A critical review of the standard paradigm for the origin of Galactic cosmic rays (CRs) is
presented. Recent measurements of local and far-away CRs reveal unexpected behaviors …

In cosmic ray physics extensive progress has been made in recent years, both concerning
theory and observation. The vast details in direct, indirect and secondary detections on the …

Weakly interacting massive particles (WIMPs) are a theoretical class of particles that are
excellent dark matter candidates. WIMP annihilation or decay may produce essentially …

Abstract The High Altitude Water Cherenkov (HAWC) observatory is an array of large water
Cherenkov detectors sensitive to gamma rays and hadronic cosmic rays in the energy band …

This review paper commemorates a century of cosmic ray research, with emphasis on the
plasma physics aspects. Cosmic rays comprise only∼ 10− 9 of interstellar particles by …

Results are presented of a harmonic analysis of the large-scale cosmic-ray (CR) anisotropy
as observed by the Milagro observatory. We show a two-dimensional display of the sidereal …

In the last few decades, a number of experiments have provided long-term, statistically
significant evidence of a faint sidereal anisotropy in the cosmic-ray arrival direction …

Over the last three years, several satellite and balloon observatories have suggested
intriguing features in the cosmic ray lepton spectra. Most notably, the PAMELA satellite has …

Dark matter candidates such as weakly interacting massive particles are predicted to
annihilate or decay into Standard Model particles, leaving behind distinctive signatures in …

We report on the observation of anisotropy in the arrival direction distribution of cosmic rays
at PeV energies. The analysis is based on data taken between 2009 and 2012 with the …