[PWGEM/PhotonMeson] add cfgRequireTVXinEMC (#12688)

Author: dsekihat

PWGEM/Dilepton/TableProducer/eventSelection.cxx

@@ -61,6 +61,8 @@ struct EMEventSelection {
   Configurable<float> cfgFT0COccupancyMax{"cfgFT0COccupancyMax", 1000000000, "max. occupancy"};
   Configurable<bool> cfgRequireNoCollInTimeRangeStandard{"cfgRequireNoCollInTimeRangeStandard", false, "require no collision in time range standard"};
 
+  Configurable<bool> cfgRequireTVXinEMC{"cfgRequireTVXinEMC", false, "require kTVXinEMC (only for EMC analyses)"};
+
   o2::aod::rctsel::RCTFlagsChecker rctChecker;
 
   void init(InitContext&)
@@ -113,6 +115,10 @@ struct EMEventSelection {
       return false;
     }
 
+    if (cfgRequireTVXinEMC && !collision.alias_bit(triggerAliases::kTVXinEMC)) {
+      return false;
+    }
+
     if constexpr (std::is_same_v<std::decay_t<TCollision>, MyCollisions_Cent::iterator>) {
       const float centralities[3] = {collision.centFT0M(), collision.centFT0A(), collision.centFT0C()};
       if (centralities[cfgCentEstimator] < cfgCentMin || cfgCentMax < centralities[cfgCentEstimator]) {