arXiv:hep-ph/0003007·v2·High Energy Physics — Phenomenology
From Prototype SU(5) to Realistic SU(7) SUSY GUT
J.L. Chkareuli (Tbilisi, Inst. Phys.)🇬🇪 · C.D. Froggatt (Glasgow U.)🇬🇧 · I.G. Gogoladze (Tbilisi, Inst. Phys. & ICTP, Trieste)🇬🇪 · A.B. Kobakhidze (Tbilisi, Inst. Phys. & Helsinki U.)🇬🇪
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.
Comments: 30 pages, latex, 2 postscript figures; slightly modified version (misprints corrected and references added) submitted to Nuclear Physics B