scholarly journals Ultrahigh energy cosmic rays from a nearby extragalactic source in the diffusive regime

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Silvia Mollerach ◽  
Esteban Roulet
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Extragalactic Source ◽  
Diffusive Regime ◽  
Ultrahigh Energy Cosmic Rays

On the spectrum of ultrahigh energy cosmic rays and the γ-ray burst origin hypothesis

2002 ◽  
Vol 16 (3) ◽  
pp. 271-276 ◽  
Author(s):  
S.T. Scully ◽  
F.W. Stecker
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Γ Ray ◽  
Ultrahigh Energy Cosmic Rays ◽  
Origin Hypothesis

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

scholarly journals Radio-quiet active galactic nuclei as possible sources of ultrahigh-energy cosmic rays

2009 ◽  
Vol 80 (12) ◽  
Author(s):  
Asaf Pe’er ◽  
Kohta Murase ◽  
Peter Mészáros
Keyword(s):  
Cosmic Rays ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals Injection spectrum of ultrahigh energy cosmic rays in the top-down scenario

2004 ◽  
Vol 70 (2) ◽  
Author(s):  
Rahul Basu ◽  
Pijushpani Bhattacharjee
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Top Down ◽  
Ultrahigh Energy Cosmic Rays

Luminosity of ultrahigh energy cosmic rays as a probe of black strings

2017 ◽  
pp. 383-384
Author(s):  
Rita C. Anjos ◽  
Carlos H. Coimbra-Araújo
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays ◽  
Black Strings

scholarly journals Search for extragalactic sources of ultrahigh-energy cosmic rays

JETP Letters ◽  
2008 ◽  
Vol 87 (4) ◽  
pp. 185-189 ◽  
Author(s):  
A. A. Ivanov
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals Gravitational radiation from the collision of particles

2020 ◽  
Vol 35 (02n03) ◽  
pp. 2040028 ◽  
Author(s):  
M. A. Misyura
Keyword(s):  
Cosmic Rays ◽  
Gravitational Radiation ◽  
Present Moment ◽  
Mass Center ◽  
Ultrahigh Energy ◽  
Collision Time ◽  
Unresolved Problem ◽  
First Approximation ◽  
Ultrahigh Energy Cosmic Rays

At the present moment, there is an unresolved problem in the physics of cosmic rays. The problem concerns the origin of the ultrahigh energy cosmic rays. One of the possible mechanisms of the particle’s birth with such energy is bound to the processes occurring in the active nuclei of the galaxies. In this paper, we have examined a collision of superheavy particles. Using the Weinberg formalism, we have estimated gravitational radiation emitted during the collision in the first approximation. It was shown that, for a certain collision time, the energy lost by the ultrarelativistic particle is less than the value of the energy of the mass center of the collision and the mass of the colliding particles.

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