ClassImp(AliMCAnalysisUtils)
//________________________________________________
-AliMCAnalysisUtils::AliMCAnalysisUtils() :
-TObject(), fCurrentEvent(-1), fDebug(-1),
-fJetsList(new TList), fMCGenerator("PYTHIA")
+ AliMCAnalysisUtils::AliMCAnalysisUtils() :
+ TObject(), fCurrentEvent(-1), fDebug(-1),
+ fJetsList(new TList), fMCGenerator("PYTHIA")
{
//Ctor
}
}
}
-
-//_________________________________________________________________________
-Int_t AliMCAnalysisUtils::CheckOrigin(const Int_t * label, const Int_t nlabels, AliCaloTrackReader* reader, const Int_t input = 0) {
- //Play with the montecarlo particles if available
- Int_t tag = 0;
-
- if(nlabels<=0) {
- printf("AliMCAnalysisUtils::CheckOrigin(nlabel<=0) - No MC labels available, please check!!!\n");
- return kMCBadLabel;
- }
-
- //Select where the information is, ESD-galice stack or AOD mcparticles branch
- if(reader->ReadStack()){
- tag = CheckOriginInStack(label, nlabels, reader->GetStack());
- }
- else if(reader->ReadAODMCParticles()){
- tag = CheckOriginInAOD(label, nlabels, reader->GetAODMCParticles(input));
- }
-
- return tag ;
-}
-
//_________________________________________________________________________
Int_t AliMCAnalysisUtils::CheckCommonAncestor(const Int_t index1, const Int_t index2, AliCaloTrackReader* reader,
- Int_t & ancPDG, Int_t & ancStatus, TLorentzVector & momentum, TVector3 & prodVertex) {
+ Int_t & ancPDG, Int_t & ancStatus, TLorentzVector & momentum, TVector3 & prodVertex)
+{
//Check the first common ancestor of 2 clusters, given the most likely labels of the primaries generating such clusters.
Int_t label1[100];
Int_t label2[100];
label2[0]= index2;
Int_t counter1 = 0;
Int_t counter2 = 0;
-
+
if(label1[0]==label2[0]) {
//printf("AliMCAnalysisUtils::CheckCommonAncestor() - Already the same label: %d\n",label1[0]);
counter1=1;
counter1++;
AliAODMCParticle * mom = (AliAODMCParticle *) mcparticles->At(label);
if(mom){
- label = mom->GetMother() ;
- label1[counter1]=label;
+ label = mom->GetMother() ;
+ label1[counter1]=label;
}
//printf("\t counter %d, label %d\n", counter1,label);
}
}
//_________________________________________________________________________
-Int_t AliMCAnalysisUtils::CheckOrigin(const Int_t label, AliCaloTrackReader* reader, const Int_t input = 0) {
- //Play with the montecarlo particles if available
- Int_t tag = 0;
+Int_t AliMCAnalysisUtils::CheckOrigin(const Int_t * label, const Int_t nlabels, AliCaloTrackReader* reader, const Int_t input = 0)
+{
+ //Play with the montecarlo particles if available
+ Int_t tag = 0;
+
+ if(nlabels<=0) {
+ printf("AliMCAnalysisUtils::CheckOrigin(nlabel<=0) - No MC labels available, please check!!!\n");
+ return kMCBadLabel;
+ }
+
+ //Select where the information is, ESD-galice stack or AOD mcparticles branch
+ if(reader->ReadStack()){
+ tag = CheckOriginInStack(label, nlabels, reader->GetStack());
+ }
+ else if(reader->ReadAODMCParticles()){
+ tag = CheckOriginInAOD(label, nlabels, reader->GetAODMCParticles(input));
+ }
+
+ return tag ;
+}
+
+//_________________________________________________________________________
+Int_t AliMCAnalysisUtils::CheckOrigin(const Int_t label, AliCaloTrackReader* reader, const Int_t input = 0)
+{
+ //Play with the montecarlo particles if available
+ Int_t tag = 0;
if(label<0) {
printf("AliMCAnalysisUtils::CheckOrigin(label<0) - No MC labels available, please check!!!\n");
return kMCBadLabel;
}
- Int_t labels[]={label};
-
- //Select where the information is, ESD-galice stack or AOD mcparticles branch
- if(reader->ReadStack()){
- tag = CheckOriginInStack(labels, 1,reader->GetStack());
- }
- else if(reader->ReadAODMCParticles()){
- tag = CheckOriginInAOD(labels, 1,reader->GetAODMCParticles(input));
- }
-
- return tag ;
+ Int_t labels[]={label};
+
+ //Select where the information is, ESD-galice stack or AOD mcparticles branch
+ if(reader->ReadStack()){
+ tag = CheckOriginInStack(labels, 1,reader->GetStack());
+ }
+ else if(reader->ReadAODMCParticles()){
+ tag = CheckOriginInAOD(labels, 1,reader->GetAODMCParticles(input));
+ }
+
+ return tag ;
}
//_________________________________________________________________________
-Int_t AliMCAnalysisUtils::CheckOriginInStack(const Int_t *labels, const Int_t nlabels, AliStack* stack) {
+Int_t AliMCAnalysisUtils::CheckOriginInStack(const Int_t *labels, const Int_t nlabels, AliStack* stack)
+{
// Play with the MC stack if available. Tag particles depending on their origin.
