2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191710We 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.10 pagesHigh Energy Physics - Phenomenologytext