1. Department of Experimental Particle Physics and Applications, Jagiellonian University, ul. Łojasiewicza 11, 30-348 Cracow, Poland
2. INFN, Laboratori Nazionali di Frascati, Via Enrico Fermi 54, 00044 Frascati RM, Italy
3. Horia Hulubei National Institute of Physics and Nuclear Engineering, Street Reactorului 30, P. O. BOX MG-6, Bucharest, Magurele, Romania
4. Department of Physics, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
5. Stefan-Meyer-Institut für Subatomare Physik, Kegelgasse 27, 1030 Vienna, Austria
6. Università degli Studi di Roma Tor Vergata, Via Cracovia snc, 00133 Rome, Italy
7. Physik Department E62, Technische Universität München, James-Franck-Street 1, 85748 Garching, Germany
8. Centro Ricerche Enrico Fermi – Museo Storico della Fisica e Centro Studi e Ricerche, “Enrico Fermi”, Piazza del Viminale 1, 00184 Roma, Italy
9. Excellence Cluster “Origin and Structure of the Universe”, Boltzmann Street 2, D-85748 Garching, Germany
10. RIKEN, The Institute of Physics and Chemical Research, 2-1 Hirosawa, Wako 351-0198 Saitama, Japan
11. Departament de Fisica Quantica i Astrofisica and Institut de Ciencies del Cosmos, Universitat de Barcelona, Marti i Franques 1, Marti i Franques 1, 08028 Barcelona, Spain
12. Department of Theoretical Physics, National Center for Nuclear Research, ul. Pasteura 7, 02-093 Warsaw, Poland