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),
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");
165 for(Int_t i=0; i<5; i++){
166 delete fHistMassPtImpParTCDs[i];
169 //_________________________________________________
170 void AliAnalysisTaskSEDStarSpectra::Init(){
175 if(fDebug > 1) printf("AnalysisTaskSEDStarSpectra::Init() \n");
176 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
178 PostData(4,copyfCuts);
183 //_________________________________________________
184 void AliAnalysisTaskSEDStarSpectra::UserExec(Option_t *)
188 Error("UserExec","NO EVENT FOUND!");
194 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
195 TClonesArray *arrayDStartoD0pi=0;
199 if(!aodEvent && AODEvent() && IsStandardAOD()) {
200 // In case there is an AOD handler writing a standard AOD, use the AOD
201 // event in memory rather than the input (ESD) event.
202 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
203 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
204 // have to taken from the AOD event hold by the AliAODExtension
205 AliAODHandler* aodHandler = (AliAODHandler*)
206 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
207 if(aodHandler->GetExtensions()) {
208 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
209 AliAODEvent *aodFromExt = ext->GetAOD();
210 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
213 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
216 // fix for temporary bug in ESDfilter
217 // the AODs with null vertex pointer didn't pass the PhysSel
218 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
221 fCounter->StoreEvent(aodEvent,fCuts,fUseMCInfo);
223 // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD
224 TString trigclass=aodEvent->GetFiredTriggerClasses();
225 if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD")||trigclass.Contains("C0SMH-B-NOPF-ALL")) fCEvents->Fill(5);
227 if(!fCuts->IsEventSelected(aodEvent)) {
228 if(fCuts->GetWhyRejection()==6) // rejected for Z vertex
233 Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
237 // AliInfo(Form("Event %d",fEvents));
238 //if (fEvents%10000 ==0) AliInfo(Form("Event %d",fEvents));
240 // counters for efficiencies
241 Int_t icountReco = 0;
243 //D* and D0 prongs needed to MatchToMC method
244 Int_t pdgDgDStartoD0pi[2]={421,211};
245 Int_t pdgDgD0toKpi[2]={321,211};
247 // AOD primary vertex
248 AliAODVertex *vtx1 = (AliAODVertex*)aodEvent->GetPrimaryVertex();
250 if(vtx1->GetNContributors()<1) return;
252 if (!arrayDStartoD0pi){
253 AliInfo("Could not find array of HF vertices, skipping the event");
255 }else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
257 Int_t nSelectedAna =0;
258 Int_t nSelectedProd =0;
260 // loop over the tracks to search for candidates soft pion
261 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
263 // D* candidates and D0 from D*
264 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
265 if(!dstarD0pi->GetSecondaryVtx()) continue;
266 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
267 if (!theD0particle) continue;
270 TClonesArray *mcArray = 0;
271 AliAODMCHeader *mcHeader=0;
273 Bool_t isPrimary=kTRUE;
279 Float_t trueImpParXY=0.;
283 //MC array need for maching
284 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
286 AliError("Could not find Monte-Carlo in AOD");
290 mcHeader = (AliAODMCHeader*)aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName());
292 printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
295 // find associated MC particle for D* ->D0toKpi
296 Int_t mcLabel = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,mcArray);
299 AliAODMCParticle *partDSt = (AliAODMCParticle*)mcArray->At(mcLabel);
300 Int_t checkOrigin = CheckOrigin(mcArray,partDSt);
301 if(checkOrigin==5) isPrimary=kFALSE;
302 AliAODMCParticle *dg0 = (AliAODMCParticle*)mcArray->At(partDSt->GetDaughter(0));
303 AliAODMCParticle *dg0_1 = (AliAODMCParticle*)mcArray->At(dg0->GetDaughter(0));
308 pdgCode=TMath::Abs(partDSt->GetPdgCode());
310 trueImpParXY=GetTrueImpactParameterD0(mcHeader,mcArray,dg0)*1000.;
318 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
320 // quality selction on tracks and region of interest
321 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
322 if(!isTkSelected) continue;
324 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
327 //histos for impact par studies - D0!!!
