We present the first hybrid measurement of the average muon number in air showers at
ultrahigh energies, initiated by cosmic rays with zenith angles between 62° and 80°. The …

Abstract The Pierre Auger Observatory, located on a vast, high plain in western Argentina, is
the world׳ s largest cosmic ray observatory. The objectives of the Observatory are to probe …

SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST
ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY …

Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the
Surface Detector array (SD) of the Pierre Auger Observatory. We report here on searches …

The distribution of the arrival directions of cosmic rays, together with the spectrum and
composition indicators, are the main observables to try to understand their origin and nature …

This paper presents the results of different searches for correlations between very high-
energy neutrino candidates detected by IceCube and the highest-energy cosmic rays …

A measurement of the cosmic-ray spectrum for energies exceeding $4 {\times} 10^{18} $ eV
is presented, which is based on the analysis of showers with zenith angles greater than …

We present a trigger based on a pipelined artificial neural network implemented in a large
FPGA which after learning can recognize different types of waveforms from the Pierre Auger …

Designed as the first mission to explore the ultra-high energy universe from space, JEM-
EUSO observes the Earth's atmosphere at night to record the ultraviolet tracks generated by …

The surface detector (SD) array of the Pierre Auger Observatory needs an upgrade which
allows space for more complex triggers with higher bandwidth and greater dynamic range …