* provided "as is" without express or implied warranty. *
**************************************************************************/
-//----------------------------------------------------------------------------------------------------------------------
+//----------------------------------------------------------------------------------------------------------------
// class AliResonanceKink
-// Base class for reconstructing resonances having at least one kaon-kink in their decay
-// products. It provides basic invariant mass plots as well as plots helping to calculate the corrections.
-// Usage: To analyse a resonance having a kaon in its decay products, an external configuration of the class
-// object must be made. Example of such a configuration can be found in the "macro" directory.
-// The analysis mode can be either ESD (esd and mc handlers needed) or MC (only mc handler) or DATA (esd only)
-//----------------------------------------------------------------------------------------------------------------------
+// Example of an analysis task for reconstructing resonances having at least one kaon-kink in their decay
+// products. It provides basic plots as well as plots helping to calculate the corrections.
+// Usage: To analyse a resonance having a kaon in its decay products, one has to modify the integer
+// variables resonancePDG, fdaughter1pdg and fdaughter2pdg accordingly as well as daughter1pdgMass and daughter2pdgMass.
+// Also, depending on the analysis mode (ESD or MC), fAnalysisType in the constructor must also be changed
+//-----------------------------------------------------------------------------------------------------------------
#include "TH2D.h"
#include "TParticle.h"
//________________________________________________________________________
AliResonanceKink::AliResonanceKink()
- : TObject(), fDebug(0), fListOfHistos(0), fOpeningAngle(0), fInvariantMass(0), fInvMassTrue(0), fPhiBothKinks(0), fetabins(0), floweta(0), fupeta(0), fRecPt(0), fRecEta(0), fRecEtaPt(0), fSimPt(0), fSimEta(0), fSimEtaPt(0), fSimPtKink(0), fSimEtaKink(0), fSimEtaPtKink(0),
- fhdr(0), fhdz(0), f1(0), f2(0), fAnalysisType(), fvtxz(0), fNbins(0), fLowX(0), fHighX(0), fdaughter1pdg(0), fdaughter2pdg(0), fresonancePDGcode(0), fMaxNSigmaToVertex(0), fMinPtTrackCut(0), fMaxDCAxy(0), fMaxDCAzaxis(0),
+ : TObject(), fDebug(0), fListOfHistos(0), fOpeningAngle(0), fInvariantMass(0), fInvMassTrue(0), fPhiBothKinks(0), fetabins(0), floweta(0), fupeta(0), fRecPt(0), fRecEta(0), fRecEtaPt(0), fSimPt(0), fSimEta(0), fSimEtaPt(0), fSimPtKink(0), fSimEtaKink(0), fSimEtaPtKink(0), f1(0), f2(0), fAnalysisType(), fvtxz(0), fNbins(0), fLowX(0), fHighX(0), fdaughter1pdg(0), fdaughter2pdg(0), fresonancePDGcode(0), fMaxNSigmaToVertex(0), fMinPtTrackCut(0), fMaxDCAxy(0), fMaxDCAzaxis(0),
fMinTPCclusters(0),fMaxChi2PerTPCcluster(0), fMaxCov0(0), fMaxCov2(0), fMaxCov5(0) , fMaxCov9(0), fMaxCov14(0) //, fTPCrefitFlag(kFALSE)
-, fInvmassPt(0), fInvmassPtTrue(0), fMCInvmassPt(0), fMCInvmassPtTrue(0), fminKinkRadius(0), fmaxKinkRadius(0), fminQt(0), fmaxQt(0), fptbins(0), flowpt(0), fupperpt(0)
