#include "AliESDEvent.h"
#include "AliCentrality.h"
#include "TList.h"
+#include "TPDGCode.h"
+#include "TDatabasePDG.h"
+#include "AliAODMCParticle.h"
+
class iostream;
using namespace std;
void AliConversionMesonCuts::InitCutHistograms(TString name){
// Initialize Cut Histograms for QA (only initialized and filled if function is called)
-
+ TH1::AddDirectory(kFALSE);
+
if(fHistograms != NULL){
delete fHistograms;
fHistograms=NULL;
}
if(fHistograms==NULL){
fHistograms=new TList();
+ fHistograms->SetOwner(kTRUE);
if(name=="")fHistograms->SetName(Form("ConvMesonCuts_%s",GetCutNumber().Data()));
else fHistograms->SetName(Form("%s_%s",name.Data(),GetCutNumber().Data()));
}
hMesonBGCuts->GetXaxis()->SetBinLabel(6,"alpha min");
hMesonBGCuts->GetXaxis()->SetBinLabel(7,"out");
fHistograms->Add(hMesonBGCuts);
+
+ TH1::AddDirectory(kTRUE);
}
-
//________________________________________________________________________
-Bool_t AliConversionMesonCuts::MesonIsSelectedMC(TParticle *fMCMother,AliStack *fMCStack){
+Bool_t AliConversionMesonCuts::MesonIsSelectedMC(TParticle *fMCMother,AliStack *fMCStack, Double_t fRapidityShift){
// Returns true for all pions within acceptance cuts for decay into 2 photons
// If bMCDaughtersInAcceptance is selected, it requires in addition that both daughter photons are within acceptance cuts
Double_t rapidity = 10.;
if(fMCMother->Energy() - fMCMother->Pz() == 0 || fMCMother->Energy() + fMCMother->Pz() == 0){
- rapidity=8.;
+ rapidity=8.-fRapidityShift;
} else{
- rapidity = 0.5*(TMath::Log((fMCMother->Energy()+fMCMother->Pz()) / (fMCMother->Energy()-fMCMother->Pz())));
+ rapidity = 0.5*(TMath::Log((fMCMother->Energy()+fMCMother->Pz()) / (fMCMother->Energy()-fMCMother->Pz())))-fRapidityShift;
}
// Rapidity Cut
}
return kFALSE;
}
+//________________________________________________________________________
+Bool_t AliConversionMesonCuts::MesonIsSelectedAODMC(AliAODMCParticle *MCMother,TClonesArray *AODMCArray, Double_t fRapidityShift){
+ // Returns true for all pions within acceptance cuts for decay into 2 photons
+ // If bMCDaughtersInAcceptance is selected, it requires in addition that both daughter photons are within acceptance cuts
+
+ if(!AODMCArray)return kFALSE;
+
+ if(MCMother->GetPdgCode()==111 || MCMother->GetPdgCode()==221){
+ Double_t rMeson = sqrt( (MCMother->Xv()*MCMother->Xv()) + (MCMother->Yv()*MCMother->Yv()) ) ;
+ if(rMeson>fMaxR) return kFALSE; // cuts on distance from collision point
+
+ Double_t rapidity = 10.;
+ if(MCMother->E() - MCMother->Pz() == 0 || MCMother->E() + MCMother->Pz() == 0){
+ rapidity=8.-fRapidityShift;
+ } else{
+ rapidity = 0.5*(TMath::Log((MCMother->E()+MCMother->Pz()) / (MCMother->E()-MCMother->Pz())))-fRapidityShift;
+ }
+
+ // Rapidity Cut
+ if(abs(rapidity)>fRapidityCutMeson)return kFALSE;
+
+ // Select only -> 2y decay channel
+ if(MCMother->GetNDaughters()!=2)return kFALSE;
+ for(Int_t i=0;i<2;i++){
+ AliAODMCParticle *MDaughter=static_cast<AliAODMCParticle*>(AODMCArray->At(MCMother->GetDaughter(i)));
+ // Is Daughter a Photon?
+ if(MDaughter->GetPdgCode()!=22)return kFALSE;
+ // Is Photon in Acceptance?
