Observation of the Λb0→J/ψΛϕ decay in proton-proton collisions at √s = 13 TeV

Bibliographic Details
Parent link:	Physics Letters B Vol. 802.— 2020.— [135203, 23 p.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors:	Sirunyan А. М., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich
Summary:	Title screen Study of J/ψ meson production inside jets in pp collisions at √s =8TeVThe observation of the Λb0→J/ψΛϕ decay is reported using proton-proton collision data collected at √s = 13 TeVby the CMS experiment at the LHC in 2018, corresponding to an integrated luminosity of 60fb−1. The ratio of the branching fractions B(Λb0→J/ψΛϕ)/B(Λb0→ψ(2S)Λ) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10−2, where the first uncertainty is statistical, the second is systematic, and the last uncertainty reflects the uncertainties in the world-average branching fractions of ϕ and ψ(2S) decays to the reconstructed final states.
Published:	2020
Subjects:	электронный ресурс труды учёных ТПУ CMS b physics heavy-flavor spectroscopy computing
Online Access:	https://doi.org/10.1016/j.physletb.2020.135203
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666205

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