3 papers
astro-ph.HE2020
Search for the imprint of axion-like particles in the highest-energy photons of hard -ray blazars
Rolf Buehler, Galo Gallardo, Gernot Maier +3
Axion-like particles (ALPs), predicted in theories beyond the Standard Model, can have observational effects on the transparency of the Universe to rays in the presence of magn…
astro-ph2005
Detection and imaging of atmospheric radio flashes from cosmic ray air showers
H. Falcke, W. D. Apel, A. F. Badea
The nature of ultrahigh-energy cosmic rays (UHECRs) at energies >10^20 eV remains a mystery. They are likely to be of extragalactic origin, but should be absorbed within ~50 Mpc th…
astro-ph2004
Primary Proton Spectrum of Cosmic Rays measured with Single Hadrons
T. Antoni, KASCADE Collaboration
The flux of cosmic-ray induced single hadrons near sea level has been measured with the large hadron calorimeter of the KASCADE experiment. The measurement corroborates former resu…