Search for pair-produced vector-like leptons in final states with third-generation leptons and at least three b quark jets in proton-proton collisions at s = 13 TeV

Physics Letters B, vol. 846, pp. 137713

Abstract

The first search is presented for vector-like leptons (VLLs) in the context of the "4321 model", an ultraviolet-complete model with the potential to explain existing Bp h y s i c s measurements that are in tension with standard model predictions.The analyzed data, corresponding to an integrated luminosity of 96.5 fb -1 , were recorded in 2017 and 2018 with the CMS detector at the LHC in proton-proton collisions at √ s = 13 TeV.Final states with ≥3b -t a g g e d jets and two third-generation leptons (ττ, τν τ , or ν τ ν τ ) are considered.Upper limits are derived on the VLL production cross section in the VLL mass range 500-1050 GeV.The maximum likelihood fit prefers the presence of signal at the level of 2.8 standard deviations, for a representative VLL mass point of 600 GeV.As a consequence, the observed upper limits are approximately double the expected limits.

Authors 100

1. A. Tumasyan

   A. Alikhanyan National Laboratory

   Affiliation as printed

   Yerevan Physics Institute, Yerevan, Armenia

2. W. Adam

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

3. Janik Walter Andrejkovic

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

4. T. Bergauer

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

5. S. Chatterjee

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

6. K. Damanakis

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

7. M. Dragicevic

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

8. A. Escalante Del Valle

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

9. Priya Sajid Hussain

   Institute of High Energy Physics

   Affiliation as printed

   Institut für Hochenergiephysik, Vienna, Austria

10. M. Jeitler

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

11. Natascha Krammer

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

12. L. Lechner

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

13. Dietrich Liko

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

14. I. Mikulec

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

15. P. Paulitsch

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

16. F. M. Pitters

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

17. J. Schieck

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

18. R. Schöfbeck

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

19. Dennis Schwarz

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

20. S. Templ

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

21. W. Waltenberger

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

22. C.-E. Wulz

    Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik, Vienna, Austria

23. M. R. Darwish

    University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Universiteit Antwerpen, Antwerpen, Belgium

24. X. Janssen

    University of Antwerp · Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik , Vienna , Austria

    Universiteit Antwerpen, Antwerpen, Belgium

25. T. Kello

    University of Antwerp · Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik , Vienna , Austria

    Universiteit Antwerpen, Antwerpen, Belgium

26. Haifa Rejeb Sfar

    University of Antwerp · Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik , Vienna , Austria

    Universiteit Antwerpen, Antwerpen, Belgium

27. P. Van Mechelen

    University of Antwerp · Institute of High Energy Physics

    Affiliation as printed

    Institut für Hochenergiephysik , Vienna , Austria

    Universiteit Antwerpen, Antwerpen, Belgium

28. E. S. Bols

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

29. J. D’Hondt

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

30. A. De Moor

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

31. M. Delcourt

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

32. H. El Faham

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

33. S. Lowette

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

34. S. Moortgat

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

35. A. Morton

    A. Alikhanyan National Laboratory · Vrije Universiteit Brussel · European Organization for Nuclear Research

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Yerevan Physics Institute , Yerevan , Armenia

    CERN, Geneva, Switzerland

36. D. Müller

    Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

37. Abanti Ranadhir Sahasransu

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

38. S. Tavernier

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

39. W. Van Doninck

    University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Universiteit Antwerpen, Antwerpen, Belgium

40. David Vannerom

    Vrije Universiteit Brussel · University of Antwerp

    Affiliation as printed

    Universiteit Antwerpen , Antwerpen , Belgium

    Vrije Universiteit Brussel, Brussel, Belgium

41. B. Clerbaux

    Université Libre de Bruxelles · Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

42. G. De Lentdecker

    Université Libre de Bruxelles · Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

43. L. Favart

    Université Libre de Bruxelles · Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

44. D. Hohov

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

45. J. Jaramillo

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

46. Kyeongpil Lee

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

47. M. Mahdavikhorrami

    Université Libre de Bruxelles · Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel , Brussel , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

48. Inna Makarenko

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

49. Andrea Malara

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

50. S. R. Paredes Saenz

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

51. L. Pétré

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

52. N. Postiau

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

53. Elizabeth Rose Starling

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

54. Laurent Thomas

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

55. M. Vanden Bemden

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

56. Catherine Vander Velde

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles, Bruxelles, Belgium

57. Pascal Vanlaer

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

58. D. Dobur

    Université Libre de Bruxelles · Ghent University

    Affiliation as printed

    Ghent University , Ghent , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

59. J. Knolle

    Université Libre de Bruxelles · Ghent University

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Ghent University, Ghent, Belgium

