aCERN, Theory Division, CH-1211 Geneva 23, Switzerland
bInstitut de Théorie des Phénomènes Physiques, EPFL, CH-1015 Lausanne, Switzerland
cFPRD and Department of Physics, SNU, Seoul, South Korea
Abstract:
We propose a natural solution to the μ problem in gauge mediation. It relies on the logarithmic dependence of the effective Kähler potential on the messenger threshold superfield X. Thus, μ and Bμ 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.