CP violation in charmless 2-body B meson decays at LHCb

Charmless 2-body B-meson decays can present large $C\!P$ asymmetries. The study of $C\!P$ violation in the decay $B^+ \rightarrow K^+ \pi^0$ can help to better understand the $K\pi$-puzzle. We report here the latest LHCb measurement of the direct $C\!P$ asymmetry, which is the most precise as for now. Observation of $C\!P$ violation in 2-body $B^0_{(s)}$-meson decays to charged pions and kaons can help constraining the CKM unitarity triangle. The study of these observables in LHCb, presented here, results in the first observation of time-dependent $C\!P$ asymmetry in a $B_s^0$-meson decay.