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research article

Test of Lepton Universality in b→sℓ+ℓ− Decays

LHCb Collaboration
•
Aaij, R.
•
Abdelmotteleb, A. S. W.
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2023
Physical Review Letters

The first simultaneous test of muon-electron universality using $B^{+}\rightarrow K^{+}\ell^{+}\ell^{-}$ and $B^{0}\rightarrow K^{*0}\ell^{+}\ell^{-}$ decays is performed, in two ranges of the dilepton invariant-mass squared, $q^{2}$. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$. Each of the four lepton universality measurements reported is either the first in the given $q^{2}$ interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model. All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-046.html (LHCb public pages)

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Type
research article
DOI
10.1103/PhysRevLett.131.051803
Author(s)
LHCb Collaboration
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Afsharnia, H.
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Corporate authors
LHCb Collaboration
Date Issued

2023

Published in
Physical Review Letters
Volume

131

Issue

5

Article Number

051803

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
December 21, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/193478
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