English

Freeze-in self-interacting dark matter in warped extra dimension

High Energy Physics - Phenomenology 2021-08-17 v4

Abstract

A classically scale-invariant scalar singlet can be a MeV-scale dark matter, with a feeble Higgs portal coupling at O(1010)\mathcal{O}(10^{-10}). Besides, an O(0.1)\mathcal{O}(0.1) self-interaction coupling could further serve to alleviate the small-scale problems in the Universe. We show that, such a dark matter candidate can naturally arise in the warped extra dimension, with the huge span of parameter space predicted well within O(1)\mathcal{O}(1) fundamental parameters.

Keywords

Cite

@article{arxiv.2101.00618,
  title  = {Freeze-in self-interacting dark matter in warped extra dimension},
  author = {Shao-Ping Li and Xin Zhang},
  journal= {arXiv preprint arXiv:2101.00618},
  year   = {2021}
}

Comments

6 pages, 2 figures, v3:added explanations, matches version published in PLB