1 /**************************************************************************
2 * Copyright(c) 1998-2009, 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 * appeuear 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 **************************************************************************/
20 // Base class for DStar Analysis
23 // The D* spectra study is done in pt bins:
24 // [0,0.5] [0.5,1] [1,2] [2,3] [3,4] [4,5] [5,6] [6,7] [7,8],
25 // [8,10],[10,12], [12,16], [16,20] and [20,24]
27 // Cuts arew centralized in AliRDHFCutsDStartoKpipi
28 // Side Band and like sign background are implemented in the macro
30 //-----------------------------------------------------------------------
33 // ERC-QGP Utrecht University - a.grelli@uu.nl,
35 // University of Heidelberg - yifei@physi.uni-heidelberg.de
37 // ERC-QGP Utrecht University - c.ivan@uu.nl,
39 //-----------------------------------------------------------------------
42 #include <TParticle.h>
45 #include <TDatabasePDG.h>
46 #include <AliAnalysisDataSlot.h>
47 #include <AliAnalysisDataContainer.h>
48 #include "AliRDHFCutsDStartoKpipi.h"
50 #include "AliMCEvent.h"
51 #include "AliAnalysisManager.h"
52 #include "AliAODMCHeader.h"
53 #include "AliAODHandler.h"
55 #include "AliAODVertex.h"
56 #include "AliAODRecoDecay.h"
57 #include "AliAODRecoDecayHF.h"
58 #include "AliAODRecoCascadeHF.h"
59 #include "AliAODRecoDecayHF2Prong.h"
60 #include "AliAnalysisVertexingHF.h"
61 #include "AliESDtrack.h"
62 #include "AliAODMCParticle.h"
63 #include "AliAnalysisTaskSE.h"
64 #include "AliAnalysisTaskSEDStarSpectra.h"
65 #include "AliNormalizationCounter.h"
67 ClassImp(AliAnalysisTaskSEDStarSpectra)
69 //__________________________________________________________________________
70 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra():
87 fDoImpParDstar(kFALSE),
96 //___________________________________________________________________________
97 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra(const Char_t* name, AliRDHFCutsDStartoKpipi* cuts) :
98 AliAnalysisTaskSE(name),
114 fDoImpParDstar(kFALSE),
116 fLowerImpPar(-2000.),
120 // Constructor. Initialization of Inputs and Outputs
122 Info("AliAnalysisTaskSEDStarSpectra","Calling Constructor");
126 DefineOutput(1,TList::Class()); //conters
127 DefineOutput(2,TList::Class()); //All Entries output
128 DefineOutput(3,TList::Class()); //3sigma PID output
129 DefineOutput(4,AliRDHFCutsDStartoKpipi::Class()); //My private output
130 DefineOutput(5,AliNormalizationCounter::Class()); // normalization
133 //___________________________________________________________________________
134 AliAnalysisTaskSEDStarSpectra::~AliAnalysisTaskSEDStarSpectra() {
138 Info("~AliAnalysisTaskSEDStarSpectra","Calling Destructor");
164 for(Int_t i=0; i<5; i++){
165 delete fHistMassPtImpParTCDs[i];
168 //_________________________________________________
169 void AliAnalysisTaskSEDStarSpectra::Init(){
174 if(fDebug > 1) printf("AnalysisTaskSEDStarSpectra::Init() \n");
175 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
177 PostData(4,copyfCuts);
182 //_________________________________________________
183 void AliAnalysisTaskSEDStarSpectra::UserExec(Option_t *)
187 Error("UserExec","NO EVENT FOUND!");
193 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
194 TClonesArray *arrayDStartoD0pi=0;
198 if(!aodEvent && AODEvent() && IsStandardAOD()) {
199 // In case there is an AOD handler writing a standard AOD, use the AOD
200 // event in memory rather than the input (ESD) event.
