//
// AliAnalysisTaskSE for the extraction of signal(e.g D+) of heavy flavor
// decay candidates with the MC truth.
-// Author: Renu Bala, bala@to.infn.it
+// Authors: Renu Bala, bala@to.infn.it
+// F. Prino, prino@to.infn.it
+// G. Ortona, ortona@to.infn.it
/////////////////////////////////////////////////////////////
#include <TClonesArray.h>
#include <TList.h>
#include <TString.h>
#include <TH1F.h>
+#include <TDatabasePDG.h>
#include "AliAnalysisManager.h"
#include "AliAODHandler.h"
AliAnalysisTaskSEDplus::AliAnalysisTaskSEDplus():
AliAnalysisTaskSE(),
fOutput(0),
+fHistNEvents(0),
fNtupleDplus(0),
-fNtupleDplusbackg(0),
+fHistLS(0),
+fHistLStrip(0),
+fHistLStripcut(0),
+fHistOS(0),
+fHistOSbkg(0),
+fHistLSnoweight(0),
+fHistLSsinglecut(0),
fFillNtuple(kFALSE),
+fReadMC(kFALSE),
+fDoLS(kFALSE),
fVHF(0)
{
// Default constructor
//________________________________________________________________________
AliAnalysisTaskSEDplus::AliAnalysisTaskSEDplus(const char *name,Bool_t fillNtuple):
AliAnalysisTaskSE(name),
-fOutput(0),
+fOutput(0),
+fHistNEvents(0),
fNtupleDplus(0),
-fNtupleDplusbackg(0),
+fHistLS(0),
+fHistLStrip(0),
+fHistLStripcut(0),
+fHistOS(0),
+fHistOSbkg(0),
+fHistLSnoweight(0),
+fHistLSsinglecut(0),
fFillNtuple(fillNtuple),
+fReadMC(kFALSE),
+fDoLS(kFALSE),
fVHF(0)
{
// Default constructor
if(fFillNtuple){
// Output slot #2 writes into a TNtuple container
DefineOutput(2,TNtuple::Class()); //My private output
- // Output slot #3 writes into a TNtuple container
- DefineOutput(3,TNtuple::Class()); //My private output
}
}
delete fOutput;
fOutput = 0;
}
+ if(fNtupleDplus){
+ delete fNtupleDplus;
+ fNtupleDplus=0;
+ }
if (fVHF) {
delete fVHF;
fVHF = 0;
}
+
}
//________________________________________________________________________
fOutput->Add(hstc);
fOutput->Add(hbtc);
}
-
+ fHistNEvents = new TH1F("fHistNEvents", "Number of processed events; ; Events",3,-1.5,1.5);
+ fHistNEvents->Sumw2();
+ fHistNEvents->SetMinimum(0);
+ fOutput->Add(fHistNEvents);
+ if(fDoLS){
+ Double_t massDplus=TDatabasePDG::Instance()->GetParticle(411)->Mass();
+ fHistLS = new TH1F("fHistLS","fHistLS",100,massDplus-0.2,massDplus+0.2);
+ fHistLS->Sumw2();
+ fOutput->Add(fHistLS);
+
+ fHistLStrip = new TH1F("fHistLStrip","fHistLStrip",100,massDplus-0.2,massDplus+0.2);
+ fHistLStrip->Sumw2();
+ fOutput->Add(fHistLStrip);
+
+ fHistLStripcut = new TH1F("fHistLStripcut","fHistLStripcut",100,massDplus-0.2,massDplus+0.2);
+ fHistLStripcut->Sumw2();
+ fOutput->Add(fHistLStripcut);
+
+ fHistOS = new TH1F("fHistOS","fHistOS",100,massDplus-0.2,massDplus+0.2);
+ fHistOS->Sumw2();
+ fOutput->Add(fHistOS);
+
+ fHistOSbkg = new TH1F("fHistOSbkg","fHistOSbkg",100,massDplus-0.2,massDplus+0.2);
+ fHistOSbkg->Sumw2();
+ fOutput->Add(fHistOSbkg);
+
+ fHistLSnoweight = new TH1F("fHistLSnoweight","fHistLSnoweight",100,massDplus-0.2,massDplus+0.2);
+ fHistLSnoweight->Sumw2();
