Implications of $b\to s\mu\mu$ anomalies for future measurements of $B \to K^{(*)} \nu \bar \nu$ and $K\to \pi \nu \bar \nu$ - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Phys.Lett.B Année : 2020

Implications of $b\to s\mu\mu$ anomalies for future measurements of $B \to K^{(*)} \nu \bar \nu$ and $K\to \pi \nu \bar \nu$

Résumé

We investigate the consequences of deviations from the Standard Model observed in b→sμμ transitions for flavour-changing neutral-current processes involving down-type quarks and neutrinos. We derive the relevant Wilson coefficients within an effective field theory approach respecting the SM gauge symmetry, including right-handed currents, a flavour structure based on approximate U(2) symmetry, and assuming only SM-like light neutrinos. We discuss correlations among B→K(⁎)νν¯ and K→πνν¯ branching ratios in the case of linear Minimal Flavour Violation and in a more general framework, highlighting in each case the role played by various New Physics scenarios proposed to explain b→sμμ deviations.

Dates et versions

hal-02628062 , version 1 (26-05-2020)

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Sébastien Descotes-Genon, Svjetlana Fajfer, Jernej F. Kamenik, Martín Novoa-Brunet. Implications of $b\to s\mu\mu$ anomalies for future measurements of $B \to K^{(*)} \nu \bar \nu$ and $K\to \pi \nu \bar \nu$. Phys.Lett.B, 2020, 809, pp.135769. ⟨10.1016/j.physletb.2020.135769⟩. ⟨hal-02628062⟩
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