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Observation of the Λ b 0 → J / ψ Λ ϕ decay in proton-proton collisions at √ s = 13 TeV
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Observation of the Λ b 0 → J / ψ Λ ϕ decay in proton-proton collisions at √ s = 13 TeV
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1-s2.0-S0370269320300071-main.pdf
Description
Published version
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767.65 KB
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sword-2020-11-20T14:47:08.original.xml (130 B)
Original SWORD entry document
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Date Issued
2020
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Version
Final published version
Abstract
© 2020 The Author The observation of the Λb0→J/ψΛϕ decay is reported using proton-proton collision data collected at s=13TeV by 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.
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Terms of Use
Creative Commons Attribution 4.0 International license
https://creativecommons.org/licenses/by/4.0/
Persistent DSpace Link
https://hdl.handle.net/1721.1/133674
DOI of Published Version
10.1016/J.PHYSLETB.2020.135203