+ fOutput->Add(fHistLSnoweight);
+
+ fHistLSsinglecut = new TH1F("fHistLSsinglecut","fHistLSsinglecut",100,massDplus-0.2,massDplus+0.2);
+ fHistLSsinglecut->Sumw2();
+ fOutput->Add(fHistLSsinglecut);
+ }
+
if(fFillNtuple){
OpenFile(2); // 2 is the slot number of the ntuple
- fNtupleDplus = new TNtuple("fNtupleDplus","D +","pdg:Px:Py:Pz:Ptpi:PtK:Ptpi2:PtRec:PtTrue:PointingAngle:DecLeng:VxTrue:VxRec:VyRec:VzRec:InvMass:sigvert:d0Pi:d0K:d0Pi2");
- OpenFile(3); // 3 is the slot number of the ntuple
- fNtupleDplusbackg = new TNtuple("fNtupleDplusbackg","D + backg","Ptpibkg:Ptkbkg:Ptpi2bkg:PtRecbkg:PointingAnglebkg:DLbkg:VxRecbkg:VyRecbkg:VzRecbkg:InvMassbkg:sigvertbkg:d0Pibkg:d0Kbkg:d0Pi2bkg");
+ fNtupleDplus = new TNtuple("fNtupleDplus","D +","pdg:Px:Py:Pz:PtTrue:VxTrue:VyTrue:VzTrue:Ptpi:PtK:Ptpi2:PtRec:PointingAngle:DecLeng:VxRec:VyRec:VzRec:InvMass:sigvert:d0Pi:d0K:d0Pi2");
}
return;
AliAODEvent *aod = dynamic_cast<AliAODEvent*> (InputEvent());
+ fHistNEvents->Fill(0); // count event
+ // Post the data already here
+ PostData(1,fOutput);
+
TClonesArray *array3Prong = 0;
-
+ TClonesArray *arrayLikeSign =0;
if(!aod && AODEvent() && IsStandardAOD()) {
// In case there is an AOD handler writing a standard AOD, use the AOD
// event in memory rather than the input (ESD) event.
AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
AliAODEvent *aodFromExt = ext->GetAOD();
array3Prong=(TClonesArray*)aodFromExt->GetList()->FindObject("Charm3Prong");
+ arrayLikeSign=(TClonesArray*)aodFromExt->GetList()->FindObject("LikeSign3Prong");
}
} else {
array3Prong=(TClonesArray*)aod->GetList()->FindObject("Charm3Prong");
+ arrayLikeSign=(TClonesArray*)aod->GetList()->FindObject("LikeSign3Prong");
}
if(!array3Prong) {
printf("AliAnalysisTaskSEDplus::UserExec: Charm3Prong branch not found!\n");
return;
}
+ if(!arrayLikeSign) {
+ printf("AliAnalysisTaskSEDplus::UserExec: LikeSign3Prong branch not found!\n");
+ // do in any case the OS analysis.
+ }
+
+
+ TClonesArray *arrayMC=0;
+ AliAODMCHeader *mcHeader=0;
// AOD primary vertex
AliAODVertex *vtx1 = (AliAODVertex*)aod->GetPrimaryVertex();
// vtx1->Print();
// load MC particles
- TClonesArray *arrayMC =
- (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
- if(!arrayMC) {
- printf("AliAnalysisTaskSEDplus::UserExec: MC particles branch not found!\n");
- return;
- }
+ if(fReadMC){
+
+ arrayMC = (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
+ if(!arrayMC) {
+ printf("AliAnalysisTaskSEDplus::UserExec: MC particles branch not found!\n");
+ return;
+ }
// load MC header
- AliAODMCHeader *mcHeader =
- (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
- if(!mcHeader) {
- printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
- return;
+ mcHeader = (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
+ if(!mcHeader) {
+ printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
