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Dark Unification: a UV-complete Theory of Asymmetric Dark Matter

Murgui, Clara and Zurek, Kathryn M. (2021) Dark Unification: a UV-complete Theory of Asymmetric Dark Matter. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20220113-234602504

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Abstract

Motivated by the observed ratio of dark matter to baryon mass densities, ρ_D/ρ_B ≃ 5, we propose a theory of dark-color unification. In this theory, the dark to visible baryon masses are fixed by the ratio of dark to visible confinement scales, which are determined to be nearby in mass through the unification of the dark and visible gauge theories at a high scale. Together with a mechanism for darko-baryo-genesis, which arises naturally from the grand unification sector, the mass densities of the two sectors must be nearby, explaining the observed mass density of dark matter. We focus on the simplest possible example of such a theory, where Standard Model color SU(3)_C is unified with dark color SU(2)_D into SU(5) at an intermediate scale of around 10⁸−10⁹ GeV. The dark baryon consists of two dark quarks in an isotriplet configuration. There are a range of important cosmological, astrophysical and collider signatures to explore, including dark matter self-interactions, early matter domination from the dark hadrons, gravitational wave signatures from the hidden sector phase transition, contributions to flavor observables, as well as Hidden Valley-like signatures at colliders.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/2112.08374arXivDiscussion Paper
ORCID:
AuthorORCID
Murgui, Clara0000-0002-7087-4796
Zurek, Kathryn M.0000-0002-2629-337X
Additional Information:We thank Andrea Mitridate, Michele Papucci and Mario Reig for discussions, as well as Pavel Fileviez-Perez and Mark B. Wise for comments on the draft. The work of KZ is supported by the DoE under contract DE-SC0011632, and by a Simons Investigator award. This work is also supported by the Walter Burke Institute for Theoretical Physics.
Group:Walter Burke Institute for Theoretical Physics
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011632
Simons FoundationUNSPECIFIED
Walter Burke Institute for Theoretical Physics, CaltechUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
CALT-TH2021-044
Record Number:CaltechAUTHORS:20220113-234602504
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220113-234602504
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112904
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:14 Jan 2022 19:26
Last Modified:14 Jan 2022 19:26

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