201 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
202 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
203 // have to taken from the AOD event hold by the AliAODExtension
204 AliAODHandler* aodHandler = (AliAODHandler*)
205 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
206 if(aodHandler->GetExtensions()) {
207 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
208 AliAODEvent *aodFromExt = ext->GetAOD();
209 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
212 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
215 // fix for temporary bug in ESDfilter
216 // the AODs with null vertex pointer didn't pass the PhysSel
217 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
220 fCounter->StoreEvent(aodEvent,fCuts,fUseMCInfo);
222 // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD
223 TString trigclass=aodEvent->GetFiredTriggerClasses();
224 if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD")||trigclass.Contains("C0SMH-B-NOPF-ALL")) fCEvents->Fill(5);
226 if(!fCuts->IsEventSelected(aodEvent)) {
227 if(fCuts->GetWhyRejection()==6) // rejected for Z vertex
232 Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
236 // AliInfo(Form("Event %d",fEvents));
237 //if (fEvents%10000 ==0) AliInfo(Form("Event %d",fEvents));
239 // counters for efficiencies
240 Int_t icountReco = 0;
242 //D* and D0 prongs needed to MatchToMC method
243 Int_t pdgDgDStartoD0pi[2]={421,211};
244 Int_t pdgDgD0toKpi[2]={321,211};
246 // AOD primary vertex
247 AliAODVertex *vtx1 = (AliAODVertex*)aodEvent->GetPrimaryVertex();
249 if(vtx1->GetNContributors()<1) return;
251 if (!arrayDStartoD0pi){
252 AliInfo("Could not find array of HF vertices, skipping the event");
254 }else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
256 Int_t nSelectedAna =0;
257 Int_t nSelectedProd =0;
259 // loop over the tracks to search for candidates soft pion
260 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
262 // D* candidates and D0 from D*
263 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
264 if(!dstarD0pi->GetSecondaryVtx()) continue;
265 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
266 if (!theD0particle) continue;
269 TClonesArray *mcArray = 0;
270 AliAODMCHeader *mcHeader=0;
272 Bool_t isPrimary=kTRUE;
278 Float_t trueImpParXY=0.;
282 //MC array need for maching
283 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
285 AliError("Could not find Monte-Carlo in AOD");
289 mcHeader = (AliAODMCHeader*)aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName());
291 printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
294 // find associated MC particle for D* ->D0toKpi
295 Int_t mcLabel = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,mcArray);
298 AliAODMCParticle *partDSt = (AliAODMCParticle*)mcArray->At(mcLabel);
299 Int_t checkOrigin = CheckOrigin(mcArray,partDSt);
300 if(checkOrigin==5) isPrimary=kFALSE;
301 AliAODMCParticle *dg0 = (AliAODMCParticle*)mcArray->At(partDSt->GetDaughter(0));
302 AliAODMCParticle *dg0_1 = (AliAODMCParticle*)mcArray->At(dg0->GetDaughter(0));
307 pdgCode=TMath::Abs(partDSt->GetPdgCode());
309 trueImpParXY=GetTrueImpactParameterD0(mcHeader,mcArray,dg0)*1000.;
317 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
319 // quality selction on tracks and region of interest
320 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
321 if(!isTkSelected) continue;
323 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
326 //histos for impact par studies - D0!!!
327 Double_t ptCand = dstarD0pi->Get2Prong()->Pt();
328 Double_t invMass=dstarD0pi->InvMassD0();
329 Double_t impparXY=dstarD0pi->Get2Prong()->ImpParXY()*10000.;
331 Double_t arrayForSparse[3]={invMass,ptCand,impparXY};
332 Double_t arrayForSparseTrue[3]={invMass,ptCand,trueImpParXY};
334 // set the D0 search window bin by bin - useful to calculate side band bkg
420 // check that we are close to signal in the DeltaM - here to save time for PbPb
421 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
422 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
423 Double_t invmassDelta = dstarD0pi->DeltaInvMass();
425 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>fPeakWindow) continue;
428 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
431 if(fDoImpParDstar && isSelected){
432 fHistMassPtImpParTCDs[0]->Fill(arrayForSparse);
433 if(isPrimary) fHistMassPtImpParTCDs[1]->Fill(arrayForSparse);
435 fHistMassPtImpParTCDs[2]->Fill(arrayForSparse);
436 fHistMassPtImpParTCDs[3]->Fill(arrayForSparseTrue);
441 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelected,fOutputPID);
442 SideBandBackground(dstarD0pi,fCuts,isSelected, fOutputPID);
443 //WrongSignForDStar(dstarD0pi,fCuts,fOutputPID);
445 //swich off the PID selection
446 fCuts->SetUsePID(kFALSE);
447 Int_t isSelectedNoPID=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
448 fCuts->SetUsePID(kTRUE);
450 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelectedNoPID,fOutputPID);
451 SideBandBackground(dstarD0pi,fCuts,isSelectedNoPID, fOutputPID);
453 // rare D search ------
455 TLorentzVector LorentzTrack1(0,0,0,0); // lorentz 4 vector
456 TLorentzVector LorentzTrack2(0,0,0,0); // lorentz 4 vector
458 for (Int_t i=0; i<aodEvent->GetNTracks(); i++){
460 AliAODTrack* aodTrack = aodEvent->GetTrack(i);
462 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
463 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
464 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
467 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
469 LorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
470 LorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
473 Double_t d1mass = ((LorentzTrack1+LorentzTrack2).M());
474 //mass difference - at 0.4117 and 0.4566
475 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
480 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
485 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
486 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
488 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
491 PostData(2,fOutputAll);
492 PostData(3,fOutputPID);
493 PostData(5,fCounter);
496 //________________________________________ terminate ___________________________
497 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
499 // The Terminate() function is the last function to be called during
500 // a query. It always runs on the client, it can be used to present
501 // the results graphically or save the results to file.
