Multi-Messenger Theories of Gauge-Mediated Supersymmetry Breaking
arXiv:hep-ph/9609344 · doi:10.1016/S0370-2693(96)01513-4
Abstract
We study gauge-mediated theories containing several messengers with the most general SU(5)-invariant mass and supersymmetry-breaking parameters. We show that these theories are predictive, containing only two relevant parameters more than the minimal gauge-mediated model. Hypercharge D-terms can contribute significantly to the right-handed charged sleptons and bring them closer in mass to the left-handed sleptons. The messenger masses must be invariant under either SU(5) or a ``messenger parity" to avoid spontaneous breaking of charge conservation.
13 pages, 2 figures