From Prototype SU(5) to Realistic SU(7) SUSY GUT
arXiv:hep-ph/0003007 · doi:10.1016/S0550-3213(00)00660-X
Abstract
We construct a realistic SU(7) model which provides answers to many questions presently facing the prototype SU(5) SUSY GUT. Among them are a solution to the doublet-triplet splitting problem, string scale unification, proton decay, the hierarchy of baryon vs lepton number violation and neutrino masses.
30 pages, latex, 2 postscript figures; slightly modified version (misprints corrected and references added) submitted to Nuclear Physics B