Observation of the Λ b 0 → J / ψ Λ ϕ decay in proton-proton collisions at √ s = 13 TeV
Name
1-s2.0-S0370269320300071-main.pdf
Description
Published version
Size
767.65 KB
Format
Unknown
Checksum (MD5)
edfd6be4064d04fe8b7f3a6eb41b73f3
Author(s)
The CMS Collaboration
Abercrombie, Daniel Robert
Allen, Branden
Baty, Austin Alan
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
D'Alfonso, Mariarosaria
Gomez-Ceballos, Guillelmo
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2020.135203
