New LEP constraints on some supersymmetric Yukawa interactions that violate R-parity

  title={New LEP constraints on some supersymmetric Yukawa interactions that violate R-parity},
  author={Gautam Bhattacharyya and John Ellis and K. Sridhar},
  journal={arXiv: High Energy Physics - Phenomenology},
We consider one-loop corrections to partial widths of the $Z$ induced by supersymmetric Yukawa interactions that violate $R$-parity. The precise experimental values of the leptonic $Z$ partial widths bound these Yukawa couplings, with the most interesting constraints being those on couplings involving the $\tau$, since previous constraints on them were very mild. 
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