Abelian D-terms and the superpartner spectrum of anomaly-mediated supersymmetry breaking
Abstract
We address the tachyonic slepton problem of anomaly mediated supersymmetry breaking using abelian D-terms. We demonstrate that the most general extra U(1) symmetry that does not disrupt gauge coupling unification has a large set of possible charges that solves the problem. It is shown that previous studies in this direction that added both an extra hypercharge D-term and another D-term induced by B-L symmetry (or similar) can be mapped into a single D-term of the general ancillary U(1)_a. The U(1)_a formalism enables manifest proofs of the sign of squark mass corrections and the absolute upper bound of the entire superpartner spectrum given knowledge of just one superpartner mass.Keywords
All Related Versions
This publication has 0 references indexed in Scilit: