Test of Lepton Universality in b→sℓ^{+}ℓ^{-} Decays.

Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F ORCID: 0000-0002-6737-3528, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P ORCID: 0000-0001-6280-3851, Afsharnia, H, Agapopoulou, C
et al (show 1056 more authors) (2023) Test of Lepton Universality in b→sℓ^{+}ℓ^{-} Decays. Physical review letters, 131 (5). 051803-.

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The first simultaneous test of muon-electron universality using B^{+}→K^{+}ℓ^{+}ℓ^{-} and B^{0}→K^{*0}ℓ^{+}ℓ^{-} 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  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.

Item Type: Article
Uncontrolled Keywords: LHCb Collaboration
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 18 Sep 2023 07:58
Last Modified: 18 Sep 2023 07:58
DOI: 10.1103/physrevlett.131.051803
Open Access URL: https://journals.aps.org/prl/pdf/10.1103/PhysRevLe...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3172824