// Do same things as in CheckOriginInAOD but different input.
Int_t tag = 0;
Int_t label=labels[0];//Most significant particle contributing to the cluster
-
+
if(label >= 0 && label < stack->GetNtrack()){
//MC particle of interest is the "mom" of the entity
TParticle * mom = stack->Particle(label);
else if(fDebug > 0 ) printf("AliMCAnalysisUtils::CheckOriginInStack() - Parent with label %d\n",iParent);
if(fDebug > 2 ) {
- printf("AliMCAnalysisUtils::CheckOriginInStack() - Cluster most contributing mother and its parent: \n");
- printf("\t Mother label %d, pdg %d, status %d\n",iMom, mPdg, mStatus);
- printf("\t Parent label %d, pdg %d, status %d\n",iParent, pPdg, pStatus);
+ printf("AliMCAnalysisUtils::CheckOriginInStack() - Cluster most contributing mother and its parent: \n");
+ printf("\t Mother label %d, pdg %d, status %d\n",iMom, mPdg, mStatus);
+ printf("\t Parent label %d, pdg %d, status %d\n",iParent, pPdg, pStatus);
}
//Check if "mother" of entity is converted, if not, get the first non converted mother
else if(mPdgSign == -2212) SetTagBit(tag,kMCAntiProton);
else if(mPdgSign == 2112) SetTagBit(tag,kMCNeutron);
else if(mPdgSign == -2112) SetTagBit(tag,kMCAntiNeutron);
-
+
//check for pi0 and eta (shouldn't happen unless their decays were turned off)
else if(mPdg == 111) {
SetTagBit(tag,kMCPi0Decay);
}//Decay
else {
if(fDebug > 1 && parent) printf("AliMCAnalysisUtils::CheckOrigingInStack() - what is it in PYTHIA? Wrong generator setting? Mother mPdg %d, status %d \n Parent iParent %d, pPdg %d %s, status %d\n",
- mPdg, mStatus,iParent, pPdg, parent->GetName(),pStatus);
+ mPdg, mStatus,iParent, pPdg, parent->GetName(),pStatus);
if(pPdg == 111) {
SetTagBit(tag,kMCPi0Decay);
if(fDebug > 2 ) printf("AliMCAnalysisUtils::CheckOriginInStack() - PYTHIA pi0 decay photon, parent pi0 with status 11 \n");
//_________________________________________________________________________
-Int_t AliMCAnalysisUtils::CheckOriginInAOD(const Int_t *labels, const Int_t nlabels, TClonesArray *mcparticles) {
+Int_t AliMCAnalysisUtils::CheckOriginInAOD(const Int_t *labels, const Int_t nlabels, TClonesArray *mcparticles)
+{
// Play with the MCParticles in AOD if available. Tag particles depending on their origin.