328 Double_t ptCand = dstarD0pi->Get2Prong()->Pt();
329 Double_t invMass=dstarD0pi->InvMassD0();
330 Double_t impparXY=dstarD0pi->Get2Prong()->ImpParXY()*10000.;
332 Double_t arrayForSparse[3]={invMass,ptCand,impparXY};
333 Double_t arrayForSparseTrue[3]={invMass,ptCand,trueImpParXY};
335 // set the D0 search window bin by bin - useful to calculate side band bkg
421 // check that we are close to signal in the DeltaM - here to save time for PbPb
422 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
423 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
424 Double_t invmassDelta = dstarD0pi->DeltaInvMass();
426 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>fPeakWindow) continue;
429 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
432 if(fDoImpParDstar && isSelected){
433 fHistMassPtImpParTCDs[0]->Fill(arrayForSparse);
434 if(isPrimary) fHistMassPtImpParTCDs[1]->Fill(arrayForSparse);
436 fHistMassPtImpParTCDs[2]->Fill(arrayForSparse);
437 fHistMassPtImpParTCDs[3]->Fill(arrayForSparseTrue);
442 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelected,fOutputPID);
443 SideBandBackground(dstarD0pi,fCuts,isSelected, fOutputPID);
444 //WrongSignForDStar(dstarD0pi,fCuts,fOutputPID);
446 //swich off the PID selection
447 fCuts->SetUsePID(kFALSE);
448 Int_t isSelectedNoPID=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
449 fCuts->SetUsePID(kTRUE);
451 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelectedNoPID,fOutputPID);
452 SideBandBackground(dstarD0pi,fCuts,isSelectedNoPID, fOutputPID);
454 // rare D search ------
456 TLorentzVector LorentzTrack1(0,0,0,0); // lorentz 4 vector
457 TLorentzVector LorentzTrack2(0,0,0,0); // lorentz 4 vector
459 for (Int_t i=0; i<aodEvent->GetNTracks(); i++){
461 AliAODTrack* aodTrack = aodEvent->GetTrack(i);
463 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
464 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
465 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
468 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
470 LorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
471 LorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
474 Double_t d1mass = ((LorentzTrack1+LorentzTrack2).M());
475 //mass difference - at 0.4117 and 0.4566
476 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
481 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
486 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
487 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
489 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
492 PostData(2,fOutputAll);
493 PostData(3,fOutputPID);
494 PostData(5,fCounter);
497 //________________________________________ terminate ___________________________
498 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
500 // The Terminate() function is the last function to be called during
501 // a query. It always runs on the client, it can be used to present
502 // the results graphically or save the results to file.
504 //Info("Terminate","");
505 AliAnalysisTaskSE::Terminate();
507 fOutput = dynamic_cast<TList*> (GetOutputData(1));
509 printf("ERROR: fOutput not available\n");
513 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
514 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
515 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
517 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
519 printf("ERROR: fOutputAll not available\n");
522 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
524 printf("ERROR: fOutputPID not available\n");
531 //___________________________________________________________________________
532 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
534 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
538 fOutput = new TList();
540 fOutput->SetName("chist0");
542 fOutputAll = new TList();
543 fOutputAll->SetOwner();
544 fOutputAll->SetName("listAll");
546 fOutputPID = new TList();
547 fOutputPID->SetOwner();
548 fOutputPID->SetName("listPID");
553 //Counter for Normalization
554 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
557 if(fDoImpParDstar) CreateImpactParameterHistos();
560 PostData(2,fOutputAll);
561 PostData(3,fOutputPID);
565 //___________________________________ hiostograms _______________________________________
566 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
568 fCEvents = new TH1F("fCEvents","conter",11,0,11);
569 fCEvents->SetStats(kTRUE);
570 fCEvents->GetXaxis()->SetTitle("1");
571 fCEvents->GetYaxis()->SetTitle("counts");
572 fOutput->Add(fCEvents);
574 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
575 fOutput->Add(fTrueDiff2);
577 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
578 fOutput->Add(fDeltaMassD1);
580 const Int_t nhist=14;
581 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
583 for(Int_t i=-2;i<nhist;i++){
584 nameMass="histDeltaMass_";
586 nameSgn="histDeltaSgn_";
588 nameBkg="histDeltaBkg_";
592 nameMass="histDeltaMass";
593 nameSgn="histDeltaSgn";
594 nameBkg="histDeltaBkg";
597 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
598 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
599 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",200,0.1,0.2);
601 nameMass="histD0Mass_";
