Effects of gravitational confinement on bosonic asymmetric dark matter in stars
High Energy Physics - Phenomenology
2014-01-09 v2 Cosmology and Nongalactic Astrophysics
Abstract
Considering the existence of old neutron stars puts strong limits on the dark matter/nucleon cross section for bosonic asymmetric dark matter. Key to these bounds is formation of a Bose-Einstein condensate (BEC) of the asymmetric dark matter particles. We consider the effects of the host neutron star's gravitational field on the BEC transition. We find this substantially shifts the transition temperature and so strengthens the bounds on cross section. In particular, for the well-motivated mass range of ~5-15 GeV, we improve previous bounds by an order of magnitude.
Keywords
Cite
@article{arxiv.1304.3773,
title = {Effects of gravitational confinement on bosonic asymmetric dark matter in stars},
author = {Alan O. Jamison},
journal= {arXiv preprint arXiv:1304.3773},
year = {2014}
}
Comments
2 pages, typos fixed to match published version