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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 |
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: | Rectorate / Rektörlük WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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