UA2 Collaboration,J. Alitti,R. Ansari,R. E. Ansorge,D. Autiero,P. Bareyre,G. Blaylock,P. Bonamy,Maurizio Bonesini,K. Borer,M. Bourliaud,D. Buskulic,Giovanni Carboni,D. Cavalli,V. Cavasinni,P. Cenci,J. C. Chollet,C. Conta,G. Costa,F. Costantini,A. Cravero,A. Dell'acqua,T. Delprete,R. S. DeWolf,L. DiLella,Gary Egan,K. F. Einsweiler,L. Fayard,A. Federspiel,R. Ferrari,M. Fraternali,D. Froidevaux,G. Fumagalli,J. M. Gaillard,F. Gianotti,O. Gildemeister,C. Gössling,V. G. Goggi,S. Grünendahl,K. Hara,S. Hellman,E. Hugentobler,K. Hultqvist,E. Iacopini,J. Incandela,K. Jakobs,P. Jenni,E. E. Kluge,N. Kurz,Stefano Lami,P. Lariccia,Michel Lefebvre,Lucie Linssen,Michele Livan,P. Lubrano,C. Magneville,L. Mandelli,L. Mapelli,M. Mazzanti,K. Meier,B. Merkel,J. P. Meyer,M. Moniez,R. Moning,M. Morganti,L. Müller,D. J. Munday,C. Onions,T. Pal,M. A. Parker,G. Parrour,F. Pastore,E. Pennacchio,J. M. Pentney,M. Pepe,Laura Perini,C. Petridou,P. Petroff,H. Plothow-Besch,G. Polesello,A. Poppleton,K. Pretzl,M. Primavera,M. Punturo,L. Rasmussen,J. P. Repellin,A. Rimoldi,P. Scampoli,J. Schacher,V. Simak,S. L. Singh,S. Stapnes,A. V. Stirling,F. Tondini,S. N. Tovey,E. Tsesmelis,G. Unal,M. Valdata-Nappi,V. Vercesi,A. R. Weidberg,P. S. Wells,T. O. White,D. R. Wood,S. A. Wotton,H. Zaccone;UA2 Collaboration;J. Alitti;R. Ansari;R. E. Ansorge;D. Autiero;P. Bareyre;G. Blaylock;P. Bonamy;Maurizio Bonesini;K. Borer;M. Bourliaud;D. Buskulic;Giovanni Carboni;D. Cavalli;V. Cavasinni;P. Cenci;J. C. Chollet;C. Conta;G. Costa;F. Costantini;A. Cravero;A. Dell'acqua;T. Delprete;R. S. DeWolf;L. DiLella;Gary Egan;K. F. Einsweiler;L. Fayard;A. Federspiel;R. Ferrari;M. Fraternali;D. Froidevaux;G. Fumagalli;J. M. Gaillard;F. Gianotti;O. Gildemeister;C. Gössling;V. G. Goggi;S. Grünendahl;K. Hara;S. Hellman;E. Hugentobler;K. Hultqvist;E. Iacopini;J. Incandela;K. Jakobs;P. Jenni;E. E. Kluge;N. Kurz;Stefano Lami;P. Lariccia;Michel Lefebvre;Lucie Linssen;Michele Livan;P. Lubrano;C. Magneville;L. Mandelli;L. Mapelli;M. Mazzanti;K. Meier;B. Merkel;J. P. Meyer;M. Moniez;R. Moning;M. Morganti;L. Müller;D. J. Munday;C. Onions;T. Pal;M. A. Parker;G. Parrour;F. Pastore;E. Pennacchio;J. M. Pentney;M. Pepe;Laura Perini;C. Petridou;P. Petroff;H. Plothow-Besch;G. Polesello;A. Poppleton;K. Pretzl;M. Primavera;M. Punturo;L. Rasmussen;J. P. Repellin;A. Rimoldi;P. Scampoli;J. Schacher;V. Simak;S. L. Singh;S. Stapnes;A. V. Stirling;F. Tondini;S. N. Tovey;E. Tsesmelis;G. Unal;M. Valdata-Nappi;V. Vercesi;A. R. Weidberg;P. S. Wells;T. O. White;D. R. Wood;S. A. Wotton;H. Zaccone;