4.4 Article

Search for t(t)over-barH production in the H → b(b)over-bar decay channel with leptonic t(t)over-bar decays in proton-proton collisions at √s=13 TeV

期刊

JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 -

出版社

SPRINGER
DOI: 10.1007/JHEP03(2019)026

关键词

Hadron-Hadron scattering (experiments); Higgs physics; Top physics

资金

  1. Austrian Federal Ministry of Science, Research and Economy
  2. Austrian Science Fund
  3. Belgian Fonds de la Recherche Scientifique
  4. Fonds voor Wetenschappelijk Onderzoek
  5. CNPq
  6. CAPES
  7. FAPERJ
  8. FAPESP
  9. Bulgarian Ministry of Education and Science
  10. CERN
  11. Chinese Academy of Sciences
  12. Ministry of Science and Technology
  13. National Natural Science Foundation of China
  14. Colombian Funding Agency (COLCIENCIAS)
  15. Croatian Ministry of Science, Education and Sport
  16. Croatian Science Foundation
  17. Research Promotion Foundation, Cyprus
  18. Secretariat for Higher Education, Science, Technology and Innovation, Ecuador
  19. Ministry of Education and Research, Estonia
  20. Estonian Research Council, Estonia [IUT23-4, IUT23-6]
  21. European Regional Development Fund, Estonia
  22. Academy of Finland
  23. Finnish Ministry of Education and Culture
  24. Helsinki Institute of Physics
  25. Institut National de Physique Nucleaire et de Physique des Particules/CNRS, France
  26. Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France
  27. Bundesministerium fur Bildung und Forschung, Germany
  28. Deutsche Forschungsgemeinschaft, Germany
  29. Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  30. General Secretariat for Research and Technology, Greece
  31. National Research, Development and Innovation Fund, Hungary
  32. Department of Atomic Energy, India
  33. Department of Science and Technology, India
  34. Institute for Studies in Theoretical Physics and Mathematics, Iran
  35. Science Foundation, Ireland
  36. Istituto Nazionale di Fisica Nucleare, Italy
  37. Ministry of Science, ICT and Future Planning, Republic of Korea
  38. National Research Foundation (NRF), Republic of Korea
  39. Lithuanian Academy of Sciences
  40. Ministry of Education (Malaysia)
  41. University of Malaya (Malaysia)
  42. BUAP
  43. CINVESTAV
  44. CONACYT
  45. LNS
  46. SEP
  47. UASLP-FAI
  48. Ministry of Business, Innovation and Employment, New Zealand
  49. Pakistan Atomic Energy Commission
  50. Ministry of Science and Higher Education, Poland
  51. National Science Centre, Poland
  52. Fundacao para a Ciencia e a Tecnologia, Portugal
  53. JINR, Dubna
  54. Ministry of Education and Science of the Russian Federation
  55. Federal Agency of Atomic Energy of the Russian Federation
  56. Russian Academy of Sciences
  57. Russian Foundation for Basic Research
  58. Ministry of Education, Science and Technological Development of Serbia
  59. Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Programa Consolider-Ingenio 2010, Plan Estatal de Investigacion Cientifica y Tecnica y de Innovacion 2013-2016, Plan de Ciencia, Tecnologia e Innovacion 2013-2017 del Principado de Asturias, S
  60. Fondo Europeo de Desarrollo Regional, Spain
  61. ETH Board
  62. ETH Zurich
  63. PSI
  64. SNF
  65. UniZH
  66. Canton Zurich
  67. SER
  68. Ministry of Science and Technology, Taipei
  69. Thailand Center of Excellence in Physics
  70. Institute for the Promotion of Teaching Science and Technology of Thailand
  71. Special Task Force for Activating Research
  72. National Science and Technology Development Agency of Thailand
  73. Scientific and Technical Research Council of Turkey
  74. Turkish Atomic Energy Authority
  75. National Academy of Sciences of Ukraine, Ukraine
  76. State Fund for Fundamental Researches, Ukraine
  77. Science and Technology Facilities Council, U. K.
  78. US Department of Energy
  79. US National Science Foundation
  80. Marie-Curie programme (European Union)
  81. European Research Council (European Union)
  82. Horizon 2020 Grant (European Union) [675440]
  83. Leventis Foundation
  84. A. P. Sloan Foundation
  85. Alexander von Humboldt Foundation
  86. Belgian Federal Science Policy Office
  87. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  88. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  89. F.R.S.-FNRS (Belgium)
  90. FWO (Belgium) [30820817]
  91. Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
  92. Hungarian Academy of Sciences (Hungary)
  93. New National Excellence Program UNKP (Hungary)
  94. NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105]
  95. Council of Scientific and Industrial Research, India
  96. HOMING PLUS programme of the Foundation for Polish Science
  97. European Union, Regional Development Fund (Poland)
  98. Mobility Plus programme of the Ministry of Science and Higher Education (Poland)
  99. National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]
  100. National Priorities Research Program by Qatar National Research Fund
  101. Programa de Excelencia Mar a de Maeztu
  102. Programa Severo Ochoa del Principado de Asturias
  103. Thalis programme
  104. Aristeia programme
  105. EU-ESF
  106. Greek NSRF
  107. Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand)
  108. Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
  109. Welch Foundation [C-1845]
  110. Weston Havens Foundation (U.S.A.)
  111. STFC [ST/N000242/1, ST/S000739/1] Funding Source: UKRI
  112. Science and Technology Facilities Council [ST/N000242/1] Funding Source: researchfish

向作者/读者索取更多资源

A search is presented for the associated production of a standard model Higgs boson with a top quark-antiquark pair (ttH), in which the Higgs boson decays into a b quark-antiquark pair, in proton-proton collisions at a centre-of-mass energy =13 TeV. The data correspond to an integrated luminosity of 35.9 fb(-1) recorded with the CMS detector at the CERN LHC. Candidate ttH events are selected that contain either one or two electrons or muons from the t decays and are categorised according to the number of jets. Multivariate techniques are employed to further classify the events and eventually discriminate between signal and background. The results are characterised by an observed tH signal strength relative to the standard model cross section, = sigma/sigma(SM), under the assumption of a Higgs boson mass of 125 GeV. A combined fit of multivariate discriminant distributions in all categories results in an observed (expected) upper limit on of 1.5 (0.9) at 95% confidence level, and a best fit value of 0.72 +/- 0.24(stat) +/- 0.38(syst), corresponding to an observed (expected) signal significance of 1.6 (2.2) standard deviations above the background-only hypothesis.

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