doi: 10.1103/PhysRevLett.124.211802.
Search for the Rare Decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-}
R Aaij
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, C Abellán Beteta
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, T Ackernley
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, B Adeva
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, M Adinolfi
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, H Afsharnia
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, C A Aidala
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, S Aiola
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, Z Ajaltouni
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, S Akar
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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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, G Alkhazov
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, P Alvarez Cartelle
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, A A Alves
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, S Amato
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, Y Amhis
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, L An
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, L Anderlini
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, G Andreassi
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, M Andreotti
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, F Archilli
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, A Artamonov
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, M Artuso
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, K Arzymatov
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, E Aslanides
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, M Atzeni
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, B Audurier
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, S Bachmann
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, J J Back
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, F Baryshnikov
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, J M Basels
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, V Batozskaya
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, A Bay
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, V Bellee
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, K Belous
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, G Bencivenni
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, S Benson
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, R Bernet
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, H C Bernstein
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, A Bertolin
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, R Calladine
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, M Calvi
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, M Calvo Gomez
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, P Camargo Magalhaes
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, A Camboni
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, P Campana
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, D H Campora Perez
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, R Cenci
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, R Vazquez Gomez
14
, P Vazquez Regueiro
4
, C Vázquez Sierra
1
, S Vecchi
21
, J J Velthuis
5
, M Veltri
19
, A Venkateswaran
24
, M Veronesi
1
, M Vesterinen
27
, J V Viana Barbosa
12
, D Vieira
77
, M Vieites Diaz
20
, H Viemann
78
, X Vilasis-Cardona
14
, G Vitali
32
, A Vitkovskiy
1
, A Vollhardt
2
, D Vom Bruch
37
, A Vorobyev
15
, V Vorobyev
48
, N Voropaev
15
, R Waldi
78
, J Walsh
32
, J Wang
57
, J Wang
51
, J Wang
55
, M Wang
57
, Y Wang
63
, Z Wang
2
, D R Ward
41
, H M Wark
3
, N K Watson
43
, D Websdale
16
, A Weiden
2
, C Weisser
46
, B D C Westhenry
5
, D J White
28
, M Whitehead
31
, D Wiedner
11
, G Wilkinson
44
, M Wilkinson
24
, I Williams
41
, M Williams
46
, M R J Williams
28
, T Williams
43
, F F Wilson
66
, W Wislicki
33
, M Witek
42
, L Witola
22
, G Wormser
18
, S A Wotton
41
, H Wu
24
, K Wyllie
12
, Z Xiang
53
, D Xiao
63
, Y Xie
63
, H Xing
72
, A Xu
68
, J Xu
53
, L Xu
57
, M Xu
63
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53
, Z Xu
68
, Z Yang
57
, Z Yang
49
, Y Yao
24
, L E Yeomans
3
, H Yin
63
, J Yu
63
, X Yuan
24
, O Yushchenko
23
, K A Zarebski
43
, M Zavertyaev
81
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, M Zeng
57
, D Zhang
63
, L Zhang
57
, S Zhang
68
, W C Zhang
57
, Y Zhang
12
, A Zhelezov
22
, Y Zheng
53
, X Zhou
53
, Y Zhou
53
, X Zhu
57
, V Zhukov
31
38
, J B Zonneveld
58
, S Zucchelli
40
; LHCb Collaboration
Affiliations
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 3 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 4 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 5 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 6 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 7 University of Michigan, Ann Arbor, USA (associated with Syracuse University, Syracuse, New York, USA).
- 8 INFN Sezione di Milano, Milano, Italy.
- 9 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 10 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 11 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 12 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 13 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 14 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 15 Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia.
- 16 Imperial College London, London, United Kingdom.
- 17 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 18 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 19 INFN Sezione di Firenze, Firenze, Italy.
- 20 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 21 INFN Sezione di Ferrara, Ferrara, Italy.
- 22 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 23 Institute for High Energy Physics NRC Kurchatov Institute (IHEP NRC KI), Protvino, Russia, Protvino, Russia.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 Yandex School of Data Analysis, Moscow, Russia.
- 26 Aix Marseille Université, CNRS/IN2P3, CPPM, Marseille, France.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 29 INFN Sezione di Genova, Genova, Italy.
- 30 National University of Science and Technology "MISIS", Moscow, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 31 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 32 INFN Sezione di Pisa, Pisa, Italy.
- 33 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 34 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 35 INFN Sezione di Cagliari, Monserrato, Italy.
- 36 Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia.
- 37 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 INFN Sezione di Padova, Padova, Italy.
- 40 INFN Sezione di Bologna, Bologna, Italy.
- 41 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 42 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 43 University of Birmingham, Birmingham, United Kingdom.
- 44 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 45 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 46 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 47 National Research University Higher School of Economics, Moscow, Russia (associated with Yandex School of Data Analysis, Moscow, Russia).
- 48 Budker Institute of Nuclear Physics (SB RAS), Novosibirsk, Russia.
- 49 University of Maryland, College Park, Maryland, USA.
- 50 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAS), Moscow, Russia.
- 51 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 University of Chinese Academy of Sciences, Beijing, China.
- 54 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 55 Institute Of High Energy Physics (IHEP), Beijing, China.
- 56 Université Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 57 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 58 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 59 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 60 INFN Sezione di Bari, Bari, Italy.
- 61 Universiteit Maastricht, Maastricht, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 62 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 63 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 64 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 65 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 66 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 69 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 70 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil [associated with Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil].