503 //Info("Terminate","");
504 AliAnalysisTaskSE::Terminate();
506 fOutput = dynamic_cast<TList*> (GetOutputData(1));
508 printf("ERROR: fOutput not available\n");
512 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
513 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
514 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
516 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
518 printf("ERROR: fOutputAll not available\n");
521 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
523 printf("ERROR: fOutputPID not available\n");
530 //___________________________________________________________________________
531 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
533 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
537 fOutput = new TList();
539 fOutput->SetName("chist0");
541 fOutputAll = new TList();
542 fOutputAll->SetOwner();
543 fOutputAll->SetName("listAll");
545 fOutputPID = new TList();
546 fOutputPID->SetOwner();
547 fOutputPID->SetName("listPID");
552 //Counter for Normalization
553 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
555 if(fDoImpParDstar) CreateImpactParameterHistos();
558 PostData(2,fOutputAll);
559 PostData(3,fOutputPID);
563 //___________________________________ hiostograms _______________________________________
564 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
566 fCEvents = new TH1F("fCEvents","conter",11,0,11);
567 fCEvents->SetStats(kTRUE);
568 fCEvents->GetXaxis()->SetTitle("1");
569 fCEvents->GetYaxis()->SetTitle("counts");
570 fOutput->Add(fCEvents);
572 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
573 fOutput->Add(fTrueDiff2);
575 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
576 fOutput->Add(fDeltaMassD1);
578 const Int_t nhist=14;
579 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
581 for(Int_t i=-2;i<nhist;i++){
582 nameMass="histDeltaMass_";
584 nameSgn="histDeltaSgn_";
586 nameBkg="histDeltaBkg_";
590 nameMass="histDeltaMass";
591 nameSgn="histDeltaSgn";
592 nameBkg="histDeltaBkg";
595 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
596 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
597 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
599 nameMass="histD0Mass_";
601 nameSgn="histD0Sgn_";
603 nameBkg="histD0Bkg_";
607 nameMass="histD0Mass";
612 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
613 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
614 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
616 nameMass="histDstarMass_";
618 nameSgn="histDstarSgn_";
620 nameBkg="histDstarBkg_";
624 nameMass="histDstarMass";
625 nameSgn="histDstarSgn";
626 nameBkg="histDstarBkg";
629 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
630 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
631 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
633 nameMass="histSideBandMass_";
636 nameMass="histSideBandMass";
639 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
641 nameMass="histWrongSignMass_";
644 nameMass="histWrongSignMass";
647 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
650 spectrumMass->Sumw2();
651 spectrumSgn->Sumw2();
652 spectrumBkg->Sumw2();
654 spectrumMass->SetLineColor(6);
655 spectrumSgn->SetLineColor(2);
656 spectrumBkg->SetLineColor(4);
658 spectrumMass->SetMarkerStyle(20);
659 spectrumSgn->SetMarkerStyle(20);
660 spectrumBkg->SetMarkerStyle(20);
661 spectrumMass->SetMarkerSize(0.6);
662 spectrumSgn->SetMarkerSize(0.6);
663 spectrumBkg->SetMarkerSize(0.6);
664 spectrumMass->SetMarkerColor(6);
665 spectrumSgn->SetMarkerColor(2);
666 spectrumBkg->SetMarkerColor(4);
668 spectrumD0Mass->Sumw2();
669 spectrumD0Sgn->Sumw2();
670 spectrumD0Bkg->Sumw2();
672 spectrumD0Mass->SetLineColor(6);
673 spectrumD0Sgn->SetLineColor(2);
674 spectrumD0Bkg->SetLineColor(4);
676 spectrumD0Mass->SetMarkerStyle(20);
677 spectrumD0Sgn->SetMarkerStyle(20);
678 spectrumD0Bkg->SetMarkerStyle(20);
679 spectrumD0Mass->SetMarkerSize(0.6);
680 spectrumD0Sgn->SetMarkerSize(0.6);
681 spectrumD0Bkg->SetMarkerSize(0.6);
682 spectrumD0Mass->SetMarkerColor(6);
683 spectrumD0Sgn->SetMarkerColor(2);
684 spectrumD0Bkg->SetMarkerColor(4);
686 spectrumDstarMass->Sumw2();
687 spectrumDstarSgn->Sumw2();
688 spectrumDstarBkg->Sumw2();
690 spectrumDstarMass->SetLineColor(6);
691 spectrumDstarSgn->SetLineColor(2);
692 spectrumDstarBkg->SetLineColor(4);
694 spectrumDstarMass->SetMarkerStyle(20);
695 spectrumDstarSgn->SetMarkerStyle(20);
696 spectrumDstarBkg->SetMarkerStyle(20);
