Search for Ultra-High Energy Photons with the Pierre Auger Observatory
arXiv:0710.0025
Abstract
Data taken at the Pierre Auger Observatory are used to search for air showers initiated by ultra-high energy (UHE) photons. Results of searches are reported from hybrid observations where events are measured with both fluorescence and array detectors. Additionally, a more stringent test of the photon fluxes predicted with energies above 10^19 eV is made using a larger data set measured using only the surface detectors of the observatory.
Contribution to the 30th International Cosmic Ray Conference, Merida Mexico, July 2007