doi: 10.1103/PhysRevLett.131.051803.
Test of Lepton Universality in b→sℓ^{+}ℓ^{-} Decays
R Aaij
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, A S W Abdelmotteleb
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, C Abellan Beteta
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, F Abudinén
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, T Ackernley
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, B Adeva
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, M Adinolfi
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, P Adlarson
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, H Afsharnia
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, C Agapopoulou
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, C A Aidala
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, Z Ajaltouni
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, S Akar
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, K Akiba
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, P Albicocco
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, J Albrecht
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, F Alessio
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, M Alexander
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, A Alfonso Albero
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, Z Aliouche
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, P Alvarez Cartelle
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, R Amalric
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, S Amato
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, J L Amey
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, Y Amhis
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, L Anderlini
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, M Andersson
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, M Andreotti
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, D Andreou
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, F Archilli
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, A Artamonov
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, M Artuso
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, E Aslanides
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, M Atzeni
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, B Audurier
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, I Bachiller Perea
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, S Bachmann
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, M Bachmayer
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, J J Back
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, A Bailly-Reyre
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, P Baladron Rodriguez
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, V Balagura
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, W Baldini
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, J Baptista de Souza Leite
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, M Barbetti
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, R J Barlow
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, S Barsuk
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, M Bartolini
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, F Baryshnikov
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, J M Basels
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, G Bassi
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, B Batsukh
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, A Battig
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, A Bay
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, A Beck
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, M Becker
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, I B Bediaga
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, A Beiter
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, S Belin
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, V Bellee
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, K Belous
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, I Belov
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, I Belyaev
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, G Benane
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, G Bencivenni
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, E Ben-Haim
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, A Berezhnoy
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, R Bernet
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, S Bernet Andres
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, D Berninghoff
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, H C Bernstein
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, A Bertolin
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, L Bian
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, S Bifani
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, P Billoir
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34
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36
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49
, D Zuliani
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, G Zunica
17
; LHCb Collaboration
Affiliations
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 3 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 6 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 7 Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with Institution School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom).
- 8 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 9 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 10 University of Michigan, Ann Arbor, Michigan, USA (associated with Institution Syracuse University, Syracuse, New York, USA).
- 11 University of Cincinnati, Cincinnati, Ohio, USA.
- 12 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 13 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 14 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 15 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 16 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 17 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 18 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 19 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 20 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 21 INFN Sezione di Firenze, Firenze, Italy.
- 22 Affiliated with an institute covered by a cooperation agreement with CERN.
- 23 INFN Sezione di Ferrara, Ferrara, Italy.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 University of Chinese Academy of Sciences, Beijing, China.
- 26 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 27 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 28 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 29 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 30 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 31 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 32 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 33 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 34 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 35 INFN Sezione di Pisa, Pisa, Italy.
- 36 Institute of High Energy Physics (IHEP), Beijing, China.
- 37 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with Institution ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 38 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 39 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 40 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 41 University of Birmingham, Birmingham, United Kingdom.
- 42 Imperial College London, London, United Kingdom.
- 43 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 44 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 45 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 46 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 47 School of Physics, University College Dublin, Dublin, Ireland.
- 48 INFN Sezione di Bari, Bari, Italy.
- 49 INFN Sezione di Bologna, Bologna, Italy.
- 50 INFN Sezione di Genova, Genova, Italy.
- 51 INFN Sezione di Milano, Milano, Italy.
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 INFN Sezione di Cagliari, Monserrato, Italy.
- 54 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 55 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 56 AGH - University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 57 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 58 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 59 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 60 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 61 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 62 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 65 University of Maryland, College Park, Maryland, USA.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Institution Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 69 Physics and Micro Electronic College, Hunan University, Changsha City, China (associated with Institution Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China).
- 70 Guangdong Provincial Key Laboratory of Nuclear Science, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 71 Lanzhou University, Lanzhou, China (associated with Institution Institute Of High Energy Physics (IHEP), Beijing, China).
- 72 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with Institution LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 73 Universität Bonn - Helmholtz-Institut für Strahlen und Kernphysik, Bonn, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 74 Eotvos Lorand University, Budapest, Hungary (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 75 INFN Sezione di Perugia, Perugia, Italy (associated with Institution INFN Sezione di Ferrara, Ferrara, Italy).
- 76 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 77 Universiteit Maastricht, Maastricht, Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 78 Tadeusz Kosciuszko Cracow University of Technology, Cracow, Poland (associated with Institution Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37595222
- DOI: 10.1103/PhysRevLett.131.051803
Item in Clipboard
Test of Lepton Universality in b→sℓ^{+}ℓ^{-} Decays
R Aaij et al.
Phys Rev Lett.
.
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doi: 10.1103/PhysRevLett.131.051803.
