Stealth dark matter confinement transition and gravitational waves

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Brower, RC, Cushman, K, Fleming, GT, Gasbarro, A, Hasenfratz, A, Jin, XY, Kribs, GD, Neil, ET, Osborn, JC, Rebbi, C et al (show 4 more authors) (2021) Stealth dark matter confinement transition and gravitational waves. PHYSICAL REVIEW D, 103 (1). 014505-.

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Official URL: http://dx.doi.org/10.1103/PhysRevD.103.014505

Abstract

We use non-perturbative lattice calculations to investigate the finite-temperature confinement transition of stealth dark matter, focusing on the regime in which this early-universe transition is first order and would generate a stochastic background of gravitational waves. Stealth dark matter extends the standard model with a new strongly coupled SU(4) gauge sector with four massive fermions in the fundamental representation, producing a stable spin-0 'dark baryon' as a viable composite dark matter candidate. Future searches for stochastic gravitational waves will provide a new way to discover or constrain stealth dark matter, in addition to previously investigated direct-detection and collider experiments. As a first step to enabling this phenomenology, we determine how heavy the dark fermions need to be in order to produce a first-order stealth dark matter confinement transition.

Item Type:	Article
Additional Information:	Data release at doi.org/10.5281/zenodo.3921870
Uncontrolled Keywords:	hep-lat, hep-lat, hep-ph
Depositing User:	Symplectic Admin
Date Deposited:	18 Dec 2020 08:40
Last Modified:	18 Jan 2023 23:06
DOI:	10.1103/PhysRevD.103.014505
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3110704