Gravity-mediated (or composite) Dark Matter confronts astrophysical data
نویسندگان
چکیده
منابع مشابه
Gravity-mediated (or composite) dark matter
Dark matter could have an electroweak origin, yet it could communicate with the visible sector exclusively through gravitational interactions. In a setup addressing the hierarchy problem, we propose a new dark-matter scenario where gravitational mediators, arising from the compactification of extra dimensions, are responsible for dark-matter interactions and its relic abundance in the Universe....
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Astrophysicists have long been telling us that the universe is mostly made up of dark matter. Modern analyses, which take into account the subtleties of large scale structure formation, big bang nucleosynthesis, and observations of how galaxies rotate, have largely condensed to one common conclusion: most of the dark matter is probably stable weakly interacting massive particles (WIMPs) [1]. Wh...
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Recently, the static spherically symmetric solution of the gravitational field equations have been found in theories describing massive graviton with spontaneous breaking of the Lorentz invariance [1]. These solutions, which show off two integration constants instead of one in General Relativity, are discussed. They are candidates for modified black holes provided they are stable against small ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2014
ISSN: 1029-8479
DOI: 10.1007/jhep05(2014)063