Angular analysis of the decay $$ {B}_s^0 $$ → ϕe+e−

Journal of High Energy Physics, vol. 2025

Abstract

A bstract An angular analysis of the decay $$ {B}_s^0 $$ B s 0 → ϕe + e − is presented, using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8 and 13 TeV. The combined dataset corresponds to an integrated luminosity of 9 fb − 1 . Observables are determined by fitting time-integrated projections of the angular distribution in three bins of dielectron mass squared, q 2 , corresponding to [0 . 1 , 1 . 1], [1 . 1 , 6 . 0] and [15 . 0 , 19 . 0] GeV 2 /c 4 . The results are compatible with predictions based on the Standard Model of particle physics.

Authors 100

1. R. Aaij

   National Institute for Subatomic Physics

   Affiliation as printed

   Nikhef National Institute for Subatomic Physics

   Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands

2. A. S. W. Abdelmotteleb

   University of Warwick

   Affiliation as printed

   University of Warwick

   Department of Physics, University of Warwick, Coventry, United Kingdom

3. Carlos Abellán Beteta

   University of Zurich

   Affiliation as printed

   Universität Zürich

4. F. Abudinén

   University of Warwick

   Affiliation as printed

   University of Warwick

   Department of Physics, University of Warwick, Coventry, United Kingdom

5. T. Ackernley

   University of Liverpool

   Affiliation as printed

   University of Liverpool

   Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom

6. A. A. Adefisoye

   Syracuse University

   Affiliation as printed

   Syracuse University

   Syracuse University, Syracuse, NY, United States

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

   H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom

9. P. Adlarson

   Uppsala University

   Affiliation as printed

   Uppsala University

   Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden

10. C. Agapopoulou

    Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

    Affiliation as printed

    Université Paris-Saclay, CNRS/IN2P3, IJCLab

11. C. Aidala

    University of Michigan

    Affiliation as printed

    University of Michigan

    University of Michigan, Ann Arbor, MI, United States

12. Z. Ajaltouni

    Centre National de la Recherche Scientifique · Université Clermont Auvergne · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    Université Clermont Auvergne, CNRS/IN2P3, LPC

13. S. Akar

    Centre National de la Recherche Scientifique · Université Clermont Auvergne · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    Université Clermont Auvergne, CNRS/IN2P3, LPC

14. K. Carvalho Akiba

    National Institute for Subatomic Physics

    Affiliation as printed

    Nikhef National Institute for Subatomic Physics

    Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands

15. P. Albicocco

    Istituto Nazionale di Fisica Nucleare · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

    Affiliation as printed

    INFN Laboratori Nazionali di Frascati

    INFN Laboratori Nazionali di Frascati, Frascati, Italy

16. J. Albrecht

    TU Dortmund University · Lamarr Institute for Machine Learning and Artificial Intelligence

    Affiliation as printed

    Lamarr Institute for Machine Learning and Artificial Intelligence

    Technische Universität Dortmund

17. F. Alessio

    European Organization for Nuclear Research

    Affiliation as printed

    European Organization for Nuclear Research (CERN)

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

18. Zakariya Aliouche

    University of Manchester

    Affiliation as printed

    University of Manchester

    Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom

19. P. Álvarez Cartelle

    University of Cambridge

    Affiliation as printed

    University of Cambridge

    Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

20. R. Amalric

    Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3

21. S. Amato

    Universidade Federal do Rio de Janeiro

    Affiliation as printed

    Universidade Federal do Rio de Janeiro (UFRJ)

    Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil

22. S. Amato

    University of Bristol

    Affiliation as printed

    University of Bristol

    H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom

23. Y. Amhis

    Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

    Affiliation as printed

    Université Paris-Saclay, CNRS/IN2P3, IJCLab

24. Liupan An

    Peking University

    Affiliation as printed

    Peking University

25. L. Anderlini

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

    Affiliation as printed

    INFN Sezione di Firenze

    INFN Sezione di Firenze, Firenze, Italy

26. M. Andersson

    University of Zurich

    Affiliation as printed

    Universität Zürich

27. A. Andreianov
28. P. Andreola

    University of Zurich

    Affiliation as printed

    Universität Zürich

29. M. Andreotti

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

    INFN Sezione di Ferrara, Ferrara, Italy

30. Alessia Anelli

    Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca · University of Milano-Bicocca · European Organization for Nuclear Research

    Affiliation as printed

    European Organization for Nuclear Research (CERN)

    INFN Sezione di Milano-Bicocca

    Università degli Studi di Milano-Bicocca

    INFN Sezione di Milano-Bicocca, Milano, Italy

31. D. Ao

    Institute of High Energy Physics · University of Chinese Academy of Sciences

    Affiliation as printed

    University of Chinese Academy of Sciences

    Institute Of High Energy Physics (IHEP), Beijing, China

    University of Chinese Academy of Sciences, Beijing, China

32. F. Archilli

    University of Rome Tor Vergata · Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata

