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Study of High-Transverse-Momentum Higgs Boson Production in Association with a Vector Boson in the qqbb Final State with the ATLAS Detector

Aad, G. ; Åkesson, T.P.A. LU orcid ; Doglioni, C. LU ; Ekman, Alexander LU ; Hedberg, V. LU ; Herde, Hannah LU orcid ; Konya, B. LU ; Lytken, E. LU orcid ; Poettgen, R. LU orcid and Simpson, N.D. LU , et al. (2024) In Physical Review Letters 132(13).
Abstract
This Letter presents the first study of Higgs boson production in association with a vector boson (V ¼ W or Z) in the fully hadronic qqbb final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at √s = 13 TeV and corresponding to an integrated luminosity of 137 fb−1. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting b-tagging properties are used to identify jets consistent with Higgs bosons decaying into bb̄. Dominant backgrounds from multijet production are determined directly from the data, and a likelihood fit to the jet mass distribution of Higgs boson candidates is used to extract the... (More)
This Letter presents the first study of Higgs boson production in association with a vector boson (V ¼ W or Z) in the fully hadronic qqbb final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at √s = 13 TeV and corresponding to an integrated luminosity of 137 fb−1. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting b-tagging properties are used to identify jets consistent with Higgs bosons decaying into bb̄. Dominant backgrounds from multijet production are determined directly from the data, and a likelihood fit to the jet mass distribution of Higgs boson candidates is used to extract the number of signal events. The VH production cross section is measured inclusively and differentially in several ranges of Higgs boson transverse momentum: 250–450, 450–650, and greater than 650 GeV. The inclusive signal yield relative to the standard model expectation is observed to be μ = 1.4+1.0−0.9 and the corresponding cross section is 3.1 ± 1.3(stat)+1.8−1.4(syst) pb. © 2024 CERN, for the ATLAS Collaboration. (Less)
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Signal processing, Tellurium compounds, ATLAS detectors, B-tagging, Final state, Hadronics, Higgs boson, Integrated luminosity, Proton proton collisions, Substructure technique, Transverse momenta, Vector boson, Bosons
in
Physical Review Letters
volume
132
issue
13
article number
131802
publisher
American Physical Society
external identifiers
  • scopus:85189480721
  • pmid:38613283
ISSN
0031-9007
DOI
10.1103/PhysRevLett.132.131802
language
English
LU publication?
yes
id
14688af8-b21c-4425-90fe-6d0d3958c888
date added to LUP
2024-04-18 11:29:32
date last changed
2024-04-19 03:07:34
@article{14688af8-b21c-4425-90fe-6d0d3958c888,
  abstract     = {{This Letter presents the first study of Higgs boson production in association with a vector boson (V ¼ W or Z) in the fully hadronic qqbb final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at √s = 13 TeV and corresponding to an integrated luminosity of 137 fb−1. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting b-tagging properties are used to identify jets consistent with Higgs bosons decaying into bb̄. Dominant backgrounds from multijet production are determined directly from the data, and a likelihood fit to the jet mass distribution of Higgs boson candidates is used to extract the number of signal events. The VH production cross section is measured inclusively and differentially in several ranges of Higgs boson transverse momentum: 250–450, 450–650, and greater than 650 GeV. The inclusive signal yield relative to the standard model expectation is observed to be μ = 1.4+1.0−0.9 and the corresponding cross section is 3.1 ± 1.3(stat)+1.8−1.4(syst) pb. © 2024 CERN, for the ATLAS Collaboration.}},
  author       = {{Aad, G. and Åkesson, T.P.A. and Doglioni, C. and Ekman, Alexander and Hedberg, V. and Herde, Hannah and Konya, B. and Lytken, E. and Poettgen, R. and Simpson, N.D. and Smirnova, O. and Zwalinski, L.}},
  issn         = {{0031-9007}},
  keywords     = {{Signal processing; Tellurium compounds; ATLAS detectors; B-tagging; Final state; Hadronics; Higgs boson; Integrated luminosity; Proton proton collisions; Substructure technique; Transverse momenta; Vector boson; Bosons}},
  language     = {{eng}},
  number       = {{13}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Study of High-Transverse-Momentum Higgs Boson Production in Association with a Vector Boson in the qqbb Final State with the ATLAS Detector}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.132.131802}},
  doi          = {{10.1103/PhysRevLett.132.131802}},
  volume       = {{132}},
  year         = {{2024}},
}