Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function
High Energy Physics - Phenomenology
2020-09-02 v2 Cosmology and Nongalactic Astrophysics
Abstract
A spatially uniform vector condensate can be formed during inflation if the vector boson is coupled to the inflaton through nontrivial kinetic function. The coherent oscillation of such a massive vector boson is a dark matter candidate. In this paper we consider the case where the vector boson energy density increases during inflation and show that the curvature/isocurvature perturbation gives stringent constraint on this scenario.
Keywords
Cite
@article{arxiv.2004.10036,
title = {Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function},
author = {Kazunori Nakayama},
journal= {arXiv preprint arXiv:2004.10036},
year = {2020}
}
Comments
26 pages, 3 figures; improved discussion