Measurement of the CKM angle γ from a combination of LHCb results

A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B⁺ → DK⁺, B⁰ → DK^∗0, B⁰ → DK⁺π⁻ and B⁺ → DK⁺π⁺π⁻ tree-level decays. In addition, results from a time-dependent analysis of B_s ⁰ → D_s ^∓K^± decays are included. The combination yields γ = (72. 2_{− 7.3} ^{+ 6.8})°, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be γ ∈ [55.9, 85.2]°. A second combination is investigated, also including measurements from B⁺ → Dπ⁺ and B⁺ → Dπ⁺π⁻π⁺ decays, which yields compatible results.[Figure not available: see fulltext.]