The muon g−2 in an SU(7) left-right symmetric model with mirror fermions

We have studied a left-right symmetric model with mirror fermions based on a grand unified SU(7) model in order to account for the muon anomaly. The Higgs sector of the model contains two Higgs doublets and the hierarchy condition υL≪υR can be achieved by using two additional Higgs singlets, one even and other odd under D-parity. We show that there is a wide range of values for the mass parameters of the model that is consistent with the g−2 lepton anomalies. Radiative correction to the mass of the ordinary fermions are considered to be small.