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

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 (US)
Pages (from-to)231801
Number of pages1
JournalPhysical review letters
Volume132
Issue number23
DOIs
StatePublished - Jun 7 2024

ASJC Scopus subject areas

  • General Physics and Astronomy

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