// Do same things as in CheckOriginInStack but different input.
if(!mcparticles) {
else if(fDebug > 0 ) printf("AliMCAnalysisUtils::CheckOriginInAOD() - Parent with label %d\n",iParent);
if(fDebug > 2 ) {
- printf("AliMCAnalysisUtils::CheckOriginInAOD() - Cluster most contributing mother and its parent: \n");
- printf("\t Mother label %d, pdg %d, Primary? %d, Physical Primary? %d\n",iMom, mPdg, mom->IsPrimary(), mom->IsPhysicalPrimary());
- if(parent)
+ printf("AliMCAnalysisUtils::CheckOriginInAOD() - Cluster most contributing mother and its parent: \n");
+ printf("\t Mother label %d, pdg %d, Primary? %d, Physical Primary? %d\n",iMom, mPdg, mom->IsPrimary(), mom->IsPhysicalPrimary());
+ if(parent)
printf("\t Parent label %d, pdg %d, Primary? %d, Physical Primary? %d\n",iParent, pPdg, parent->IsPrimary(), parent->IsPhysicalPrimary());
}
//}
}
+ //printf("Final mother mPDG %d\n",mPdg);
+
// conversion into electrons/photons checked
//first check for typical charged particles
//Photons
else if(mPdg == 22){
SetTagBit(tag,kMCPhoton);
- if(mom->IsPhysicalPrimary()){ //undecayed particle
- if(iParent < 8 && iParent > 5) {//outgoing partons
+ if(mom->IsPhysicalPrimary() && (fMCGenerator=="PYTHIA" || fMCGenerator=="HERWIG")) //undecayed particle
+ {
+ if(iParent < 8 && iParent > 5 ) {//outgoing partons
if(pPdg == 22) SetTagBit(tag,kMCPrompt);
else SetTagBit(tag,kMCFragmentation);
}//Outgoing partons
- else if(iParent <= 5) {
+ else if(iParent <= 5 && (fMCGenerator=="PYTHIA" || fMCGenerator=="HERWIG")) {
SetTagBit(tag, kMCISR); //Initial state radiation
}
else if(parent && parent->IsPrimary() && !parent->IsPhysicalPrimary()){//Decay
else SetTagBit(tag,kMCOtherDecay);
}//Decay
else {
- if(parent)printf("AliMCAnalysisUtils::ChecOrigingInAOD() - what is it? Mother mPdg %d, is primary? %d, is physical %d \n Parent iParent %d, pPdg %d, is primary? %d, is physical? %d\n",
- mPdg, mom->IsPrimary(), mom->IsPhysicalPrimary(),iParent, pPdg,parent->IsPrimary(), parent->IsPhysicalPrimary());
+ if(parent)printf("AliMCAnalysisUtils::CheckOriginInAOD() - what is it? Mother mPdg %d, is primary? %d, is physical %d \n Parent iParent %d, pPdg %d, is primary? %d, is physical? %d\n",
+ mPdg, mom->IsPrimary(), mom->IsPhysicalPrimary(),iParent, pPdg,parent->IsPrimary(), parent->IsPhysicalPrimary());
SetTagBit(tag,kMCOtherDecay);//Check
}
- }// Pythia generated
- else if(!mom->IsPrimary()){ //Decays
+ }//Physical primary
+ else if(!mom->IsPrimary()){ //Decays
if(pPdg == 111){
SetTagBit(tag,kMCPi0Decay);
- if(fDebug > 2 ) printf("AliMCAnalysisUtils::CheckOriginInAOD() - Transport MC pi0 decay photon \n");
- CheckOverlapped2GammaDecay(labels,nlabels, iParent, mcparticles, tag); //set to kMCPi0 if 2 gammas in same cluster
+ if(fDebug > 2 )
+ printf("AliMCAnalysisUtils::CheckOriginInAOD() - Transport MC pi0 decay photon \n");
+ CheckOverlapped2GammaDecay(labels,nlabels, iParent, mcparticles, tag); //set to kMCPi0 if 2 gammas in same cluster
}
else if (pPdg == 221) {
SetTagBit(tag,kMCEtaDecay);
//_________________________________________________________________________
void AliMCAnalysisUtils::CheckOverlapped2GammaDecay(const Int_t *labels, const Int_t nlabels, const Int_t mesonIndex,
- AliStack *stack, Int_t &tag) {
- //Check if cluster is formed from the contribution of 2 decay photons from pi0 or eta. Input in stack
-
- if(labels[0] < 0 || labels[0] > stack->GetNtrack() || nlabels <= 1) {
- if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Exit : label[0] %d, n primaries %d, nlabels %d \n",
+ AliStack *stack, Int_t &tag)
+{
+ //Check if cluster is formed from the contribution of 2 decay photons from pi0 or eta. Input in stack
+
+ if(labels[0] < 0 || labels[0] > stack->GetNtrack() || nlabels <= 1) {
+ if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Exit : label[0] %d, n primaries %d, nlabels %d \n",
labels[0],stack->GetNtrack(), nlabels);
- return;
- }
-
- TParticle * meson = stack->Particle(mesonIndex);
- Int_t mesonPdg = meson->GetPdgCode();
- if(mesonPdg!=111 && mesonPdg!=221){
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Wrong pi0/eta PDG : %d \n",mesonPdg);
- return;
- }
-
- if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - %s, label %d\n",meson->GetName(), mesonIndex);
+ return;
+ }
+
+ TParticle * meson = stack->Particle(mesonIndex);
+ Int_t mesonPdg = meson->GetPdgCode();
+ if(mesonPdg!=111 && mesonPdg!=221){
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Wrong pi0/eta PDG : %d \n",mesonPdg);
+ return;
+ }
+
+ if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - %s, label %d\n",meson->GetName(), mesonIndex);
+
+ //Check if meson decayed into 2 daughters or if both were kept.
