CMS results on beauty baryon spectroscopy
DOI:
https://doi.org/10.31349/SuplRevMexFis.3.0308023Keywords:
hadron spectroscopy, baryon spectroscopy, excited states, flavor physics, flavor spectroscopyAbstract
Recent beauty baryon physics results from the CMS collaboration, obtained using the proton-proton collision data collected at √ s = 13 TeV, are discussed. Observation of the Λ 0 b → J/ψΛφ decay and measurement of its branching fraction, relative to the Λ 0 b → ψ(2S)Λ decay, is reported. The excited baryon states Λb(5912)0 , Λb(5920)0 , Λb(6146)0 , and Λb(6152)0 are confirmed and their masses are measured. Observation of a new excited beauty strange baryon, labeled as Ξb(6100)∗−, is presented.
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