Observation of the Λb0→J/ψΛϕ decay in proton-proton collisions at √s = 13 TeV; Physics Letters B; Vol. 802

Observation of the Λb0→J/ψΛϕ decay in proton-proton collisions at √s = 13 TeV; Physics Letters B; Vol. 802

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Parent link:Physics Letters B
Vol. 802.— 2020.— [135203, 23 p.]
Ente Autore: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Altri autori: Sirunyan А. М., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich
Riassunto: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.
Lingua:inglese
Pubblicazione: 2020
Soggetti:
электронный ресурс
труды учёных ТПУ
CMS
b physics
heavy-flavor spectroscopy
computing
Accesso online:https://doi.org/10.1016/j.physletb.2020.135203
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666205

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