A hidden solution to the mu/B_mu problem in gauge mediation

Understand

We propose a solution to the mu/B_mu problem in gauge mediation.

• The novel feature of our solution is that it uses dynamics of the hidden sector, which is often present in models with dynamical supersymmetry breaking.
• We give an explicit example model of gauge mediation where a very simple messenger sector generates both mu and B_mu at one loop.
• The usual problem, that B_mu is then too large, is solved by strong renormalization effects from the hidden sector which suppress B_mu relative to mu.