On the standard model predictions for RK and RK∗

Bordone, Marzia (Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland) ; Isidori, Gino (Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland) ; Pattori, Andrea (Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland) (Dipartimento di Fisica e Astronomia “G. Galilei”, Università di Padova, Via Marzolo 8, 35131, Padua, Italy)

08 August 2016

Abstract: We evaluate the impact of radiative corrections in the ratios Γ[B→Mμ+μ-]/Γ[B→Me+e-] when the meson M is a K or a K∗ . Employing the cuts on mℓℓ2 and the reconstructed B -meson mass presently applied by the LHCb Collaboration, such corrections do not exceed a few  % . Moreover, their effect is well described (and corrected for) by existing Monte Carlo codes. Our analysis reinforces the interest of these observables as clean probe of physics beyond the Standard Model.

Published in: EPJC 76 (2016) 440
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-016-4274-7
License: CC-BY-3.0

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