603 nameSgn="histD0Sgn_";
605 nameBkg="histD0Bkg_";
609 nameMass="histD0Mass";
614 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
615 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
616 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
618 nameMass="histDstarMass_";
620 nameSgn="histDstarSgn_";
622 nameBkg="histDstarBkg_";
626 nameMass="histDstarMass";
627 nameSgn="histDstarSgn";
628 nameBkg="histDstarBkg";
631 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
632 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
633 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
635 nameMass="histSideBandMass_";
638 nameMass="histSideBandMass";
641 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
643 nameMass="histWrongSignMass_";
646 nameMass="histWrongSignMass";
649 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
652 spectrumMass->Sumw2();
653 spectrumSgn->Sumw2();
654 spectrumBkg->Sumw2();
656 spectrumMass->SetLineColor(6);
657 spectrumSgn->SetLineColor(2);
658 spectrumBkg->SetLineColor(4);
660 spectrumMass->SetMarkerStyle(20);
661 spectrumSgn->SetMarkerStyle(20);
662 spectrumBkg->SetMarkerStyle(20);
663 spectrumMass->SetMarkerSize(0.6);
664 spectrumSgn->SetMarkerSize(0.6);
665 spectrumBkg->SetMarkerSize(0.6);
666 spectrumMass->SetMarkerColor(6);
667 spectrumSgn->SetMarkerColor(2);
668 spectrumBkg->SetMarkerColor(4);
670 spectrumD0Mass->Sumw2();
671 spectrumD0Sgn->Sumw2();
672 spectrumD0Bkg->Sumw2();
674 spectrumD0Mass->SetLineColor(6);
675 spectrumD0Sgn->SetLineColor(2);
676 spectrumD0Bkg->SetLineColor(4);
678 spectrumD0Mass->SetMarkerStyle(20);
679 spectrumD0Sgn->SetMarkerStyle(20);
680 spectrumD0Bkg->SetMarkerStyle(20);
681 spectrumD0Mass->SetMarkerSize(0.6);
682 spectrumD0Sgn->SetMarkerSize(0.6);
683 spectrumD0Bkg->SetMarkerSize(0.6);
684 spectrumD0Mass->SetMarkerColor(6);
685 spectrumD0Sgn->SetMarkerColor(2);
686 spectrumD0Bkg->SetMarkerColor(4);
688 spectrumDstarMass->Sumw2();
689 spectrumDstarSgn->Sumw2();
690 spectrumDstarBkg->Sumw2();
692 spectrumDstarMass->SetLineColor(6);
693 spectrumDstarSgn->SetLineColor(2);
694 spectrumDstarBkg->SetLineColor(4);
696 spectrumDstarMass->SetMarkerStyle(20);
697 spectrumDstarSgn->SetMarkerStyle(20);
698 spectrumDstarBkg->SetMarkerStyle(20);
699 spectrumDstarMass->SetMarkerSize(0.6);
700 spectrumDstarSgn->SetMarkerSize(0.6);
701 spectrumDstarBkg->SetMarkerSize(0.6);
702 spectrumDstarMass->SetMarkerColor(6);
703 spectrumDstarSgn->SetMarkerColor(2);
704 spectrumDstarBkg->SetMarkerColor(4);
706 spectrumSideBandMass->Sumw2();
707 spectrumSideBandMass->SetLineColor(4);
708 spectrumSideBandMass->SetMarkerStyle(20);
709 spectrumSideBandMass->SetMarkerSize(0.6);
710 spectrumSideBandMass->SetMarkerColor(4);
712 spectrumWrongSignMass->Sumw2();
713 spectrumWrongSignMass->SetLineColor(4);
714 spectrumWrongSignMass->SetMarkerStyle(20);
715 spectrumWrongSignMass->SetMarkerSize(0.6);
716 spectrumWrongSignMass->SetMarkerColor(4);
718 TH1F* allMass = (TH1F*)spectrumMass->Clone();
719 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
720 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
722 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
723 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
724 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
726 fOutputAll->Add(allMass);
727 fOutputAll->Add(allSgn);
728 fOutputAll->Add(allBkg);
730 fOutputPID->Add(pidMass);
731 fOutputPID->Add(pidSgn);
732 fOutputPID->Add(pidBkg);
734 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
735 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
736 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
738 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
739 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
740 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
742 fOutputAll->Add(allD0Mass);
743 fOutputAll->Add(allD0Sgn);
744 fOutputAll->Add(allD0Bkg);
746 fOutputPID->Add(pidD0Mass);
747 fOutputPID->Add(pidD0Sgn);
748 fOutputPID->Add(pidD0Bkg);
750 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
751 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
752 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
754 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
755 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
756 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
758 fOutputAll->Add(allDstarMass);
759 fOutputAll->Add(allDstarSgn);
760 fOutputAll->Add(allDstarBkg);
762 fOutputPID->Add(pidDstarMass);
763 fOutputPID->Add(pidDstarSgn);
764 fOutputPID->Add(pidDstarBkg);
766 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
767 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
769 fOutputAll->Add(allSideBandMass);
770 fOutputPID->Add(pidSideBandMass);
772 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
773 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
775 fOutputAll->Add(allWrongSignMass);
776 fOutputPID->Add(pidWrongSignMass);
785 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
786 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
787 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
789 ptspectrumMass->Sumw2();
790 ptspectrumSgn->Sumw2();
791 ptspectrumBkg->Sumw2();
793 ptspectrumMass->SetLineColor(6);
