2024 Articles
Search for a light CP-odd Higgs boson decaying into a pair of π-leptons in proton-proton collisions at βπ = 13 TeV with the ATLAS detector
Abstract This paper reports a search for a light CP-odd scalar resonance with a mass of 20 GeV to 90 GeV in 13 TeV proton-proton collision data with an integrated luminosity of 140 fbβ1 collected with the ATLAS detector at the Large Hadron Collider. The analysis assumes the resonance is produced via gluon-gluon fusion and decays into a πβΊπβ» pair which subsequently decays into a fully leptonic πβΊπ_ππΜ_π πΒ―πΜ_π π_π or π + π_π πΜ_π πΒ― πΜ_π π_π final state
No significant excess of events above the predicted Standard Model background is observed. The results are interpreted within a flavour-aligned two-Higgs-doublet model, and a model-independent cross-section interpretation is also given. Upper limits at 95% confidence level between 3.0 pb and 68 pb are set on the cross-section for producing a CP-odd Higgs boson that decays into a πβΊπβ» pair.
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Also Published In
- Title
- Journal of High Energy Physics
- DOI
- https://doi.org/10.1007/JHEP12(2024)126
More About This Work
- Academic Units
- Physics
- Published Here
- January 22, 2025
Notes
Hadron-Hadron Scattering, Higgs Physics
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