+ return;
+ }
}
+
Int_t n3Prong = array3Prong->GetEntriesFast();
if(fDebug>1) printf("Number of D+->Kpipi: %d\n",n3Prong);
-
-
+
+
+ Int_t nOS=0;
Int_t pdgDgDplustoKpipi[3]={321,211,211};
Double_t cutsDplus[12]={0.2,0.4,0.4,0.,0.,0.01,0.06,0.02,0.,0.85,0.,10000000000.};
for (Int_t i3Prong = 0; i3Prong < n3Prong; i3Prong++) {
d->SetOwnPrimaryVtx(vtx1);
unsetvtx=kTRUE;
}
+
if(d->SelectDplus(fVHF->GetDplusCuts())) {
Int_t iPtBin=0;
Double_t ptCand = d->Pt();
iPtBin=0;
cutsDplus[7]=0.08;
cutsDplus[8]=0.5;
- cutsDplus[10]=0.979;
+ cutsDplus[9]=0.979;
+ cutsDplus[10]=0.0000055;
}
else if(ptCand>2. && ptCand<3){
iPtBin=1;
cutsDplus[7]=0.08;
cutsDplus[8]=0.5;
cutsDplus[9]=0.991;
+ cutsDplus[10]=0.000005;
}else if(ptCand>3. && ptCand<5){
iPtBin=2;
cutsDplus[7]=0.1;
cutsDplus[8]=0.5;
cutsDplus[9]=0.9955;
+ cutsDplus[10]=0.0000035;
}else{
iPtBin=3;
cutsDplus[7]=0.1;
cutsDplus[8]=0.5;
cutsDplus[9]=0.997;
+ cutsDplus[10]=0.000001;
}
Bool_t passTightCuts=d->SelectDplus(cutsDplus);
- Int_t labDp = d->MatchToMC(411,arrayMC,3,pdgDgDplustoKpipi);
+ Int_t labDp=-1;
+ Float_t deltaPx=0.;
+ Float_t deltaPy=0.;
+ Float_t deltaPz=0.;
+ Float_t truePt=0.;
+ Float_t xDecay=0.;
+ Float_t yDecay=0.;
+ Float_t zDecay=0.;
+ Float_t pdgCode=-2;
+ if(fReadMC){
+ labDp = d->MatchToMC(411,arrayMC,3,pdgDgDplustoKpipi);
+ if(labDp>=0){
+ AliAODMCParticle *partDp = (AliAODMCParticle*)arrayMC->At(labDp);
+ AliAODMCParticle *dg0 = (AliAODMCParticle*)arrayMC->At(partDp->GetDaughter(0));
+ deltaPx=partDp->Px()-d->Px();
+ deltaPy=partDp->Py()-d->Py();
+ deltaPz=partDp->Pz()-d->Pz();
+ truePt=partDp->Pt();
+ xDecay=dg0->Xv();
+ yDecay=dg0->Yv();
+ zDecay=dg0->Zv();
+ pdgCode=TMath::Abs(partDp->GetPdgCode());
+ }else{
+ pdgCode=-1;
+ }
+ }
Double_t invMass=d->InvMassDplus();
TString hisNameA(Form("hMassPt%d",iPtBin));
((TH1F*)(fOutput->FindObject(hisNameATC)))->Fill(invMass);
}
+ Float_t tmp[22];
+ if(fFillNtuple){
+ tmp[0]=pdgCode;
+ tmp[1]=deltaPx;
+ tmp[2]=deltaPy;
+ tmp[3]=deltaPz;
+ tmp[4]=truePt;
+ tmp[5]=xDecay;
+ tmp[6]=yDecay;
+ tmp[7]=zDecay;
+ tmp[8]=d->PtProng(0);
+ tmp[9]=d->PtProng(1);
+ tmp[10]=d->PtProng(2);
+ tmp[11]=d->Pt();
+ tmp[12]=d->CosPointingAngle();
+ tmp[13]=d->DecayLength();
+ tmp[14]=d->Xv();
+ tmp[15]=d->Yv();
+ tmp[16]=d->Zv();
+ tmp[17]=d->InvMassDplus();
+ tmp[18]=d->GetSigmaVert();
+ tmp[19]=d->Getd0Prong(0);
+ tmp[20]=d->Getd0Prong(1);
+ tmp[21]=d->Getd0Prong(2);
+ fNtupleDplus->Fill(tmp);
+ PostData(2,fNtupleDplus);
+ }
- if(labDp>=0) {
- ((TH1F*)(fOutput->FindObject(hisNameS)))->Fill(invMass);
- if(passTightCuts){
- ((TH1F*)(fOutput->FindObject(hisNameSTC)))->Fill(invMass);
- }
- if(fFillNtuple){
- AliAODMCParticle *partDp = (AliAODMCParticle*)arrayMC->At(labDp);
- AliAODMCParticle *dg0 = (AliAODMCParticle*)arrayMC->At(partDp->GetDaughter(0));
- Float_t tmp[20];
- tmp[0]=TMath::Abs(partDp->GetPdgCode());
