Combination of Searches for Resonant Higgs Boson Pair Production Using pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector

G. Aad, T.P.A. Åkesson, C. Doglioni, P.A. Ekman, V. Hedberg, H. Herde, B. Konya, E. Lytken, R. Poettgen, N.D. Simpson, O. Smirnova, E.J. Wallin, L. Zwalinski, ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three decay channels: bb[over ¯]bb[over ¯], bb[over ¯]τ^{+}τ^{-}, and bb[over ¯]γγ. No excess above the expected Standard Model background is observed and upper limits are set at the 95% confidence level on the production cross section of Higgs boson pairs originating from the decay of a narrow scalar resonance with mass in the range 251 GeV-5 TeV. The observed (expected) limits are in the range 0.96-600 fb (1.2-390 fb). The limits are interpreted in the type-I two-Higgs-doublet model and the minimal supersymmetric standard model, and constrain parameter space not previously excluded by other searches.
Original languageEnglish
Article number231801
JournalPhysical Review Letters
Volume132
Issue number23
DOIs
Publication statusPublished - 2024

Subject classification (UKÄ)

  • Subatomic Physics

Free keywords

  • article
  • boson

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