CMS results on beauty baryon spectroscopy | Zendy

S. Polikarpov | Zendy

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CMS results on beauty baryon spectroscopy

Author(s) -

S. Polikarpov

Publication year - 2022

Publication title -

suplemento de la revista mexicana de física

Language(s) - English

Resource type - Journals

ISSN - 2683-2585

DOI - 10.31349/suplrevmexfis.3.0308023

Subject(s) - baryon , physics , excited state , beauty , spectroscopy , particle physics , nuclear physics , branching fraction , proton , quantum mechanics , philosophy , epistemology

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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