{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/global-analysis-of-charm-mixing-parameters","title":"Global analysis of charm mixing parameters and determination of the CKM angle $γ$","arxiv_id":"2409.06449","date":"2024-09-10","proceeding":null,"authors":["F. Betti","M. Bona","M. Ciuchini","D. Derkach","R. Di Palma","A. L. Kagan","V. Lubicz","G. Martinelli","M. Pierini","L. Silvestrini","C. Tarantino","V. Vagnoni"],"abstract":"We present an updated global analysis of beauty decays sensitive to the angle $\\gamma$ of the Cabibbo-Kobayashi-Maskawa matrix and of $D$-meson mixing data in the framework of approximate universality, in which CP violation in $D-\\overline{D}$ mixing is described in terms of two universal weak phases corresponding to dispersive and absorptive contributions. We extract the fundamental theoretical parameters determining absorptive and dispersive contributions to $D$ meson mixing and CP violation, together with the angle $\\gamma$. The results for the charm mixing parameters are $x_{12} \\simeq x = (0.401 \\pm 0.043)\\%$ and $y_{12} \\simeq y = (0.610 \\pm 0.017)\\%$, while the two CP-violating phases are given by $\\phi_2^M = (0.13 \\pm 0.70)^{\\circ}$ and ${\\phi}_2^{\\Gamma} = (2.1 \\pm 1.6)^{\\circ}$. The angle $\\gamma$ is found to be $\\gamma = (65.7 \\pm 2.5)^{\\circ}$, in excellent agreement with the indirect determination from the Unitarity Triangle analysis.","url_abs":"https://arxiv.org/abs/2409.06449v3","url_pdf":"https://arxiv.org/pdf/2409.06449v3.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"global-analysis-of-charm-mixing-parameters","repo_url":"https://github.com/silvest/gammaddbar","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}