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Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at s=13 TeV

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2023
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
Constraints on the Higgs boson self-coupling are set by combining double-Higgs boson analyses in the bb ̄bb ̄, bb ̄τ+τ− and bb ̄γγ decay channels with single-Higgs boson analyses targeting the γγ, ZZ⁎, WW⁎, τ+τ− and bb ̄ decay channels. The data used in these analyses were recorded by the ATLAS detector at the LHC in proton–proton collisions at s=13 TeV and correspond to an integrated luminosity of 126–139 fb−1. The combination of the double-Higgs analyses sets an upper limit of μHH<2.4 at 95% confidence level on the double-Higgs production cross-section normalised to its Standard Model prediction. Combining the single-Higgs and double-Higgs analyses, with the assumption that new physics affects only the Higgs boson self-coupling (λHHH), values outside the interval −0.4
DOI
10.1016/j.physletb.2023.137745
Archivio
https://hdl.handle.net/11390/1256484
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85164519627
https://ricerca.unityfvg.it/handle/11390/1256484
Diritti
open access
google-scholar
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