Supersymmetric contribution to the quark-lepton universality violation in charged currents

Abstract

The supersymmetric one-loop contribution 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.

9 pages, LaTeX, 3 figures, uuencoded gziped .ps file, to be published

References in corpus (2)

• Novel Approach to Confront Electroweak Data and Theory
• Quenching of spin operators in the calculation of radiative corrections for nuclear beta decay

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