Seesaw mechanism in the R-parity-violating supersymmetric standard model with the gauged flavor U(1)Xsymmetry

Atsushi Hinata*

*この研究の対応する著者

研究成果: Article査読

抄録

We study the seesaw mechanism in the supersymmetric standard model (SSM) with the Z/3 symmetry called matter triality (M3). The Abelian discrete symmetry prohibits the baryon number violation operators at the (non-)renormalizable level, which ensures proton longevity. The cubic coupling by right-handed neutrinos generates the Majorana mass term after the right-handed sneutrinos develop into the vacuum expectation values. Due to the R-parity violation, the active neutrino masses can be generated not only from the mixings with the right-handed neutrinos but also from those with the minimal SSM neutralinos. We propose a model where M3 is embedded in the gauged flavor symmetry. The flavor charges are constrained by the anomaly cancellation conditions and the requirements to realize the fermion masses and mixing angles in the quark and lepton sectors. We analyze the assignments of the flavor charge, and show that the sterile neutrino mass is allowed to be below the soft supersymmetry-breaking scale, which is constrained by the half-lifetime of the neutrinoless double beta decay.

本文言語English
論文番号073B03
ジャーナルProgress of Theoretical and Experimental Physics
2022
7
DOI
出版ステータスPublished - 2022 7月 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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