| Preprint | |
| Report number | arXiv:2409.06449 |
| Title | Global analysis of charm mixing parameters and determination of the CKM angle $\gamma$ |
| Author(s) | Betti, F. (U. Edinburgh (main)) ; Bona, M. (Queen Mary, U. of London) ; Ciuchini, M. (INFN, Rome3) ; Derkach, D. (Higher Sch. of Economics, Moscow) ; Di Palma, R. (INFN, Rome3 ; Rome III U.) ; Kagan, A.L. (Cincinnati U.) ; Lubicz, V. (INFN, Rome3 ; Rome III U.) ; Martinelli, G. (INFN, Rome) ; Pierini, M. (CERN) ; Silvestrini, L. (INFN, Rome) ; Tarantino, C. (INFN, Rome3 ; Rome III U.) ; Vagnoni, V. (INFN, Bologna) |
| Imprint | 2024-09-10 |
| Number of pages | 21 |
| Note | v2 |
| Subject category | hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
| 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 for charm mixing. 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 $x_{12} \simeq x = (0.402 \pm 0.044)\%$ and $y_{12} \simeq y = (0.627 \pm 0.021)\%$, while the two CP-violating phases are given by $\varphi_2^M = (1.9 \pm 1.6)^{\circ}$ and $\varphi_2^{\Gamma} = (2.7 \pm 1.6)^{\circ}$. The angle $\gamma$ is found to be $\gamma = (66.0 \pm 2.5)^{\circ}$. |
| Other source | Inspire |
| Copyright/License | preprint: (License: CC0 1.0) |
Record created 2024-09-17, last modified 2024-12-20