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.
014505-014505.
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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-ph |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 02 Jul 2020 09:43 |
| Last Modified: | 21 May 2023 22:39 |
| DOI: | 10.1103/PhysRevD.103.014505 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3092510 |
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