From dab26fce5b2cedafa264f563a183116ac84b4399 Mon Sep 17 00:00:00 2001
From: ariffero <andrea.giovanni.riffero@cern.ch>
Date: Thu, 21 May 2026 14:22:54 +0200
Subject: [PATCH 1/2] Fix o2linter warnings on TLorenzVector

---
 PWGUD/Tasks/FwdMuonsUPC.cxx | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/PWGUD/Tasks/FwdMuonsUPC.cxx b/PWGUD/Tasks/FwdMuonsUPC.cxx
index ba75cd267b0..8626088270e 100644
--- a/PWGUD/Tasks/FwdMuonsUPC.cxx
+++ b/PWGUD/Tasks/FwdMuonsUPC.cxx
@@ -25,6 +25,7 @@
 
 #include "TLorentzVector.h"
 #include "TRandom3.h"
+#include <Math/Vector4D.h>
 
 #include <unordered_map>
 #include <vector>
@@ -349,9 +350,16 @@ struct FwdMuonsUPC {
   {
     float rAbs = fwdTrack.rAtAbsorberEnd();
     float pDca = fwdTrack.pDca();
-    TLorentzVector p;
     auto mMu = particleMass(kMuonPDG);
-    p.SetXYZM(fwdTrack.px(), fwdTrack.py(), fwdTrack.pz(), mMu);
+    ROOT::Math::PxPyPzMVector p{
+      fwdTrack.px(),
+      fwdTrack.py(),
+      fwdTrack.pz(),
+      mMu
+    };
+    //TLorentzVector p;
+    //auto mMu = particleMass(kMuonPDG);
+    //p.SetXYZM(fwdTrack.px(), fwdTrack.py(), fwdTrack.pz(), mMu);
     float eta = p.Eta();
     float pt = p.Pt();
     float pDcaMax = rAbs < kRAbsMid ? kPDca1 : kPDca2;

From fe0662a3f5059d22383a3b638cacbc0a32c3fdbb Mon Sep 17 00:00:00 2001
From: ALICE Action Bot <alibuild@cern.ch>
Date: Thu, 21 May 2026 12:26:44 +0000
Subject: [PATCH 2/2] Please consider the following formatting changes

---
 PWGUD/Tasks/FwdMuonsUPC.cxx | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/PWGUD/Tasks/FwdMuonsUPC.cxx b/PWGUD/Tasks/FwdMuonsUPC.cxx
index 8626088270e..7a311292bba 100644
--- a/PWGUD/Tasks/FwdMuonsUPC.cxx
+++ b/PWGUD/Tasks/FwdMuonsUPC.cxx
@@ -355,11 +355,10 @@ struct FwdMuonsUPC {
       fwdTrack.px(),
       fwdTrack.py(),
       fwdTrack.pz(),
-      mMu
-    };
-    //TLorentzVector p;
-    //auto mMu = particleMass(kMuonPDG);
-    //p.SetXYZM(fwdTrack.px(), fwdTrack.py(), fwdTrack.pz(), mMu);
+      mMu};
+    // TLorentzVector p;
+    // auto mMu = particleMass(kMuonPDG);
+    // p.SetXYZM(fwdTrack.px(), fwdTrack.py(), fwdTrack.pz(), mMu);
     float eta = p.Eta();
     float pt = p.Pt();
     float pDcaMax = rAbs < kRAbsMid ? kPDca1 : kPDca2;