Abstract
We consider extensions of the Standard Model by a hidden sector consisting of a gauge field coupled with a scalar field. In the absence of dimensionful parameters in the tree-level potential, radiative symmetry breaking will induce the electroweak scale of the Standard Model and generate mass for the hidden sector gauge field. We consider both U(1)D and SU(2)D dark sector gauge groups and focus on probing the models with a combination of direct detection experiments and gravitational wave observatories. We find that recent dark matter direct detection results significantly constrain the parameter space of the models where they can account for the observed dark matter relic density via freeze-out. The gravitational wave signals originating from strongly first-order electroweak phase transition in these models can be probed in future gravitational wave observatories such as the Laser Interferometer Space Antenna. We show how the projected results complement direct detection experiments and can help probe parameter space near the neutrino floor of direct detection.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 015033 |
| Tidsskrift | Physical Review D |
| Vol/bind | 108 |
| Udgave nummer | 1 |
| Antal sider | 14 |
| ISSN | 2470-0010 |
| DOI | |
| Status | Udgivet - 1. jul. 2023 |
Bibliografisk note
Funding Information:The financial support from Academy of Finland, Project No. 342777, is gratefully acknowledged. M. T. F. and M. R. acknowledge partial funding from The Independent Research Fund Denmark, Grants No. DFF 6108-00623 and No. DFF 1056-00027B, respectively. M. E. T. acknowledges funding from Augustinus Fonden, Application No. 22-19584, to cover part of the expenses associated with visiting the University of Helsinki for half a year. We thank Marek Lewicki for pointing out an improved calculation procedure for GW signals in Coleman-Weinberg-like theories.
Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.