Study of excited Λb0 states decaying to Λb0π+π− in proton-proton collisions at √s=13TeV / А. М. Sirunyan, A. R. Tumasyan, W. Adam [et al.]
Уровень набора: Physics Letters BЯзык: английский.Резюме или реферат: A study of excited Λb0 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 Λb0 states: Λb0(5912)0, Λb0(5920)0, Λb0(6146)0, and Λb0(6152)0 in the Λb0π+π− mass spectrum is confirmed, and their masses are measured. The Λb0π+π− mass distribution exhibits a broad excess of events in the region of 6040-6100 MeV, whose origin cannot be discerned with the present data..Примечания о наличии в документе библиографии/указателя: [References.: 39 tit.].Тематика: электронный ресурс | труды учёных ТПУ | CMS | physics | beauty baryon | heavy baryon | flavor spectroscopy | experimental results Ресурсы он-лайн:Щелкните здесь для доступа в онлайнНет реальных экземпляров для этой записи
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[References.: 39 tit.]
A study of excited Λb0 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 Λb0 states: Λb0(5912)0, Λb0(5920)0, Λb0(6146)0, and Λb0(6152)0 in the Λb0π+π− mass spectrum is confirmed, and their masses are measured. The Λb0π+π− mass distribution exhibits a broad excess of events in the region of 6040-6100 MeV, whose origin cannot be discerned with the present data.
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