scholarly journals Study of Small-Scale Anisotropy of Ultra-High-Energy Cosmic Rays Observed in Stereo by the High Resolution Fly's Eye Detector

2004 ◽  
Vol 610 (2) ◽  
pp. L73-L76 ◽  
Author(s):  
R. U. Abbasi ◽  
T. Abu-Zayyad ◽  
J. F. Amann ◽  
G. Archbold ◽  
R. Atkins ◽  
...  
Keyword(s):  
High Resolution ◽  
Cosmic Rays ◽  
High Energy ◽  
Small Scale ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
High Resolution Fly's Eye

scholarly journals A Study of the Composition of Ultra–High‐Energy Cosmic Rays Using the High‐Resolution Fly’s Eye

2005 ◽  
Vol 622 (2) ◽  
pp. 910-926 ◽  
Author(s):  
R. U. Abbasi ◽  
T. Abu‐Zayyad ◽  
G. Archbold ◽  
R. Atkins ◽  
J. Bellido ◽  
...  
Keyword(s):  
High Resolution ◽  
Cosmic Rays ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
High Resolution Fly's Eye

scholarly journals Small‐Scale Clustering in the Isotropic Arrival Distribution of Ultra–High‐Energy Cosmic Rays and Implications for Their Source Candidates

2003 ◽  
Vol 586 (2) ◽  
pp. 1211-1231 ◽  
Author(s):  
Hiroyuki Yoshiguchi ◽  
Shigehiro Nagataki ◽  
Sin‐ya Tsubaki ◽  
Katsuhiko Sato
Keyword(s):  
Cosmic Rays ◽  
High Energy ◽  
Small Scale ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays

scholarly journals Planck Neutrinos as Ultra High Energy Cosmic Rays

2020 ◽  
Vol 29 (1) ◽  
pp. 40-46
Author(s):  
Dmitri L. Khokhlov
Keyword(s):  
Black Holes ◽  
Cosmic Rays ◽  
Standard Model ◽  
Active Galactic Nuclei ◽  
Planck Scale ◽  
Galactic Nuclei ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
The Standard Model

AbstractThe studied conjecture is that ultra high energy cosmic rays (UHECRs) are hypothetical Planck neutrinos arising in the decay of the protons falling onto the gravastar. The proton is assumed to decay at the Planck scale into positron and four Planck neutrinos. The supermassive black holes inside active galactic nuclei, while interpreted as gravastars, are considered as UHECR sources. The scattering of the Planck neutrinos by the proton at the Planck scale is considered. The Planck neutrinos contribution to the CR events may explain the CR spectrum from 5 × 1018 eV to 1020 eV. The muon number in the Planck neutrinos-initiated shower is estimated to be larger by a factor of 3/2 in comparison with the standard model that is consistent with the observational data.

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