Natural mu and Bmu in gauge mediation

Understand

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

• It relies on the logarithmic dependence of the effective Kahler potential on the messenger threshold superfield X.
• Thus, mu and Bmu naturally arise at one and two loops, respectively.
• Moreover B has the same phase as the gaugino mass and the supersymmetric CP problem is solved as well.