1.National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Moscow, Russia ;2.Osservatorio Astrofisico di Torino, Istituto Nazionale di Astrofisica, 10025, Pino Torinese (To), Italy ;
Abstract:
Physics of Atomic Nuclei - In comparison with calculations, the excess of multimuon events found in many experiments at ultrahigh energies of extensive air showers (EASs) cannot be explained using...