Search for the radiative $$ {\Xi}_b^{-} $$ → Ξ−γ decay

Journal of High Energy Physics, vol. 2022

Abstract

Abstract The first search for the rare radiative decay $$ {\Xi}_b^{-} $$ Ξ b − → Ξ−γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. The $$ {\Xi}_b^{-} $$ Ξ b − → Ξ−J/ψ channel is used as normalization. No $$ {\Xi}_b^{-} $$ Ξ b − → Ξ−γ signal is found and an upper limit of $$ \mathcal{B} $$ B ( $$ {\Xi}_b^{-} $$ Ξ b − → Ξ−γ) < 1.3 × 10−4 at 95% confidence level is obtained.

Authors 97

1. R. Aaij

   National Institute for Subatomic Physics

   Affiliation as printed

   Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands

2. A. S. W. Abdelmotteleb

   University of Warwick

   Affiliation as printed

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

3. Carlos Abellán Beteta

   University of Zurich

   Affiliation as printed

   Physik-Institut, Universität Zürich, Zürich, Switzerland

4. T. Ackernley

   University of Liverpool

   Affiliation as printed

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

5. B Adeva

   Universidade de Santiago de Compostela

   Affiliation as printed

   Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain

6. M. Adinolfi

   University of Bristol

   Affiliation as printed

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

7. H. Afsharnia

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

   Affiliation as printed

   Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France

8. C. Aidala

   University of Michigan

   Affiliation as printed

   University of Michigan, Ann Arbor, United States

9. S. Aiola

   Istituto Nazionale di Fisica Nucleare, Sezione di Milano

   Affiliation as printed

   INFN Sezione di Milano, Milano, Italy

10. Z. Ajaltouni

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

    Affiliation as printed

    Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France

11. S. Akar

    University of Cincinnati

    Affiliation as printed

    University of Cincinnati, Cincinnati, OH, United States

12. J. Albrecht

    TU Dortmund University

    Affiliation as printed

    Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

13. F. Alessio

    European Organization for Nuclear Research

    Affiliation as printed

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

14. Michael Thomas Alexander

    University of Glasgow

    Affiliation as printed

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

15. A. Alfonso Albero

    Institut de Ciències del Cosmos · Universitat de Barcelona

    Affiliation as printed

    ICCUB, Universitat de Barcelona, Barcelona, Spain

16. Zakariya Aliouche

    University of Manchester

    Affiliation as printed

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

17. G. Alkhazov

    Kurchatov Institute · Petersburg Nuclear Physics Institute

    Affiliation as printed

    Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia

18. P. Álvarez Cartelle

    University of Cambridge

    Affiliation as printed

    Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

19. S. Amato

    Universidade Federal do Rio de Janeiro

    Affiliation as printed

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

20. J. L. Amey

    University of Bristol

    Affiliation as printed

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

21. 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, Orsay, France

22. Liupan An

    Universidade Federal do Rio de Janeiro

    Affiliation as printed

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

23. L Anderlini

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

    Affiliation as printed

    INFN Sezione di Firenze, Firenze, Italy

24. A. Andreianov

    Kurchatov Institute · Petersburg Nuclear Physics Institute

    Affiliation as printed

    Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia

25. M. Andreotti

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara, Ferrara, Italy

26. F. Archilli

    Heidelberg University

    Affiliation as printed

    Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

27. A. Artamonov

    Kurchatov Institute · Institute for High Energy Physics

    Affiliation as printed

    Institute for High Energy Physics NRC Kurchatov Institute (IHEP NRC KI), Protvino, Russia

28. M. Artuso

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, NY, United States

29. K. Arzymatov

    Yandex School of Data Analysis · Yandex (Russia)

    Affiliation as printed

    Yandex School of Data Analysis, Moscow, Russia

30. 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, Marseille, France

31. S. Bachmann

    Heidelberg University

    Affiliation as printed

    Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

32. M. Bachmayer

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

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

33. J. J. Back

    University of Warwick

    Affiliation as printed

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

34. P. Baladrón Rodríguez

    Universidade de Santiago de Compostela

    Affiliation as printed

    Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain

35. 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

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

36. W. Baldini

    Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara

    Affiliation as printed

    INFN Sezione di Ferrara, Ferrara, Italy

37. J. Baptista de Souza Leite

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil

38. Roger John Barlow

    University of Manchester

    Affiliation as printed

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

39. 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, Orsay, France

40. W Barter

    Imperial College London

    Affiliation as printed

    Imperial College London, London, United Kingdom

41. M. Bartolini

    Istituto Nazionale di Fisica Nucleare, Sezione di Genova

    Affiliation as printed

    INFN Sezione di Genova, Genova, Italy

42. F. Baryshnikov

    National University of Science and Technology

    Affiliation as printed

    National University of Science and Technology "MISIS", Moscow, Russia

43. J. M. Basels Aachen I. Physikalisches Institut

    RWTH Aachen University

    Affiliation as printed

    I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany

44. Saliha Bashir

    AGH University of Krakow

    Affiliation as printed

    AGH — University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland

45. G. Bassi

    Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

    Affiliation as printed

    INFN Sezione di Pisa, Pisa, Italy

46. B. Batsukh

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, NY, United States

47. A. Battig

    TU Dortmund University

    Affiliation as printed

    Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

48. A. Bay

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

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

49. A. Beck

    TU Dortmund University

    Affiliation as printed

    Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

50. F. Bedeschi

    Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

    Affiliation as printed

    INFN Sezione di Pisa, Pisa, Italy

51. I. Bediaga

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil

52. A. Beiter

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, NY, United States

53. V. Belavin

    Yandex School of Data Analysis · Yandex (Russia)