+ if(meson->GetNDaughters() != 2){
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. Number of daughters is %d, not 2 \n",meson->GetNDaughters());
+ return;
+ }
+
+ //Get the daughters
+ Int_t iPhoton0 = meson->GetDaughter(0);
+ Int_t iPhoton1 = meson->GetDaughter(1);
+ TParticle *photon0 = stack->Particle(iPhoton0);
+ TParticle *photon1 = stack->Particle(iPhoton1);
+
+ //Check if both daughters are photons
+ if(photon0->GetPdgCode() != 22 || photon1->GetPdgCode()!=22){
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. PDG: daughter 1 = %d, of daughter 2 = %d \n",photon0->GetPdgCode(),photon1->GetPdgCode());
+ return;
+ }
+
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Daughter labels : photon0 = %d, photon1 = %d \n",iPhoton0,iPhoton1);
+
+ //Check if both photons contribute to the cluster
+ Bool_t okPhoton0 = kFALSE;
+ Bool_t okPhoton1 = kFALSE;
+
+ if(fDebug > 3) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Labels loop:\n");
+
+ for(Int_t i = 0; i < nlabels; i++){
+ if(fDebug > 3) printf("\t at begin:label %d/%d: %d, ok? photon1 %d, photon2 %d\n", i+1, nlabels, labels[i], okPhoton0, okPhoton1);
+
+ //If we already found both, break the loop
+ if(okPhoton0 && okPhoton1) break;
+
+ Int_t index = labels[i];
+ if (iPhoton0 == index) {
+ okPhoton0 = kTRUE;
+ continue;
+ }
+ else if (iPhoton1 == index) {
+ okPhoton1 = kTRUE;
+ continue;
+ }
+
+ //Trace back the mother in case it was a conversion
+
+ if(index >= stack->GetNtrack()){
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(ESD) Particle index %d larger than size of list %d !!\n",index,stack->GetNtrack());
+ continue;
+ }
+
+ TParticle * daught = stack->Particle(index);
+ Int_t tmpindex = daught->GetFirstMother();
+ if(fDebug > 3) printf("\t Conversion? : mother %d\n",tmpindex);
+ while(tmpindex>=0){
+ //MC particle of interest is the mother
+ if(fDebug > 3) printf("\t \t parent index %d\n",tmpindex);
+ daught = stack->Particle(tmpindex);
+ if (iPhoton0 == tmpindex) {
+ okPhoton0 = kTRUE;
+ break;
+ }
+ else if (iPhoton1 == tmpindex) {
+ okPhoton1 = kTRUE;
+ break;
+ }
+ tmpindex = daught->GetFirstMother();
+ }//While to check if pi0/eta daughter was one of these contributors to the cluster
+
+ if(i == 0 && (!okPhoton0 && !okPhoton1) && fDebug>=0)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Something happens, first label should be from a photon decay!\n");
+
+ }//loop on list of labels
+
+ //If both photons contribute tag as the corresponding meson.
