Recent CMS Results on B Hadron Decays with Charmonium

Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)（2022）

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摘要

Using a data sample corresponding to an integrated luminosity of 103.7 fb -1 of pp collisions, collected by the CMS experiment at √ = 13 TeV in 2017-2018, the B 0 → (2S)K 0 S +and B 0 s → (2S)K 0 S decays are observed for the first time.Measurements of their branching fractions, relative to the B 0 → (2S)K 0 S decay, are presented.

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