J. Allen, B. Alves, J. Arling, K. Augsten, E. Bagnaschi, G. Benato, Anna Bennecke, C. Borca, Paulo Braz, L. Brenner, J. Degens, Yannick Dengler, C. Dimitriadi, E. Diociaiuti, L. Dufour, P. Dunne, O. Etisken, Silvia Ferrario Ravasio, N. Fomin, A. Garcia Alonso, Leif Gellersen, A. Gsponer, T. Heřman, B. Hiti, L. Huhta, A. Ilg, Katevrina Jarkovsk'a, J. Jovicevic, L. Keszeghova, H. Kirschenmann, S. Klaver, Arman Korajac, A. Kotsokechagia, M. Küßner, A. Lelek, G. Lospalluto, P. Major, Veljko Maksimovic, Jakub Malczewski, Carla Marin Benito, Paula Martínez Suárez, V. Milošević, A. Modak, Arnau Morancho Tarda, Laura Moreno Valero, E. Niel, N. Nikiforou, Anja Novosel, P. Paakkinen, H. Pacey, Rute Pedro, Marko Pesut, G. Pietrzyk, Michael Pitt, V. Placinta, A. Dash, G'eraldine Rauber, M. Shopova, Radoslav Someonov, S. Simsek, K. Skovpen, F. Sopkova, Fernando Souza, Elisabetta Spadaro Norella, M. Urbaniak, L. Urda Gómez, Erik Wallin, V. Zaccolo, N. Zardoshti, G. Z. U. O. Edinburgh, Edinburgh, United Kingdom, É. Polytechnique, Ile-de-France, France, Deutsches Elektronen-Synchrotron Desy, Hamburg, Germany, Faculty of Nuclear Sciences, Physical Engineering, C. Prague, Prague, Czech Republic, Cern, Geneva, Switzerland, Infn Laboratori Nazionali del Gran Sasso, L’Aquila, Italy, U. C. Louvain, Brussels, Belgium, U. Torino, Infn, Turin, Institute for Physics, U. Graz, Graz, Austria, Nikhef National Institute for Subatomic Physics, U. Amsterdam, Amsterdam, Netherlands, Uppsala University, Uppsala, Sweden, National Laboratory of Frascati, Frascati, Blackett Laboratory, Imperial College London, London, K. University, Kirrikale, Turkey, Universityof Bergen, Bergen, Norway, Lund University, Lund, Institute of High Energy Physics, A. A. O. Sciences, Vienna, D. Physics, J. S. Institute, D. Physics, U. Ljubljana, Ljubljana, Slovenia, U. Jyvaskyla, Helsinki Institute of Physics, U. Helsinki, Helsinki, Finland, Physik-Institut, U. Zurich, Zúrich, Faculty of Mathematics, Physics, Charles University, Institute of Physics, U. Belgrade, Belgrade, Serbia, Informatics, Comenius University, Bratislava, Slovakia, Irfu, Cea, Universit'e Paris-Saclay, Gif-sur-yvette, I. Experimentalphysik, Ruhr-Universitát Bochum, Universiteit Antwerpen, Antwerpen, Institute for Particle Physics, Astrophysics, Eth Zurich, MTA-ELTE Lendulet Cms Particle, Nuclear Physics Group, E. University, Budapešť, Hungary, Henryk Niewodniczanski Institute of Nuclear Physics Polis Sciences, Krak'ow, Poland, Institut de Ciències del Cosmos, Universidad de Barcelona, Barcelona, Spain, Institut de F'isica d'Altes Energies, Universidad Autonoma Barcelona, Beijing, China, Rutherford Appleton Laboratory, Oxford, Niels Bohr Institute, U. Copenhagen, Copenhagen, Denmark, I. Physik, W. Münster, Munster, 'Ecole polytechnique f'ed'erale de Lausanne, Lausanne, U. Oxford, Laborat'orio de Instrumentaccao e F'isica Experimental de Part', Lisboa, Portugal, Ben-Gurion University, Beer-Sheva, Israel, Horia Hulubei National Institute of Physics, Nuclear Engineering, Bucharest-Magurele, România, I. F. N. Research, N. Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria, Sofia University, I. University, Iṡtanbul, G. University, Ghent, Slovak Academy of Sciences, University of Genoa, Genoa, University of Silesia in Katowice, Katowice, Centro de Investigaciones Energ'eticas Medioambientales Y, Madrid, U. Trieste, Trieste