Let us assume that the Kahler potential includes a term of the form X M p l H u H d times some dimensionless coefficient, which is naturally of order one, and where M pl is Planck mass. Then as supersymmetry breaks, F X gets a non-zero vacuum expectation value ⟨ F X ⟩ and the following effective term is added to the superpotential: ⟨ ⟨ F X ⟩ ⟩ M p l H u H d , which gives a measured μ μ = ⟨ ⟨ F X ⟩ ⟩ M p l . On the other hand, soft supersymmetry breaking terms are similarly created and also have a natural scale of ⟨ ⟨ F X ⟩ ⟩ M p l .