Authors
R Aaij
1
, A S W Abdelmotteleb
2
, C Abellan Beteta
3
, F Abudinén
2
, T Ackernley
4
, B Adeva
5
, M Adinolfi
6
, P Adlarson
7
, H Afsharnia
8
, C Agapopoulou
9
, C A Aidala
10
, Z Ajaltouni
8
, S Akar
11
, K Akiba
1
, P Albicocco
12
, J Albrecht
13
, F Alessio
14
, M Alexander
15
, A Alfonso Albero
16
, Z Aliouche
17
, P Alvarez Cartelle
18
, R Amalric
9
, S Amato
19
, J L Amey
6
, Y Amhis
20
14
, L An
14
, L Anderlini
21
, M Andersson
3
, A Andreianov
22
, M Andreotti
23
, D Andreou
24
, D Ao
25
, F Archilli
26
, A Artamonov
22
, M Artuso
24
, E Aslanides
27
, M Atzeni
3
, B Audurier
28
, I Bachiller Perea
29
, S Bachmann
30
, M Bachmayer
31
, J J Back
2
, A Bailly-Reyre
9
, P Baladron Rodriguez
5
, V Balagura
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, W Baldini
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, J Baptista de Souza Leite
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, M Barbetti
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, R J Barlow
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, S Barsuk
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, W Barter
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, M Bartolini
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, F Baryshnikov
22
, J M Basels
34
, G Bassi
35
, B Batsukh
36
, A Battig
13
, A Bay
31
, A Beck
2
, M Becker
13
, F Bedeschi
35
, I B Bediaga
32
, A Beiter
24
, S Belin
5
, V Bellee
3
, K Belous
22
, I Belov
22
, I Belyaev
22
, G Benane
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, G Bencivenni
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, E Ben-Haim
9
, A Berezhnoy
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3
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37
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, H C Bernstein
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3
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14
, Ia Bezshyiko
3
, J Bhom
39
, L Bian
40
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13
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23
, S Bifani
41
, P Billoir
9
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1
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42
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36
25
, S Zucchelli
49
, D Zuliani
38
, G Zunica
17
; LHCb Collaboration
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 3 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 6 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 7 Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with Institution School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom).
- 8 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 9 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 10 University of Michigan, Ann Arbor, Michigan, USA (associated with Institution Syracuse University, Syracuse, New York, USA).
- 11 University of Cincinnati, Cincinnati, Ohio, USA.
- 12 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 13 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 14 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 15 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 16 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 17 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 18 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 19 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 20 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 21 INFN Sezione di Firenze, Firenze, Italy.
- 22 Affiliated with an institute covered by a cooperation agreement with CERN.
- 23 INFN Sezione di Ferrara, Ferrara, Italy.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 University of Chinese Academy of Sciences, Beijing, China.
- 26 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 27 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 28 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 29 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 30 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 31 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 32 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 33 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 34 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 35 INFN Sezione di Pisa, Pisa, Italy.
- 36 Institute of High Energy Physics (IHEP), Beijing, China.
- 37 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with Institution ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 38 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 39 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 40 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 41 University of Birmingham, Birmingham, United Kingdom.
- 42 Imperial College London, London, United Kingdom.
- 43 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 44 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 45 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 46 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 47 School of Physics, University College Dublin, Dublin, Ireland.
- 48 INFN Sezione di Bari, Bari, Italy.
- 49 INFN Sezione di Bologna, Bologna, Italy.
- 50 INFN Sezione di Genova, Genova, Italy.
- 51 INFN Sezione di Milano, Milano, Italy.
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 INFN Sezione di Cagliari, Monserrato, Italy.
- 54 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 55 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 56 AGH - University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 57 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 58 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 59 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 60 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 61 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 62 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 65 University of Maryland, College Park, Maryland, USA.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Institution Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 69 Physics and Micro Electronic College, Hunan University, Changsha City, China (associated with Institution Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China).
- 70 Guangdong Provincial Key Laboratory of Nuclear Science, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 71 Lanzhou University, Lanzhou, China (associated with Institution Institute Of High Energy Physics (IHEP), Beijing, China).
- 72 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with Institution LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 73 Universität Bonn - Helmholtz-Institut für Strahlen und Kernphysik, Bonn, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 74 Eotvos Lorand University, Budapest, Hungary (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 75 INFN Sezione di Perugia, Perugia, Italy (associated with Institution INFN Sezione di Ferrara, Ferrara, Italy).
- 76 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 77 Universiteit Maastricht, Maastricht, Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 78 Tadeusz Kosciuszko Cracow University of Technology, Cracow, Poland (associated with Institution Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37595222
- DOI: 10.1103/PhysRevLett.131.051803
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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.