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Search for a light CP-odd Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at s = 13 TeV with the ATLAS detector

Aad G.
•
Aakvaag E.
•
Abbott B.
altro
Zwalinski L.
2024
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
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 fb−1 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 τ+τ− pair which subsequently decays into a fully leptonic μ+νμν ̄τe−ν ̄eντ or e+νeν ̄τμ−ν ̄μντ 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 τ+τ− pair.
DOI
10.1007/JHEP12(2024)126
Archivio
https://hdl.handle.net/11390/1309042
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-105007304138
https://ricerca.unityfvg.it/handle/11390/1309042
Diritti
open access
Soggetti
  • Hadron-Hadron Scatter...

  • Higgs Physics

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