Minimal SO(10) Unification
High Energy Physics - Phenomenology
2014-11-17 v2
Abstract
It is shown that the doublet-triplet splitting problem can be solved in SO(10) using the Dimopoulos-Wilczek mechanism with a very economical Higgs content and simple structure. Only one adjoint Higgs field is required, together with spinor and vector fields. The successful SUSY GUT prediction of gauge coupling unification is preserved. Higgsino-mediated proton decay can be suppressed below (but not far below) present limits without fine-tuning.
Cite
@article{arxiv.hep-ph/9705366,
title = {Minimal SO(10) Unification},
author = {S. M. Barr and S. Raby},
journal= {arXiv preprint arXiv:hep-ph/9705366},
year = {2014}
}
Comments
11 pages, LaTeX. Discussion at end of section 3 of stability of gauge hierarchy and higher-dimension operators has been substantially revised and extended. Minor modification of model, with certain coefficients replaced by VEVs of singlet fields. N.B. Changed author list