Neutrino predictions from a left-right symmetric flavored extension of the standard model

• Published in: The journal of high energy physics Vol. 2019; no. 2; pp. 1 - 24
• Main Authors: Cárcamo Hernández, A. E., Kovalenko, Sergey, Valle, José W. F., Vaquera-Araujo, C. A.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2019; Springer Nature B.V; SpringerOpen
• Subjects: Beta decay; Beyond Standard Model; Charging; Classical and Quantum Gravitation; Discrete Symmetries; Electroweak model; Elementary Particles; Fermions; High energy physics; Neutrino Physics; Neutrinos; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quark Masses and SM Parameters; Quarks; Regular Article - Theoretical Physics; Relativity Theory; String Theory; Symmetry; Discrete Symmetries; Quark Masses and SM Parameters; Neutrino Physics; Beyond Standard Model
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP02(2019)065

A bstract We propose a left-right symmetric electroweak extension of the Standard Model based on the Δ (27) family symmetry. The masses of all electrically charged Standard Model fermions lighter than the top quark are induced by a Universal Seesaw mechanism mediated by exotic fermions. The top quark is the only Standard Model fermion to get mass directly from a tree level renormalizable Yukawa interaction, while neutrinos are unique in that they get calculable radiative masses through a low-scale seesaw mechanism. The scheme has generalized μ − τ symmetry and leads to a restricted range of neutrino oscillations parameters, with a nonzero neutrinoless double beta decay amplitude lying at the upper ranges generically associated to normal and inverted neutrino mass ordering.