Combination of searches for resonant Higgs boson pair production using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
Phys.Rev.Lett. 132 (2024) 231801, 2024.

Abstract (data abstract)
A combination of searches for resonant Higgs boson pair production 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: bbbb, bb$\tau\tau$, bb$\gamma\gamma$. No excess above the expected 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 Minimimal Supersymmetric Standard Model, and constrain parameter space not previously excluded by other searches.

  • Local p-value

    Data from Figure 1a

    10.17182/hepdata.145876.v1/t1

    Local p-value as a function of the resonance mass $m_{X}$. Some table entries are empty because resonance masses from 251...

  • Observed significance

    10.17182/hepdata.145876.v1/t2

    Observed significance as a function of the resonance $m_{X}$. Some table entries are empty because resonance masses from 251 GeV...

  • Observed and expected upper limits at the 95% CL

    Data from Figure 1b

    10.17182/hepdata.145876.v1/t3

    Observed and expected upper limits at the 95% CL on the resonant Higgs boson pair production cross section as a...

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