Some interesting phenomena observed in cosmic-ray experiments by means of X-ray emulsion technique at super accelerator energies

V. M. Maximenko, V. S. Puchkov, S. E. Pyatovsky +2

In the energy range above the PCR "knee" (5-1000 PeV), the emulsion chamber data exhibit some new features which are hard to explain in the framework of the Standard Model. In this…