R^2 dark matter



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Ruiz Cembranos, José Alberto (2011) R^2 dark matter. Journal of physics: Conference series, 315 (1). ISSN 1742-6588

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Official URL: http://dx.doi.org/10.1088/1742-6596/315/1/012004


There is a non-trivial four-derivative extension of the gravitational spectrum that is free of ghosts and phenomenologically viable. It is the so called R^2-gravity since it is defined by the only addition of a term proportional to the square of the scalar curvature. Just the presence of this term does not improve the ultraviolet behaviour of Einstein gravity but introduces one additional scalar degree of freedom that can account for the dark matter of our Universe.

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© 2011 IOP Publishing Ltd.
International Workshop on the Dark Side of the Universe (6º. 2010. Guanajuato, México). I am grateful to K. Olive, M. Peloso, and M. Voloshin for useful discussions. DOE grant DOE/DE-FG02-94ER40823, FPA 2005-02327 project (DGICYT, Spain), CAM/UCM 910309 project, and MICINN Consolider-Ingenio MULTIDARK CSD2009-00064.

Uncontrolled Keywords:Cosmological models; General-relativity; Field-theory; Gravity; Consequences; Inflation; Geometry; Relics
Subjects:Sciences > Physics
ID Code:35933
Deposited On:25 Feb 2016 16:13
Last Modified:25 Feb 2016 16:13

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