Study of excited Λb0 states decaying to Λb0π+π− in proton-proton collisions at √s=13TeV; Physics Letters B; Vol. 803

Study of excited Λb0 states decaying to Λb0π+π− in proton-proton collisions at √s=13TeV

Bibliographische Detailangaben
Parent link:Physics Letters B
Vol. 803.— 2020.— [135345, 22 p.]
Körperschaft: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Weitere Verfasser: Sirunyan А. М., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich
Zusammenfassung:Title screen
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.
Sprache:Englisch
Veröffentlicht: 2020
Schlagworte:
электронный ресурс
труды учёных ТПУ
CMS
physics
beauty baryon
heavy baryon
flavor spectroscopy
experimental results
Online-Zugang:https://doi.org/10.1016/j.physletb.2020.135345
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666366

Ähnliche Einträge

Ähnliche Einträge