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.
Primary authors
Sam Rowley
(University of Southampton)
Steve King
(University of Southampton)
Huchan Lee
(University of Southampton)
Antonio Carcamo Hernandez
(Santa Maria University)
