Author/Authors :
L.A Anchordoqui، نويسنده , , M.T. Dova، نويسنده , , T.P McCauley، نويسنده , , S Reucroft، نويسنده , , J.D. Swain، نويسنده ,
Abstract :
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base provides evidence, albeit still statistically limited, that non-nucleon primaries could be present at the end of the spectrum. In particular, the possible appearance of superheavy nuclei (seldom discussed in the literature) is analysed in detail.
