Self-Interacting Dark Matter with Naturally Light Mediator
High Energy Physics - Phenomenology
2017-02-22 v3 Cosmology and Nongalactic Astrophysics
Abstract
A promising proposal for resolving the cusp-core anomaly in the density profile of dwarf galaxies is to allow dark matter to interact with itself through a light mediator of mass much less than a GeV. The theoretical challenge is to have a complete renormalizable theory where this happens naturally even though dark matter itself may be of the electroweak scale, i.e. 100 GeV to 1 TeV. I propose here such a model, with just two neutral complex scalar singlets under a softly broken dark global U(1) symmetry.
Keywords
Cite
@article{arxiv.1608.08277,
title = {Self-Interacting Dark Matter with Naturally Light Mediator},
author = {Ernest Ma},
journal= {arXiv preprint arXiv:1608.08277},
year = {2017}
}
Comments
11 pages, 5 figures (discussion added)