794 ptspectrumSgn->SetLineColor(2);
795 ptspectrumBkg->SetLineColor(4);
797 ptspectrumMass->SetMarkerStyle(20);
798 ptspectrumSgn->SetMarkerStyle(20);
799 ptspectrumBkg->SetMarkerStyle(20);
800 ptspectrumMass->SetMarkerSize(0.6);
801 ptspectrumSgn->SetMarkerSize(0.6);
802 ptspectrumBkg->SetMarkerSize(0.6);
803 ptspectrumMass->SetMarkerColor(6);
804 ptspectrumSgn->SetMarkerColor(2);
805 ptspectrumBkg->SetMarkerColor(4);
807 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
808 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
809 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
811 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
812 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
813 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
815 fOutputAll->Add(ptallMass);
816 fOutputAll->Add(ptallSgn);
817 fOutputAll->Add(ptallBkg);
819 fOutputPID->Add(ptpidMass);
820 fOutputPID->Add(ptpidSgn);
821 fOutputPID->Add(ptpidBkg);
828 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
829 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
830 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
832 etaspectrumMass->Sumw2();
833 etaspectrumSgn->Sumw2();
834 etaspectrumBkg->Sumw2();
836 etaspectrumMass->SetLineColor(6);
837 etaspectrumSgn->SetLineColor(2);
838 etaspectrumBkg->SetLineColor(4);
840 etaspectrumMass->SetMarkerStyle(20);
841 etaspectrumSgn->SetMarkerStyle(20);
842 etaspectrumBkg->SetMarkerStyle(20);
843 etaspectrumMass->SetMarkerSize(0.6);
844 etaspectrumSgn->SetMarkerSize(0.6);
845 etaspectrumBkg->SetMarkerSize(0.6);
846 etaspectrumMass->SetMarkerColor(6);
847 etaspectrumSgn->SetMarkerColor(2);
848 etaspectrumBkg->SetMarkerColor(4);
850 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
851 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
852 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
854 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
855 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
856 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
858 fOutputAll->Add(etaallMass);
859 fOutputAll->Add(etaallSgn);
860 fOutputAll->Add(etaallBkg);
862 fOutputPID->Add(etapidMass);
863 fOutputPID->Add(etapidSgn);
864 fOutputPID->Add(etapidBkg);
868 //________________________________________________________________________
869 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
871 // Fill histos for D* spectrum
877 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
878 Double_t invmassD0 = part->InvMassD0();
879 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
882 Int_t ptbin=cuts->PtBin(part->Pt());
883 Double_t pt = part->Pt();
884 Double_t eta = part->Eta();
886 Double_t invmassDelta = part->DeltaInvMass();
887 Double_t invmassDstar = part->InvMassDstarKpipi();
890 Bool_t massInRange=kFALSE;
892 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
894 // delta M(Kpipi)-M(Kpi)
895 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
899 fillthis="histD0Sgn_";
901 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
902 fillthis="histD0Sgn";
903 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
904 fillthis="histDstarSgn_";
906 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
907 fillthis="histDstarSgn";
908 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
909 fillthis="histDeltaSgn_";
911 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
912 fillthis="histDeltaSgn";
913 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
916 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
918 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
922 fillthis="histD0Bkg_";
924 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
925 fillthis="histD0Bkg";
926 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
927 fillthis="histDstarBkg_";
929 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
930 fillthis="histDstarBkg";
931 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
932 fillthis="histDeltaBkg_";
934 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
935 fillthis="histDeltaBkg";
936 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
939 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
941 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
945 //no MC info, just cut selection
946 fillthis="histD0Mass_";
948 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
949 fillthis="histD0Mass";
950 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
951 fillthis="histDstarMass_";
953 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
954 fillthis="histDstarMass";
955 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
956 fillthis="histDeltaMass_";
958 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
959 fillthis="histDeltaMass";
960 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
964 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
966 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
971 //______________________________ side band background for D*___________________________________
972 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
974 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
975 // (expected detector resolution) on the left and right frm the D0 mass. Each band
