Dark Matter from R^2-gravity

Details Dark Matter from R^2-gravity Dark Matter from R^2-gravity

2008-09-10

arxiv.org/abs/0809.1653v1

Phys.Rev.Lett.102:141301,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.102.141301

The modification of Einstein gravity at high energies is mandatory from a quantum approach. In this work, we point out that this modification will necessarily introduce new degrees of freedom. We analyze the possibility that these new gravitational states can provide the main contribution to the non-baryonic dark matter of the Universe. Unfortunately, the right ultraviolet completion of gravity is still unresolved. For this reason, we will illustrate this idea with the simplest high energy modification of the Einstein-Hilbert action: R^2-gravity.

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