    Affiliation as printed

    Yandex School of Data Analysis, Moscow, Russia

54. S. Belin

    Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari

    Affiliation as printed

    INFN Sezione di Cagliari, Monserrato, Italy

55. V. Bellée

    University of Zurich

    Affiliation as printed

    Physik-Institut, Universität Zürich, Zürich, Switzerland

56. K. Belous

    Kurchatov Institute · Institute for High Energy Physics

    Affiliation as printed

    Institute for High Energy Physics NRC Kurchatov Institute (IHEP NRC KI), Protvino, Russia

57. I. Belov

    Lomonosov Moscow State University

    Affiliation as printed

    Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia

58. I. Belyaev

    Kurchatov Institute · Institute for Theoretical and Experimental Physics

    Affiliation as printed

    Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia

59. G. Bencivenni

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

    Affiliation as printed

    INFN Laboratori Nazionali di Frascati, Frascati, Italy

60. 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, Paris, France

61. Alexander Berezhnoy

    Lomonosov Moscow State University

    Affiliation as printed

    Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia

62. R. Bernet

    University of Zurich

    Affiliation as printed

    Physik-Institut, Universität Zürich, Zürich, Switzerland

63. D. Berninghoff

    Heidelberg University

    Affiliation as printed

    Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

64. H. C. Bernstein

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, NY, United States

65. C. Bertella

    European Organization for Nuclear Research

    Affiliation as printed

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

66. A. Bertolin

    University of Padua · Istituto Nazionale di Fisica Nucleare, Sezione di Padova

    Affiliation as printed

    Universita degli Studi di Padova, Universita e INFN, Padova, Padova, Italy

67. C. Betancourt

    University of Zurich

    Affiliation as printed

    Physik-Institut, Universität Zürich, Zürich, Switzerland

68. F. Betti

    European Organization for Nuclear Research

    Affiliation as printed

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

69. Ia. Bezshyiko

    University of Zurich

    Affiliation as printed

    Physik-Institut, Universität Zürich, Zürich, Switzerland

70. S. Bhasin

    University of Bristol

    Affiliation as printed

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

71. J. Bhom

    Institute of Nuclear Physics, Polish Academy of Sciences

    Affiliation as printed

    Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland

72. L. Bian

    Wuhan University

    Affiliation as printed

    School of Physics and Technology, Wuhan University, Wuhan, China

73. M. S. Bieker

    TU Dortmund University

    Affiliation as printed

    Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

74. S. Bifani

    University of Birmingham

    Affiliation as printed

    University of Birmingham, Birmingham, United Kingdom

75. 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, Paris, France

76. M. Birch

    Imperial College London

    Affiliation as printed

    Imperial College London, London, United Kingdom

77. F. C. R. Bishop

    University of Cambridge

    Affiliation as printed

    Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

78. A. Bitadze

    University of Manchester

    Affiliation as printed

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

79. A. Bizzeti

    Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

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    INFN Sezione di Firenze, Firenze, Italy

80. M. Bjørn

    University of Oxford

    Affiliation as printed

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

81. Michele Piero Blago

    European Organization for Nuclear Research

    Affiliation as printed

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

82. Thomas Blake

    University of Warwick

    Affiliation as printed

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

83. F. Blanc

    École Polytechnique Fédérale de Lausanne

    Affiliation as printed

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

84. Steven Roy Blusk

    Syracuse University

    Affiliation as printed

    Syracuse University, Syracuse, NY, United States

85. D. Bobulska

    University of Glasgow

    Affiliation as printed

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

86. J. A. Boelhauve

    TU Dortmund University

    Affiliation as printed

    Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

87. O. Boente García

    Universidade de Santiago de Compostela

    Affiliation as printed

    Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain

88. T. Boettcher

    University of Cincinnati

    Affiliation as printed

    University of Cincinnati, Cincinnati, OH, United States

89. A. S. Boldyrev

    National Research University Higher School of Economics

    Affiliation as printed

    National Research University Higher School of Economics, Moscow, Russia

90. A. Bondar

    Kurchatov Institute · Petersburg Nuclear Physics Institute

    Affiliation as printed

    Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia

91. N. Bondar

    Kurchatov Institute · Petersburg Nuclear Physics Institute

    Affiliation as printed

    Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI), Gatchina, Russia

92. S. Borghi

    University of Manchester

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

93. M. Borisyak

    Yandex School of Data Analysis · Yandex (Russia)

    Affiliation as printed

    Yandex School of Data Analysis, Moscow, Russia

94. M. Borsato

    Heidelberg University

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    Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

95. J. T. Borsuk

    Institute of Nuclear Physics, Polish Academy of Sciences

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    Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland

96. Sonia Amina Bouchiba

    École Polytechnique Fédérale de Lausanne

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

97. T. J. V. Bowcock

    University of Liverpool

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