+ // if(bMCDaughtersInAcceptance){
+ // if(!PhotonIsSelectedMC(MDaughter,fMCStack)){return kFALSE;}
+ // }
+ }
+ return kTRUE;
+ }
+ return kFALSE;
+}
//________________________________________________________________________
-Bool_t AliConversionMesonCuts::MesonIsSelectedMCDalitz(TParticle *fMCMother,AliStack *fMCStack){
+Bool_t AliConversionMesonCuts::MesonIsSelectedMCDalitz(TParticle *fMCMother,AliStack *fMCStack, Int_t &labelelectron, Int_t &labelpositron, Int_t &labelgamma, Double_t fRapidityShift){
+
// Returns true for all pions within acceptance cuts for decay into 2 photons
// If bMCDaughtersInAcceptance is selected, it requires in addition that both daughter photons are within acceptance cuts
- if(!fMCStack)return kFALSE;
+ if( !fMCStack )return kFALSE;
- if(fMCMother->GetPdgCode()==111 || fMCMother->GetPdgCode()==221){
+ if( fMCMother->GetPdgCode() != 111 && fMCMother->GetPdgCode() != 221 ) return kFALSE;
- if(fMCMother->R()>fMaxR) return kFALSE; // cuts on distance from collision point
+ if( fMCMother->R()>fMaxR ) return kFALSE; // cuts on distance from collision point
- Double_t rapidity = 10.;
- if(fMCMother->Energy() - fMCMother->Pz() == 0 || fMCMother->Energy() + fMCMother->Pz() == 0){
- rapidity=8.;
- }
- else{
- rapidity = 0.5*(TMath::Log((fMCMother->Energy()+fMCMother->Pz()) / (fMCMother->Energy()-fMCMother->Pz())));
- }
+ Double_t rapidity = 10.;
+
+ if( fMCMother->Energy() - fMCMother->Pz() == 0 || fMCMother->Energy() + fMCMother->Pz() == 0 ){
+ rapidity=8.-fRapidityShift;
+ }
+ else{
+ rapidity = 0.5*(TMath::Log((fMCMother->Energy()+fMCMother->Pz()) / (fMCMother->Energy()-fMCMother->Pz())))-fRapidityShift;
+ }
// Rapidity Cut
- if(abs(rapidity)>fRapidityCutMeson)return kFALSE;
+ if( abs(rapidity) > fRapidityCutMeson )return kFALSE;
// Select only -> Dalitz decay channel
- if(fMCMother->GetNDaughters()!=3)return kFALSE;
+ if( fMCMother->GetNDaughters() != 3 )return kFALSE;
- Int_t daughterPDGs[3] = {0,0,0};
- Int_t index = 0;
+ TParticle *positron = 0x0;
+ TParticle *electron = 0x0;
+ TParticle *gamma = 0x0;
+
+ for(Int_t index= fMCMother->GetFirstDaughter();index<= fMCMother->GetLastDaughter();index++){
+
+ TParticle* temp = (TParticle*)fMCStack->Particle( index );
+
+ switch( temp->GetPdgCode() ) {
+ case ::kPositron:
+ positron = temp;
+ labelpositron = index;
+ break;
+ case ::kElectron:
+ electron = temp;
+ labelelectron = index;
+ break;
+ case ::kGamma:
+ gamma = temp;
+ labelgamma = index;
+ break;
+ }
+ }
+
+ if( positron && electron && gamma) return kTRUE;
+ return kFALSE;
+
+
+}
+//________________________________________________________________________
+Bool_t AliConversionMesonCuts::MesonIsSelectedMCChiC(TParticle *fMCMother,AliStack *fMCStack,Int_t & labelelectronChiC, Int_t & labelpositronChiC, Int_t & labelgammaChiC, Double_t fRapidityShift){
+ // Returns true for all ChiC within acceptance cuts for decay into JPsi + gamma -> e+ + e- + gamma
+ // If bMCDaughtersInAcceptance is selected, it requires in addition that both daughter photons are within acceptance cuts
+
+ if(!fMCStack)return kFALSE;
+ // if(fMCMother->GetPdgCode()==20443 ){
+ // return kFALSE;
+ // }
+ if(fMCMother->GetPdgCode()==10441 || fMCMother->GetPdgCode()==10443 || fMCMother->GetPdgCode()==445 ){
+ if(fMCMother->R()>fMaxR) return kFALSE; // cuts on distance from collision point
+
+ Double_t rapidity = 10.;
+ if(fMCMother->Energy() - fMCMother->Pz() == 0 || fMCMother->Energy() + fMCMother->Pz() == 0){
+ rapidity=8.-fRapidityShift;
+ }
+ else{
+ rapidity = 0.5*(TMath::Log((fMCMother->Energy()+fMCMother->Pz()) / (fMCMother->Energy()-fMCMother->Pz())))-fRapidityShift;
+ }
+
+ // Rapidity Cut
+ if(abs(rapidity)>fRapidityCutMeson)return kFALSE;
- // iParticle->GetFirstDaughter(); idxPi0 <= iParticle->GetLastDaughter()
+ // Select only -> ChiC radiative (JPsi+gamma) decay channel
+ if(fMCMother->GetNDaughters()!=2)return kFALSE;
- for(Int_t i=fMCMother->GetFirstDaughter(); i<= fMCMother->GetLastDaughter();i++){
- TParticle *MDaughter=fMCStack->Particle(i);
- // Is Daughter a Photon or an electron?
