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 "AliNormalizationCounter.h"
64 #include "AliAODEvent.h"
65 #include "AliAnalysisTaskSEDStarSpectra.h"
67 ClassImp(AliAnalysisTaskSEDStarSpectra)
69 //__________________________________________________________________________
70 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra():
87 fDoImpParDstar(kFALSE),
95 for(Int_t i=0;i<5;i++) fHistMassPtImpParTCDs[i]=0;
97 //___________________________________________________________________________
98 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra(const Char_t* name, AliRDHFCutsDStartoKpipi* cuts) :
99 AliAnalysisTaskSE(name),
115 fDoImpParDstar(kFALSE),
117 fLowerImpPar(-2000.),
121 // Constructor. Initialization of Inputs and Outputs
123 Info("AliAnalysisTaskSEDStarSpectra","Calling Constructor");
127 DefineOutput(1,TList::Class()); //conters
128 DefineOutput(2,TList::Class()); //All Entries output
129 DefineOutput(3,TList::Class()); //3sigma PID output
130 DefineOutput(4,AliRDHFCutsDStartoKpipi::Class()); //My private output
131 DefineOutput(5,AliNormalizationCounter::Class()); // normalization
134 //___________________________________________________________________________
135 AliAnalysisTaskSEDStarSpectra::~AliAnalysisTaskSEDStarSpectra() {
139 Info("~AliAnalysisTaskSEDStarSpectra","Calling Destructor");
147 for(Int_t i=0; i<5; i++){
148 delete fHistMassPtImpParTCDs[i];
151 //_________________________________________________
152 void AliAnalysisTaskSEDStarSpectra::Init(){
157 if(fDebug > 1) printf("AnalysisTaskSEDStarSpectra::Init() \n");
158 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
160 PostData(4,copyfCuts);
165 //_________________________________________________
166 void AliAnalysisTaskSEDStarSpectra::UserExec(Option_t *)
170 Error("UserExec","NO EVENT FOUND!");
176 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
177 TClonesArray *arrayDStartoD0pi=0;
181 if(!aodEvent && AODEvent() && IsStandardAOD()) {
182 // In case there is an AOD handler writing a standard AOD, use the AOD
183 // event in memory rather than the input (ESD) event.
184 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
185 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
186 // have to taken from the AOD event hold by the AliAODExtension
187 AliAODHandler* aodHandler = (AliAODHandler*)
188 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
189 if(aodHandler->GetExtensions()) {
190 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
191 AliAODEvent *aodFromExt = ext->GetAOD();
192 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
195 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
198 // fix for temporary bug in ESDfilter
199 // the AODs with null vertex pointer didn't pass the PhysSel
200 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
203 fCounter->StoreEvent(aodEvent,fCuts,fUseMCInfo);
205 // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD
206 TString trigclass=aodEvent->GetFiredTriggerClasses();
207 if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD")||trigclass.Contains("C0SMH-B-NOPF-ALL")) fCEvents->Fill(5);
209 if(!fCuts->IsEventSelected(aodEvent)) {
210 if(fCuts->GetWhyRejection()==6) // rejected for Z vertex
215 Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
219 // AliInfo(Form("Event %d",fEvents));
220 //if (fEvents%10000 ==0) AliInfo(Form("Event %d",fEvents));
222 // counters for efficiencies
223 Int_t icountReco = 0;
225 //D* and D0 prongs needed to MatchToMC method
226 Int_t pdgDgDStartoD0pi[2]={421,211};
227 Int_t pdgDgD0toKpi[2]={321,211};
229 // AOD primary vertex
230 AliAODVertex *vtx1 = (AliAODVertex*)aodEvent->GetPrimaryVertex();
232 if(vtx1->GetNContributors()<1) return;
234 if (!arrayDStartoD0pi){
235 AliInfo("Could not find array of HF vertices, skipping the event");
237 }else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
239 Int_t nSelectedAna =0;
240 Int_t nSelectedProd =0;
242 // loop over the tracks to search for candidates soft pion
243 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
245 // D* candidates and D0 from D*
246 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
247 if(!dstarD0pi->GetSecondaryVtx()) continue;
248 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
249 if (!theD0particle) continue;