+ if(okPhoton0 && okPhoton1){
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - %s OVERLAPPED DECAY \n", meson->GetName());
+
+ if(mesonPdg == 111) SetTagBit(tag,kMCPi0);
+ else SetTagBit(tag,kMCEta);
+ }
- //Check if meson decayed into 2 daughters or if both were kept.
- if(meson->GetNDaughters() != 2){
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. Number of daughters is %d, not 2 \n",meson->GetNDaughters());
- return;
- }
-
- //Get the daughters
- Int_t iPhoton0 = meson->GetDaughter(0);
- Int_t iPhoton1 = meson->GetDaughter(1);
- TParticle *photon0 = stack->Particle(iPhoton0);
- TParticle *photon1 = stack->Particle(iPhoton1);
-
- //Check if both daughters are photons
- if(photon0->GetPdgCode() != 22 || photon1->GetPdgCode()!=22){
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. PDG: daughter 1 = %d, of daughter 2 = %d \n",photon0->GetPdgCode(),photon1->GetPdgCode());
- return;
- }
-
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Daughter labels : photon0 = %d, photon1 = %d \n",iPhoton0,iPhoton1);
-
- //Check if both photons contribute to the cluster
- Bool_t okPhoton0 = kFALSE;
- Bool_t okPhoton1 = kFALSE;
-
- if(fDebug > 3) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Labels loop:\n");
-
- for(Int_t i = 0; i < nlabels; i++){
- if(fDebug > 3) printf("\t at begin:label %d/%d: %d, ok? photon1 %d, photon2 %d\n", i+1, nlabels, labels[i], okPhoton0, okPhoton1);
-
- //If we already found both, break the loop
- if(okPhoton0 && okPhoton1) break;
-
- Int_t index = labels[i];
- if (iPhoton0 == index) {
- okPhoton0 = kTRUE;
- continue;
- }
- else if (iPhoton1 == index) {
- okPhoton1 = kTRUE;
- continue;
- }
-
- //Trace back the mother in case it was a conversion
- TParticle * daught = stack->Particle(index);
- Int_t tmpindex = daught->GetFirstMother();
- if(fDebug > 3) printf("\t Conversion? : mother %d\n",tmpindex);
- while(tmpindex>=0){
- //MC particle of interest is the mother
- if(fDebug > 3) printf("\t \t parent index %d\n",tmpindex);
- daught = stack->Particle(tmpindex);
- if (iPhoton0 == tmpindex) {
- okPhoton0 = kTRUE;
- break;
- }
- else if (iPhoton1 == tmpindex) {
- okPhoton1 = kTRUE;
- break;
- }
- tmpindex = daught->GetFirstMother();
- }//While to check if pi0/eta daughter was one of these contributors to the cluster
-
- if(i == 0 && (!okPhoton0 && !okPhoton1) && fDebug>=0)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Something happens, first label should be from a photon decay!\n");
-
- }//loop on list of labels
-
- //If both photons contribute tag as the corresponding meson.
- if(okPhoton0 && okPhoton1){
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - %s OVERLAPPED DECAY \n", meson->GetName());
-
- if(mesonPdg == 111) SetTagBit(tag,kMCPi0);
- else SetTagBit(tag,kMCEta);
- }
-
}
//_________________________________________________________________________
void AliMCAnalysisUtils::CheckOverlapped2GammaDecay(const Int_t *labels, const Int_t nlabels, const Int_t mesonIndex,
- TClonesArray *mcparticles, Int_t &tag) {
- //Check if cluster is formed from the contribution of 2 decay photons from pi0 or eta. Input in AODMCParticles
+ TClonesArray *mcparticles, Int_t &tag)
+{
+ //Check if cluster is formed from the contribution of 2 decay photons from pi0 or eta. Input in AODMCParticles
- if(labels[0] < 0 || labels[0] > mcparticles->GetEntriesFast() || nlabels <= 1) {
- if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Exit : label[0] %d, n primaries %d, nlabels %d \n",
- labels[0],mcparticles->GetEntriesFast(), nlabels);
- return;
- }
-
-
+ if(labels[0] < 0 || labels[0] > mcparticles->GetEntriesFast() || nlabels <= 1) {
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Exit : label[0] %d, n primaries %d, nlabels %d \n",
