Lepton-flavour violating Z0 decays in a minimal SUSY standard model with explicitly broken R-parity via L-violation

We study the lepton-flavour violating Z 0 decays in a minimal supersymmetric standard model with explicitly broken R-parity via L-violation. These rare decays arise as a single loop effect mediated by scalar fermions and are found to be dominated by top quark in the loop. We obtain a combined fit to...

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Bibliographic Details
Published in:Physics letters. B 1998, Vol.417 (1), p.87-91
Main Authors: Anwar Mughal, M, Sadiq, M, Ahmed, K
Format: Article
Language:English
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Summary:We study the lepton-flavour violating Z 0 decays in a minimal supersymmetric standard model with explicitly broken R-parity via L-violation. These rare decays arise as a single loop effect mediated by scalar fermions and are found to be dominated by top quark in the loop. We obtain a combined fit to the available limits on the decays Z 0→l a l ̄ b(a≠b; a, b= e, μ, τ) which imposes certain limits on the products of couplings arising from the LQ d c operator of the superpotential.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(97)01369-5