Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
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Authors
Aad, G.
Aakvaag, E.
Abbott, B.
Abdelhameed, S.
Abeling, K.
Abicht, N. J.
Abidi, S. H.
Aboelela, M.
Aboulhorma, A.
Abramowicz, H.
Issue Date
2024-08-21
Type
Journal Article
Language
Keywords
Alternative Title
Abstract
Abstract
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
s
$$ \sqrt{s} $$
= 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. 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, κλ, are determined to be −6.2 < κλ < 11.6 (−4.5 < κλ < 9.6) at 95% confidence level, assuming the Standard Model for the expected limits and that new physics would only affect κλ.
Description
Citation
Journal of High Energy Physics. 2024 Aug 21;2024(8):164
