Search for ultra-high energy cosmic ray multiplets in the Pierre Auger Observatory data

THE PIERRE AUGER COLLABORATION (AUTOR 434 DE 474); M. TUEROS (COAUTOR)

Beijing

Conferencia; 32nd International Cosmic Ray Conference 2011; 2011

Institute of High Energy Physics, Chinese Academy of Sciences

Abstract: We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or ?multiplets?) which exhibit a correlation between arrival direction and the inverse of the energy. These signatures are expected from sets of events coming from the same source after having been deflected by intervening coherent magnetic fields. We here report the largest multiplets found in the data and compute the probability that they arise by chance from an isotropic distribution of events. There is no statistically significant evidence for the presence of multiplets arising from magnetic deflections in the present data.