Deconstruction, G_2 Holonomy, and Doublet-Triplet Splitting
arXiv:hep-ph/0201018
Abstract
We describe a mechanism for using discrete symmetries to solve the doublet-triplet splitting problem of four-dimensional supersymmetric GUT's. We present two versions of the mechanism, one via ``deconstruction,'' and one in terms of M-theory compactification to four dimensions on a manifold of G_2 holonomy.
21 pp, additional references