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

Journal article

A measurement of CP-violating observables associated with the interference of B0→ D0K⋆(892)0 and B0→D¯0K⋆8920 decay amplitudes is performed in the D0→ K∓π±(π+π−), D0→ π+π−(π+π−), and D0→ K+K− final 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 Bs0→D0K¯⋆8920 and Bs0→D¯0K¯⋆8920 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 rB0DK⋆ and δB0DK⋆ 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.

Authors: Aaij, R; Abdelmotteleb, ASW; Abellan Beteta, C; Abudinén, F; Ackernley, T

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer
• Journal: Journal of High Energy Physics
• Volume: 2024
• Issue: 5
• Article number: 25
• Publication date: 2024-05-03
• Acceptance date: 2024-04-08
• DOI: 10.1007/jhep05(2024)025
• EISSN: 1029-8479
• Language: English
• Keywords: CKM Angle Gamma; CP Violation; B Physics; Hadron-Hadron Scattering