Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/8449
Title: Study of excited Lambda(0)(b) states decaying to Lambda(0)(b)pi(+)pi(-) in proton-proton collisions at root s=13TeV
Authors: Karapınar, Güler
CMS Collaboration
Keywords: CMS
Physics
Beauty baryon
Heavy baryon
Heavy flavor
Flavor spectroscopy
Experimental results
Issue Date: 2020
Publisher: Elsevier Ltd.
Abstract: 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.
URI: https://doi.org/10.1016/j.physletb.2020.135345
https://hdl.handle.net/11147/8449
ISSN: 0370-2693
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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