976 // has a width of ~5 sigmas. Two band needed for opening angle considerations
980 Int_t ptbin=cuts->PtBin(part->Pt());
982 Bool_t massInRange=kFALSE;
984 // select the side bands intervall
985 Double_t invmassD0 = part->InvMassD0();
986 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
989 Double_t invmassDelta = part->DeltaInvMass();
990 if (TMath::Abs(invmassDelta-0.14557)<fPeakWindow) massInRange=kTRUE;
993 fillthis="histSideBandMass_";
995 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
996 fillthis="histSideBandMass";
997 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
1001 //________________________________________________________________________________________________________________
1002 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
1004 // assign the wrong charge to the soft pion to create background
1006 Int_t ptbin=cuts->PtBin(part->Pt());
1008 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1009 Double_t invmassD0 = part->InvMassD0();
1010 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
1012 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
1014 Int_t okD0WrongSign,okD0barWrongSign;
1015 Double_t wrongMassD0=0.;
1017 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1023 okD0barWrongSign = 1;
1025 //if is D*+ than assume D0bar
1026 if(part->Charge()>0 && (isSelected ==1)) {
1029 if(part->Charge()<0 && (isSelected ==2)){
1030 okD0barWrongSign = 0;
1033 // assign the wrong mass in case the cuts return both D0 and D0bar
1034 if(part->Charge()>0 && (isSelected ==3)) {
1036 } else if(part->Charge()<0 && (isSelected ==3)){
1037 okD0barWrongSign = 0;
1041 if(okD0WrongSign!=0){
1042 wrongMassD0 = theD0particle->InvMassD0();
1043 }else if(okD0WrongSign==0){
1044 wrongMassD0 = theD0particle->InvMassD0bar();
1047 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1049 // wrong D* inv mass
1051 if (part->Charge()>0){
1052 e[0]=theD0particle->EProng(0,321);
1053 e[1]=theD0particle->EProng(1,211);
1055 e[0]=theD0particle->EProng(0,211);
1056 e[1]=theD0particle->EProng(1,321);
1058 e[2]=part->EProng(0,211);
1060 Double_t esum = e[0]+e[1]+e[2];
1061 Double_t pds = part->P();
1063 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1065 TString fillthis="";
1066 fillthis="histWrongSignMass_";
1068 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1069 fillthis="histWrongSignMass";
1070 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1074 //-------------------------------------------------------------------------------
1075 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, AliAODMCParticle *mcPartCandidate) const {
1077 // checking whether the mother of the particles come from a charm or a bottom quark
1080 Int_t pdgGranma = 0;
1082 mother = mcPartCandidate->GetMother();
1084 Int_t abspdgGranma =0;
1085 Bool_t isFromB=kFALSE;
1086 Bool_t isQuarkFound=kFALSE;
1089 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1091 pdgGranma = mcGranma->GetPdgCode();
1092 abspdgGranma = TMath::Abs(pdgGranma);
1093 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1096 if(abspdgGranma==4 || abspdgGranma==5) isQuarkFound=kTRUE;
1097 mother = mcGranma->GetMother();
1099 AliError("Failed casting the mother particle!");
1104 if(isFromB) return 5;
1107 //-------------------------------------------------------------------------------------
1108 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(AliAODMCHeader *mcHeader, TClonesArray* arrayMC, AliAODMCParticle *partDp) const {
1109 // true impact parameter calculation
1111 Double_t vtxTrue[3];
1112 mcHeader->GetVertex(vtxTrue);
1114 partDp->XvYvZv(origD);
1115 Short_t charge=partDp->Charge();
1116 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1117 Int_t labelFirstDau = partDp->GetDaughter(0);
1119 Int_t nDau=partDp->GetNDaughters();
1123 for(Int_t iDau=0; iDau<2; iDau++){
1124 Int_t ind = labelFirstDau+iDau;
1125 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1127 AliError("Daughter particle not found in MC array");
1130 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1131 if(pdgCode==211 || pdgCode==321){
1132 pXdauTrue[theDau]=part->Px();
1133 pYdauTrue[theDau]=part->Py();
1134 pZdauTrue[theDau]=part->Pz();
1140 AliError("Wrong number of decay prongs");
1144 Double_t d0dummy[3]={0.,0.,0.};
1145 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1146 return aodD0MC.ImpParXY();
1149 //______________________________________________________-
1150 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1151 // Histos for impact paramter study
1153 Int_t nbins[3]={400,200,fNImpParBins};
1154 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1155 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1157 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1158 "Mass vs. pt vs.imppar - All",
1160 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1161 "Mass vs. pt vs.imppar - promptD",
1163 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1164 "Mass vs. pt vs.imppar - DfromB",
1166 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1167 "Mass vs. pt vs.true imppar -DfromB",
1169 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1170 "Mass vs. pt vs.imppar - backgr.",
1173 for(Int_t i=0; i<5;i++){
1174 fOutput->Add(fHistMassPtImpParTCDs[i]);