Time-dependent CP violation in $B^0_{(s)} \to h^+h^-$ decays

The direct and mixing-induced CP-violating asymmetries in $B^0 \to \pi^+ \pi^-$ and $B_s \to K^+ K^-$ decays have been measured using a sample of pp collisions collected by the LHCb experiment during the Run1 of the LHC and corresponding to an integrated luminosity of 3.0 fb$^{-1}$.The time-integrated CP asymmetries in $B^0 \to K^+ \pi^-$ and $B_s \to \pi^+ K^-$ decays have also been measured, using the same data sample.The measurements of the CP-violating asymmetries of the $B^0 \to \pi^+ \pi^-$, $B_s \to K^+\pi^-$ and $B_s \to \pi^+K^-$ decays are the most precise from a single experiment. The measurements of the CP-violating asymmetries of the Bs->KK decays are compatible with the previous results from LHCb.