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)

Science Park 105
University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Department of Physics and Astronomy
Uppsala University
Clermont-Auvergne University
Sorbonne Université
University of Michigan, Ann Arbor
University of Cincinnati
LNF-INFN
Fakultät Physik
University of Dortmund
European Organization for Nuclear Research
SUPA
University of Glasgow
University of Barcelona
Department of Physics and Astronomy
University of Manchester
University of Cambridge
Instituto de Biofisica da UFRJ
Université Paris-Saclay
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
Syracuse University
University of Chinese Academy of Sciences
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Aix-Marseille Université
Ip Paris
Laboratoire de Physique des Particules
University of Heidelberg
Institute of Physics
ENAC-IIC-GEL
Centro Brasileiro de Pesquisas Fisicas

Research output: Contribution to journal › Article › peer-review

190 Citations (Scopus)

Abstract

The first simultaneous test of muon-electron universality using B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. 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 q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.

Original language	English
Article number	051803
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.131.051803

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@article{2a694e1433dc4de39ddf24d9f753889d,

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

abstract = "The first simultaneous test of muon-electron universality using B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. 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 q2 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 \{Baptista De Souza Leite\}, J. and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

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

year = "2023",

month = aug,

day = "4",

doi = "10.1103/PhysRevLett.131.051803",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

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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 - Baptista De Souza Leite, J.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2023/8/4

Y1 - 2023/8/4

N2 - The first simultaneous test of muon-electron universality using B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. 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 q2 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 B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. 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 q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.

U2 - 10.1103/PhysRevLett.131.051803

DO - 10.1103/PhysRevLett.131.051803

M3 - Article

C2 - 37595222

AN - SCOPUS:85168336384

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 051803

ER -

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

Abstract

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