The energy spectrum of cosmic rays at the highest energies
1 School of Chemistry & Physics, The University of Adelaide, Adelaide, S.A., Australia
2 Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
3 Karlsruhe Institute of Technology – Campus North – Institut für Kernphysik, Karlsruhe, Germany
4 Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Paris, France
5 University of Utah, Department of Physics and High Energy Astrophysics Institute, Salt Lake City, Utah, USA
6 Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Japan
7 Rutgers-The State University of New Jersey, Department of Physics and Astronomy, Piscataway, New Jersey, USA
8 Graduate School and Engineering, Tokyo Institute of Technology, Tokyo, Japan
9 Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, Yakutsk, Russia
One of several working groups established for this workshop was charged with examining results and methods associated with the UHECR energy spectrum. We summarize the results of our discussions, which include a better understanding of the analysis choices made by groups and their motivation. We find that the energy spectra determined by the larger experiments are consistent in normalization and shape after energy scaling factors are applied. Those scaling factors are within systematic uncertainties in the energy scale, and we discuss future work aimed at reducing these systematics.
© Owned by the authors, published by EDP Sciences, 2013
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