SU (2)D lepton portals for the muon g-2, W -boson mass, and dark matter

초록

We propose a novel model for lepton flavor and dark matter based on the SU(2)D gauge symmetry and vectorlike leptons in its fundamental representations. We introduce a dark SU(2)D Higgs doublet and a Higgs bidoublet for the mass mixing between the vectorlike lepton and the lepton. As a result, the seesaw lepton masses are generated and there are sizable one-loop contributions to the muon g-2 via the SU(2)D gauge bosons and the relatively heavy vectorlike lepton, as indicated in Fermilab E989. The tree-level mass mixing between the Z boson and the isospin-neutral gauge boson of SU(2)D in our model accounts for the shift in the W boson mass, being consistent with Tevatron CDFII. Finally, we show that the isospin charged gauge boson of SU(2)D becomes a plausible candidate for dark matter with a small mass splitting tied up to the modified W boson mass, and there is a viable parameter space where the favored corrections to the muon g-2 and the W boson mass and the dark matter constraints are simultaneously fulfilled. © 2022 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.