[PWGDQ] Add centrality info to MC generated events mini tree

Author: sgaretti

PWGDQ/DataModel/ReducedInfoTables.h

@@ -854,7 +854,7 @@ DECLARE_SOA_TABLE(DileptonsMiniTree, "AOD", "RTDILEPTMTREE", //!
                   dilepton_track_index::Pt2, dilepton_track_index::Eta2, dilepton_track_index::Phi2);
 
 DECLARE_SOA_TABLE(DileptonsMiniTreeGen, "AOD", "RTDILMTREEGEN", //!
-                  reducedpair::McDecision, mccollision::ImpactParameter,
+                  reducedpair::McDecision, mccollision::ImpactParameter, reducedpair::CentFT0C,
                   dilepton_track_index::PtMC1, dilepton_track_index::EtaMC1, dilepton_track_index::PhiMC1,
                   dilepton_track_index::PtMC2, dilepton_track_index::EtaMC2, dilepton_track_index::PhiMC2);
 

PWGDQ/Tasks/dqEfficiency_withAssoc.cxx

@@ -2011,7 +2011,7 @@ struct AnalysisSameEventPairing {
           fHistMan->FillHistClass(Form("MCTruthGen_%s", sig->GetName()), VarManager::fgValues);
           if (useMiniTree.fConfigMiniTree) {
             auto mcEvent = mcEvents.rawIteratorAt(mctrack.reducedMCeventId());
-            dileptonMiniTreeGen(mcDecision, mcEvent.impactParameter(), mctrack.pt(), mctrack.eta(), mctrack.phi(), -999, -999, -999);
+            dileptonMiniTreeGen(mcDecision, mcEvent.impactParameter(), VarManager::fgValues[VarManager::kCentFT0C], mctrack.pt(), mctrack.eta(), mctrack.phi(), -999, -999, -999);
           }
         }
       }