Cosmology with a dynamically screened scalar interaction in the dark sector

Details Cosmology with a dynamically screened scalar interaction in the dark sector Cosmology with a dynamically screened scalar interaction in the dark sector

2004-07-12

arxiv.org/abs/hep-th/0407097v1

Phys.Rev. D70 (2004) 123511

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 3 figures

Scientific paper

10.1103/PhysRevD.70.123511

Motivated in part by string theory, we consider a modification of the LambdaCDM cosmological model in which the dark matter has a long-range scalar force screened by light particles. Scalar forces can have interesting effects on structure formation: the main example presented here is the expulsion of dark matter halos from low density regions, or voids, in the galaxy distribution.

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