From 98a1b883f63b1ab11a9bc04b097da6af674a55ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lucas=20Jos=C3=A9?=
 <52935244+lucasjsilva@users.noreply.github.com>
Date: Wed, 1 Apr 2026 17:38:13 +0200
Subject: [PATCH] Add selection of reconstructed events that have an associated
 generated event

---
 PWGLF/Tasks/GlobalEventProperties/studyPnch.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/PWGLF/Tasks/GlobalEventProperties/studyPnch.cxx b/PWGLF/Tasks/GlobalEventProperties/studyPnch.cxx
index a0ef2af5aa0..62f5e93d830 100644
--- a/PWGLF/Tasks/GlobalEventProperties/studyPnch.cxx
+++ b/PWGLF/Tasks/GlobalEventProperties/studyPnch.cxx
@@ -357,6 +357,9 @@ struct StudyPnch {
       if (RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
         continue;
       }
+      if (!RecCol.has_mcCollision()) {
+        continue;
+      }
       auto recTracksPart = RecTracks.sliceBy(perCollision, RecCol.globalIndex());
       auto multrec = countNTracksMcCol(recTracksPart, RecCol);
       if (multrec > 0) {