Abstract:
We present recent results from the Fly's Eye experiment. The results from the F.E. I and F.E. 11 stereo detectors indicate structure in the cosmic ray spectrum above 1018 eV. The composition of cosmic rays is found to change from a predominantly heavy composition near 1017 eV to a predominantly light one near 1019 eV. The spectral structure and changing composition can be accounted for by a simple two-component model. Higher statistics but lower resolution data from the F.E. I detector alone shows the presence of an outstanding 320 EeV energy event.
  • talk: Villars-sur-Ollon 1994/01/22