A recent combination of measurements performed by the LHCb collaboration determined that γ=(63.8+3.5-3.7)^∘. The fit combined the results of γ and charm measurements, which resulted in precision improvements for the strong-phase difference between D⁰ → K⁻π⁺ and D⁰ → K⁺π⁻ decays, δKπD, and the D⁰-D̄⁰ mixing parameter, y. In addition, new LHCb measurements of the CKM angle γ using B⁰ → D K*0 and B⁻ → D* K⁻ decays with the D→ KS⁰ h⁺ h⁻ final state (where h=π,K) are presented.
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Innes Mackay (2024) studied this question.
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