252 TClonesArray *mcArray = 0;
253 AliAODMCHeader *mcHeader=0;
255 Bool_t isPrimary=kTRUE;
261 Float_t trueImpParXY=0.;
265 //MC array need for maching
266 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
268 AliError("Could not find Monte-Carlo in AOD");
272 mcHeader = (AliAODMCHeader*)aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName());
274 printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
277 // find associated MC particle for D* ->D0toKpi
278 Int_t mcLabel = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,mcArray);
281 AliAODMCParticle *partDSt = (AliAODMCParticle*)mcArray->At(mcLabel);
282 Int_t checkOrigin = CheckOrigin(mcArray,partDSt);
283 if(checkOrigin==5) isPrimary=kFALSE;
284 AliAODMCParticle *dg0 = (AliAODMCParticle*)mcArray->At(partDSt->GetDaughter(0));
285 AliAODMCParticle *dg01 = (AliAODMCParticle*)mcArray->At(dg0->GetDaughter(0));
290 pdgCode=TMath::Abs(partDSt->GetPdgCode());
292 trueImpParXY=GetTrueImpactParameterD0(mcHeader,mcArray,dg0)*1000.;
300 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
302 // quality selction on tracks and region of interest
303 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
304 if(!isTkSelected) continue;
306 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
309 //histos for impact par studies - D0!!!
310 Double_t ptCand = dstarD0pi->Get2Prong()->Pt();
311 Double_t invMass=dstarD0pi->InvMassD0();
312 Double_t impparXY=dstarD0pi->Get2Prong()->ImpParXY()*10000.;
314 Double_t arrayForSparse[3]={invMass,ptCand,impparXY};
315 Double_t arrayForSparseTrue[3]={invMass,ptCand,trueImpParXY};
317 // set the D0 search window bin by bin - useful to calculate side band bkg
403 // check that we are close to signal in the DeltaM - here to save time for PbPb
404 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
405 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
406 Double_t invmassDelta = dstarD0pi->DeltaInvMass();
408 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>fPeakWindow) continue;
411 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
414 if(fDoImpParDstar && isSelected){
415 fHistMassPtImpParTCDs[0]->Fill(arrayForSparse);
416 if(isPrimary) fHistMassPtImpParTCDs[1]->Fill(arrayForSparse);
418 fHistMassPtImpParTCDs[2]->Fill(arrayForSparse);
419 fHistMassPtImpParTCDs[3]->Fill(arrayForSparseTrue);
424 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelected,fOutputPID);
425 SideBandBackground(dstarD0pi,fCuts,isSelected, fOutputPID);
426 //WrongSignForDStar(dstarD0pi,fCuts,fOutputPID);
428 //swich off the PID selection
429 fCuts->SetUsePID(kFALSE);
430 Int_t isSelectedNoPID=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
431 fCuts->SetUsePID(kTRUE);
433 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelectedNoPID,fOutputPID);
434 SideBandBackground(dstarD0pi,fCuts,isSelectedNoPID, fOutputPID);
436 // rare D search ------
438 TLorentzVector lorentzTrack1(0,0,0,0); // lorentz 4 vector
439 TLorentzVector lorentzTrack2(0,0,0,0); // lorentz 4 vector
441 for (Int_t i=0; i<aodEvent->GetNTracks(); i++){
443 AliAODTrack* aodTrack = aodEvent->GetTrack(i);
445 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
446 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
447 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
450 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
452 lorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
453 lorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
456 Double_t d1mass = ((lorentzTrack1+lorentzTrack2).M());
457 //mass difference - at 0.4117 and 0.4566
458 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
463 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
468 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
469 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
471 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
474 PostData(2,fOutputAll);
475 PostData(3,fOutputPID);
476 PostData(5,fCounter);
479 //________________________________________ terminate ___________________________
480 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
482 // The Terminate() function is the last function to be called during
483 // a query. It always runs on the client, it can be used to present
484 // the results graphically or save the results to file.
