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

S.N Gninenko,N.V Krasnikov

doi:10.1051/epjconf/201612502001

S.N Gninenko, N.V Krasnikov

Open Access

https://doi.org/10.1051/epjconf/201612502001

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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 \rightarrow \mu\mu\mu, \mu \mu e, \mu e e $ 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.

Highlights

IntroductionThe discovery of the neutrino oscillations [1, 2] means that at least two neutrino have nonzero masses
The discovery of the neutrino oscillations [1, 2] means that at least two neutrino have nonzero masses.The minimal extension of the Standard Model (SM) with nonzero neutrino masses is the νMSM [3, 4]
In this report which is based mainly on Refs.[6] we consider the extension of the νMSM with additional scalar field and nonrenormalizable Yukawa interaction for the first two generations

Summary

Introduction

The discovery of the neutrino oscillations [1, 2] means that at least two neutrino have nonzero masses. The minimal extension of the SM with nonzero neutrino masses is the νMSM [3, 4] In this model one adds to the SM three additional massive Majorana(right-handed) fermions νRi, i = 1, 2, 3. In this report which is based mainly on Refs.[6] we consider the extension of the νMSM with additional scalar field and nonrenormalizable Yukawa interaction for the first two generations. We consider the extension of the νMSM with additional scalar field and nonrenormalizable Yukawa interaction for the first two generations [6]. The interaction (2) can be realized in renormalizable extension of the SM with additional scalar field φ and new massive quark S U(2)L singlet fields DR, DL with a mass

The interaction of new quark fields

Mφ mμ

For the opposite limit mμ mφ

Conclusion