Measurement of simplified template cross sections of the Higgs boson produced in association with <math display="inline"><mi>W</mi></math> or <math display="inline"><mi>Z</mi></math> bosons in the <math display="inline"><mi>H</mi><mo stretchy="false">→</mo><mi>b</mi><mover accent="true"><mi>b</mi><mo stretchy="false">¯</mo></mover></math> decay channel in proton-proton collisions at <math display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>

Benecke, Anna;Bruno, Giacomo;Bury, Florian;Caputo, Claudio;Bethani, Agni;et.al.
(2024) Physical review D — Vol. 109 (2024)

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Authors
  • Benecke, AnnaUCLouvain
    Author
  • Author
  • Bury, FlorianUCLouvain
    Author
  • Caputo, ClaudioUCLouvain
    Author
  • David, PieterUCLouvain
    Author
  • Author
  • Donertas, Izzeddin SuatUCLouvain
    Author
  • Author
  • Jaffel, KhawlaUCLouvain
    Author
  • Jain, SandhyaUCLouvain
    Author
  • Jain, SandhyaUCLouvain
    Author
  • Author
  • Mondal, KuntalUCLouvain
    Author
  • Taliercio, AngelaUCLouvain
    Author
  • Tran, Tu ThongUCLouvain
    Author
  • Vischia, PietroUCLouvain
    Author
  • Wertz, SébastienUCLouvain
    Author
  • Bethani, Agniorcid-logoUCLouvain
    Author
  • et. al.
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Abstract
Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (<math display="inline"><mi>W</mi></math>, <math display="inline"><mi>Z</mi></math>) and decaying to a pair of <math display="inline"><mi>b</mi></math> quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the <math display="inline"><mi>W</mi></math> and <math display="inline"><mi>Z</mi></math> bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs of resolved <math display="inline"><mi>b</mi></math>-tagged jets, or from single large-radius jets containing the particles arising from two <math display="inline"><mi>b</mi></math> quarks. Proton-proton collision data at <math display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>, collected by the CMS experiment in 2016–2018 and corresponding to a total integrated luminosity of <math display="inline"><mn>138</mn><mtext> </mtext><mtext> </mtext><msup><mi>fb</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>, are analyzed. The inclusive signal strength, defined as the product of the observed production cross section and branching fraction relative to the standard model expectation, combining all analysis categories, is found to be <math display="inline"><mi>μ</mi><mo>=</mo><mn>1.1</mn><msubsup><mn>5</mn><mrow><mo>-</mo><mn>0.20</mn></mrow><mrow><mo>+</mo><mn>0.22</mn></mrow></msubsup></math>. This corresponds to an observed (expected) significance of 6.3 (5.6) standard deviations.
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Benecke, A., Bruno, G., Bury, F., Caputo, C., David, P., Delaere, C., Donertas, I. S., Giammanco, A., Jaffel, K., Jain, S., Jain, S., Lemaitre, V., Mondal, K., Taliercio, A., Tran, T. T., Vischia, P., Wertz, S., CMS, Bethani, A., & et al. (2024). Measurement of simplified template cross sections of the Higgs boson produced in association with <math display=“inline”><mi>W</mi></math> or <math display=“inline”><mi>Z</mi></math> bosons in the <math display=“inline”><mi>H</mi><mo stretchy=“false”>→</mo><mi>b</mi><mover accent=“true”><mi>b</mi><mo stretchy=“false”>¯</mo></mover></math> decay channel in proton-proton collisions at <math display=“inline”><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>. Physical review D, 109. https://doi.org/10.1103/PhysRevD.109.092011 (Original work published 2024)