From 96d66e5a0b4b00a90da9683510728d73f3b94f3b Mon Sep 17 00:00:00 2001
From: Shirajum Monira <shirajum.monira@cernch>
Date: Wed, 15 Nov 2023 21:16:21 +0100
Subject: [PATCH 1/2] fixed track-v0 pair check

---
 PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h b/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
index b8fb1afce44..34359882e7c 100644
--- a/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
+++ b/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
@@ -72,17 +72,18 @@ class FemtoUniversePairCleaner
       }
       return part1.globalIndex() != part2.globalIndex();
     } else if constexpr (mPartOneType == o2::aod::femtouniverseparticle::ParticleType::kTrack && mPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kV0) {
-      /// Track-V0 combination
+      /// Track-V0 combination part1 is hadron and part2 is v0
       if (part2.partType() != o2::aod::femtouniverseparticle::ParticleType::kV0) {
         LOG(fatal) << "FemtoUniversePairCleaner: passed arguments don't agree with FemtoUniversePairCleaner instantiation! Please provide second argument kV0 candidate.";
         return false;
       }
+      // Getting v0 (part2) children
       const auto& posChild = particles.iteratorAt(part2.index() - 2);
       const auto& negChild = particles.iteratorAt(part2.index() - 1);
-      if (part1.globalIndex() != posChild.globalIndex() && part2.globalIndex() != negChild.globalIndex()) {
-        return true;
-      }
+      if (part1.globalIndex() == posChild.globalIndex() || part1.globalIndex() == negChild.globalIndex()) {
       return false;
+      }
+      return part1.globalIndex() != part2.globalIndex();
     } else if constexpr (mPartOneType == o2::aod::femtouniverseparticle::ParticleType::kTrack && mPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kPhi) {
       /// Track-Phi combination part1 is Phi and part 2 is hadron
       if (part1.partType() != o2::aod::femtouniverseparticle::ParticleType::kTrack || part2.partType() != o2::aod::femtouniverseparticle::ParticleType::kPhi) {

From 1ed132f74044aba003ae30283fa594e2f853e735 Mon Sep 17 00:00:00 2001
From: Shirajum Monira <shirajum.monira@cernch>
Date: Wed, 15 Nov 2023 21:34:27 +0100
Subject: [PATCH 2/2] clang-format check done

---
 PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h b/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
index 34359882e7c..165bdcea6e6 100644
--- a/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
+++ b/PWGCF/FemtoUniverse/Core/FemtoUniversePairCleaner.h
@@ -81,7 +81,7 @@ class FemtoUniversePairCleaner
       const auto& posChild = particles.iteratorAt(part2.index() - 2);
       const auto& negChild = particles.iteratorAt(part2.index() - 1);
       if (part1.globalIndex() == posChild.globalIndex() || part1.globalIndex() == negChild.globalIndex()) {
-      return false;
+        return false;
       }
       return part1.globalIndex() != part2.globalIndex();
     } else if constexpr (mPartOneType == o2::aod::femtouniverseparticle::ParticleType::kTrack && mPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kPhi) {