Strongly Coupled Gauge Mediation

A model of gauge mediation with m3/2 O(1) eV is considered to motivate 100TeV col-liders. Massive mediators with standard-model and supersymmetry-breaking gauge quantum numbers let low-scale dynamics induce sizable soft masses of the standard-model superpart-ners. We circumvent potential phenomenological difficulties that such low-scale models tend to cause. Light gravitino of mass 10 eV is very interesting, since it does not have any astrophysical and cosmological problems. 1) Furthermore, it brings an intriguing pos-sibility of the axion dark matter 2) back into our attention. This leads us to construct an explicit model of gauge mediation 3) with the gravitino mass m3/2 O(1) eV.∗