Fayet-Iliopoulos D-terms, neutrino masses and anomaly mediated supersymmetry breaking

Abstract

We explore, in the context of the MSSM generalised to admit massive neutrinos, an extension of the Anomaly Mediated Supersymmetry Breaking solution for the soft scalar masses to incorporate Fayet-Iliopoulos D-terms. The slepton mass problem characteristic of the scenario is resolved, and the fermion mass hierarchy is explained via the Froggatt-Nielsen mechanism. FCNC problems are evaded by a combination of universal doublet charges and Yukawa textures which are diagonalised by transforming the left-handed fields only.

Comments: 13 pages, TeX, Uses Harvmac (big). Improved R-parity discussion (v2). Redundant singlet excised (v3). Figure added and minor corrections, added references (v4)