We review open questions and prospects for progress in ultrahigh-energy cosmic ray
(UHECR) research, based on a series of discussions that took place during the “The High …

The observation of photons with energies above 1018 eV would open a new window in
cosmic-ray research, with possible impact on astrophysics, particle physics, cosmology and …

We argue that an astrophysical solution to the ultrahigh energy cosmic ray (UHECR)
problem is viable. The detailed study of UHECR energy spectra is performed. The spectral …

We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-
Energy Extension (TALE) air fluorescence detector (FD). The TALE air FD is also sensitive to …

We evaluate the exposure during nadir observations with JEM-EUSO, the Extreme Universe
Space Observatory, on-board the Japanese Experiment Module of the International Space …

Nonlinear kinetic theory of cosmic-ray (CR) acceleration in supernova remnants is employed
to calculate CR spectra. The magnetic field in SNRs is assumed to be significantly amplified …

Based on high quality surgery and scientific data, scientists and surgeons are committed to
protecting patients as well as healthcare staff and hereby provide this Guidance to address …

Recent progress suggests we are moving towards a quantitative understanding of the whole
cosmic ray spectrum, and that many bumps due to different components and processes hide …

The energy spectrum of cosmic rays in the range E∼ 10 15 eV to 6× 10 19 eV is studied in
this paper using air Cherenkov light detectors of the Yakutsk array. The total flux of photons …

We present the main results of the Extensive Air Shower Cherenkov array Tunka-25. They
cover the energy spectrum from 8· 10 14 to 10 17 eV and mass composition of primary …