- 71 Laboratory of Mathematical and Subatomic Physics, Constantine, Algeria [associated with Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil].
- 72 Guangdong Provencial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 73 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 74 National Research Tomsk Polytechnic University, Tomsk, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 75 National Research Centre Kurchatov Institute, Moscow, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 76 School of Physics, University College Dublin, Dublin, Ireland.
- 77 University of Cincinnati, Cincinnati, Ohio, USA.
- 78 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 79 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 80 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 81 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- PMID: 32530675
- DOI: 10.1103/PhysRevLett.124.211802
Item in Clipboard
Search for the Rare Decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-}
R Aaij et al.
Phys Rev Lett.
.
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doi: 10.1103/PhysRevLett.124.211802.
Authors
R Aaij
1
, C Abellán Beteta
2
, T Ackernley
3
, B Adeva
4
, M Adinolfi
5
, H Afsharnia
6
, C A Aidala
7
, S Aiola
8
, Z Ajaltouni
6
, S Akar
9
, P Albicocco
10
, J Albrecht
11
, F Alessio
12
, M Alexander
13
, A Alfonso Albero
14
, G Alkhazov
15
, P Alvarez Cartelle
16
, A A Alves
4
, S Amato
17
, Y Amhis
18
, L An
19
, L Anderlini
19
, G Andreassi
20
, M Andreotti
21
, F Archilli
22
, A Artamonov
23
, M Artuso
24
, K Arzymatov
25
, E Aslanides
26
, M Atzeni
2
, B Audurier
18
, S Bachmann
22
, J J Back
27
, S Baker
16
, V Balagura
18
, W Baldini
21
, A Baranov
25
, R J Barlow
28
, S Barsuk
18
, W Barter
16
, M Bartolini
29
12
, F Baryshnikov
30
, J M Basels
31
, G Bassi
32
, V Batozskaya
33
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24
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11
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32
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34
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, V Belavin
25
, S Belin
35
, V Bellee
20
, K Belous
23
, I Belyaev
36
, G Bencivenni
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, E Ben-Haim
37
, S Benson
1
, A Berezhnoy
38
, R Bernet
2
, D Berninghoff
22
, H C Bernstein
24
, C Bertella
12
, E Bertholet
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, A Bertolin
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2
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, M O Bettler
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; LHCb Collaboration
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 3 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 4 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 5 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 6 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 7 University of Michigan, Ann Arbor, USA (associated with Syracuse University, Syracuse, New York, USA).
- 8 INFN Sezione di Milano, Milano, Italy.
- 9 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 10 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 11 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 12 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 13 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 14 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 15 Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia.
- 16 Imperial College London, London, United Kingdom.
- 17 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 18 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 19 INFN Sezione di Firenze, Firenze, Italy.
- 20 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 21 INFN Sezione di Ferrara, Ferrara, Italy.
- 22 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 23 Institute for High Energy Physics NRC Kurchatov Institute (IHEP NRC KI), Protvino, Russia, Protvino, Russia.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 Yandex School of Data Analysis, Moscow, Russia.
- 26 Aix Marseille Université, CNRS/IN2P3, CPPM, Marseille, France.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 29 INFN Sezione di Genova, Genova, Italy.
- 30 National University of Science and Technology "MISIS", Moscow, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 31 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 32 INFN Sezione di Pisa, Pisa, Italy.
- 33 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 34 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 35 INFN Sezione di Cagliari, Monserrato, Italy.
- 36 Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia.
- 37 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 INFN Sezione di Padova, Padova, Italy.
- 40 INFN Sezione di Bologna, Bologna, Italy.
- 41 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 42 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 43 University of Birmingham, Birmingham, United Kingdom.
- 44 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 45 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 46 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 47 National Research University Higher School of Economics, Moscow, Russia (associated with Yandex School of Data Analysis, Moscow, Russia).
- 48 Budker Institute of Nuclear Physics (SB RAS), Novosibirsk, Russia.
- 49 University of Maryland, College Park, Maryland, USA.
- 50 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAS), Moscow, Russia.
- 51 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 University of Chinese Academy of Sciences, Beijing, China.
- 54 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 55 Institute Of High Energy Physics (IHEP), Beijing, China.
- 56 Université Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 57 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 58 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 59 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 60 INFN Sezione di Bari, Bari, Italy.
- 61 Universiteit Maastricht, Maastricht, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 62 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 63 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 64 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 65 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 66 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 69 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 70 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil [associated with Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil].
- 71 Laboratory of Mathematical and Subatomic Physics, Constantine, Algeria [associated with Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil].
- 72 Guangdong Provencial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 73 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 74 National Research Tomsk Polytechnic University, Tomsk, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 75 National Research Centre Kurchatov Institute, Moscow, Russia [associated with Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia, Moscow, Russia].
- 76 School of Physics, University College Dublin, Dublin, Ireland.
- 77 University of Cincinnati, Cincinnati, Ohio, USA.
- 78 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 79 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 80 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 81 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- PMID: 32530675
- DOI: 10.1103/PhysRevLett.124.211802
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Abstract
A search for the decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-} is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2 fb^{-1}, respectively. No signal is observed. Assuming no contribution from B^{0}→e^{+}e^{-} decays, an upper limit on the branching fraction B(B_{s}^{0}→e^{+}e^{-})<9.4(11.2)×10^{-9} is obtained at 90(95)% confidence level. If no B_{s}^{0}→e^{+}e^{-} contribution is assumed, a limit of B(B^{0}→e^{+}e^{-})<2.5(3.0)×10^{-9} is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values.
