Search for Correlated High Energy Cosmic Ray Events with CHICOS

Abstract

We present the results of a search for time correlations in high energy cosmic ray data (primary E > 10^14 eV) collected by the California HIgh school Cosmic ray ObServatory (CHICOS) array. Data from 69 detector sites spread over an area of 400 km^2 were studied for evidence of isolated events separated by more than 1 km with coincidence times ranging from 1 microseconds up to 1 second. We report upper limits for the coincidence probability as a function of coincidence time.

4 pages, 4 figures, Proceedings of 29th International Cosmic Ray Conference (ICRC) 2005, Pune, India