Study of CP-violation in $B^0_{(s)}\to D K^{*}(892)^0$ decays with $D\to K\pi (\pi\pi)$, $\pi\pi(\pi\pi)$, and $KK$ final states

Journal of High Energy Physics. 2024. Vol. 2024. Article 25.

Aaij R., Abdelmotteleb A. S., Abellan Beteta C., Abudinén F., Ackernley T., Adeva B., Adinolfi M., V. Bocharnikov, A. Boldyrev, M. Hushchyn, F. Ratnikov, A. Ryzhikov

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− 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¯⋆(892)0 and Bs0→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 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.

 

Keywords: машинное обучение, CP violation, новая физика, глубокое обучение, B physics, CKM angle gamma, Hadron-Hadron Scattering, анализ данных и искусственный интеллект

Publication based on the results of: Neuromorphic optimization of complex experimental setups at dynamically changing quality metrics and boundary conditions (2024)