$CP$ violation in heavy-flavour hadrons

TL;DR

This paper reviews recent experimental results on $CP$ violation in heavy-flavour hadrons, focusing on $B$ and $B_s^0$ mesons and charm systems, to test the Standard Model and search for New Physics at the LHC.

Contribution

It provides an overview of new measurements of $CP$-violating observables in heavy-flavour hadrons, emphasizing the latest results from the LHC and their implications for particle physics.

Findings

Precise measurements of angles $eta$ and $\gamma$ in $B$ decays.

Observation of $CP$-violation involving $B_s^0$ mesons, especially $\phi_s$.

Searches for $CP$-violation in charm and baryon decays at the LHC.

Abstract

Measurements of $CP$-violating observables in $B$ meson decays can be used to determine the angles of the Unitarity Triangle and hence probe for manifestations of New Physics beyond the Cabibbo-Kobayashi-Maskawa Standard Model paradigm. Of particular interest are precise measurements of the angles $\gamma$ and $\beta$. Also of great importance are studies of $CP$-violation involving $B_s^0$ mesons, in particular the phase $\phi_s$, which is a golden observable in flavour physics at the LHC. Complementary to these studies is the continuing search for direct and indirect $CP$-violation in the charm system, where the experimental precision is now at the $10^{-3}$ level. I will present new and recent results in these topics, and in $CP$-violation searches in baryon decays, with specific emphasis on the measurement programme at the LHC.