The SM extensions with additional light scalar singlet, nonrenormalizable Yukawa interactions and (g-2)μ

We consider the SM extension with additional light real singlet scalar, right-handed neutrino and nonrenormalizable Yukawa interaction for the first two generations. We show that the proposed model can explain the observed (g - 2) muon anomaly. Phenomenological consequenses as flavour violating decays tau -> mu mu mu, mu mu e, mu ee are briefly discussed. We also propose the U-R(1) gauge generalization of the SM with complex scalar singlet and nonzero right-handed charges for the first two generations.