We investigate supersymmetric models in which an anomalous $U(1)_{ X}$ symmetry explains the Yukawa hierarchy, and the related $D_{ X}$-term plays a role in supersymmetry breaking. We use a bottom-up approach to model building. Phenomenological viability leads to a scenario with degenerate squark and slepton spectra and with heavy gauginos. Features of a K\"ahler potential that allows for such a scenario are described.
Categories: hep-ph