+, fInvmassPt(0), fInvmassPtTrue(0), fMCInvmassPt(0), fMCInvmassPtTrue(0), fminKinkRadius(0), fmaxKinkRadius(0), fminQt(0), fmaxQt(0), fptbins(0), flowpt(0), fupperpt(0), fmaxAbsEtaCut(0)
{
// Constructor
}
//________________________________________________________________________
AliResonanceKink::AliResonanceKink(Int_t nbins, Float_t nlowx, Float_t nhighx, Int_t netabins, Float_t nloweta, Float_t nupeta, Int_t nptbins, Float_t nlowpt, Float_t nupperpt, Int_t daughter1, Int_t daughter2, Int_t resonancePDG)
- : TObject(), fDebug(0), fListOfHistos(0), fOpeningAngle(0), fInvariantMass(0), fInvMassTrue(0), fPhiBothKinks(0), fetabins(netabins), floweta(nloweta), fupeta(nupeta), fRecPt(0), fRecEta(0), fRecEtaPt(0), fSimPt(0), fSimEta(0), fSimEtaPt(0), fSimPtKink(0), fSimEtaKink(0), fSimEtaPtKink(0),
- fhdr(0), fhdz(0), f1(0), f2(0), fAnalysisType(), fvtxz(0), fNbins(nbins), fLowX(nlowx), fHighX(nhighx), fdaughter1pdg(daughter1), fdaughter2pdg(daughter2), fresonancePDGcode(resonancePDG), fMaxNSigmaToVertex(0), fMinPtTrackCut(0),
+ : TObject(), fDebug(0), fListOfHistos(0), fOpeningAngle(0), fInvariantMass(0), fInvMassTrue(0), fPhiBothKinks(0), fetabins(netabins), floweta(nloweta), fupeta(nupeta), fRecPt(0), fRecEta(0), fRecEtaPt(0), fSimPt(0), fSimEta(0), fSimEtaPt(0), fSimPtKink(0), fSimEtaKink(0), fSimEtaPtKink(0), f1(0), f2(0), fAnalysisType(), fvtxz(0), fNbins(nbins), fLowX(nlowx), fHighX(nhighx), fdaughter1pdg(daughter1), fdaughter2pdg(daughter2), fresonancePDGcode(resonancePDG), fMaxNSigmaToVertex(0), fMinPtTrackCut(0),
fMaxDCAxy(0), fMaxDCAzaxis(0), fMinTPCclusters(0), fMaxChi2PerTPCcluster(0), fMaxCov0(0), fMaxCov2(0), fMaxCov5(0), fMaxCov9(0), fMaxCov14(0) //, fTPCrefitFlag(kFALSE)
-, fInvmassPt(0), fInvmassPtTrue(0), fMCInvmassPt(0), fMCInvmassPtTrue(0), fminKinkRadius(0), fmaxKinkRadius(0), fminQt(0), fmaxQt(0), fptbins(nptbins), flowpt(nlowpt), fupperpt(nupperpt)
+, fInvmassPt(0), fInvmassPtTrue(0), fMCInvmassPt(0), fMCInvmassPtTrue(0), fminKinkRadius(0), fmaxKinkRadius(0), fminQt(0), fmaxQt(0), fptbins(nptbins), flowpt(nlowpt), fupperpt(nupperpt), fmaxAbsEtaCut(0)
{
// Constructor
fSimPtKink=new TH1D("fSimPtKink"," ", nptbins, nlowpt, nupperpt);
fSimEtaKink=new TH1D("fSimEtaKink"," ", netabins, nloweta, nupeta);
fSimEtaPtKink=new TH2D("fSimEtaPtKink"," ", nptbins, nlowpt, nupperpt, netabins, nloweta, nupeta);
- fhdr=new TH1D("fhdr"," ", 100,0.0,5.0);
- fhdz=new TH1D("fhdz"," ", 100,0.0,5.0);
f1=new TF1("f1","((atan([0]*[1]*(1.0/(sqrt((x^2)*(1.0-([1]^2))-([0]^2)*([1]^2))))))*180.)/[2]",1.1,10.0);
f1->SetParameter(0,0.493677);
if(fSimPtKink) delete fSimPtKink;
if(fSimEtaKink) delete fSimEtaKink;
if(fSimEtaPtKink) delete fSimEtaPtKink;
- if(fhdr) delete fhdr;
- if(fhdz) delete fhdz;
if(fvtxz) delete fvtxz;
if(fInvmassPt) delete fInvmassPt;
if(fInvmassPtTrue) delete fInvmassPtTrue;
fListOfHistos->Add(fSimPtKink);
fListOfHistos->Add(fSimEtaKink);
fListOfHistos->Add(fSimEtaPtKink);
- fListOfHistos->Add(fhdr);
- fListOfHistos->Add(fhdz);
fListOfHistos->Add(fvtxz);
fListOfHistos->Add(fInvmassPt);
fListOfHistos->Add(fInvmassPtTrue);
fSimPtKink=new TH1D("fSimPtKink"," ", nptbins, nlowpt, nupperpt);
