Status of new physics in CP violation and rare B decays

TL;DR

This paper reviews recent progress in searching for new physics through CP violation and rare B decays, focusing on CKM paradigm tests, $b o s \, \ell\ell$ observables, hadronic uncertainties, and lepton flavor universality violations.

Contribution

It provides an updated overview of the status of new physics searches in CP violation and rare B decays, emphasizing hadronic uncertainties and recent experimental developments.

Findings

Current constraints on new physics from $b\to s \ell\ell$ observables.

Insights into hadronic uncertainties affecting $b\to s \mu\mu$ measurements.

Discussion on the impact of charm contributions on rare decay analyses.

Abstract

We briefly report on some particular aspects of new physics searches concerning, on the one side, the CKM paradigm and, on the other, the global fit to rare $b\to s \ell\ell$ observables including lepton flavour universality ones. We put special emphasis on the state-of-the-art of hadronic uncertainties of $b\to s\mu\mu$ observables and LFUV in SM and in presence of New Physics. Finally, we discuss the latest experimental and theoretical developments concerning long-distance charm contributions.