The process e+e-->mu+mu- has been studied by SND detector at VEPP-2M e+e-
collider in the phi(1020)-resonance energy region. The measured effective phi
meson leptonic branching ratio:
B(phi->l+l-)=sqrt{B(phi->e+e-)*B(phi->mu+mu-)}=(2.89+-0.10+-0.06)*10^{-4}
agrees well with the PDG value B(phi->e+e-)=(2.91+-0.07)*10^{-4} confirming
mu-e universality. Without additional assumption of mu-e universality the
branching ratio B(phi->mu+mu-)=(2.87+-0.20+-0.14)*10^{-4} was obtained.Comment: RevTeX, 5 pages, 3 figures. To be published in Phys. Rev. Let
