From e02225734e15dae83fe340be75e3580e131d6a4a Mon Sep 17 00:00:00 2001
From: Swati Saha <swatisaha067@gmail.com>
Date: Tue, 2 Jun 2026 18:09:56 +0530
Subject: [PATCH 1/2] Bug with efficiency correction

---
 PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
index a83f25f8e3b..fddd5815ce1 100644
--- a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
+++ b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
@@ -942,11 +942,10 @@ struct V0ptHadPiKaProt {
     }
     int bin = hEffAllCharged->FindBin(candidate.pt());
     float eff = hEffAllCharged->GetBinContent(bin);
-    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return ptweight;
+    return eff;
   }
 
   template <typename T>
@@ -957,11 +956,10 @@ struct V0ptHadPiKaProt {
     }
     int bin = hEffPion->FindBin(candidate.pt());
     float eff = hEffPion->GetBinContent(bin);
-    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return ptweight;
+    return eff;
   }
 
   template <typename T>
@@ -972,11 +970,10 @@ struct V0ptHadPiKaProt {
     }
     int bin = hEffKaon->FindBin(candidate.pt());
     float eff = hEffKaon->GetBinContent(bin);
-    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return ptweight;
+    return eff;
   }
 
   template <typename T>
@@ -987,11 +984,10 @@ struct V0ptHadPiKaProt {
     }
     int bin = hEffProton->FindBin(candidate.pt());
     float eff = hEffProton->GetBinContent(bin);
-    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return ptweight;
+    return eff;
   }
 
   void processMCGen(aod::McCollision const& mcCollision, aod::McParticles const& mcParticles, const soa::SmallGroups<EventCandidatesMC>& collisions, MyMCTracks const& tracks)

From 1bbcb169487733d18b2365a6197eb764994c2012 Mon Sep 17 00:00:00 2001
From: Swati Saha <swatisaha067@gmail.com>
Date: Tue, 2 Jun 2026 18:21:21 +0530
Subject: [PATCH 2/2] Fix

---
 .../Tasks/v0ptHadPiKaProt.cxx                 | 28 +++++++++++--------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
index fddd5815ce1..921c33cfed4 100644
--- a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
+++ b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
@@ -935,59 +935,63 @@ struct V0ptHadPiKaProt {
   }
 
   template <typename T>
-  float getEffAllCharged(const T& candidate)
+  float getEffWeightAllCharged(const T& candidate)
   {
     if (!cfgLoadPtEffWeights || !hEffAllCharged) {
       return 1.0;
     }
     int bin = hEffAllCharged->FindBin(candidate.pt());
     float eff = hEffAllCharged->GetBinContent(bin);
+    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return eff;
+    return ptweight;
   }
 
   template <typename T>
-  float getEffPion(const T& candidate)
+  float getEffWeightPion(const T& candidate)
   {
     if (!cfgLoadPtEffWeights || !hEffPion) {
       return 1.0;
     }
     int bin = hEffPion->FindBin(candidate.pt());
     float eff = hEffPion->GetBinContent(bin);
+    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return eff;
+    return ptweight;
   }
 
   template <typename T>
-  float getEffKaon(const T& candidate)
+  float getEffWeightKaon(const T& candidate)
   {
     if (!cfgLoadPtEffWeights || !hEffKaon) {
       return 1.0;
     }
     int bin = hEffKaon->FindBin(candidate.pt());
     float eff = hEffKaon->GetBinContent(bin);
+    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return eff;
+    return ptweight;
   }
 
   template <typename T>
-  float getEffProton(const T& candidate)
+  float getEffWeightProton(const T& candidate)
   {
     if (!cfgLoadPtEffWeights || !hEffProton) {
       return 1.0;
     }
     int bin = hEffProton->FindBin(candidate.pt());
     float eff = hEffProton->GetBinContent(bin);
+    float ptweight = 1.0 / eff;
     if (!std::isfinite(ptweight) || ptweight <= 0) {
       return 1.0;
     }
-    return eff;
+    return ptweight;
   }
 
   void processMCGen(aod::McCollision const& mcCollision, aod::McParticles const& mcParticles, const soa::SmallGroups<EventCandidatesMC>& collisions, MyMCTracks const& tracks)
@@ -1401,7 +1405,7 @@ struct V0ptHadPiKaProt {
 
       double effweight = 1.0;
       if (cfgLoadPtEffWeights) {
-        effweight = 1.0 / getEffAllCharged(track); // NUE weight
+        effweight = getEffWeightAllCharged(track); // NUE weight
       }
 
       // inclusive charged particles
@@ -1519,9 +1523,9 @@ struct V0ptHadPiKaProt {
       double effweightKaon = 1.0;
       double effweightProton = 1.0;
       if (cfgLoadPtEffWeights) {
-        effweightPion = 1.0 / getEffPion(track);     // NUE weight for pion
-        effweightKaon = 1.0 / getEffKaon(track);     // NUE weight for kaon
-        effweightProton = 1.0 / getEffProton(track); // NUE weight for proton
+        effweightPion = getEffWeightPion(track);     // NUE weight for pion
+        effweightKaon = getEffWeightKaon(track);     // NUE weight for kaon
+        effweightProton = getEffWeightProton(track); // NUE weight for proton
       }
 
       if (track.sign() != 0) {