2006/11/07 by William A. Ponce, Óscar Zapata, Oscar Zapata
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.74.093007
published as Phys.Rev.D74:093007,2006 · 7 pages, 2 figures, accepted for publication in Phys. Rev. D1
arxiv created 2006/11/07 · openalex publication_date 2006/11/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the neutrino masses and mixing pattern in a version of the SU(3)c\ensuremath\bigotimesSU(3)L\ensuremath\bigotimesU(1)X model with one extra exotic charged lepton per family as introduced by Ozer. It is shown that an extended scalar sector, together with a discrete Z2 symmetry, is able to reproduce a consistent lepton mass spectrum without a hierarchy in the Yukawa coupling constants, the former as a consequence of a carefull balance between one universal see-saw and two radiative mechanisms.