2000/07/13 by Carl H. Albright, Albright, Carl H., S. M. Barr +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0007145
11 pages including 4 figures, contribution to NEUTRINO 2000 and talk presented at SUSY2K
arxiv created 2000/07/13 · openalex publication_date 2000/07/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
A complete set of Higgs and matter superfields is introduced with well-defined SO(10) properties and U(1) × Z2 × Z2 family charges from which the Higgs and Yukawa superpotentials are constructed. The Higgs fields solve the doublet-triplet splitting problem, while the structures of the four Dirac fermion mass matrices obtained involve just six effective Yukawa operators. The right-handed Majorana matrix, MR, arises from one Higgs field coupling to several pairs of superheavy conjugate neutrino singlets. In terms of 10 input parameters to the mass matrices, the model accurately yields the 20 masses and mixings of the lightest quarks and leptons, as well as the masses of the 3 heavy right-handed neutrinos. The bimaximal atmospheric and solar neutrino vacuum solutions are favored in this simplest version with a moderate hierarchy in MR. The large mixing angle MSW solution is obtainable, on the other hand, with a considerably larger hierarchy in MR which is also necessary to obtain baryogenesis through the leptogenesis mechanism.