scholarly journals Hunting for superheavy dark matter with the highest-energy cosmic rays

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Esteban Alcantara ◽  
Luis A. Anchordoqui ◽  
Jorge F. Soriano
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Superheavy Dark Matter

CONSTRAINING SHDM MODEL OF UHECR WITH SUGAR DATA

2004 ◽  
Vol 19 (13n16) ◽  
pp. 1137-1144 ◽  
Author(s):  
HANG BAE KIM
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Galactic Center ◽  
High Energy ◽  
Ultra High Energy ◽  
Arrival Direction ◽  
High Energy Cosmic Rays ◽  
Superheavy Dark Matter

We focus on the arrival direction distributions of the ultra-high energy cosmic rays (UHECR) in search of their possible origins. Models which associate the origin of UHECR with decays of relic superheavy dark matter particles (SHDM) predict the anisotropy of UHECR flux toward the Galactic center. We use the existing SUGAR data, which cover the Galactic center, to look for such a signal and limit the fraction of UHECR produced by this mechanism.

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 Diurnal Effect of Sub-GeV Dark Matter Boosted by Cosmic Rays

2021 ◽  
Vol 126 (9) ◽  
Author(s):  
Shao-Feng Ge ◽  
Jianglai Liu ◽  
Qiang Yuan ◽  
Ning Zhou
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Diurnal Effect

Constraining strong baryon–dark-matter interactions with primordial nucleosynthesis and cosmic rays

2002 ◽  
Vol 65 (12) ◽  
Author(s):  
Richard H. Cyburt ◽  
Brian D. Fields ◽  
Vasiliki Pavlidou ◽  
Benjamin Wandelt
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Primordial Nucleosynthesis

scholarly journals Antimatter cosmic rays from dark matter annihilation: First results from an N-body experiment

2008 ◽  
Vol 78 (10) ◽  
Author(s):  
J. Lavalle ◽  
E. Nezri ◽  
E. Athanassoula ◽  
F.-S. Ling ◽  
R. Teyssier
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Dark Matter Annihilation ◽  
First Results

UNDERGROUND LABORATORIES AND THEIR PHYSICS REACH

2012 ◽  
Vol 27 (08) ◽  
pp. 1230008
Author(s):  
E. COCCIA
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Nuclear Astrophysics ◽  
Astroparticle Physics ◽  
The World ◽  
Radioactive Background ◽  
Earth's Crust ◽  
Silence Condition ◽  
Rare Phenomena ◽  
Fundamental Forces

Underground laboratories, shielded by the Earth's crust from the particles that rain down on the surface in the form of cosmic rays, provide the low radioactive background environment necessary to host key experiments in the field of particle and astroparticle physics, nuclear astrophysics and other disciplines that can profit of their characteristics and of their infrastructures. The cosmic silence condition existing in these laboratories allows the search for extremely rare phenomena and the exploration of the highest energy scales that cannot be reached with accelerators. Major fundamental challenges are within the scope of these laboratories, notably, understanding the properties of neutrinos and dark matter, and exploring the unification of the fundamental forces of nature. I will review the physics reach and briefly describe the main underground facilities that are presently in operation around the world.

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