Determination of the CKM angle $\phi_3$ from a combination of Belle and Belle II results

Abstract We report a determination of the CKM angle $\phi_{3}$, also known as $\gamma$, from a combination of measurements using samples of up to 711~fb$^{-1}$ from the Belle experiment and up to 362~fb$^{-1}$ from the Belle II experiment. We combine results from analyses of $B^+\to DK^+, B^+\to D\pi^+$, and $B^+ \to D^{*}K^+$ decays, where $D$ is an admixture of $D^0$ and $\overline{D}{}^{0}$ mesons, in a likelihood fit to obtain $\phi_{3} = (78.6^{+7.2}_{-7.3})^{\circ}$. We also briefly discuss the interpretation of this result.
Tags
Working group B Hadronic
Principal authors @  Niharika Rout, Xiaodong Shi, Yateng Zhang
Reference JHEP 10, 143 (2024), DOI: 10.1007/JHEP10(2024)143
Document BELLE2-PUB-PH-2023-006
Links arXiv:2404.12817, Inspire, JHEP
Bibtex 
@article{Belle:2024knt,
    author = "Adachi, I. and others",
    collaboration = "Belle, Belle-II",
    title = "{Determination of the CKM angle {\ensuremath{\phi}}$_{3}$ from a combination of Belle and Belle II results}",
    eprint = "2404.12817",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    reportNumber = "Belle II Preprint 2023-015, KEK Preprint 2023-31",
    doi = "10.1007/JHEP10(2024)143",
    journal = "JHEP",
    volume = "10",
    pages = "143",
    year = "2024"
}