486 //Info("Terminate","");
487 AliAnalysisTaskSE::Terminate();
489 fOutput = dynamic_cast<TList*> (GetOutputData(1));
491 printf("ERROR: fOutput not available\n");
495 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
496 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
497 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
499 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
501 printf("ERROR: fOutputAll not available\n");
504 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
506 printf("ERROR: fOutputPID not available\n");
513 //___________________________________________________________________________
514 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
516 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
520 fOutput = new TList();
522 fOutput->SetName("chist0");
524 fOutputAll = new TList();
525 fOutputAll->SetOwner();
526 fOutputAll->SetName("listAll");
528 fOutputPID = new TList();
529 fOutputPID->SetOwner();
530 fOutputPID->SetName("listPID");
535 //Counter for Normalization
536 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
539 if(fDoImpParDstar) CreateImpactParameterHistos();
542 PostData(2,fOutputAll);
543 PostData(3,fOutputPID);
547 //___________________________________ hiostograms _______________________________________
548 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
551 fCEvents = new TH1F("fCEvents","conter",11,0,11);
552 fCEvents->SetStats(kTRUE);
553 fCEvents->GetXaxis()->SetTitle("1");
554 fCEvents->GetYaxis()->SetTitle("counts");
555 fOutput->Add(fCEvents);
557 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
558 fOutput->Add(fTrueDiff2);
560 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
561 fOutput->Add(fDeltaMassD1);
563 const Int_t nhist=14;
564 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
566 for(Int_t i=-2;i<nhist;i++){
567 nameMass="histDeltaMass_";
569 nameSgn="histDeltaSgn_";
571 nameBkg="histDeltaBkg_";
575 nameMass="histDeltaMass";
576 nameSgn="histDeltaSgn";
577 nameBkg="histDeltaBkg";
580 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
581 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
582 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
584 nameMass="histD0Mass_";
586 nameSgn="histD0Sgn_";
588 nameBkg="histD0Bkg_";
592 nameMass="histD0Mass";
597 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
598 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
599 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
601 nameMass="histDstarMass_";
603 nameSgn="histDstarSgn_";
605 nameBkg="histDstarBkg_";
609 nameMass="histDstarMass";
610 nameSgn="histDstarSgn";
611 nameBkg="histDstarBkg";
614 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
615 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
616 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
618 nameMass="histSideBandMass_";
621 nameMass="histSideBandMass";
624 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
626 nameMass="histWrongSignMass_";
629 nameMass="histWrongSignMass";
632 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
635 spectrumMass->Sumw2();
636 spectrumSgn->Sumw2();
637 spectrumBkg->Sumw2();
639 spectrumMass->SetLineColor(6);
640 spectrumSgn->SetLineColor(2);
641 spectrumBkg->SetLineColor(4);
643 spectrumMass->SetMarkerStyle(20);
644 spectrumSgn->SetMarkerStyle(20);
645 spectrumBkg->SetMarkerStyle(20);
646 spectrumMass->SetMarkerSize(0.6);
647 spectrumSgn->SetMarkerSize(0.6);
648 spectrumBkg->SetMarkerSize(0.6);
649 spectrumMass->SetMarkerColor(6);
650 spectrumSgn->SetMarkerColor(2);
651 spectrumBkg->SetMarkerColor(4);
653 spectrumD0Mass->Sumw2();
654 spectrumD0Sgn->Sumw2();
655 spectrumD0Bkg->Sumw2();
657 spectrumD0Mass->SetLineColor(6);
658 spectrumD0Sgn->SetLineColor(2);
659 spectrumD0Bkg->SetLineColor(4);
661 spectrumD0Mass->SetMarkerStyle(20);
662 spectrumD0Sgn->SetMarkerStyle(20);
663 spectrumD0Bkg->SetMarkerStyle(20);
664 spectrumD0Mass->SetMarkerSize(0.6);
665 spectrumD0Sgn->SetMarkerSize(0.6);
666 spectrumD0Bkg->SetMarkerSize(0.6);
667 spectrumD0Mass->SetMarkerColor(6);
668 spectrumD0Sgn->SetMarkerColor(2);
669 spectrumD0Bkg->SetMarkerColor(4);
671 spectrumDstarMass->Sumw2();
672 spectrumDstarSgn->Sumw2();
673 spectrumDstarBkg->Sumw2();
675 spectrumDstarMass->SetLineColor(6);
676 spectrumDstarSgn->SetLineColor(2);
677 spectrumDstarBkg->SetLineColor(4);
679 spectrumDstarMass->SetMarkerStyle(20);
680 spectrumDstarSgn->SetMarkerStyle(20);
681 spectrumDstarBkg->SetMarkerStyle(20);