+ labels[0],mcparticles->GetEntriesFast(), nlabels);
+ return;
+ }
+
AliAODMCParticle * meson = (AliAODMCParticle *) mcparticles->At(mesonIndex);
- Int_t mesonPdg = meson->GetPdgCode();
- if(mesonPdg != 111 && mesonPdg != 221) {
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Wrong pi0/eta PDG : %d \n",mesonPdg);
- return;
- }
-
- if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - pdg %d, label %d, ndaughters %d\n", mesonPdg, mesonIndex, meson->GetNDaughters());
-
-
- //Get the daughters
- if(meson->GetNDaughters() != 2){
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. Number of daughters is %d, not 2 \n",meson->GetNDaughters());
- return;
- }
- Int_t iPhoton0 = meson->GetDaughter(0);
- Int_t iPhoton1 = meson->GetDaughter(1);
- //if((iPhoton0 == -1) || (iPhoton1 == -1)){
- // if(fDebug > 2)
- // printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Exit : Not overalapped. At least a daughter do not exists : d1 %d, d2 %d \n", iPhoton0, iPhoton1);
- // return;
- //}
- AliAODMCParticle *photon0 = (AliAODMCParticle *) mcparticles->At(iPhoton0);
- AliAODMCParticle *photon1 = (AliAODMCParticle *) mcparticles->At(iPhoton1);
-
- //Check if both daughters are photons
- if(photon0->GetPdgCode() != 22 && photon1->GetPdgCode()!=22){
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Not overalapped. PDG: daughter 1 = %d, of daughter 2 = %d \n",photon0->GetPdgCode(),photon1->GetPdgCode());
- return;
- }
-
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Daughter labels : photon0 = %d, photon1 = %d \n",iPhoton0,iPhoton1);
-
- //Check if both photons contribute to the cluster
- Bool_t okPhoton0 = kFALSE;
- Bool_t okPhoton1 = kFALSE;
-
- if(fDebug > 3) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Labels loop:\n");
-
- for(Int_t i = 0; i < nlabels; i++){
- if(fDebug > 3) printf("\t label %d/%d: %d, ok? %d, %d\n", i, nlabels, labels[i], okPhoton0, okPhoton1);
+ Int_t mesonPdg = meson->GetPdgCode();
+ if(mesonPdg != 111 && mesonPdg != 221) {
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Wrong pi0/eta PDG : %d \n",mesonPdg);
+ return;
+ }
+
+ if(fDebug > 2) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - pdg %d, label %d, ndaughters %d\n", mesonPdg, mesonIndex, meson->GetNDaughters());
+
+
+ //Get the daughters
+ if(meson->GetNDaughters() != 2){
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(stack) - Not overalapped. Number of daughters is %d, not 2 \n",meson->GetNDaughters());
+ return;
+ }
+ Int_t iPhoton0 = meson->GetDaughter(0);
+ Int_t iPhoton1 = meson->GetDaughter(1);
+ //if((iPhoton0 == -1) || (iPhoton1 == -1)){
+ // if(fDebug > 2)
+ // printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Exit : Not overlapped. At least a daughter do not exists : d1 %d, d2 %d \n", iPhoton0, iPhoton1);
+ // return;
+ //}
+ AliAODMCParticle *photon0 = (AliAODMCParticle *) mcparticles->At(iPhoton0);
+ AliAODMCParticle *photon1 = (AliAODMCParticle *) mcparticles->At(iPhoton1);
+
+ //Check if both daughters are photons
+ if(photon0->GetPdgCode() != 22 && photon1->GetPdgCode()!=22){
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Not overlapped. PDG: daughter 1 = %d, of daughter 2 = %d \n",photon0->GetPdgCode(),photon1->GetPdgCode());
+ return;
+ }
+
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Daughter labels : photon0 = %d, photon1 = %d \n",iPhoton0,iPhoton1);
+
+ //Check if both photons contribute to the cluster
+ Bool_t okPhoton0 = kFALSE;
+ Bool_t okPhoton1 = kFALSE;
+
+ if(fDebug > 3)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Labels loop:\n");
+
+ for(Int_t i = 0; i < nlabels; i++){
+ if(fDebug > 3)
+ printf("\t label %d/%d: %d, ok? %d, %d\n", i, nlabels, labels[i], okPhoton0, okPhoton1);
- //If we already found both, break the loop