fSimEtaKink=new TH1D("fSimEtaKink"," ", netabins, nloweta, nupeta);
fSimEtaPtKink=new TH2D("fSimEtaPtKink"," ", nptbins, nlowpt, nupperpt, netabins, nloweta, nupeta);
- fhdr=new TH1D("fhdr"," ", 100,0.0,5.0);
- fhdz=new TH1D("fhdz"," ", 100,0.0,5.0);
f1=new TF1("f1","((atan([0]*[1]*(1.0/(sqrt((x^2)*(1.0-([1]^2))-([0]^2)*([1]^2))))))*180.)/[2]",1.1,10.0);
f1->SetParameter(0,0.493677);
resonancePDGcode=fresonancePDGcode;
antiresonancePDGcode=fresonancePDGcode;
}
-
if (!esd) {
Printf("ERROR: esd not available");
return;
}
-
if (!mcEvent) {
- Printf("ERROR: mcEvent not available");
return;
}
-
AliStack* stack=mcEvent->Stack();
if(fAnalysisType == "MC") {
if(mcDaughter1->Charge()==0) continue;
if(mcDaughter2->Charge()==0) continue; //accept resonance decays in two charged daughters
-
Int_t nDecayKaonDaughter=-99;
for(Int_t ia=0; ia<daughterParticle1->GetNDaughters(); ia++) {
if(((daughterParticle1->GetFirstDaughter()+ia)>0)&&((daughterParticle1->GetFirstDaughter()+ia)<stack->GetNtrack())) {
}
if(numberOfCharged>=2) continue; // leave out kaon decays to more than one charged daughter
-
- if ((particle->Pt()>fMinPtTrackCut)&&(TMath::Abs(particle->Eta())<fupeta)) {
-
+ if ((particle->Pt()>fMinPtTrackCut)&&(TMath::Abs(particle->Eta())<fmaxAbsEtaCut)) {
+
fSimEta->Fill(particle->Eta());
fSimEtaPt->Fill(particle->Pt(), particle->Eta());
fSimPt->Fill(particle->Pt());
fMCInvmassPtTrue->Fill(particle->GetMass(), particle->Pt());
- if((daughterParticle1->Pt()>fMinPtTrackCut)&&(TMath::Abs(daughterParticle1->Eta())<fupeta)&&(daughterParticle2->Pt()>fMinPtTrackCut)&&(TMath::Abs(daughterParticle2->Eta())<fupeta)) {
+ if((daughterParticle1->Pt()>fMinPtTrackCut)&&(TMath::Abs(daughterParticle1->Eta())<fmaxAbsEtaCut)&&(daughterParticle2->Pt()>fMinPtTrackCut)&&(TMath::Abs(daughterParticle2->Eta())<fmaxAbsEtaCut)) {
if((mcProcessDaughters1Daughter==4)&&(daughters1Daughter->R()>fminKinkRadius)&&(daughters1Daughter->R()<fmaxKinkRadius)&&( (nProcessDaughter<0)||((daughters2Daughter->R()>fminKinkRadius)&&(nProcessDaughter>0)))) { //below are the findable
fSimPtKink->Fill(particle->Pt());
fSimEtaKink->Fill(particle->Eta());
if((posKaonKinkFlag==1)&&(negKaonKinkFlag==1)) {
p4comb=anp4pos;
p4comb+=p4neg;
- if((p4comb.Vect().Pt()>fMinPtTrackCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fupeta)&&(TMath::Abs(p4neg.Vect().Eta())<fupeta)&&(p4comb.Vect().Eta()<fupeta)) {
+ if((p4comb.Vect().Pt()>fMinPtTrackCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(p4neg.Vect().Eta())<fmaxAbsEtaCut)&&(p4comb.Vect().Eta()<fmaxAbsEtaCut)) {
if(openingAngle>0.6) fPhiBothKinks->Fill(p4comb.M());
}
}
if(p4comb.Vect().Pt()<=fMinPtTrackCut) continue;
- if((TMath::Abs(p4pos.Vect().Eta())<fupeta)&&(TMath::Abs(p4neg.Vect().Eta())<fupeta)&&(p4comb.Vect().Eta()<fupeta)) {
+ if((TMath::Abs(p4pos.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(p4neg.Vect().Eta())<fmaxAbsEtaCut)&&(p4comb.Vect().Eta()<fmaxAbsEtaCut)) {
fInvariantMass->Fill(p4comb.M());
fInvmassPt->Fill(p4comb.M(), p4comb.Vect().Pt());
if ((mumpdgpos==(antiresonancePDGcode))&&(mumpdgneg==(antiresonancePDGcode))&&(mumlabelpos==mumlabelneg)
if(anp4comb.Vect().Pt()<=fMinPtTrackCut) continue;
