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

K. Hagiwara·S. Matsumoto·Y. Yamada
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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-$σ$ 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.

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K. Hagiwara, S. Matsumoto, Y. Yamada. 1995-10-03. Supersymmetric contribution to the quark-lepton universality violation in charged currents. https://doi.org/10.1103/physrevlett.75.3605

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