Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T08: Flavour Physics and CP Violation
Recent CMS results on B hadron decays with charmonium
A. Tulupov* and S. Polikarpov
Full text: Not available
Abstract
Using a data sample corresponding to an integrated luminosity of $103.7~\mathrm{fb}^{-1}$ of pp collisions, collected by the CMS experiment at $\sqrt{s}=13~\mathrm{TeV}$ in $2017$$-$$2018$, the $\mathrm{B}^0\to\psi\mathrm{(2S)}\mathrm{K}^0_{\mathrm S}\pi^+\pi^-$ and $\mathrm{B}^0_{\rm s}\to\psi\mathrm{(2S)}\mathrm{K}^0_{\mathrm S}$ decays are observed for the first time. Measurements of their branching fractions, relative to the $\mathrm{B}^0\to\psi\mathrm{(2S)}\mathrm{K}^0_{\mathrm S}$ decay, are presented.
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