From 29fd87b6f34ef94d2201ba10348722353ff3729e Mon Sep 17 00:00:00 2001
From: Nicolas Strangmann <nicolas.strangmann@.cern.ch>
Date: Thu, 3 Jul 2025 14:21:31 +0200
Subject: [PATCH] [PWGEM/PhotonMeson] Add workaround for kTVXinEMC issues in
 data to BC wise GG task

---
 PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx b/PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx
index 33f3928076d..d02f33ea009 100644
--- a/PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx
+++ b/PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx
@@ -42,7 +42,8 @@ using SelectedMCClusters = soa::Filtered<soa::Join<aod::BCWiseClusters, aod::BCW
 struct EmcalBcWiseGammaGamma {
   HistogramRegistry mHistManager{"EmcalGammaGammaBcWiseHistograms"};
 
-  Configurable<bool> cfgRequirekTVXinEMC{"cfgRequirekTVXinEMC", true, "Reconstruct mesonss only in kTVXinEMC triggered BCs"};
+  Configurable<bool> cfgRequirekTVXinEMC{"cfgRequirekTVXinEMC", true, "Reconstruct mesons only in kTVXinEMC triggered BCs"};
+  Configurable<bool> cfgRequireEMCCell{"cfgRequireEMCCell", true, "Reconstruct mesons only in BCs containing at least one EMCal cell (workaround for kTVXinEMC trigger)"};
   Configurable<int> cfgSelectOnlyUniqueAmbiguous{"cfgSelectOnlyUniqueAmbiguous", 0, "0: all clusters, 1: only unique clusters, 2: only ambiguous clusters"};
 
   Configurable<int> cfgClusterDefinition{"cfgClusterDefinition", 13, "Clusterizer to be selected, e.g. 13 for kV3MostSplitLowSeed"};
@@ -289,6 +290,8 @@ struct EmcalBcWiseGammaGamma {
   {
     if (cfgRequirekTVXinEMC && !bc.haskTVXinEMC())
       return false;
+    if (cfgRequireEMCCell && !bc.hasEMCCell())
+      return false;
     if (cfgSelectOnlyUniqueAmbiguous == 1 && collisions.size() != 1)
       return false;
     if (cfgSelectOnlyUniqueAmbiguous == 2 && collisions.size() == 1)