Vector Coherent Oscillation Dark Matter
arXiv:1907.06243 · doi:10.1088/1475-7516/2019/10/019
Abstract
We construct a model of hidden massive vector boson dark matter as a homogeneous coherent oscillation in the entire universe without any dangerous instability. We make use of a particular form of the vector boson coupling to a scalar field through the gauge kinetic function. This scenario may be distinguished from other dark matter models through the observation of statistical anisotropy in the dark matter isocurvature perturbation.
24 pages, 2 figures; added comments