Adding copyright notice and listing authors in jetHadronsPid.cxx

Author: MyFavoriteGitHub

PWGJE/Tasks/jetHadronsPid.cxx

@@ -1,3 +1,22 @@
+// Copyright 2019-2026 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+/// \file jetHadronsPID.cxx
+/// \brief Analysis of hadrons in jets 
+/// \author Leonard Lorenc, WUT Warsaw, leonard.lorenc@cern.ch
+/// \author Aleksandra Mulewicz, WUT Warsaw, aleksandra.mulewicz@cern.ch
+/// \author Hubert Zalewski, WUT Warsaw, hubert.zalewski@cern.ch
+/// \author Janik Małgorzata malgorzata.janik@cern.ch
+/// \author Daniela Ruggiano daniela.ruggiano@cern.ch
+
 #include "PWGJE/Core/JetDerivedDataUtilities.h"
 #include "PWGJE/Core/JetUtilities.h"
 #include "PWGJE/DataModel/Jet.h"