstar,jet);
827 // if(dPhi>TMath::Pi())dPhi = dPhi - 2.*TMath::Pi();
828 // if(dPhi<(-1.*TMath::Pi()))dPhi = dPhi + 2.*TMath::Pi();
830 // if((invM>sixSigmal && invM<fourSigmal) || (invM>fourSigmar && invM<=sixSigmar)){
831 // hDiffSideBand->Fill(deltaM,ptD); // M(Kpipi)-M(Kpi) side band background
832 // hdeltaPhiDjaB->Fill(deltaM,ptD,dPhi);
834 // if(deltaR<0.4){ // evaluate in the near side
835 // hzptDB->Fill(Z(candDstar,jet),deltaM,ptD);
841 Float_t AliAnalysisTaskFlavourJetCorrelations::DeltaR(AliVParticle *p1, AliVParticle *p2) const {
842 //Calculate DeltaR between p1 and p2: DeltaR=sqrt(Delataphi^2+DeltaEta^2)
844 if(!p1 || !p2) return -1;
845 Double_t phi1=p1->Phi(),eta1=p1->Eta();
846 Double_t phi2 = p2->Phi(),eta2 = p2->Eta() ;
848 Double_t dPhi=phi1-phi2;
849 if(dPhi<=-(TMath::Pi())/2) dPhi = dPhi+2*(TMath::Pi());
850 if(dPhi>(3*(TMath::Pi()))/2) dPhi = dPhi-2*(TMath::Pi());
852 Double_t dEta=eta1-eta2;
853 Double_t deltaR=TMath::Sqrt(dEta*dEta + dPhi*dPhi );
859 //_____________________________________________________________________
861 Bool_t AliAnalysisTaskFlavourJetCorrelations::IsD(Int_t pdg) const{
862 Int_t abspdg=TMath::Abs(pdg);
863 if(abspdg>400 && abspdg<500) return kTRUE;
867 //_____________________________________________________________________
869 Bool_t AliAnalysisTaskFlavourJetCorrelations::IsD(Int_t pdg,Int_t abspdgD) const{
870 Int_t abspdg=TMath::Abs(pdg);
871 if(abspdg==abspdgD) return kTRUE;
875 //_____________________________________________________________________
877 Bool_t AliAnalysisTaskFlavourJetCorrelations::PartFromC(AliMCParticle* mother) const{
878 Int_t pdgmoth=mother->PdgCode();
879 if(TMath::Abs(pdgmoth)==4) return kTRUE;
883 Int_t AliAnalysisTaskFlavourJetCorrelations::GetFirstMother(Int_t labpart, TClonesArray *mcArray) const{
884 AliAODMCParticle* partMC=(AliAODMCParticle*)mcArray->UncheckedAt(labpart);
885 if (!partMC) return -2;
886 Int_t labmom=labpart;
887 Printf("Starting from %d",labmom);
890 partMC=(AliAODMCParticle*)mcArray->UncheckedAt(labmom);
891 if (!partMC) return -2;
892 labmom= partMC->GetMother();
893 Printf("Lab mom %d",labmom);
895 Printf("Return labpart %d", labpart);
900 // -------------------------------------- check the PDG -----------------------------------------
902 Int_t AliAnalysisTaskFlavourJetCorrelations::FindPDGInFamily(Int_t labpart,Int_t pdgcode, TClonesArray *mcArray) const{
904 //return the label of the particle which is a "pdgcode" in the family
905 Printf("FindPDGInFamily label %d, pdg %d, mcarray %p",labpart,pdgcode,mcArray);
906 AliAODMCParticle* partMC=(AliAODMCParticle*)mcArray->UncheckedAt(labpart);
907 if (!partMC) return -2;
908 Int_t labmom=labpart;
909 Printf("Starting from %d",labmom);
912 partMC=(AliAODMCParticle*)mcArray->UncheckedAt(labmom);
913 if (!partMC) return -2;
914 Int_t pdgmom=partMC->GetPdgCode();
915 if(pdgmom==pdgcode) return labmom;
916 labmom= partMC->GetMother();
917 Printf("Lab mom %d",labmom);
924 // ------------------------- check on MC the distance between D meson and jet ----------------------
926 Bool_t AliAnalysisTaskFlavourJetCorrelations::FillMCDJetInfo(AliPicoTrack *jetTrk, AliEmcalJet* jet, TClonesArray *mcArray, Double_t ptjet){
928 Bool_t foundD = kFALSE;
929 vector<int> DmesonInJetLabels(10);
931 Int_t jtlabel=jetTrk->GetLabel();
932 if(jtlabel<=0) return foundD;
933 AliAODMCParticle* jetMCpart=(AliAODMCParticle*)mcArray->UncheckedAt(jtlabel);
934 if(!jetMCpart) return foundD;
935 printf("AliMCParticle %d, %p\n",1,jetMCpart);
937 Int_t labDmeson=FindPDGInFamily(jtlabel,fPDGmother, mcArray);
939 AliAODMCParticle *partDmeson=(AliAODMCParticle*)mcArray->UncheckedAt(labDmeson);
940 fhMomjetpartPdg->Fill(partDmeson->GetPdgCode());
943 Int_t momjetpartlabel=labDmeson;
946 Bool_t exists=kFALSE;
947 for(Int_t k=0;k<iD;k++){
948 if(momjetpartlabel==DmesonInJetLabels[k]) {//mother already found
954 DmesonInJetLabels[iD]=momjetpartlabel;
955 AliDebug(2,Form("D meson number %d found: label %d\n",iD,DmesonInJetLabels[iD]));
963 if(fUseMCInfo && foundD) {
964 fptJwithDMC->Fill(ptjet); //filled only once per jet, not per each D meson
966 // loop over the D within the jet
967 for(Int_t kD=0;kD<iD;kD++){
969 AliAODMCParticle* momjetpart=(AliAODMCParticle*)mcArray->At(DmesonInJetLabels[kD]);
970 Double_t ptD=momjetpart->Pt(),etaD=momjetpart->Eta(), phiD=momjetpart->Phi();
971 fptDinjetallvsptjMC->Fill(ptD,ptjet);
973 Double_t deltaRD=DeltaR(jet,momjetpart);
975 ((TH1F*)fOutput->FindObject("hdeltaRDMC"))->Fill(deltaRD); //Delta R of D mesons (MC)
977 Double_t z=Z(momjetpart,jet);
981 //comment if you prefer to ask for DeltaR of the daughters < 0.4 and uncomment below
982 fptDinjet04vsptjMC->Fill(ptD,ptjet);
983 fzptDptj->Fill(z,ptD,ptjet);