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Title
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Study of excited states decaying to in proton-proton collisions at √s=13TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| A study of excited Lambda(0)(b) baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb(-1). The existence of four excited Lambda(0)(b) states: Lambda(0)(b) (5912)(0), Lambda(0)(b) (5920)(0), Lambda(0)(b) (6146)(0), and Lambda(0)(b) (6152)(0) in the Lambda(0)(b)pi(+)pi(-) mass spectrum is confirmed, and their masses are measured. The Lambda(0)(b)pi(+)pi(-) mass distribution exhibits a broad excess of events in the region of 6040-6100 MeV, whose origin cannot be discerned with the present data. (C) 2020 The Author(s). Published by Elsevier B.V. |
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Language
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English
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Source (journal)
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Physics letters : B. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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North-Holland
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2020
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ISSN
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0370-2693
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DOI
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10.1016/J.PHYSLETB.2020.135345
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Volume/pages
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803
(2020)
, 22 p.
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Article Reference
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135345
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ISI
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000521730300061
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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