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Study of CP violation in B0 → DK⋆ (892)0 decays with D → Kπ(ππ), ππ(ππ), and KK fnal states

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A measurement of CP-violating observables associated with the interference of B0 → D0K⋆ (892)0 and B0 → D¯ 0K⋆ (892)0 decay amplitudes is performed in the D0 → K∓π ±(π +π −), D0 → π +π −(π +π −), and D0 → K+K− fnal states using data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb−1 . CP-violating observables related to the interference of B0 s → D0K¯ ⋆ (892)0 and B0 s → D¯ 0K¯ ⋆ (892)0 are also measured, but no evidence for interference is found. The B0 observables are used to constrain the parameter space of the CKM angle γ and the hadronic parameters r DK⋆ B0 and δ DK⋆ B0 with inputs from other measurements. In a combined analysis, these measurements allow for four solutions in the parameter space, only one of which is consistent with the world average.

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Journal of High Energy Physics, 2024, vol. 2024, num.25

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Study of CP violation in B0 → DK⋆ (892)0 decays with D → Kπ(ππ), ππ(ππ), and KK fnal states