Measurement of the CKM angle $\gamma$ from a combination of LHCb results

A combination of measurements sensitive to the CKM angle $\gamma$ from LHCb is performed. The inputs are from analyses of time-integrated $B^{+}\rightarrow DK^+$,$B^{0} \rightarrow D K^{*0}$,$B^{0} \rightarrow D K^+ \pi^-$and$B^{+} \rightarrow D K^+\pi^+\pi^-$ tree-level decays. In addition, results from a time-dependent analysis of $B_s^0\to D_s^{\mp }{K}^{\pm }$ decays are included. The combination yields $\gamma =(72.2_{-7.3}^{+6.8}{)}^{\circ }$, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be $\gamma \in [55.9,85.2{]}^{\circ }$. A second combination is investigated, also including measurements from $B^{+} \rightarrow D \pi^+$and$B^{+} \rightarrow D \pi^+\pi^-\pi^+$ decays, which yields compatible results.