Lattice simulations of the strange quark mass and Fritzsch texture

A number of numerical simulations of lattice gauge theory have indicated a low mass of strange quark in 100 MeV range at the scale of μ=2 GeV. In the unquenched case, which is improved over the simulation in the quenched approximation by the inclusion of u and d sea quark effects, one sees a further downward trend. Here the fermion mass spectrum of the Fritzsch texture is recalculated. In a single step supersymmetric GUT with MX∼1016 GeV such values of the strange quark mass can be obtained for low values of tanβ. Experimental numbers mpolet=173±6 GeV and 4.1