60. Luka Lambrecht

    Université Libre de Bruxelles · Ghent University

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Ghent University, Ghent, Belgium

61. G. Mestdach

    Université Libre de Bruxelles · Ghent University

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Ghent University, Ghent, Belgium

62. M. Niedziela

    Université Libre de Bruxelles · Ghent University

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Ghent University, Ghent, Belgium

63. César Rendón

    Ghent University · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Ghent University, Ghent, Belgium

64. C. Roskas

    Université Libre de Bruxelles · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

65. A. Samalan

    Ghent University

    Affiliation as printed

    Ghent University , Ghent , Belgium

    Ghent University, Ghent, Belgium

66. K. Skovpen

    Ghent University · European Organization for Nuclear Research

    Affiliation as printed

    Ghent University , Ghent , Belgium

    Authors affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN

67. M. Tytgat

    Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles , Bruxelles , Belgium

    Université Libre de Bruxelles, Bruxelles, Belgium

68. N. Van Den Bossche

    Ghent University · UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Ghent University, Ghent, Belgium

69. B. Vermassen

    Ghent University · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Ghent University, Ghent, Belgium

70. Liam Wezenbeek

    Ghent University · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Ghent University, Ghent, Belgium

71. A. Benecke

    Ghent University · UCLouvain

    Affiliation as printed

    Ghent University , Ghent , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

72. G. Bruno

    Ghent University · UCLouvain

    Affiliation as printed

    Ghent University , Ghent , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

73. F. Bury

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

74. C. Caputo

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

75. P. David

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

76. Christophe Delaere

    Ghent University · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Ghent University, Ghent, Belgium

77. I. S. Donertas

    UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

78. ANDREA GIAMMANCO

    Ghent University · UCLouvain

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    Ghent University , Ghent , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

79. K. Jaffel

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

80. Sandhya Jain

    University of Minnesota · UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    University of Minnesota, Minneapolis, MN, USA

81. V. Lemaı̂tre

    UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

82. K. Mondal

    UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

83. J. Prisciandaro

    UCLouvain

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    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

84. Angela Taliercio

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

85. T. T. Tran

    Ghent University · UCLouvain

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    Ghent University , Ghent , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

86. P. Vischia

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

87. S. Wertz

    UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Université Catholique de Louvain, Louvain-la-Neuve, Belgium

88. Gilvan Augusto Alves

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

    Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

89. E. Coelho

    Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

    Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

90. C. Hensel

    Centro Brasileiro de Pesquisas Físicas · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

91. Arthur M. Moraes

    Centro Brasileiro de Pesquisas Físicas · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

92. P. Rebello Teles

    Centro Brasileiro de Pesquisas Físicas · UCLouvain

    Affiliation as printed

    Université Catholique de Louvain , Louvain-la-Neuve , Belgium

    Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

93. W. L. Aldá Júnior

    Universidade do Estado do Rio de Janeiro

    Affiliation as printed

    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

94. M. Alves Gallo Pereira

    Universidade do Estado do Rio de Janeiro

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    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

95. M. Barroso Ferreira Filho

    Universidade do Estado do Rio de Janeiro

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    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

96. H. Brandao Malbouisson

    Universidade do Estado do Rio de Janeiro · Universidade Federal do ABC · Universidade Estadual Paulista (Unesp)

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    Universidade Estadual Paulista , Universidade Federal do ABC , São Paulo , Brazil

    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

97. W. Carvalho

    Universidade do Estado do Rio de Janeiro · Centro Brasileiro de Pesquisas Físicas

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    Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

98. J. Chinellato

    Universidade do Estado do Rio de Janeiro · Centro Brasileiro de Pesquisas Físicas

    Affiliation as printed

    Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

    Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

99. E. M. Da Costa

    Centro Brasileiro de Pesquisas Físicas · Rice University

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    Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

    Rice University, Houston, TX, USA

100. G. G. Da Silveira

     Universidade do Estado do Rio de Janeiro · Centro Brasileiro de Pesquisas Físicas

     Affiliation as printed

     Centro Brasileiro de Pesquisas Fisicas , Rio de Janeiro , Brazil

     Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil