[PWGLF] Add FV0A-based centrality estimator (#12534)

Author: abmodak

PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx

@@ -48,13 +48,13 @@ using namespace o2::framework::expressions;
 using namespace o2::aod::track;
 using namespace o2::aod::evsel;
 
-using CollisionDataTable = soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNGlobals, aod::CentMFTs>;
+using CollisionDataTable = soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFV0As, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNGlobals, aod::CentMFTs>;
 using ColDataTablepp = soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Ms>;
 using TrackDataTable = soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::TrackSelection>;
 using FilTrackDataTable = soa::Filtered<TrackDataTable>;
 using CollisionMCTrueTable = aod::McCollisions;
 using TrackMCTrueTable = aod::McParticles;
-using CollisionMCRecTable = soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNGlobals, aod::CentMFTs>>;
+using CollisionMCRecTable = soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFV0As, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNGlobals, aod::CentMFTs>>;
 using ColMCRecTablepp = soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Ms>>;
 using TrackMCRecTable = soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::McTrackLabels, aod::TrackSelection>;
 using FilTrackMCRecTable = soa::Filtered<TrackMCRecTable>;
@@ -160,6 +160,7 @@ struct HeavyionMultiplicity {
   Configurable<bool> isApplyNoHighMultCollInPrevRof{"isApplyNoHighMultCollInPrevRof", false, "Enable NoHighMultCollInPrevRof cut"};
   Configurable<bool> isApplyFT0CbasedOccupancy{"isApplyFT0CbasedOccupancy", false, "Enable FT0CbasedOccupancy cut"};
   Configurable<bool> isApplyCentFT0C{"isApplyCentFT0C", true, "Centrality based on FT0C"};
+  Configurable<bool> isApplyCentFV0A{"isApplyCentFV0A", false, "Centrality based on FV0A"};
   Configurable<bool> isApplyCentFT0CVariant1{"isApplyCentFT0CVariant1", false, "Centrality based on FT0C variant1"};
   Configurable<bool> isApplyCentFT0M{"isApplyCentFT0M", false, "Centrality based on FT0A + FT0C"};
   Configurable<bool> isApplyCentNGlobal{"isApplyCentNGlobal", false, "Centrality based on global tracks"};
@@ -318,6 +319,9 @@ struct HeavyionMultiplicity {
     if (isApplyCentFT0C) {
       cent = col.centFT0C();
     }
+    if (isApplyCentFV0A) {
+      cent = col.centFV0A();
+    }
     if (isApplyCentFT0CVariant1) {
       cent = col.centFT0CVariant1();
     }