- if(okPhoton0 && okPhoton1) break;
-
- Int_t index = labels[i];
- if (iPhoton0 == index) {
- okPhoton0 = kTRUE;
- continue;
- }
- else if (iPhoton1 == index) {
- okPhoton1 = kTRUE;
- continue;
- }
-
- //Trace back the mother in case it was a conversion
- AliAODMCParticle * daught = (AliAODMCParticle*) mcparticles->At(index);
- Int_t tmpindex = daught->GetMother();
- if(fDebug > 3) printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Conversion? : mother %d\n",tmpindex);
+ //If we already found both, break the loop
+ if(okPhoton0 && okPhoton1) break;
- while(tmpindex>=0){
-
- //MC particle of interest is the mother
- if(fDebug > 3) printf("\t parent index %d\n",tmpindex);
- daught = (AliAODMCParticle*) mcparticles->At(tmpindex);
- //printf("tmpindex %d\n",tmpindex);
- if (iPhoton0 == tmpindex) {
- okPhoton0 = kTRUE;
- break;
- }
- else if (iPhoton1 == tmpindex) {
- okPhoton1 = kTRUE;
- break;
- }
- tmpindex = daught->GetMother();
- }//While to check if pi0/eta daughter was one of these contributors to the cluster
-
- if(i == 0 && (!okPhoton0 && !okPhoton1) && fDebug>=0 )
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Something happens, first label should be from a photon decay!\n");
-
- }//loop on list of labels
-
- //If both photons contribute tag as the corresponding meson.
- if(okPhoton0 && okPhoton1){
- if(fDebug > 2)
- printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - %s OVERLAPPED DECAY \n",(TDatabasePDG::Instance()->GetParticle(mesonPdg))->GetName());
-
- if(mesonPdg == 111) SetTagBit(tag,kMCPi0);
- else SetTagBit(tag,kMCEta);
- }
-
+ Int_t index = labels[i];
+ if (iPhoton0 == index) {
+ okPhoton0 = kTRUE;
+ continue;
+ }
+ else if (iPhoton1 == index) {
+ okPhoton1 = kTRUE;
+ continue;
+ }
+
+ //Trace back the mother in case it was a conversion
+
+ if(index >= mcparticles->GetEntriesFast()){
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) Particle index %d larger than size of list %d !!\n",index,mcparticles->GetEntriesFast());
+ continue;
+ }
+
+ AliAODMCParticle * daught = (AliAODMCParticle*) mcparticles->At(index);
+ Int_t tmpindex = daught->GetMother();
+ if(fDebug > 3)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Conversion? : mother %d\n",tmpindex);
+
+ while(tmpindex>=0){
+
+ //MC particle of interest is the mother
+ if(fDebug > 3)
+ printf("\t parent index %d\n",tmpindex);
+ daught = (AliAODMCParticle*) mcparticles->At(tmpindex);
+ //printf("tmpindex %d\n",tmpindex);
+ if (iPhoton0 == tmpindex) {
+ okPhoton0 = kTRUE;
+ break;
+ }
+ else if (iPhoton1 == tmpindex) {
+ okPhoton1 = kTRUE;
+ break;
+ }
+ tmpindex = daught->GetMother();
+ }//While to check if pi0/eta daughter was one of these contributors to the cluster
+
+ if(i == 0 && (!okPhoton0 && !okPhoton1) && fDebug>=-1 )
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - Something happens, first label should be from a photon decay!\n");
+
+ }//loop on list of labels
+
+ //If both photons contribute tag as the corresponding meson.
+ if(okPhoton0 && okPhoton1){
+ if(fDebug > 2)
+ printf("AliMCAnalysisUtils::CheckOverlapped2GammaDecay(AOD) - %s OVERLAPPED DECAY \n",(TDatabasePDG::Instance()->GetParticle(mesonPdg))->GetName());
+
+ if(mesonPdg == 111) SetTagBit(tag,kMCPi0);
+ else SetTagBit(tag,kMCEta);
+ }
+
}
//_________________________________________________________________________
-TList * AliMCAnalysisUtils::GetJets(AliCaloTrackReader * const reader){
+TList * AliMCAnalysisUtils::GetJets(AliCaloTrackReader * const reader)
+{
//Return list of jets (TParticles) and index of most likely parton that originated it.
AliStack * stack = reader->GetStack();
Int_t iEvent = reader->GetEventNumber();
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff