News on B→K(∗)ννˉB\to K^{(*)}ν\barν in the Standard Model and beyond

preprint2014arXivOpen access

Abstract

An analysis of the rare B decays B→K(∗)ννˉB\to K^{(*)}ν\barν is presented both within the SM and beyond. The SM predictions for the branching ratios are updated and uncertainties reduced. For the NP analysis both a model independent approach is used and concrete NP models are studied. The relations between b→sννˉb\to sν\barν and b→sℓ+ℓ−b\to s\ell^+\ell^- transitions are analysed in detail.

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