682 spectrumDstarMass->SetMarkerSize(0.6);
683 spectrumDstarSgn->SetMarkerSize(0.6);
684 spectrumDstarBkg->SetMarkerSize(0.6);
685 spectrumDstarMass->SetMarkerColor(6);
686 spectrumDstarSgn->SetMarkerColor(2);
687 spectrumDstarBkg->SetMarkerColor(4);
689 spectrumSideBandMass->Sumw2();
690 spectrumSideBandMass->SetLineColor(4);
691 spectrumSideBandMass->SetMarkerStyle(20);
692 spectrumSideBandMass->SetMarkerSize(0.6);
693 spectrumSideBandMass->SetMarkerColor(4);
695 spectrumWrongSignMass->Sumw2();
696 spectrumWrongSignMass->SetLineColor(4);
697 spectrumWrongSignMass->SetMarkerStyle(20);
698 spectrumWrongSignMass->SetMarkerSize(0.6);
699 spectrumWrongSignMass->SetMarkerColor(4);
701 TH1F* allMass = (TH1F*)spectrumMass->Clone();
702 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
703 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
705 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
706 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
707 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
709 fOutputAll->Add(allMass);
710 fOutputAll->Add(allSgn);
711 fOutputAll->Add(allBkg);
713 fOutputPID->Add(pidMass);
714 fOutputPID->Add(pidSgn);
715 fOutputPID->Add(pidBkg);
717 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
718 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
719 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
721 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
722 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
723 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
725 fOutputAll->Add(allD0Mass);
726 fOutputAll->Add(allD0Sgn);
727 fOutputAll->Add(allD0Bkg);
729 fOutputPID->Add(pidD0Mass);
730 fOutputPID->Add(pidD0Sgn);
731 fOutputPID->Add(pidD0Bkg);
733 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
734 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
735 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
737 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
738 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
739 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
741 fOutputAll->Add(allDstarMass);
742 fOutputAll->Add(allDstarSgn);
743 fOutputAll->Add(allDstarBkg);
745 fOutputPID->Add(pidDstarMass);
746 fOutputPID->Add(pidDstarSgn);
747 fOutputPID->Add(pidDstarBkg);
749 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
750 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
752 fOutputAll->Add(allSideBandMass);
753 fOutputPID->Add(pidSideBandMass);
755 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
756 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
758 fOutputAll->Add(allWrongSignMass);
759 fOutputPID->Add(pidWrongSignMass);
768 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
769 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
770 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
772 ptspectrumMass->Sumw2();
773 ptspectrumSgn->Sumw2();
774 ptspectrumBkg->Sumw2();
776 ptspectrumMass->SetLineColor(6);
777 ptspectrumSgn->SetLineColor(2);
778 ptspectrumBkg->SetLineColor(4);
780 ptspectrumMass->SetMarkerStyle(20);
781 ptspectrumSgn->SetMarkerStyle(20);
782 ptspectrumBkg->SetMarkerStyle(20);
783 ptspectrumMass->SetMarkerSize(0.6);
784 ptspectrumSgn->SetMarkerSize(0.6);
785 ptspectrumBkg->SetMarkerSize(0.6);
786 ptspectrumMass->SetMarkerColor(6);
787 ptspectrumSgn->SetMarkerColor(2);
788 ptspectrumBkg->SetMarkerColor(4);
790 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
791 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
792 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
794 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
795 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
796 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
798 fOutputAll->Add(ptallMass);
799 fOutputAll->Add(ptallSgn);
800 fOutputAll->Add(ptallBkg);
802 fOutputPID->Add(ptpidMass);
803 fOutputPID->Add(ptpidSgn);
804 fOutputPID->Add(ptpidBkg);
811 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
812 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
813 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
815 etaspectrumMass->Sumw2();
816 etaspectrumSgn->Sumw2();
817 etaspectrumBkg->Sumw2();
819 etaspectrumMass->SetLineColor(6);
820 etaspectrumSgn->SetLineColor(2);
821 etaspectrumBkg->SetLineColor(4);
823 etaspectrumMass->SetMarkerStyle(20);
824 etaspectrumSgn->SetMarkerStyle(20);
825 etaspectrumBkg->SetMarkerStyle(20);
826 etaspectrumMass->SetMarkerSize(0.6);
