Simultaneous determination of CKM angle gamma and charm mixing parameters

Aaij, R, Abdelmotteleb, ASW, Beteta, C Abellan, Abudinen, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA
et al (show 999 more authors) (2021) Simultaneous determination of CKM angle gamma and charm mixing parameters. JOURNAL OF HIGH ENERGY PHYSICS, 12 (12). 141-.

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A combination of measurements sensitive to the $CP$ violation angle $\gamma$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscillations between $D^0$ and $\bar{D}^0$ mesons is performed. Results from the charm and beauty sectors, based on data collected with the LHCb detector at CERN's Large Hadron Collider, are combined for the first time. This method provides an improvement on the precision of the charm mixing parameter $y$ by a factor of two with respect to the current world average. The charm mixing parameters are determined to be $x = (0.400^{\,+0.052}_{\,-0.053})\%$ and $y = (0.630^{\,+0.033}_{\,-0.030})\%$. The angle $\gamma$ is found to be $\gamma = (65.4^{\,+3.8}_{\,-4.2})^\circ$ and is the most precise determination from a single experiment.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at (LHCb public pages)
Uncontrolled Keywords: B physics, Charm physics, CKM angle gamma, CP violation, Hadron-Hadron scattering (experiments)
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 17 Jan 2022 09:20
Last Modified: 18 Jan 2023 21:16
DOI: 10.1007/JHEP12(2021)141
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