2018/09/11 by Warintorn Sreethawong, Sreethawong, W., Wararat Treesukrat +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1809.03677
openalex publication_date 2018/09/11 · openalex created_date 2018/09/27 · openalex updated_date 2026/07/28
Massive neutrino is an evidence of new physics beyond the Standard Model. One of the well motivated new physics scenarios is a model with gauged lepton flavor symmetry. We investigate neutrino properties in the minimal SU(3)_ℓ×SU(3)E gauged lepton flavor model. In this model, three new species of fermions are introduced to cancel gauge anomalies. These new fermions lead to a see-saw mechanism for neutrino mass generation. We impose the constraints from perturbative unitarity in 2-2 scattering processes, as well as current experimental constraints, to obtain viable neutrino spectrum. We determine the lower bound, with the SU(3)_ℓ gauge coupling set to 1, on the lightest neutrino mass of 3.76×10-3 (18.9×10-3) eV for the normal (inverted) hierarchy.