Time-integrated CP asymmetries in meson and baryon decays

TL;DR

This paper reviews recent measurements of time-integrated CP asymmetries in meson and baryon decays from LHCb and Belle II, highlighting progress in understanding direct CP violation and its implications for the CKM matrix.

Contribution

It provides an overview of recent experimental results on CP asymmetries, including the first observation in baryons and new insights into D meson decays.

Findings

First observation of CP violation in baryon decays

Progress in measuring the CKM angle gamma

New studies of direct CP violation in D mesons

Abstract

Measurements of CP asymmetries in hadron decays integrated over time provide access to direct CP violation, which arises from differences between the amplitudes of CP-conjugate decay processes. These proceedings present an overview of recent measurements from the LHCb and Belle II experiments, including progress on the determination of the CKM angle $\gamma$, the first observation of CP violation in baryon decays, and new studies of direct CP violation in $D$ mesons. The outlook for measurements with datasets whose collection is underway is also discussed.