Supersymmetric Contributions To The Quark-Lepton Universality Violation In Charged Currents

Supersymmetric one-loop contributions to the quark-lepton universality violation in the low-energy charged current weak interactions is studied. It is shown that the recent experimental data with the 1 sigma deviation from the universality may be explained by the existence of the light sleptons (<220 GeV) and relatively light chargino and neutralinos (<600 GeV) with significant gaugino components. The sign of the universality violation is briefly discussed.