Speaker
Description
We propose a novel model for lepton flavor and dark matter based on the SU(2)D gauge symmetry and vector-like leptons in its fundamental representations. We introduce a dark SU(2)D Higgs doublet and a Higgs bi-doublet for the mass mixing between the vector-like 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 vector-like 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.