697 spectrumDstarMass->SetMarkerSize(0.6);
698 spectrumDstarSgn->SetMarkerSize(0.6);
699 spectrumDstarBkg->SetMarkerSize(0.6);
700 spectrumDstarMass->SetMarkerColor(6);
701 spectrumDstarSgn->SetMarkerColor(2);
702 spectrumDstarBkg->SetMarkerColor(4);
704 spectrumSideBandMass->Sumw2();
705 spectrumSideBandMass->SetLineColor(4);
706 spectrumSideBandMass->SetMarkerStyle(20);
707 spectrumSideBandMass->SetMarkerSize(0.6);
708 spectrumSideBandMass->SetMarkerColor(4);
710 spectrumWrongSignMass->Sumw2();
711 spectrumWrongSignMass->SetLineColor(4);
712 spectrumWrongSignMass->SetMarkerStyle(20);
713 spectrumWrongSignMass->SetMarkerSize(0.6);
714 spectrumWrongSignMass->SetMarkerColor(4);
716 TH1F* allMass = (TH1F*)spectrumMass->Clone();
717 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
718 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
720 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
721 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
722 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
724 fOutputAll->Add(allMass);
725 fOutputAll->Add(allSgn);
726 fOutputAll->Add(allBkg);
728 fOutputPID->Add(pidMass);
729 fOutputPID->Add(pidSgn);
730 fOutputPID->Add(pidBkg);
732 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
733 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
734 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
736 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
737 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
738 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
740 fOutputAll->Add(allD0Mass);
741 fOutputAll->Add(allD0Sgn);
742 fOutputAll->Add(allD0Bkg);
744 fOutputPID->Add(pidD0Mass);
745 fOutputPID->Add(pidD0Sgn);
746 fOutputPID->Add(pidD0Bkg);
748 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
749 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
750 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
752 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
753 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
754 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
756 fOutputAll->Add(allDstarMass);
757 fOutputAll->Add(allDstarSgn);
758 fOutputAll->Add(allDstarBkg);
760 fOutputPID->Add(pidDstarMass);
761 fOutputPID->Add(pidDstarSgn);
762 fOutputPID->Add(pidDstarBkg);
764 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
765 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
767 fOutputAll->Add(allSideBandMass);
768 fOutputPID->Add(pidSideBandMass);
770 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
771 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
773 fOutputAll->Add(allWrongSignMass);
774 fOutputPID->Add(pidWrongSignMass);
783 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
784 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
785 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
787 ptspectrumMass->Sumw2();
788 ptspectrumSgn->Sumw2();
789 ptspectrumBkg->Sumw2();
791 ptspectrumMass->SetLineColor(6);
792 ptspectrumSgn->SetLineColor(2);
793 ptspectrumBkg->SetLineColor(4);
795 ptspectrumMass->SetMarkerStyle(20);
796 ptspectrumSgn->SetMarkerStyle(20);
797 ptspectrumBkg->SetMarkerStyle(20);
798 ptspectrumMass->SetMarkerSize(0.6);
799 ptspectrumSgn->SetMarkerSize(0.6);
800 ptspectrumBkg->SetMarkerSize(0.6);
801 ptspectrumMass->SetMarkerColor(6);
802 ptspectrumSgn->SetMarkerColor(2);
803 ptspectrumBkg->SetMarkerColor(4);
805 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
806 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
807 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
809 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
810 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
811 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
813 fOutputAll->Add(ptallMass);
814 fOutputAll->Add(ptallSgn);
815 fOutputAll->Add(ptallBkg);
817 fOutputPID->Add(ptpidMass);
818 fOutputPID->Add(ptpidSgn);
819 fOutputPID->Add(ptpidBkg);
826 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
827 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
828 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
830 etaspectrumMass->Sumw2();
831 etaspectrumSgn->Sumw2();
832 etaspectrumBkg->Sumw2();
834 etaspectrumMass->SetLineColor(6);
835 etaspectrumSgn->SetLineColor(2);
836 etaspectrumBkg->SetLineColor(4);
838 etaspectrumMass->SetMarkerStyle(20);
839 etaspectrumSgn->SetMarkerStyle(20);
840 etaspectrumBkg->SetMarkerStyle(20);
841 etaspectrumMass->SetMarkerSize(0.6);