    Affiliation as printed

    INFN Sezione di Roma Tor Vergata

    Università di Roma Tor Vergata

    INFN Sezione di Roma Tor Vergata, Roma, Italy

33. Zaratsyan Areg

    Syracuse University

    Affiliation as printed

    Syracuse University

    Syracuse University, Syracuse, NY, United States

34. Matteo Argenton

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

    INFN Sezione di Ferrara, Ferrara, Italy

35. S. Arguedas Cuendis

    Consejo Nacional de Rectores · European Organization for Nuclear Research

    Affiliation as printed

    Consejo Nacional de Rectores (CONARE)

    European Organization for Nuclear Research (CERN)

    Consejo Nacional de Rectores (CONARE), San Jose, Costa Rica

36. A. Artamonov
37. M. Artuso

    Syracuse University

    Affiliation as printed

    Syracuse University

    Syracuse University, Syracuse, NY, United States

38. E. Aslanides

    Centre National de la Recherche Scientifique · Aix-Marseille Université · Centre de physique des particules de Marseille · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    Aix Marseille Univ, CNRS/IN2P3, CPPM

    Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France

39. R. Ataíde Da Silva

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

    Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)

40. M. Atzeni

    Massachusetts Institute of Technology

    Affiliation as printed

    Massachusetts Institute of Technology

    Massachusetts Institute of Technology, Cambridge, MA, United States

41. B. Audurier

    Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Université Paris-Saclay · CEA Paris-Saclay - Etablissement de Saclay · CEA Paris-Saclay · Institut de Recherche sur les Lois Fondamentales de l'Univers

    Affiliation as printed

    Université Paris-Saclay, Centre d’Etudes de Saclay (CEA), IRFU, Saclay, France

42. D. Bacher

    University of Oxford

    Affiliation as printed

    University of Oxford

    Department of Physics, University of Oxford, Oxford, United Kingdom

43. I. Bachiller

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

    Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)

44. S. Bachmann

    Heidelberg University

    Affiliation as printed

    Ruprecht-Karls-Universität Heidelberg

45. Marie Bachmayer

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

    Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)

46. John J Back

    University of Warwick

    Affiliation as printed

    University of Warwick

    Department of Physics, University of Warwick, Coventry, United Kingdom

47. P. Baladrón Rodríguez

    Universidade de Santiago de Compostela

    Affiliation as printed

    Universidade de Santiago de Compostela

48. V. Balagura

    Centre National de la Recherche Scientifique · École Polytechnique · Institut National de Physique Nucléaire et de Physique des Particules · Institut Polytechnique de Paris · Laboratoire Leprince-Ringuet

    Affiliation as printed

    Institut Polytechnique de Paris

    Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France

49. A Balboni

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

    INFN Sezione di Ferrara, Ferrara, Italy

50. W. Baldini

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

    INFN Sezione di Ferrara, Ferrara, Italy

51. Luca Balzani

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

52. H. Bao

    University of Chinese Academy of Sciences

    Affiliation as printed

    University of Chinese Academy of Sciences

    University of Chinese Academy of Sciences, Beijing, China

53. J. Baptista de Souza Leite

    University of Liverpool

    Affiliation as printed

    University of Liverpool

    Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom

54. C. Barbero Pretel

    Universidade de Santiago de Compostela · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Université Paris-Saclay · CEA Paris-Saclay - Etablissement de Saclay · CEA Paris-Saclay · Institut de Recherche sur les Lois Fondamentales de l'Univers

    Affiliation as printed

    Universidade de Santiago de Compostela

    Université Paris-Saclay, Centre d’Etudes de Saclay (CEA), IRFU, Saclay, France

55. M. Barbetti

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

    Affiliation as printed

    INFN Sezione di Firenze

    INFN Sezione di Firenze, Firenze, Italy

56. I. R. Barbosa

    Pontifícia Universidade Católica do Rio de Janeiro

    Affiliation as printed

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

57. Roger John Barlow

    University of Manchester

    Affiliation as printed

    University of Manchester

    Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom

58. Mikhail Barnyakov

    Istituto Nazionale di Fisica Nucleare, Sezione di Bologna

    Affiliation as printed

    INFN Sezione di Bologna

    INFN Sezione di Bologna, Bologna, Italy

59. S. Barsuk

    Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

    Affiliation as printed

    Université Paris-Saclay, CNRS/IN2P3, IJCLab

60. W. Barter

    University of Edinburgh

    Affiliation as printed

    University of Edinburgh

    School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom

61. Justin Bartz

    Syracuse University

    Affiliation as printed

    Syracuse University

    Syracuse University, Syracuse, NY, United States

62. Saliha Bashir

    AGH University of Krakow

    Affiliation as printed

    AGH — University of Krakow, Faculty of Physics and Applied Computer Science

63. B. Batsukh

    Institute for High Energy Physics · Institute of High Energy Physics

    Affiliation as printed

    Institute Of High Energy Physics (IHEP)

