☆ 4.7 Article

A general effective field theory description of b → sl+l- lepton universality ratios

PHYSICS LETTERS B (2022)

On the significance of new physics in b → sl+l- decays

Gino Isidori et al.

Summary: The study evaluates the global significance of the new physics hypothesis in b -> sl(+)l(-) decays, incorporating the look-elsewhere effect for the first time. The trial-factor is estimated with pseudo-experiments, showing it can be as large as seven. The global significance is calculated to be 4.3 standard deviations by considering the most general description of a non-standard b -> sl(+)l(-) amplitude of short-distance origin and treating theoretical uncertainties in a highly conservative manner.

PHYSICS LETTERS B (2021)

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Article Astronomy & Astrophysics

Lessons from the B0,+ → K*0,+ μ+μ- angular analyses

Marco Ciuchini et al.

Summary: The study reveals the need for sizable hadronic contributions and correlations among them in the context of recent measurements on B0, B+ -> K*(0,)(+) mu(+)mu(-) decays. By extending the analysis to b -> sl(+)l(-) data, it was found that the fully left-handed operator scenario stands out as the simplest with a significance of almost 6 sigma.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics