Naturalness from runaways in direct mediation

Understand

Postulating that the NMSSM singlet is a meson of a microscopic confining theory opens up new model-building possibilities.

• Based on this, we construct calculable models of direct mediation that solve the mu/Bmu problem and simultaneously lead to realistic phenomenology.
• The singlet that couples to the Higgs fields develops a runaway produced by soft interactions, then stabilized by a small superpotential perturbation.
• The mechanism is first realized in an O'Raifeartaigh model of direct gauge mediation with metastable supersymmetry breaking.