1993/03/10 by Alon E. Faraggi, Edi Halyo · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-th
paper · pdf · doi:10.1016/0370-2693(93)90226-8
published as Phys.Lett.B307:311-317,1993 · SSCL--Preprint--193
arxiv created 1993/03/10 · openalex publication_date 1993/06/01 · arxiv updated 2011/02/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a new scenario in a class of superstring derived standard--like models that explains the suppression of the left--handed neutrino masses. Due to nonrenormalizable terms and the breaking of the U(1)Z^′ symmetry a generalized see--saw mechanism takes place. Contrary to the traditional see--saw mechanism in GUTs, the see--saw scale and the right--handed neutrino mass scale are suppressed relative to the U(1)Z^′ breaking scale.