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Observation of the ?b 0?J/??? decay in proton-proton collisions at s=13TeV

Abstract: The observation of the ?b 0?J/??? decay is reported using proton-proton collision data collected at s=13TeV by the CMS experiment at the LHC in 2018, corresponding to an integrated luminosity of 60fb-1. The ratio of the branching fractions B(?b 0?J/???)/B(?b 0??(2S)?) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10-2, where the first uncertainty is statistical, the second is systematic, and the last uncertainty reflects the uncertainties in the world-average branching fractions of ? and ?(2S) decays to the reconstructed final states.

 Fuente: Physics Letters B 802 (2020) 135203

 Editorial: Elsevier

 Fecha de publicación: 01/03/2020

 Nº de páginas: 23

 Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2020.135203

 ISSN: 0370-2693,1873-2445

 Url de la publicación: https://doi.org/10.1016/j.physletb.2020.135203