Arrival directions and chemical composition of ultrahigh energy cosmic rays

2001 ◽  
Vol 97 (1-3) ◽  
pp. 162-164 ◽  
Author(s):  
A.A. Mikhailov
Keyword(s):  
Chemical Composition ◽  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays ◽  
Arrival Directions

scholarly journals Arrival Directions of Ultrahigh-Energy Cosmic Rays

2019 ◽  
Vol 1208 ◽  
pp. 012013
Author(s):  
Alan G. Chávez-Meza ◽  
Juan C. Arteaga-Velázquez ◽  
Luis M. Villaseñor-Cendejas
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays ◽  
Arrival Directions

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

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