doi: 10.1103/PhysRevLett.131.041804.
Search for Rare Decays of D^{0} Mesons into Two Muons
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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, S Aiola
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, Z Ajaltouni
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, S Akar
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, K Akiba
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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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, M Andersson
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, S Bachmann
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, M Bachmayer
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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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, S Barsuk
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, W Barter
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, M Bartolini
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, F Baryshnikov
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, G Bassi
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, B Batsukh
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, A Battig
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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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, 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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, D Zuliani
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, G Zunica
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; 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, MI, United States (associated with Institution Syracuse University, Syracuse, NY, United States).
- 11 INFN Sezione di Milano, Milano, Italy.
- 12 University of Cincinnati, Cincinnati, OH, United States.
- 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, NY, United States.
- 25 University of Chinese Academy of Sciences, Beijing, China.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 28 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 29 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 30 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 31 Imperial College London, London, United Kingdom.
- 32 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 33 INFN Sezione di Pisa, Pisa, Italy.
- 34 Institute Of High Energy Physics (IHEP), Beijing, China.
- 35 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 36 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with Institution ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 37 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 38 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 39 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 40 University of Birmingham, Birmingham, United Kingdom.
- 41 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 42 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 43 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 44 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 45 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 46 School of Physics, University College Dublin, Dublin, Ireland.
- 47 INFN Sezione di Bari, Bari, Italy.
- 48 INFN Sezione di Bologna, Bologna, Italy.
- 49 INFN Sezione di Genova, Genova, Italy.
- 50 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 51 INFN Sezione di Cagliari, Monserrato, Italy.
- 52 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 53 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 54 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 55 AGH - University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 56 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 57 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 58 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 59 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 60 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 61 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 62 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, MA, United States.
- 65 University of Maryland, College Park, MD, United States.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, NM, United States.
- 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 Faculty of Material Engineering and Physics, Cracow, Poland (associated with Institution Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37566853
- DOI: 10.1103/PhysRevLett.131.041804
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Search for Rare Decays of D^{0} Mesons into Two Muons
R Aaij et al.
Phys Rev Lett.
.
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doi: 10.1103/PhysRevLett.131.041804.
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
, S Aiola
11
, Z Ajaltouni
8
, S Akar
12
, K Akiba
1
, 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
, S Bachmann
26
, M Bachmayer
29
, J J Back
2
, A Bailly-Reyre
9
, P Baladron Rodriguez
5
, V Balagura
28
, W Baldini
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, J Baptista de Souza Leite
30
, M Barbetti
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, R J Barlow
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, S Barsuk
20
, W Barter
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, M Bartolini
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, F Baryshnikov
22
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32
, G Bassi
33
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34
, A Battig
13
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29
, A Beck
2
, M Becker
13
, F Bedeschi
33
, I B Bediaga
30
, A Beiter
24
, V Belavin
22
, S Belin
5
, V Bellee
3
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22
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22
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27
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35
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9
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37
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3
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3
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6
, J Bhom
38
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39
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23
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40
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9
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1
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31
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, S Zhang
69
, S Zhang
42
, Y Zhang
42
, Y Zhang
63
, A Zharkova
22
, A Zhelezov
26
, Y Zheng
25
, T Zhou
42
, X Zhou
25
, Y Zhou
25
, V Zhovkovska
20
, X Zhu
41
, X Zhu
43
, Z Zhu
25
, V Zhukov
32
22
, Q Zou
34
25
, S Zucchelli
48
, D Zuliani
37
, 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, MI, United States (associated with Institution Syracuse University, Syracuse, NY, United States).
- 11 INFN Sezione di Milano, Milano, Italy.
- 12 University of Cincinnati, Cincinnati, OH, United States.
- 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, NY, United States.
- 25 University of Chinese Academy of Sciences, Beijing, China.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 28 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 29 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 30 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 31 Imperial College London, London, United Kingdom.
- 32 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 33 INFN Sezione di Pisa, Pisa, Italy.
- 34 Institute Of High Energy Physics (IHEP), Beijing, China.
- 35 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 36 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with Institution ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 37 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 38 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 39 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- 40 University of Birmingham, Birmingham, United Kingdom.
- 41 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 42 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 43 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 44 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 45 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 46 School of Physics, University College Dublin, Dublin, Ireland.
- 47 INFN Sezione di Bari, Bari, Italy.
- 48 INFN Sezione di Bologna, Bologna, Italy.
- 49 INFN Sezione di Genova, Genova, Italy.
- 50 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 51 INFN Sezione di Cagliari, Monserrato, Italy.
- 52 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 53 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 54 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 55 AGH - University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 56 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 57 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 58 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain.
- 59 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 60 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 61 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 62 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, MA, United States.
- 65 University of Maryland, College Park, MD, United States.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, NM, United States.
- 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 Faculty of Material Engineering and Physics, Cracow, Poland (associated with Institution Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37566853
- DOI: 10.1103/PhysRevLett.131.041804
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Abstract
A search for the very rare D^{0}→μ^{+}μ^{-} decay is performed using data collected by the LHCb experiment in proton-proton collisions at sqrt[s]=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb^{-1}. The search is optimized for D^{0} mesons from D^{*+}→D^{0}π^{+} decays but is also sensitive to D^{0} mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at B(D^{0}→μ^{+}μ^{-})<3.1×10^{-9} at a 90% C.L. This represents the world's most stringent limit, constraining models of physics beyond the standard model.
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