827 etaspectrumSgn->SetMarkerSize(0.6);
828 etaspectrumBkg->SetMarkerSize(0.6);
829 etaspectrumMass->SetMarkerColor(6);
830 etaspectrumSgn->SetMarkerColor(2);
831 etaspectrumBkg->SetMarkerColor(4);
833 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
834 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
835 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
837 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
838 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
839 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
841 fOutputAll->Add(etaallMass);
842 fOutputAll->Add(etaallSgn);
843 fOutputAll->Add(etaallBkg);
845 fOutputPID->Add(etapidMass);
846 fOutputPID->Add(etapidSgn);
847 fOutputPID->Add(etapidBkg);
851 //________________________________________________________________________
852 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
854 // Fill histos for D* spectrum
860 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
861 Double_t invmassD0 = part->InvMassD0();
862 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
865 Int_t ptbin=cuts->PtBin(part->Pt());
866 Double_t pt = part->Pt();
867 Double_t eta = part->Eta();
869 Double_t invmassDelta = part->DeltaInvMass();
870 Double_t invmassDstar = part->InvMassDstarKpipi();
873 Bool_t massInRange=kFALSE;
875 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
877 // delta M(Kpipi)-M(Kpi)
878 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
882 fillthis="histD0Sgn_";
884 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
885 fillthis="histD0Sgn";
886 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
887 fillthis="histDstarSgn_";
889 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
890 fillthis="histDstarSgn";
891 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
892 fillthis="histDeltaSgn_";
894 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
895 fillthis="histDeltaSgn";
896 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
899 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
901 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
905 fillthis="histD0Bkg_";
907 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
908 fillthis="histD0Bkg";
909 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
910 fillthis="histDstarBkg_";
912 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
913 fillthis="histDstarBkg";
914 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
915 fillthis="histDeltaBkg_";
917 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
918 fillthis="histDeltaBkg";
919 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
922 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
924 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
928 //no MC info, just cut selection
929 fillthis="histD0Mass_";
931 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
932 fillthis="histD0Mass";
933 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
934 fillthis="histDstarMass_";
936 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
937 fillthis="histDstarMass";
938 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
939 fillthis="histDeltaMass_";
941 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
942 fillthis="histDeltaMass";
943 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
947 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
949 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
954 //______________________________ side band background for D*___________________________________
955 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
957 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
958 // (expected detector resolution) on the left and right frm the D0 mass. Each band
959 // has a width of ~5 sigmas. Two band needed for opening angle considerations
963 Int_t ptbin=cuts->PtBin(part->Pt());
965 Bool_t massInRange=kFALSE;
967 // select the side bands intervall
968 Double_t invmassD0 = part->InvMassD0();
969 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
972 Double_t invmassDelta = part->DeltaInvMass();
973 if (TMath::Abs(invmassDelta-0.14557)<fPeakWindow) massInRange=kTRUE;
976 fillthis="histSideBandMass_";
978 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
979 fillthis="histSideBandMass";
980 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
984 //________________________________________________________________________________________________________________
985 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