842 etaspectrumSgn->SetMarkerSize(0.6);
843 etaspectrumBkg->SetMarkerSize(0.6);
844 etaspectrumMass->SetMarkerColor(6);
845 etaspectrumSgn->SetMarkerColor(2);
846 etaspectrumBkg->SetMarkerColor(4);
848 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
849 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
850 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
852 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
853 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
854 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
856 fOutputAll->Add(etaallMass);
857 fOutputAll->Add(etaallSgn);
858 fOutputAll->Add(etaallBkg);
860 fOutputPID->Add(etapidMass);
861 fOutputPID->Add(etapidSgn);
862 fOutputPID->Add(etapidBkg);
866 //________________________________________________________________________
867 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
869 // Fill histos for D* spectrum
875 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
876 Double_t invmassD0 = part->InvMassD0();
877 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
880 Int_t ptbin=cuts->PtBin(part->Pt());
881 Double_t pt = part->Pt();
882 Double_t eta = part->Eta();
884 Double_t invmassDelta = part->DeltaInvMass();
885 Double_t invmassDstar = part->InvMassDstarKpipi();
888 Bool_t massInRange=kFALSE;
890 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
892 // delta M(Kpipi)-M(Kpi)
893 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
897 fillthis="histD0Sgn_";
899 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
900 fillthis="histD0Sgn";
901 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
902 fillthis="histDstarSgn_";
904 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
905 fillthis="histDstarSgn";
906 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
907 fillthis="histDeltaSgn_";
909 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
910 fillthis="histDeltaSgn";
911 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
914 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
916 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
920 fillthis="histD0Bkg_";
922 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
923 fillthis="histD0Bkg";
924 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
925 fillthis="histDstarBkg_";
927 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
928 fillthis="histDstarBkg";
929 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
930 fillthis="histDeltaBkg_";
932 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
933 fillthis="histDeltaBkg";
934 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
937 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
939 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
943 //no MC info, just cut selection
944 fillthis="histD0Mass_";
946 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
947 fillthis="histD0Mass";
948 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
949 fillthis="histDstarMass_";
951 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
952 fillthis="histDstarMass";
953 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
954 fillthis="histDeltaMass_";
956 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
957 fillthis="histDeltaMass";
958 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
962 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
964 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
969 //______________________________ side band background for D*___________________________________
970 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
972 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
973 // (expected detector resolution) on the left and right frm the D0 mass. Each band
974 // has a width of ~5 sigmas. Two band needed for opening angle considerations
978 Int_t ptbin=cuts->PtBin(part->Pt());
980 Bool_t massInRange=kFALSE;
982 // select the side bands intervall
983 Double_t invmassD0 = part->InvMassD0();
984 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
987 Double_t invmassDelta = part->DeltaInvMass();
988 if (TMath::Abs(invmassDelta-0.14557)<fPeakWindow) massInRange=kTRUE;
991 fillthis="histSideBandMass_";
993 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
994 fillthis="histSideBandMass";
995 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
999 //________________________________________________________________________________________________________________
1000 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
