English

Charged Q-ball Dark Matter from $B$ and $L$ direction

High Energy Physics - Phenomenology 2016-08-31 v1

Abstract

We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of α1137\alpha^{-1}\simeq137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1)+O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 10910^9 years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.

Keywords

Cite

@article{arxiv.1604.04352,
  title  = {Charged Q-ball Dark Matter from $B$ and $L$ direction},
  author = {Jeong-Pyong Hong and Masahiro Kawasaki and Masaki Yamada},
  journal= {arXiv preprint arXiv:1604.04352},
  year   = {2016}
}

Comments

16 pages, 2 figures