- tmp[1]=partDp->Px()-d->Px();
- tmp[2]=partDp->Py()-d->Py();
- tmp[3]=partDp->Pz()-d->Pz();
- tmp[4]=d->PtProng(0);
- tmp[5]=d->PtProng(1);
- tmp[6]=d->PtProng(2);
- tmp[7]=d->Pt();
- tmp[8]=partDp->Pt();
- tmp[9]=d->CosPointingAngle();
- tmp[10]=d->DecayLength();
- tmp[11]=dg0->Xv();
- tmp[12]=d->Xv();
- tmp[13]=d->Yv();
- tmp[14]=d->Zv();
- tmp[15]=d->InvMassDplus();
- tmp[16]=d->GetSigmaVert();
- tmp[17]=d->Getd0Prong(0);
- tmp[18]=d->Getd0Prong(1);
- tmp[19]=d->Getd0Prong(2);
- fNtupleDplus->Fill(tmp);
- PostData(2,fNtupleDplus);
- }
- }else{
- ((TH1F*)(fOutput->FindObject(hisNameB)))->Fill(invMass);
- if(passTightCuts){
- ((TH1F*)(fOutput->FindObject(hisNameBTC)))->Fill(invMass);
- }
- if(fFillNtuple){
- Float_t tmpbkg[14];
- tmpbkg[0]=d->PtProng(0);
- tmpbkg[1]=d->PtProng(1);
- tmpbkg[2]=d->PtProng(2);
- tmpbkg[3]=d->Pt();
- tmpbkg[4]=d->CosPointingAngle();
- tmpbkg[5]=d->DecayLength();
- tmpbkg[6]=d->Xv();
- tmpbkg[7]=d->Yv();
- tmpbkg[8]=d->Zv();
- tmpbkg[9]=d->InvMassDplus();
- tmpbkg[10]=d->GetSigmaVert();
- tmpbkg[11]=d->Getd0Prong(0);
- tmpbkg[12]=d->Getd0Prong(1);
- tmpbkg[13]=d->Getd0Prong(2);
- fNtupleDplusbackg->Fill(tmpbkg);
- PostData(3,fNtupleDplusbackg);
+ if(fReadMC){
+ if(labDp>=0) {
+ ((TH1F*)(fOutput->FindObject(hisNameS)))->Fill(invMass);
+ if(passTightCuts){
+ ((TH1F*)(fOutput->FindObject(hisNameSTC)))->Fill(invMass);
+ }
+
+ }else{
+ ((TH1F*)(fOutput->FindObject(hisNameB)))->Fill(invMass);
+ if(passTightCuts){
+ ((TH1F*)(fOutput->FindObject(hisNameBTC)))->Fill(invMass);
+ }
+ fHistOSbkg->Fill(invMass);
}
}
- PostData(1,fOutput);
+
+ fHistOS->Fill(invMass);
+ nOS++;
}
if(unsetvtx) d->UnsetOwnPrimaryVtx();
}
-
+
+ //start LS analysis
+ if(fDoLS && arrayLikeSign) LSAnalysis(array3Prong,arrayLikeSign,aod,vtx1,nOS);
+
+ PostData(1,fOutput);
return;
}
-//________________________________________________________________________
+
+
+//_________________________________________________________________
+void AliAnalysisTaskSEDplus::LSAnalysis(TClonesArray *arrayOppositeSign,TClonesArray *arrayLikeSign,AliAODEvent *aod,AliAODVertex *vtx1, Int_t nDplusOS){
+
+/*
+ * Fill the Like Sign histograms
+ */
+
+
+
+
+ //count pos/neg tracks
+ Int_t nPosTrks=0,nNegTrks=0;
+ //counter for particles passing single particle cuts
+ Int_t nspcplus=0;
+ Int_t nspcminus=0;
+
+ for(Int_t it=0;it<aod->GetNumberOfTracks();it++) {
+ AliAODTrack *track = aod->GetTrack(it);
+ if(track->Charge()>0){
+ nPosTrks++;
+ if(track->Pt()>=0.4){
+ nspcplus++;
+ }
+ }else{
+ nNegTrks++;
+ if(track->Pt()>=0.4){
+ nspcminus++;
+ }
+ }
+ }
+
+ Int_t nOStriplets = arrayOppositeSign->GetEntriesFast();
+
+ Int_t nDplusLS=0;
+ Int_t nLikeSign = arrayLikeSign->GetEntriesFast();
+
+ for(Int_t iLikeSign = 0; iLikeSign < nLikeSign; iLikeSign++) {
+ AliAODRecoDecayHF3Prong *d = (AliAODRecoDecayHF3Prong*)arrayLikeSign->UncheckedAt(iLikeSign);
+ Bool_t unsetvtx=kFALSE;
