English

Footprints of Super-GZK Cosmic Rays in the Pilliga State Forest

High Energy Physics - Phenomenology 2009-11-10 v1 Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Experiment High Energy Physics - Theory

Abstract

High energy cosmic ray data collected by the SUGAR Collaboration in the Pilliga State Forest have been re-analyzed using up-to-date shower simulations. Complete, inclined angle, Monte Carlo simulations reveal 2 events with energies in excess of 7×10197\times 10^{19} eV at 95% CL, independent of the choice of hadronic interaction model and of chemical composition of the primary. An additional 3 events, with mean energy \agt7×1019\agt 7\times 10^{19} eV, were also re-analyzed in the same manner. A lower bound on the flux at the high end of the spectrum, as observed in the Southern sky, is presented on the basis of our analysis.

Keywords

Cite

@article{arxiv.hep-ph/0310054,
  title  = {Footprints of Super-GZK Cosmic Rays in the Pilliga State Forest},
  author = {Luis Anchordoqui and Haim Goldberg},
  journal= {arXiv preprint arXiv:hep-ph/0310054},
  year   = {2009}
}

Comments

7 pages revtex, 7 figures