We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting
views and insights from all disciplines involved—cosmology, astrophysics, nuclear, and …

In the last fifteen years radio detection made it back to the list of promising techniques for
extensive air showers, firstly, due to the installation and successful operation of digital radio …

Neutrinos with energies above 1017 eV are detectable with the Surface Detector Array of the
Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all …

Tau neutrinos are the least studied particle in the standard model. This whitepaper
discusses the current and expected upcoming status of tau neutrino physics with attention to …

We present a combined fit of a simple astrophysical model of UHECR sources to both the
energy spectrum and mass composition data measured 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 Pierre Auger Observatory has begun a major Upgrade of its already impressive
capabilities, with an emphasis on improved mass composition determination using the …

In this report we review the important progress made in recent years towards understanding
the experimental data on ultra-high-energy (E≳ 1 0 9 GeV) cosmic rays. We begin with a …

We propose a new thermal freeze-out mechanism that results in dark matter masses
exceeding the unitarity bound by many orders of magnitude, without violating perturbative …

Two of the most fundamental properties of the dark matter particle, the mass and the lifetime,
are only weakly constrained by the astronomical and cosmological evidence of dark matter …