From 5ce3297c5be85a820e54212bb4c72590b099b11b Mon Sep 17 00:00:00 2001
From: miedema-11 <1260971129@qq.com>
Date: Wed, 26 Aug 2026 23:57:15 +0800
Subject: [PATCH] get weff2 corrected

---
 PWGUD/Tasks/flowCorrelationsUpc.cxx | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/PWGUD/Tasks/flowCorrelationsUpc.cxx b/PWGUD/Tasks/flowCorrelationsUpc.cxx
index 57114a3f977..faeb7de083f 100644
--- a/PWGUD/Tasks/flowCorrelationsUpc.cxx
+++ b/PWGUD/Tasks/flowCorrelationsUpc.cxx
@@ -470,9 +470,11 @@ struct FlowCorrelationsUpc {
       double phi1 = RecoDecay::phi(momentum1);
       double eta1 = RecoDecay::eta(momentum1);
 
-      float weff1 = 1., wacc1 = 1.;
+      float weff1 = 1.;
+      if (!getEfficiencyCorrection(weff1, eta1, pt1, posZ))
+        continue;
       if (system == SameEvent) {
-        registry.fill(HIST("Trig_hist"), fSampleIndex, posZ, independent, pt1, eventWeight * weff1 * wacc1);
+        registry.fill(HIST("Trig_hist"), fSampleIndex, posZ, independent, pt1, eventWeight * weff1);
       }
 
       for (auto const& track2 : tracks2) {
@@ -495,7 +497,7 @@ struct FlowCorrelationsUpc {
         double phi2 = RecoDecay::phi(momentum2);
         double eta2 = RecoDecay::eta(momentum2);
 
-        float weff2 = 1., wacc2 = 1.;
+        float weff2 = 1.;
         if (mEfficiency) {
           weff2 = efficiencyCache[track2.filteredIndex()];
         } else {
@@ -505,7 +507,7 @@ struct FlowCorrelationsUpc {
         float deltaPhi = RecoDecay::constrainAngle(phi1 - phi2, -PIHalf);
         float deltaEta = eta1 - eta2;
 
-        float weight = eventWeight * weff1 * weff2 * wacc1 * wacc2;
+        float weight = eventWeight * weff1 * weff2;
 
         // Merging cut
         if (std::abs(deltaEta) < cfgCutMerging) {