Generating lepton masses and mixings with a heavy vector doublet

TL;DR

This paper proposes two extensions of the Standard Model incorporating a heavy vector doublet and scalar fields, successfully reproducing fermion masses and mixings, and predicts observable charged lepton flavor violation.

Contribution

It introduces novel SM extensions with a heavy vector doublet and scalar singlets that explain fermion masses and mixings, including neutrino masses via a radiative seesaw mechanism.

Findings

Models are consistent with current fermion mass spectrum.

Predict charged lepton flavor violation within experimental reach.

Neutrino masses generated at one-loop level.

Abstract

We construct two viable extensions of the SM with a heavy vector in the fundamental $SU\left( 2\right) _{L}$ representation and nine SM singlet scalar fields, consistent with the current SM fermion mass spectrum and fermionic mixing parameters. The small masses for the active neutrinos are generated from radiative seesaw mechanism at one loop level mediated by the neutral components of the heavy vector as well as by the left handed Majorana neutrinos. The proposed models predicts rates for charged lepton flavor violating processes within the reach of the forthcoming experiments.