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Large enhancement of D -> e nu and Ds -> e nu in R Parity violating SUSY models

A. G. Akeroyd·S. Recksiegel
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Abstract

The purely leptonic decays D -> e nu and Ds -> e nu, for which no experimental limits exist, are highly suppressed in the Standard Model. Mere observation of these decays at the B factories BELLE/BaBar or forthcoming CLEO-c would be a clear signal of physics beyond the SM. We show that R parity violating slepton contributions can give rise to spectacular enhancements of the decay rates, resulting in branching ratios as large as 5 x 10^-3, which strongly motivates a search in these channels.

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A. G. Akeroyd, S. Recksiegel. 2002-10-28. Large enhancement of D -> e nu and Ds -> e nu in R Parity violating SUSY models. https://doi.org/10.1016/s0370-2693(02)03293-8

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