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

LHCb Collaboration

doi:10.1103/PhysRevLett.131.051803

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

LHCb Collaboration

Research output: Indexed journal article › Article › peer-review

186 Citations (Scopus)

Abstract

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.

Original language	English
Article number	051803
Pages (from-to)	51803
Number of pages	13
Journal	Physical Review Letters
Volume	131
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.131.051803
Publication status	Published - 4 Aug 2023

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10.1103/PhysRevLett.131.051803Licence: CC BY

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@article{78ae49d107f14a4d93cf5c49afa83128,

title = "Test of Lepton Universality in b→sℓ\textasciicircum{}\{+\}ℓ\textasciicircum{}\{-\} Decays",

abstract = "The first simultaneous test of muon-electron universality using B\textasciicircum{}\{+\}→K\textasciicircum{}\{+\}ℓ\textasciicircum{}\{+\}ℓ\textasciicircum{}\{-\} and B\textasciicircum{}\{0\}→K\textasciicircum{}\{*0\}ℓ\textasciicircum{}\{+\}ℓ\textasciicircum{}\{-\} decays is performed, in two ranges of the dilepton invariant-mass squared, q\textasciicircum{}\{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\textasciicircum{}\{-1\}. Each of the four lepton universality measurements reported is either the first in the given q\textasciicircum{}\{2\} interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.",

author = "\{LHCb Collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-Reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Calvo Gomez\}, M. and E. Golobardes and \{Valls Canudas\}, N. and X. Vilasis-Cardona",

note = "Publisher Copyright: {\textcopyright} 2023 CERN.",

year = "2023",

month = aug,

day = "4",

doi = "10.1103/PhysRevLett.131.051803",

language = "English",

volume = "131",

pages = "51803",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Test of Lepton Universality in b→sℓ^{+}ℓ^{-} Decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-Reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Calvo Gomez, M.

AU - Golobardes, E.

AU - Valls Canudas, N.

AU - Vilasis-Cardona, X.

PY - 2023/8/4

Y1 - 2023/8/4

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85168336384

UR - https://hdl.handle.net/20.500.14342/6521

U2 - 10.1103/PhysRevLett.131.051803

DO - 10.1103/PhysRevLett.131.051803

M3 - Article

C2 - 37595222

AN - SCOPUS:85168336384

SN - 0031-9007

VL - 131

SP - 51803

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 051803

ER -

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

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