Cosmology with a dynamically screened scalar interaction in the dark sector
arXiv:hep-th/0407097 · doi:10.1103/PhysRevD.70.123511
Abstract
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.
26 pages, 3 figures