The SM extensions with additional light scalar singlet, nonrenormalizable Yukawa interactions and $(g-2{)}_{\mu }$

Abstract

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 consequences as flavour violating decays $\tau \to \mu \mu \mu ,\mu \mu e,\mu ee$ 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.

Based on the talk given by N.V.Krasnikov at the SNP PSD RAS conference, Dubna 12-15 April 2016, 10 pages

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