- daughterPDGs[index]=MDaughter->GetPdgCode();
- index++;
- }
- for (Int_t j=0;j<2;j++){
-
- for (Int_t i=0;i<2;i++){
- if (daughterPDGs[i] > daughterPDGs[i+1]){
- Int_t interMed = daughterPDGs[i] ;
- daughterPDGs[i] = daughterPDGs[i+1];
- daughterPDGs[i+1] = interMed;
- }
- }
- }
- if (daughterPDGs[0] == -11 && daughterPDGs[1] == 11 && daughterPDGs[2] == 22) return kTRUE;
+ TParticle *jpsi = 0x0;
+ TParticle *gamma = 0x0;
+ TParticle *positron = 0x0;
+ TParticle *electron = 0x0;
+
+ Int_t labeljpsiChiC = -1;
+
+ for(Int_t index= fMCMother->GetFirstDaughter();index<= fMCMother->GetLastDaughter();index++){
+
+ TParticle* temp = (TParticle*)fMCStack->Particle( index );
+
+ switch( temp->GetPdgCode() ) {
+ case 443:
+ jpsi = temp;
+ labeljpsiChiC = index;
+ break;
+ case 22:
+ gamma = temp;
+ labelgammaChiC = index;
+ break;
+ }
+ }
+
+ if ( !jpsi || ! gamma) return kFALSE;
+ if(jpsi->GetNDaughters()!=2)return kFALSE;
+
+
+ for(Int_t index= jpsi->GetFirstDaughter();index<= jpsi->GetLastDaughter();index++){
+ TParticle* temp = (TParticle*)fMCStack->Particle( index );
+ switch( temp->GetPdgCode() ) {
+ case -11:
+ electron = temp;
+ labelelectronChiC = index;
+ break;
+ case 11:
+ positron = temp;
+ labelpositronChiC = index;
+ break;
+ }
+ }
+ if( !electron || !positron) return kFALSE;
+ if( positron && electron && gamma) return kTRUE;
}
return kFALSE;
}
+
///________________________________________________________________________
-Bool_t AliConversionMesonCuts::MesonIsSelected(AliAODConversionMother *pi0,Bool_t IsSignal)
+Bool_t AliConversionMesonCuts::MesonIsSelected(AliAODConversionMother *pi0,Bool_t IsSignal, Double_t fRapidityShift)
{
// Selection of reconstructed Meson candidates
// Use flag IsSignal in order to fill Fill different
else{
// PseudoRapidity Cut --> But we cut on Rapidity !!!
cutIndex++;
- if(abs(pi0->Rapidity())>fRapidityCutMeson){
+ if(abs(pi0->Rapidity()-fRapidityShift)>fRapidityCutMeson){
if(hist)hist->Fill(cutIndex);
return kFALSE;
}
///Update the cut string (if it has been created yet)
if(fCutString && fCutString->GetString().Length() == kNCuts) {
- // cout << "Updating cut id in spot number " << cutID << " to " << value << endl;
fCutString->SetString(GetCutNumber());
} else {
- // cout << "fCutString not yet initialized, will not be updated" << endl;
return kFALSE;
}
- // cout << fCutString->GetString().Data() << endl;
return kTRUE;
}
case 6: //
fRapidityCutMeson = 0.75;
break;
-
+ case 7: //
+ fRapidityCutMeson = 0.3;
+ break;
+ case 8: //
+ fRapidityCutMeson = 0.35;
+ break;
+ case 9: //
+ fRapidityCutMeson = 0.4;
+ break;
default:
cout<<"Warning: RapidityMesonCut not defined "<<RapidityMesonCut<<endl;
return kFALSE;
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff