message: Added a Pt selection cut for charged pions
  Added line 1337 "if (vCandidateCharged.Pt() <0.11)"
diff: @@ -1334,6 +1334,7 @@ void AliAnalysisTaskUpcFourPi::RunAODhist()
  vCandidateCharged = vPion[0] + vPion[1] + vPion[2] + vPion[3];
  + if (vCandidateCharged.Pt() <0.11)
  fAllChargedFourPion->Fill(vCandidateCharged.M());
  }
  