CP violation measurements in b hadrons at LHCb

Abstract

In the present document a selected sample of the latest results on CP violation by the LHCb collaboration are presented. These include the first measurement of ${\varphi }_s^{c\overline{c}s}=0.119\pm 0.107\pm 0.034$ rad in a final state dominated by a tensor resonance, the most precise measurements of $C_{{\pi }^{+}{\pi }^{-}}$ and $S_{{\pi }^{+}{\pi }^{-}}$ to date, the first values ever measured of $C_{K^{+}{K}^{-}}$, $S_{K^{+}{K}^{-}}$ and $A_{K^{+}{K}^{-}}^{\Delta \Gamma }$, the latest constraints on $\gamma =(76.8_{-5.7}^{+5.1}{)}^{\circ }$ from the combination of several LHCb results and the first evidence for CP violation in baryonic mater at the level of 3.3$\sigma$. All results show a good agreement with the SM expectations.

Talk presented at the APS Division of Particles and Fields Meeting (DPF 2017), July 31-August 4, 2017, Fermilab. C170731