Speaker
Sam Rowley
(University of Southampton)
Description
We consider a simple renormalisable and gauge-invariant model in which a massive new Z′ boson has couplings only to the electron and muon and their associated neutrinos, arising from mixing with a heavy vector-like fourth family of leptons. Within this model, we discuss the contributions to the electron and muon anomalous magnetic moments from Z′ exchange, subject to the constraints from μ→eγ and neutrino trident production. Using analytic and numerical arguments, we find that such a Z′ model can account for either the electron or the muon g−2 anomalies while remaining consistent with the experimental constraints from μ→eγ and neutrino trident production, but not both simultaneously.
Authors
Sam Rowley
(University of Southampton)
Steve King
(University of Southampton)
Huchan Lee
(University of Southampton)
Antonio Carcamo Hernandez
(Santa Maria University)
