Search for the lepton-flavor violating decay Bs0→ϕμ±τ∓

Physical review. D/Physical review. D., vol. 110

Abstract

A search for the lepton-flavor violating decays Bs0→ϕμ±τ∓ is presented, using a sample of proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb−1 . The τ leptons are selected using decays with three charged pions. No significant excess is observed, and an upper limit on the branching fraction is determined to be B(Bs0→ϕμ±τ∓)<1.0×10−5 at 90% confidence level. © 2024 CERN, for the LHCb Collaboration 2024 CERN

Authors 100

1. R. Aaij

   National Institute for Subatomic Physics

   Affiliation as printed

   Nikhef National Institute for Subatomic Physics

2. A. S. W. Abdelmotteleb

   University of Warwick

   Affiliation as printed

   University of Warwick

3. Carlos Abellán Beteta

   University of Zurich

   Affiliation as printed

   Universität Zürich

4. F. Abudinén

   University of Warwick

   Affiliation as printed

   University of Warwick

5. T. Ackernley

   University of Liverpool

   Affiliation as printed

   University of Liverpool

6. A. A. Adefisoye

   Syracuse University

   Affiliation as printed

   Syracuse University, Syracuse, New York, USA

7. B. Adeva

   Universidade de Santiago de Compostela

   Affiliation as printed

   Universidade de Santiago de Compostela

8. M. Adinolfi

   University of Bristol

   Affiliation as printed

   University of Bristol

9. P. Adlarson

   Uppsala University · University of Glasgow

   Affiliation as printed

   University of Glasgow

   Uppsala University

10. C. Agapopoulou

    Université Paris-Saclay

    Affiliation as printed

    Université Paris-Saclay

11. C. Aidala

    University of Michigan

    Affiliation as printed

    University of Michigan

12. Z. Ajaltouni

    Université Clermont Auvergne

    Affiliation as printed

    Université Clermont Auvergne

13. S. Akar

    University of Cincinnati

    Affiliation as printed

    University of Cincinnati

14. K. Carvalho Akiba

    National Institute for Subatomic Physics

    Affiliation as printed

    Nikhef National Institute for Subatomic Physics

15. P. Albicocco

    Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

    Affiliation as printed

    INFN Laboratori Nazionali di Frascati

16. J. Albrecht

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

17. F. Alessio

    European Organization for Nuclear Research

    Affiliation as printed

    European Organization for Nuclear Research (CERN), Geneva, Switzerland

18. Michael Thomas Alexander

    University of Glasgow

    Affiliation as printed

    University of Glasgow

19. Zakariya Aliouche

    University of Manchester

    Affiliation as printed

    University of Manchester

20. P. Álvarez Cartelle

    University of Cambridge

    Affiliation as printed

    University of Cambridge

21. R. Amalric

    Sorbonne Université

    Affiliation as printed

    Sorbonne Université

22. S. Amato

    Universidade Federal do Rio de Janeiro

    Affiliation as printed

    Universidade Federal do Rio de Janeiro (UFRJ)

23. J. L. Amey

    University of Bristol

    Affiliation as printed

    University of Bristol

24. Y. Amhis

    Université Paris-Saclay · European Organization for Nuclear Research

    Affiliation as printed

    European Organization for Nuclear Research (CERN), Geneva, Switzerland

    Université Paris-Saclay

25. Liupan An

    Peking University

    Affiliation as printed

    Peking University

26. L. Anderlini

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

    Affiliation as printed

    INFN Sezione di Firenze

27. M. Andersson

    University of Zurich

    Affiliation as printed

    Universität Zürich

28. A. Andreianov

    European Organization for Nuclear Research

    Affiliation as printed

    CERN

29. P. Andreola

    University of Zurich

    Affiliation as printed

    Universität Zürich

30. M. Andreotti

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

31. D. Andreou

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, New York, USA

32. Alessia Anelli

    Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca

    Affiliation as printed

    INFN Sezione di Milano-Bicocca

33. D. Ao

    University of Chinese Academy of Sciences

    Affiliation as printed

    University of Chinese Academy of Sciences

34. F. Archilli

    Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata

    Affiliation as printed

    INFN Sezione di Roma Tor Vergata

35. Matteo Argenton

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

36. S. Arguedas Cuendis

    Consejo Nacional de Rectores

    Affiliation as printed

    Consejo Nacional de Rectores (CONARE)

37. A. Artamonov

    European Organization for Nuclear Research

    Affiliation as printed

    CERN

38. M. Artuso

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, New York, USA

39. E. Aslanides

    Aix-Marseille Université · Centre de physique des particules de Marseille

    Affiliation as printed

    Aix Marseille Univ

    CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)

40. M. Atzeni

    Massachusetts Institute of Technology

    Affiliation as printed

    Massachusetts Institute of Technology

41. B. Audurier

    Laboratoire Leprince-Ringuet

    Affiliation as printed

    Laboratoire Leprince-Ringuet

    LLR - Laboratoire Leprince-Ringuet (Route de Saclay, 91128 Palaiseau Cedex - France)

42. D. Bacher

    University of Oxford

    Affiliation as printed

    University of Oxford

43. I. Bachiller

    Laboratoire d’Annecy de Physique des Particules · Université Savoie Mont Blanc

    Affiliation as printed

    Université Savoie Mont Blanc

    LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)

44. S. Bachmann

    Heidelberg University

    Affiliation as printed

    Ruprecht-Karls-Universität Heidelberg

45. Marie Bachmayer
    Affiliation as printed

    Institute of Physics

46. John J Back

    University of Warwick

    Affiliation as printed

    University of Warwick

47. P. Baladrón Rodríguez

    Universidade de Santiago de Compostela

    Affiliation as printed

    Universidade de Santiago de Compostela

48. V. Balagura

    Laboratoire Leprince-Ringuet

    Affiliation as printed

    Laboratoire Leprince-Ringuet

    LLR - Laboratoire Leprince-Ringuet (Route de Saclay, 91128 Palaiseau Cedex - France)

