Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at = 13 TeV with the ATLAS detector
Collaboration
60 pages
Published in:
- JHEP 08 (2024) 164,
- JHEP 08 (2024) 164
- Published: Aug 21, 2024and
- Published: Aug, 2024
e-Print:
- 2405.20040 [hep-ex]
Report number:
- CERN-EP-2024-131
Experiments:
- CERN-LHC-ATLAS,
- CERN-LHC-ATLAS
Citations per year
Abstract: (Springer)
A search is presented for non-resonant Higgs boson pair production, targeting the bbZZ, 4V (V = W or Z), VVττ, 4τ, γγVV and γγττ decay channels. Events are categorised based on the multiplicity of light charged leptons (electrons or muons), hadronically decaying tau leptons, and photons. The search is based on a data sample of proton-proton collisions at = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb. No evidence of the signal is found and the observed (expected) upper limit on the cross-section for non-resonant Higgs boson pair production is determined to be 17 (11) times the Standard Model predicted cross-section at 95% confidence level under the background-only hypothesis. The observed (expected) constraints on the HHH coupling modifier, κ, are determined to be −6.2 < κ< 11.6 (−4.5 < κ< 9.6) at 95% confidence level, assuming the Standard Model for the expected limits and that new physics would only affect κ.[graphic not available: see fulltext]Note:
- 60 pages total, author list starting page 43, 10 figures, 10 tables, published in JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2019-04
- Higgs Physics
- Hadron-Hadron Scattering
- p p: colliding beams
- Higgs particle: pair production
- p p: scattering
- Higgs particle: decay modes
- vector boson: pair production
- photon: pair production
- tau: pair production
- bottom: pair production
References(120)
Figures(26)
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