MSGUT : from Futility to Precision
arXiv:hep-ph/0410308
Abstract
We computed the complete gauge and chiral superheavy spectra and couplings in the Minimal Susy GUT and therefrom evaluated the dependence of 1-loop threshold corrections to the Weinberg angle and Unification scale as functions of the single complex parameter that controls MSGUT symmetry breaking. The corrections are generically within 10% showing that contrary to longstanding conjectures,{\it{high precision calculations are not futile but necessary and feasible in the SO(10) MSGUT.}} Effective superpotentials for violation and mass formulae of the MSSM matter supermultiplets including neutrino Type I and II seesaws were derived.
Talk given at 5th Rencontres de Vietnam, 4 pages, 2 figures, 1 photo