From b4f759009c7d2ecff42bfebd6c6b1a661e36293e Mon Sep 17 00:00:00 2001
From: abmodak <67369858+abmodak@users.noreply.github.com>
Date: Sat, 6 Jun 2026 00:43:30 +0200
Subject: [PATCH] Add multNTracksPV multiplicity estimator in the task

---
 .../TwoParticleCorrelations/TableProducer/longrangeMaker.cxx  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/PWGCF/TwoParticleCorrelations/TableProducer/longrangeMaker.cxx b/PWGCF/TwoParticleCorrelations/TableProducer/longrangeMaker.cxx
index 03a5d861653..0eaaf4a4f82 100644
--- a/PWGCF/TwoParticleCorrelations/TableProducer/longrangeMaker.cxx
+++ b/PWGCF/TwoParticleCorrelations/TableProducer/longrangeMaker.cxx
@@ -117,6 +117,7 @@ struct LongrangeMaker {
     Configurable<bool> isApplyNoCollInRofStrict{"isApplyNoCollInRofStrict", false, "Enable NoCollInRofStrict cut"};
     Configurable<bool> isApplyNoHighMultCollInPrevRof{"isApplyNoHighMultCollInPrevRof", false, "Enable NoHighMultCollInPrevRof cut"};
     Configurable<bool> isApplyCentFT0C{"isApplyCentFT0C", false, "Centrality based on FT0C"};
+    Configurable<bool> isApplyMultNTracksPV{"isApplyMultNTracksPV", false, "Multiplicity based on MultNTracksPV"};
     Configurable<bool> isApplyCentFV0A{"isApplyCentFV0A", false, "Centrality based on FV0A"};
     Configurable<bool> isApplyCentFT0M{"isApplyCentFT0M", false, "Centrality based on FT0A + FT0C"};
     Configurable<bool> isApplyOccuSelection{"isApplyOccuSelection", false, "Enable occupancy selection"};
@@ -1140,6 +1141,9 @@ struct LongrangeMaker {
   float selColCent(CheckColCent const& col)
   {
     auto cent = -1;
+    if (cfgevtsel.isApplyMultNTracksPV) {
+      cent = col.multNTracksPV();
+    }
     if (cfgevtsel.isApplyCentFT0C) {
       cent = col.centFT0C();
     }