From e3d28bb8c8af1333a6400e28506021be5c868b4a Mon Sep 17 00:00:00 2001
From: jikim1290 <jikim1290@gmail.com>
Date: Tue, 10 Nov 2026 13:05:17 +0900
Subject: [PATCH] fix bug for selection

---
 PWGLF/Tasks/Resonances/cha01710analysis.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PWGLF/Tasks/Resonances/cha01710analysis.cxx b/PWGLF/Tasks/Resonances/cha01710analysis.cxx
index 6a23c0dec06..664cf2185b9 100644
--- a/PWGLF/Tasks/Resonances/cha01710analysis.cxx
+++ b/PWGLF/Tasks/Resonances/cha01710analysis.cxx
@@ -337,7 +337,7 @@ struct Cha01710analysis {
          std::abs(v0.mAntiLambda() - constants::physics::MassLambda0) < v0Cuts.cfgLambdaMassWindow)) {
       return V0MassRegion::kReject;
     }
-    if (v0Cuts.cfgApplyArmenterosCut && v0.qtarm() < v0Cuts.cfgArmenterosCut) {
+    if (v0Cuts.cfgApplyArmenterosCut && v0.qtarm() < v0Cuts.cfgArmenterosCut * std::fabs(v0.alpha())) {
       return V0MassRegion::kReject;
     }