R-Invariant Unification with Dynamical Higgs Multiplets

Abstract

We construct R-invariant grand unification models with composite Higgs multiplets. Higgs doublets are massless due to the R symmetry, which is not spontaneously broken at the unification scale, while Higgs triplets get large masses from a dynamically generated superpotential, which is allowed by an R anomaly.

Comments: 7 pages, latex, a footnote added