scholarly journals Neutrino clustering in cold dark matter halos: Implications for ultrahigh energy cosmic rays

2003 ◽  
Vol 67 (2) ◽  
Author(s):  
Shwetabh Singh ◽  
Chung-Pei Ma
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Cold Dark Matter ◽  
Dark Matter Halos ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals Superheavy dark matter and ultrahigh-energy cosmic rays

2006 ◽  
Vol 84 (6-7) ◽  
pp. 537-543
Author(s):  
R Dick ◽  
K M Hopp ◽  
K E Wunderle
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Early Universe ◽  
Cosmic Ray ◽  
Pierre Auger Observatory ◽  
Ultrahigh Energy ◽  
Mass Window ◽  
Ultrahigh Energy Cosmic Rays ◽  
Superheavy Dark Matter ◽  
Arrival Directions

The phase of inflationary expansion in the early Universe produces superheavy relics in a mass window between 1012 and 1014 GeV. Decay or annihilation of these superheavy relics an explain the observed ultrahigh-energy cosmic rays beyond the Greisen–Zatsepin–Kuzmin cutoff. We emphasize that the pattern of cosmic-ray arrival directions seen by the Pierre Auger observatory will decide between the different proposals for the origin of ultrahigh-energy cosmic rays.PACS Nos.: 98.70.Sa, 98.70.–f, 95.35.+d, 14.80.–j

scholarly journals The Galactic magnetic field and its lensing of ultrahigh energy and Galactic cosmic rays

2015 ◽  
Vol 11 (A29B) ◽  
pp. 723-726 ◽  
Author(s):  
Glennys R. Farrar
Keyword(s):  
Magnetic Field ◽  
Dark Matter ◽  
Cosmic Rays ◽  
Solar System ◽  
Magnetic Fields ◽  
Galactic Cosmic Rays ◽  
Ultrahigh Energy ◽  
Galactic Magnetic Field ◽  
Ultrahigh Energy Cosmic Rays

AbstractIt has long been recognized that magnetic fields play an important role in many astrophysical environments, yet the strength and structure of magnetic fields beyond our solar system have been at best only qualitatively constrained. The Galactic magnetic field in particular is crucial for modeling the transport of Galactic CRs, for calculating the background to dark matter and CMB-cosmology studies, and for determining the sources of UHECRs. This report gives a brief overview of recent major advances in our understanding of the Galactic magnetic field (GMF) and its lensing of Galactic and ultrahigh energy cosmic rays.

scholarly journals Are ultrahigh energy cosmic rays a signal for supersymmetry?

1998 ◽  
Vol 57 (8) ◽  
pp. 4606-4613 ◽  
Author(s):  
Daniel J. H. Chung ◽  
Glennys R. Farrar ◽  
Edward W. Kolb
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays
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