+ if(!d->GetOwnPrimaryVtx()) {
+ d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
+ unsetvtx=kTRUE;
+ }
+ if(d->SelectDplus(fVHF->GetDplusCuts()))nDplusLS++;
+ if(unsetvtx) d->UnsetOwnPrimaryVtx();
+ }
+
+ Float_t wei2=0;
+ if(nLikeSign!=0)wei2 = (Float_t)nOStriplets/(Float_t)nLikeSign;
+ Float_t wei3=0;
+ if(nDplusLS!=0)wei3 = (Float_t)nDplusOS/(Float_t)nDplusLS;
+
+ // loop over sign candidates
+ for(Int_t iLikeSign = 0; iLikeSign < nLikeSign; iLikeSign++) {
+ AliAODRecoDecayHF3Prong *d = (AliAODRecoDecayHF3Prong*)arrayLikeSign->UncheckedAt(iLikeSign);
+ Bool_t unsetvtx=kFALSE;
+ if(!d->GetOwnPrimaryVtx()) {
+ d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
+ unsetvtx=kTRUE;
+ }
+
+ if(d->SelectDplus(fVHF->GetDplusCuts())){
+ Int_t sign= d->GetCharge();
+ Float_t wei1=1;
+ Float_t wei4=1;
+ if(sign>0&&nPosTrks>2&&nspcplus>2){//wei* should be automatically protected, since to get a triplet there must be at least 3 good tracks in the event
+ wei1=3.*(Float_t)nNegTrks/((Float_t)nPosTrks-2.);
+ wei4=3.*(Float_t)nspcminus/((Float_t)nspcplus-2.);
+ }
+ if(sign<0&&nNegTrks>2&&nspcminus>2){
+ wei1=3.*(Float_t)nPosTrks/((Float_t)nNegTrks-2.);
+ wei4=3.*(Float_t)nspcplus/((Float_t)nspcminus-2.);
+ }
+ Double_t invMass=d->InvMassDplus();
+ fHistLS->Fill(invMass,wei1);
+ fHistLSnoweight->Fill(invMass);
+ fHistLStrip->Fill(invMass,wei2);
+ fHistLStripcut->Fill(invMass,wei3);
+ fHistLSsinglecut->Fill(invMass,wei4);
+ }
+ if(unsetvtx) d->UnsetOwnPrimaryVtx();
+ }
+
+ //printf("------------ N. of positive tracks in Event ----- %d \n", nPosTrks);
+ //printf("------------ N. of negative tracks in Event ----- %d \n", nNegTrks);
+
+ // printf("LS analysis...done\n");
+
+}
+
+//_________________________________________________________________
+
+
void AliAnalysisTaskSEDplus::Terminate(Option_t */*option*/)
{
// Terminate analysis
//
if(fDebug > 1) printf("AnalysisTaskSEDplus: Terminate() \n");
-
fOutput = dynamic_cast<TList*> (GetOutputData(1));
if (!fOutput) {
printf("ERROR: fOutput not available\n");
return;
}
-
+ fHistNEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fHistNEvents"));
if(fFillNtuple){
fNtupleDplus = dynamic_cast<TNtuple*>(GetOutputData(2));
- fNtupleDplusbackg = dynamic_cast<TNtuple*>(GetOutputData(3));
+ }
+ fHistOS = dynamic_cast<TH1F*>(fOutput->FindObject("fHistOS"));
+ fHistOSbkg = dynamic_cast<TH1F*>(fOutput->FindObject("fHistOSbkg"));
+ if(fDoLS){
+ fHistLS = dynamic_cast<TH1F*>(fOutput->FindObject("fHistLS"));
+ fHistLStrip = dynamic_cast<TH1F*>(fOutput->FindObject("fHistLStrip"));
+ fHistLStripcut = dynamic_cast<TH1F*>(fOutput->FindObject("fHistLStripcut"));
+ fHistLSnoweight = dynamic_cast<TH1F*>(fOutput->FindObject("fHistLSnoweight"));
+ fHistLSsinglecut = dynamic_cast<TH1F*>(fOutput->FindObject("fHistLSsinglecut"));
}
+
return;
}
-
git://git.uio.no / u/mrichter/AliRoot.git / commitdiff