Title
Observation of the Λ<sub>b</sub> <sup>0</sup>→J/ψΛφ decay in proton-proton collisions at s=13TeV
Date Issued
10 March 2020
Access level
open access
Resource Type
Controlled Vocabulary for Resource Type Genres::texto::revista::artículo::artículo original
Author(s)
Tumasyan, A.
Mossolov, V.
Madlener, T.
Dragicevic, M.
Ambrogi, F.
Jeitler, M.
Skovpen, K.
Sirunyan, A. M.
Marchesini, I.
Chhibra, S. S.
Drugakov, V.
Frühwirth, R.
Van Mechelen, P.
Mikulec, I.
Lontkovskyi, D.
Liko, D.
Darwish, M. R.
Van Haevermaet, H.
Tavernier, S.
Python, Q.
D'Hondt, J.
Erö, J.
Krammer, N.
Moortgat, S.
DeWolf, E. A.
Van Remortel, N.
Janssen, X.
Escalantedelvalle, A.
Declercq, J.
Van Putte, S.
Schöfbeck, R.
Flechl, M.
Lowette, S.
Bols, E. S.
Blekman, F.
Zarucki, M.
Pieters, M.
Rad, N.
Waltenberger, W.
Spanring, M.
Bergauer, T.
Schieck, J.
Suarezgonzalez, J.
Wulz, C. E.
Rejebsfar, H.
Lelek, A.
Adam, W.
Krätschmer, I.
DiCroce, D.
A. Alikhanian Yerevan Institute of Physics
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Vrije Universiteit Brussel
A. Alikhanian Yerevan Institute of Physics
Vrije Universiteit Brussel
Vrije Universiteit Brussel
University of Antwerp
Austrian Academy of Sciences
University of Antwerp
Austrian Academy of Sciences
Vrije Universiteit Brussel
Austrian Academy of Sciences
University of Antwerp
University of Antwerp
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Austrian Academy of Sciences
Austrian Academy of Sciences
Vrije Universiteit Brussel
University of Antwerp
University of Antwerp
University of Antwerp
Austrian Academy of Sciences
Vrije Universiteit Brussel
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Austrian Academy of Sciences
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
Austrian Academy of Sciences
University of Antwerp
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
Abstract
<p>The observation of the Λ<sub>b</sub> <sup>0</sup>→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<sup>−1</sup>. The ratio of the branching fractions B(Λ<sub>b</sub> <sup>0</sup>→J/ψΛϕ)/B(Λ<sub>b</sub> <sup>0</sup>→ψ(2S)Λ) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10<sup>−2</sup>, 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.</p>
Volume
802
Number
135203
Language
English
Publication version
Version of Record
Scopus EID
2-s2.0-85078529004
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
0370-2693