    Institute Of High Energy Physics (IHEP), Beijing, China

64. Piera Battista

    Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

    Affiliation as printed

    Université Paris-Saclay, CNRS/IN2P3, IJCLab

65. A. Bay

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

    Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)

66. A. Beck

    Massachusetts Institute of Technology

    Affiliation as printed

    Massachusetts Institute of Technology

67. M. Becker

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

68. F. Bedeschi

    Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

    Affiliation as printed

    INFN Sezione di Pisa

    INFN Sezione di Pisa, Pisa, Italy

69. I. Bediaga

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Físicas (CBPF)

70. Noah Albin Behling

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

71. S. Belin

    Universidade de Santiago de Compostela

    Affiliation as printed

    Universidade de Santiago de Compostela

72. K. Belous

    Institute of High Energy Physics

    Affiliation as printed

    Institute Of High Energy Physics (IHEP), Beijing, China

73. I. Belov

    Istituto Nazionale di Fisica Nucleare, Sezione di Genova

    Affiliation as printed

    INFN Sezione di Genova

    INFN Sezione di Genova, Genova, Italy

74. I. Belyaev

    Istituto Nazionale di Fisica Nucleare, Sezione di Roma I

    Affiliation as printed

    INFN Sezione di Roma La Sapienza

    INFN Sezione di Roma La Sapienza, Roma, Italy

75. G. Benane

    Centre National de la Recherche Scientifique · Aix-Marseille Université · Centre de physique des particules de Marseille · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    Aix Marseille Univ, CNRS/IN2P3, CPPM

    Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France

76. G. Bencivenni

    Istituto Nazionale di Fisica Nucleare · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

    Affiliation as printed

    INFN Laboratori Nazionali di Frascati

    INFN Laboratori Nazionali di Frascati, Frascati, Italy

77. E. Ben-Haim

    Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3

78. Alexander Berezhnoy
79. R. Bernet

    University of Zurich · Universitat Ramon Llull

    Affiliation as printed

    Universität Zürich

    La Salle, Universitat Ramon Llull, Barcelona, Spain

80. Sergi Bernet Andrés

    Universitat Ramon Llull

    Affiliation as printed

    La Salle, Universitat Ramon Llull

    La Salle, Universitat Ramon Llull, Barcelona, Spain

81. A. Bertolin

    Istituto Nazionale di Fisica Nucleare, Sezione di Padova

    Affiliation as printed

    INFN Sezione di Padova

    INFN Sezione di Padova, Padova, Italy

82. C. Betancourt

    University of Zurich

    Affiliation as printed

    Universität Zürich

83. F. Betti

    University of Edinburgh

    Affiliation as printed

    University of Edinburgh

    School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom

84. J. Bex

    University of Cambridge

    Affiliation as printed

    University of Cambridge

    Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

85. Ia. Bezshyiko

    University of Zurich

    Affiliation as printed

    Universität Zürich

86. Oleg Bezshyyko

    Taras Shevchenko National University of Kyiv

    Affiliation as printed

    Taras Schevchenko University of Kyiv, Faculty of Physics

    Taras Schevchenko University of Kyiv, Faculty of Physics, Kyiv, Ukraine

87. J. Bhom

    Institute of Nuclear Physics, Polish Academy of Sciences

    Affiliation as printed

    Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences

88. M. S. Bieker

    University of Bonn

    Affiliation as printed

    Universität Bonn — Helmholtz-Institut für Strahlen und Kernphysik

89. N. V. Biesuz

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara

    INFN Sezione di Ferrara, Ferrara, Italy

90. P. Billoir

    Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules

    Affiliation as printed

    LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3

91. Alice Biolchini

    National Institute for Subatomic Physics

    Affiliation as printed

    Nikhef National Institute for Subatomic Physics

    Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands

92. M. Birch

    Imperial College London

    Affiliation as printed

    Imperial College London

    Imperial College London, London, United Kingdom

93. F. C. R. Bishop

    Centre National de la Recherche Scientifique · Laboratoire d’Annecy de Physique des Particules · Institut National de Physique Nucléaire et de Physique des Particules · Université Savoie Mont Blanc

    Affiliation as printed

    Université Savoie Mont Blanc, CNRS, IN2P3-LAPP

94. A. Bitadze

    University of Manchester

    Affiliation as printed

    University of Manchester

    Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom

95. A. Bizzeti
96. Thomas Blake

    University of Victoria · University of Warwick

    Affiliation as printed

    University of Victoria

    University of Warwick

    Department of Physics, University of Warwick, Coventry, United Kingdom

97. F. Blanc

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

    Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)

98. J. E. Blank

    TU Dortmund University

    Affiliation as printed

    Technische Universität Dortmund

99. Steven Roy Blusk

    Syracuse University

    Affiliation as printed

    Syracuse University

    Syracuse University, Syracuse, NY, United States

100. Vladimir Bocharnikov

     Peking University · State Key Laboratory of Nuclear Physics and Technology

     Affiliation as printed

     School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China