Precise determination of the $$B_{\mathrm{s}}^0$$–$$\overline B_{\mathrm{s}}^0$$ oscillation frequency

Journal article

I review the status of the Standard-Model prediction of the width difference $\Delta$$\Gamma$$_s$ among the two $B$$_s$ meson eigenstates. Ongoing effort addresses three-loop QCD corrections, corresponding to the next-to-next-to-leading order of QCD. With an improved theoretical precision of the ratio $\Delta$$\Gamma$$_s$/$\Delta$$M$$_s$, where $\Delta$$M$$_s$ denotes the mass difference in the $B$$_s$-$\bar{B}$s system, one can probe new physics in $\Delta$$M$$_s$ without sensitivity to |$V$$_{cb}$|, whose value is currently controversial

Authors: Aaij, R; Beteta, CA; Ackernley, T; Adeva, B; Adinolfi, M

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Nature Research
• Journal: Nature Physics
• Volume: 18
• Issue: 1
• Pages: 1-5
• Publication date: 2022-01-06
• DOI: 10.1038/s41567-021-01394-x
• EISSN: 1745-2481
• ISSN: 1745-2473
• Language: English
• Keywords: Algorithm; Computer science; Physics