987 // assign the wrong charge to the soft pion to create background
989 Int_t ptbin=cuts->PtBin(part->Pt());
991 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
992 Double_t invmassD0 = part->InvMassD0();
993 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
995 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
997 Int_t okD0WrongSign,okD0barWrongSign;
998 Double_t wrongMassD0=0.;
1000 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1006 okD0barWrongSign = 1;
1008 //if is D*+ than assume D0bar
1009 if(part->Charge()>0 && (isSelected ==1)) {
1012 if(part->Charge()<0 && (isSelected ==2)){
1013 okD0barWrongSign = 0;
1016 // assign the wrong mass in case the cuts return both D0 and D0bar
1017 if(part->Charge()>0 && (isSelected ==3)) {
1019 } else if(part->Charge()<0 && (isSelected ==3)){
1020 okD0barWrongSign = 0;
1024 if(okD0WrongSign!=0){
1025 wrongMassD0 = theD0particle->InvMassD0();
1026 }else if(okD0WrongSign==0){
1027 wrongMassD0 = theD0particle->InvMassD0bar();
1030 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1032 // wrong D* inv mass
1034 if (part->Charge()>0){
1035 e[0]=theD0particle->EProng(0,321);
1036 e[1]=theD0particle->EProng(1,211);
1038 e[0]=theD0particle->EProng(0,211);
1039 e[1]=theD0particle->EProng(1,321);
1041 e[2]=part->EProng(0,211);
1043 Double_t esum = e[0]+e[1]+e[2];
1044 Double_t pds = part->P();
1046 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1048 TString fillthis="";
1049 fillthis="histWrongSignMass_";
1051 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1052 fillthis="histWrongSignMass";
1053 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1057 //-------------------------------------------------------------------------------
1058 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, const AliAODMCParticle *mcPartCandidate) const {
1060 // checking whether the mother of the particles come from a charm or a bottom quark
1063 Int_t pdgGranma = 0;
1065 mother = mcPartCandidate->GetMother();
1067 Int_t abspdgGranma =0;
1068 Bool_t isFromB=kFALSE;
1069 Bool_t isQuarkFound=kFALSE;
1072 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1074 pdgGranma = mcGranma->GetPdgCode();
1075 abspdgGranma = TMath::Abs(pdgGranma);
1076 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1079 if(abspdgGranma==4 || abspdgGranma==5) isQuarkFound=kTRUE;
1080 mother = mcGranma->GetMother();
1082 AliError("Failed casting the mother particle!");
1087 if(isFromB) return 5;
1090 //-------------------------------------------------------------------------------------
1091 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(const AliAODMCHeader *mcHeader, TClonesArray* arrayMC, const AliAODMCParticle *partDp) const {
1092 // true impact parameter calculation
1094 Double_t vtxTrue[3];
1095 mcHeader->GetVertex(vtxTrue);
1097 partDp->XvYvZv(origD);
1098 Short_t charge=partDp->Charge();
1099 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1100 Int_t labelFirstDau = partDp->GetDaughter(0);
1102 Int_t nDau=partDp->GetNDaughters();
1106 for(Int_t iDau=0; iDau<2; iDau++){
1107 Int_t ind = labelFirstDau+iDau;
1108 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1110 AliError("Daughter particle not found in MC array");
1113 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1114 if(pdgCode==211 || pdgCode==321){
1115 pXdauTrue[theDau]=part->Px();
1116 pYdauTrue[theDau]=part->Py();
1117 pZdauTrue[theDau]=part->Pz();
1123 AliError("Wrong number of decay prongs");
1127 Double_t d0dummy[3]={0.,0.,0.};
1128 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1129 return aodD0MC.ImpParXY();
1132 //______________________________________________________-
1133 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1134 // Histos for impact paramter study
1136 Int_t nbins[3]={400,200,fNImpParBins};
1137 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1138 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1140 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1141 "Mass vs. pt vs.imppar - All",
1143 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1144 "Mass vs. pt vs.imppar - promptD",
1146 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1147 "Mass vs. pt vs.imppar - DfromB",
1149 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1150 "Mass vs. pt vs.true imppar -DfromB",
1152 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1153 "Mass vs. pt vs.imppar - backgr.",
1156 for(Int_t i=0; i<5;i++){
1157 fOutput->Add(fHistMassPtImpParTCDs[i]);