Plasma Constraints on the Millicharged Dark Matter
Cosmology and Nongalactic Astrophysics
2026-02-03 v1
Abstract
Dark matter particles were suggested to have an electric charge smaller than the elementary charge unit . The behavior of such a medium is similar to a collisionless plasma. In this paper, we set new stringent constraints on the charge and mass of the millicharged dark matter particle based on observational data on the Bullet X-ray Cluster.
Cite
@article{arxiv.2406.15750,
title = {Plasma Constraints on the Millicharged Dark Matter},
author = {Mikhail V. Medvedev and Abraham Loeb},
journal= {arXiv preprint arXiv:2406.15750},
year = {2026}
}
Comments
(6 pages, 1 figure)