Accidentally Asymmetric Dark Matter

Asadi, Pouya, Kramer, Eric David, Kuflik, Eric, Ridgway, Gregory W, Slatyer, Tracy R and Smirnov, Juri ORCID: 0000-0002-3082-0929 (2021) Accidentally Asymmetric Dark Matter PHYSICAL REVIEW LETTERS, 127 (21). 211101-. ISSN 0031-9007, 1079-7114

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Abstract

We study the effect of a first-order phase transition in a confining SU(N) dark sector with heavy dark quarks. The baryons of this sector are the dark matter candidates. During the confinement phase transition the heavy quarks are trapped inside isolated, contracting pockets of the deconfined phase, giving rise to a second stage of annihilation that dramatically suppresses the dark quark abundance. The surviving abundance is determined by the local accidental asymmetry in each pocket. The correct dark matter abundance is obtained for O(1-100)  PeV dark quarks, above the usual unitarity bound.

Item Type:	Article
Uncontrolled Keywords:	5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Divisions:	Faculty of Science & Engineering Faculty of Science & Engineering > School of Physical Sciences Faculty of Science & Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	26 Nov 2025 10:39
Last Modified:	16 Jun 2026 19:54
DOI:	10.1103/PhysRevLett.127.211101
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3195646
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