1002 // assign the wrong charge to the soft pion to create background
1004 Int_t ptbin=cuts->PtBin(part->Pt());
1006 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1007 Double_t invmassD0 = part->InvMassD0();
1008 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
1010 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
1012 Int_t okD0WrongSign,okD0barWrongSign;
1013 Double_t wrongMassD0=0.;
1015 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1021 okD0barWrongSign = 1;
1023 //if is D*+ than assume D0bar
1024 if(part->Charge()>0 && (isSelected ==1)) {
1027 if(part->Charge()<0 && (isSelected ==2)){
1028 okD0barWrongSign = 0;
1031 // assign the wrong mass in case the cuts return both D0 and D0bar
1032 if(part->Charge()>0 && (isSelected ==3)) {
1034 } else if(part->Charge()<0 && (isSelected ==3)){
1035 okD0barWrongSign = 0;
1039 if(okD0WrongSign!=0){
1040 wrongMassD0 = theD0particle->InvMassD0();
1041 }else if(okD0WrongSign==0){
1042 wrongMassD0 = theD0particle->InvMassD0bar();
1045 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1047 // wrong D* inv mass
1049 if (part->Charge()>0){
1050 e[0]=theD0particle->EProng(0,321);
1051 e[1]=theD0particle->EProng(1,211);
1053 e[0]=theD0particle->EProng(0,211);
1054 e[1]=theD0particle->EProng(1,321);
1056 e[2]=part->EProng(0,211);
1058 Double_t esum = e[0]+e[1]+e[2];
1059 Double_t pds = part->P();
1061 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1063 TString fillthis="";
1064 fillthis="histWrongSignMass_";
1066 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1067 fillthis="histWrongSignMass";
1068 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1072 //-------------------------------------------------------------------------------
1073 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, AliAODMCParticle *mcPartCandidate) const {
1075 // checking whether the mother of the particles come from a charm or a bottom quark
1078 Int_t pdgGranma = 0;
1080 mother = mcPartCandidate->GetMother();
1082 Int_t abspdgGranma =0;
1083 Bool_t isFromB=kFALSE;
1084 Bool_t isQuarkFound=kFALSE;
1087 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1089 pdgGranma = mcGranma->GetPdgCode();
1090 abspdgGranma = TMath::Abs(pdgGranma);
1091 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1094 if(abspdgGranma==4 || abspdgGranma==5) isQuarkFound=kTRUE;
1095 mother = mcGranma->GetMother();
1097 AliError("Failed casting the mother particle!");
1102 if(isFromB) return 5;
1105 //-------------------------------------------------------------------------------------
1106 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(AliAODMCHeader *mcHeader, TClonesArray* arrayMC, AliAODMCParticle *partDp) const {
1107 // true impact parameter calculation
1109 Double_t vtxTrue[3];
1110 mcHeader->GetVertex(vtxTrue);
1112 partDp->XvYvZv(origD);
1113 Short_t charge=partDp->Charge();
1114 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1115 Int_t labelFirstDau = partDp->GetDaughter(0);
1117 Int_t nDau=partDp->GetNDaughters();
1121 for(Int_t iDau=0; iDau<2; iDau++){
1122 Int_t ind = labelFirstDau+iDau;
1123 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1125 AliError("Daughter particle not found in MC array");
1128 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1129 if(pdgCode==211 || pdgCode==321){
1130 pXdauTrue[theDau]=part->Px();
1131 pYdauTrue[theDau]=part->Py();
1132 pZdauTrue[theDau]=part->Pz();
1138 AliError("Wrong number of decay prongs");
1142 Double_t d0dummy[3]={0.,0.,0.};
1143 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1144 return aodD0MC.ImpParXY();
1147 //______________________________________________________-
1148 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1149 // Histos for impact paramter study
1151 Int_t nbins[3]={400,200,fNImpParBins};
1152 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1153 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1155 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1156 "Mass vs. pt vs.imppar - All",
1158 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1159 "Mass vs. pt vs.imppar - promptD",
1161 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1162 "Mass vs. pt vs.imppar - DfromB",
1164 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1165 "Mass vs. pt vs.true imppar -DfromB",
1167 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1168 "Mass vs. pt vs.imppar - backgr.",
1171 for(Int_t i=0; i<5;i++){
1172 fOutput->Add(fHistMassPtImpParTCDs[i]);