- if((TMath::Abs(anp4neg.Vect().Eta())<fupeta)&&(TMath::Abs(anp4pos.Vect().Eta())<fupeta)&&(anp4comb.Vect().Eta()<fupeta)) {
+ if((TMath::Abs(anp4neg.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fmaxAbsEtaCut)&&(anp4comb.Vect().Eta()<fmaxAbsEtaCut)) {
fInvariantMass->Fill(anp4comb.M());
fInvmassPt->Fill(anp4comb.M(), anp4comb.Vect().Pt());
if ((mumpdgpos==resonancePDGcode)&&(mumpdgneg==resonancePDGcode)&&(mumlabelpos==mumlabelneg)
if((posKaonKinkFlag==1)&&(negKaonKinkFlag==1)) {
p4comb=anp4pos;
p4comb+=p4neg;
- if((p4comb.Vect().Pt()>fMinPtTrackCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fupeta)&&(TMath::Abs(p4neg.Vect().Eta())<fupeta)&&(p4comb.Vect().Eta()<fupeta)) {
+ if((p4comb.Vect().Pt()>fMinPtTrackCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(p4neg.Vect().Eta())<fmaxAbsEtaCut)&&(p4comb.Vect().Eta()<fmaxAbsEtaCut)) {
if(openingAngle>0.6) fPhiBothKinks->Fill(p4comb.M());
}
}
if(p4comb.Vect().Pt()<=fMinPtTrackCut) continue;
- if((TMath::Abs(p4pos.Vect().Eta())<fupeta)&&(TMath::Abs(p4neg.Vect().Eta())<fupeta)&&(p4comb.Vect().Eta()<fupeta)) {
+ if((TMath::Abs(p4pos.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(p4neg.Vect().Eta())<fmaxAbsEtaCut)&&(p4comb.Vect().Eta()<fmaxAbsEtaCut)) {
fInvariantMass->Fill(p4comb.M());
fInvmassPt->Fill(p4comb.M(), p4comb.Vect().Pt());
+ fRecPt->Fill(p4comb.Vect().Pt());
+ fRecEta->Fill(p4comb.Vect().Eta());
+ fRecEtaPt->Fill(p4comb.Vect().Perp(),p4comb.Vect().Eta());
}
}
if(anp4comb.Vect().Pt()<=fMinPtTrackCut) continue;
- if((TMath::Abs(anp4neg.Vect().Eta())<fupeta)&&(TMath::Abs(anp4pos.Vect().Eta())<fupeta)&&(anp4comb.Vect().Eta()<fupeta)) {
+ if((TMath::Abs(anp4neg.Vect().Eta())<fmaxAbsEtaCut)&&(TMath::Abs(anp4pos.Vect().Eta())<fmaxAbsEtaCut)&&(anp4comb.Vect().Eta()<fmaxAbsEtaCut)) {
fInvariantMass->Fill(anp4comb.M());
fInvmassPt->Fill(anp4comb.M(), anp4comb.Vect().Pt());
+ fRecPt->Fill(anp4comb.Vect().Pt());
+ fRecEta->Fill(anp4comb.Vect().Eta());
+ fRecEtaPt->Fill(anp4comb.Vect().Pt(), anp4comb.Vect().Eta());
}
}
}
if(nClustersTPC < fMinTPCclusters) {
- if (fDebug > 1) Printf("IsAccepted: Track rejected because it has a value of nclusters (TPC) of %ld (min. requested: %ld)", nClustersTPC, fMinTPCclusters);
+ if (fDebug > 1) Printf("IsAccepted: Track rejected because it has a value of nclusters (TPC) of %d (min. requested: %d)", nClustersTPC, fMinTPCclusters);
return kFALSE;
}
Float_t p3Daughter=TMath::Sqrt(((p1XM-p2XM)*(p1XM-p2XM))+((p1YM-p2YM)*(p1YM-p2YM))+((p1ZM-p2ZM)*(p1ZM-p2ZM)));
Double_t invariantMassKmu= TMath::Sqrt((energyDaughterMu+p3Daughter)*(energyDaughterMu+p3Daughter)-motherMfromKink.Mag()*motherMfromKink.Mag());
- if((kinkAngle>maxDecAngpimu)&&(qt>fminQt)&&(qt<fmaxQt)&&((kink->GetR()>fminKinkRadius)&&(kink->GetR()<fmaxKinkRadius))&&(TMath::Abs(trackMom.Eta())<fupeta)&&(invariantMassKmu<0.6)) {
+ if((kinkAngle>maxDecAngpimu)&&(qt>fminQt)&&(qt<fmaxQt)&&((kink->GetR()>fminKinkRadius)&&(kink->GetR()<fmaxKinkRadius))&&(TMath::Abs(trackMom.Eta())<fmaxAbsEtaCut)&&(invariantMassKmu<0.6)) {
if(trackMom.Mag()<=1.1) {
return kTRUE;
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