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arXiv · 2208.10880

Probing CP violation in exclusive $b \to s \nu \bar \nu$ transitions

Sébastien Descotes-Genon·Svjetlana Fajfer·Jernej F. Kamenik·Martín Novoa-Brunet
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Abstract

We consider the time-dependent analysis of rare $B_d$ and $B_s$ decays mediated by $b\to s \nu \bar \nu$ transitions. The inclusion of time evolution allows us to construct novel observables with specific sensitivity to CP-odd phases in these processes. The sensitivity to CP violation of corresponding time-integrated measurements in presence of flavor-tagging is also explored. We provide precise predictions for these observables in the SM and explore their sensitivity to new CP-violating NP contributions at present and planned future $B$-physics experiments. As such, these observables provide unique probes of CP violation in $b \to s \nu \bar \nu$ transitions.

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Sébastien Descotes-Genon, Svjetlana Fajfer, Jernej F. Kamenik, Martín Novoa-Brunet. 2022-08-23. Probing CP violation in exclusive $b \to s \nu \bar \nu$ transitions. https://doi.org/10.1103/physrevd.107.013005

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