49. W. Baldini

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

50. H. Bao

    University of Chinese Academy of Sciences

    Affiliation as printed

    University of Chinese Academy of Sciences

51. J. Baptista de Souza Leite

    University of Liverpool

    Affiliation as printed

    University of Liverpool

52. M. Barbetti

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

    Affiliation as printed

    INFN Sezione di Firenze

53. I. R. Barbosa

    Universidade Federal do Rio de Janeiro · Pontifícia Universidade Católica do Rio de Janeiro

    Affiliation as printed

    Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)

    Universidade Federal do Rio de Janeiro (UFRJ)

54. Roger John Barlow

    University of Manchester

    Affiliation as printed

    University of Manchester

55. Mikhail Barnyakov

    Istituto Nazionale di Fisica Nucleare, Sezione di Bologna

    Affiliation as printed

    INFN Sezione di Bologna

56. S. Barsuk

    Université Paris-Saclay

    Affiliation as printed

    Université Paris-Saclay

57. W. Barter

    University of Edinburgh

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    University of Edinburgh

58. M. Bartolini

    University of Cambridge

    Affiliation as printed

    University of Cambridge

59. Justin Bartz

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, New York, USA

60. F. Baryshnikov

    European Organization for Nuclear Research

    Affiliation as printed

    CERN

61. J. M. Basels Aachen

    RWTH Aachen University

    Affiliation as printed

    RWTH Aachen University

62. G. Bassi

    Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

    Affiliation as printed

    INFN Sezione di Pisa

63. B. Batsukh

    Institute of High Energy Physics

    Affiliation as printed

    Institute of High Energy Physics (IHEP)

64. A. Bay
    Affiliation as printed

    Institute of Physics

65. A. Beck

    University of Warwick

    Affiliation as printed

    University of Warwick

66. M. Becker

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

67. F. Bedeschi

    Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

    Affiliation as printed

    INFN Sezione di Pisa

68. I. Bediaga

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Físicas (CBPF)

69. S. Belin

    Universidade de Santiago de Compostela

    Affiliation as printed

    Universidade de Santiago de Compostela

70. V. Bellée

    University of Zurich

    Affiliation as printed

    Universität Zürich

71. K. Belous

    European Organization for Nuclear Research

    Affiliation as printed

    CERN

72. I. Belov

    Istituto Nazionale di Fisica Nucleare, Sezione di Genova

    Affiliation as printed

    INFN Sezione di Genova

73. I. Belyaev

    Istituto Nazionale di Fisica Nucleare, Sezione di Roma I

    Affiliation as printed

    INFN Sezione di Roma La Sapienza

74. G. Benane

    Aix-Marseille Université · Centre de physique des particules de Marseille

    Affiliation as printed

    Aix Marseille Univ

    CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)

75. G. Bencivenni

    Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

    Affiliation as printed

    INFN Laboratori Nazionali di Frascati

76. E. Ben-Haim

    Sorbonne Université

    Affiliation as printed

    Sorbonne Université

77. Alexander Berezhnoy

    European Organization for Nuclear Research

    Affiliation as printed

    CERN

78. R. Bernet

    University of Zurich

    Affiliation as printed

    Universität Zürich

79. Sergi Bernet Andrés

    Universitat Ramon Llull

    Affiliation as printed

    Universitat Ramon Llull

80. A. Bertolin

    Istituto Nazionale di Fisica Nucleare, Sezione di Padova

    Affiliation as printed

    INFN Sezione di Padova

81. C. Betancourt

    University of Zurich

    Affiliation as printed

    Universität Zürich

82. F. Betti

    University of Edinburgh

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    University of Edinburgh

83. J. Bex

    University of Cambridge

    Affiliation as printed

    University of Cambridge

84. Ia. Bezshyiko

    University of Zurich

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    Universität Zürich

85. J. Bhom

    Institute of Nuclear Physics, Polish Academy of Sciences

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    Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences

86. M. S. Bieker

    TU Dortmund University

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    Technische Universität Dortmund

87. N. V. Biesuz

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

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    INFN Sezione di Ferrara

88. P. Billoir

    Sorbonne Université

    Affiliation as printed

    Sorbonne Université

89. Alice Biolchini

    National Institute for Subatomic Physics

    Affiliation as printed

    Nikhef National Institute for Subatomic Physics

90. M. Birch

    Imperial College London

    Affiliation as printed

    Imperial College London

91. F. C. R. Bishop

    Laboratoire d’Annecy de Physique des Particules · Université Savoie Mont Blanc

    Affiliation as printed

    Université Savoie Mont Blanc

    LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)

92. A. Bitadze

    University of Manchester

    Affiliation as printed

    University of Manchester

93. A. Bizzeti
94. Thomas Blake

    University of Warwick

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    University of Warwick

95. F. Blanc
    Affiliation as printed

    Institute of Physics

96. J. E. Blank

    TU Dortmund University

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    Technische Universität Dortmund

97. Steven Roy Blusk

    Syracuse University

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    Syracuse University, Syracuse, New York, USA

98. Vladimir Bocharnikov

    European Organization for Nuclear Research

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    CERN

99. J. A. Boelhauve

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

100. O. Boente García

     Laboratoire Leprince-Ringuet

     Affiliation as printed

     Laboratoire Leprince-Ringuet

     LLR - Laboratoire Leprince-Ringuet (Route de Saclay, 91128 Palaiseau Cedex - France)