Muon g − 2 in U(1)μ−τ symmetric gauged radiative neutrino mass model

Abstract

We explore muon anomalous magnetic moment (muon g−2) in a scotogenic neutrino model with a gauged lepton number symmetry U(1)μ−τ. In this model, a dominant muon g−2 contribution comes not from an additional gauge sector but from a Yukawa sector. In our numerical Δχ2 analysis, we show that our model is in favor of normal hierarchy with some features. We demonstrate one benchmark point, satisfying muon g−2 at the best fit value 25.1×10−10.