The present white paper is submitted as part of the “Snowmass” process to help inform the
long-term plans of the United States Department of Energy and the National Science …

The authors define “ultrahigh-energy cosmic rays”(UHECRs) as those cosmic rays with
energies above 10 18 eV. It had been anticipated that there would be a cutoff in the energy …

The origin of the highest-energy cosmic rays remains a mystery. The lack of a high-energy
cutoff in the cosmic-ray spectrum together with an apparently isotropic distribution of arrival …

The Astrophysics and Space Science Library is a series of high-level monographs and
edited volumes covering a broad range of subjects in Astrophysics, Astronomy, Cosmology …

We develop a model for explaining the data of Pierre Auger Observatory (Auger) for ultra
high energy cosmic rays (UHECR), in particular, the mass composition being steadily …

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 …

In this paper we review the extragalactic propagation of ultrahigh energy cosmic-ray
(UHECR). We present the different energy loss processes of protons and nuclei, and their …

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 …

Primary cosmic rays above energies of about 100 TeV are investigated by observations of
extensive air showers (EAS) using large area ground based detector installations for …

The Origin of Cosmic Rays above 10 18.5 eV ADS Classic is now deprecated. It will be
completely retired in October 2019. This page will automatically redirect to the new ADS …