Anomalies in $b\to s \ell\ell$ transitions and Global Fits

TL;DR

This paper reviews anomalies in $b o s \,\ell\ell$ transitions, updates global fits with recent measurements, and discusses advances in theoretical form factor calculations.

Contribution

It provides a comprehensive review of recent experimental anomalies and updates global fits, including new theoretical developments in form factor calculations.

Findings

Recent measurements impact global fit results

Anomalies persist in $b\to s \ell\ell$ transitions

Advances in form factor theory are discussed

Abstract

We review the status of the anomalies in $b\to s \ell\ell$ transitions, and comment on the impact of the most recent measurements in 2019 and 2020 on the global fits. We also discuss a few developments in the theory calculation of local and non-local form factors.