A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
JHEP 07 (2023) 200, 2023.

Abstract (data abstract)
A search for heavy Higgs bosons decaying into a pair of vector bosons and produced in association with a vector boson is performed, using final states with two leptons of the same electric charge (electrons or muons), missing transverse momentum and jets. A data sample of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider between 2015 and 2018 is used. The data correspond to a total integrated luminosity of 139 fb−1. The observed data are in agreement with Standard Model background expectations. The results are interpreted using higher dimensional operators in an Effective Field Theory. The upper production cross-section limits at 95\% confidence level are calculated as a function of the heavy Higgs boson mass and coupling strengths to vector bosons. Limits are set in the Higgs boson mass region 300 to 1500 GeV, and depend upon the assumed couplings. The highest heavy Higgs boson mass excluded with the coupling combinations explored is 900 GeV. Limits on coupling strength are also provided.

  • Figure 3a

    Data from Figure 3 (left), located on page 18.

    10.17182/hepdata.129285.v1/t1

    Comparison between data and SM predictions for the meff distributions in the boosted SR. The background predictions are obtained through...

  • Figure 3b

    Data from Figure 3 (right), located on page 18.

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    Comparison between data and SM predictions for the meff distributions in the resolved SR. The background predictions are obtained through...

  • Figure 6a_exp

    Data from Figure 6 (top right), located on page 23.

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    Expected 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 6a_exp_1s

    Data from Figure 6 (top right), located on page 23.

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    Expected 95% CL upper limits with 1-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6a_exp_2s

    Data from Figure 6 (top right), located on page 23.

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    Expected 95% CL upper limits with 2-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6a_obs

    Data from Figure 6 (top right), located on page 23.

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    Observed 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 6b_exp

    Data from Figure 6 (top left), located on page 23.

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    Expected 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 6b_exp_1s

    Data from Figure 6 (top left), located on page 23.

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    Expected 95% CL upper limits with 1-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6b_exp_2s

    Data from Figure 6 (top left), located on page 23.

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    Expected 95% CL upper limits with 2-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6b_obs

    Data from Figure 6 (top left), located on page 23.

    10.17182/hepdata.129285.v1/t10

    Observed 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 6c_exp

    Data from Figure 6 (bottom), located on page 23.

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    Expected 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 6c_exp_1s

    Data from Figure 6 (bottom), located on page 23.

    10.17182/hepdata.129285.v1/t12

    Expected 95% CL upper limits with 1-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6c_exp_2s

    Data from Figure 6 (bottom), located on page 23.

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    Expected 95% CL upper limits with 2-sigma uncertainty on the production of a heavy Higgs boson as functions of fw...

  • Figure 6c_obs

    Data from Figure 6 (bottom), located on page 23.

    10.17182/hepdata.129285.v1/t14

    Observed 95% CL upper limits on the production of a heavy Higgs boson as functions of fw and fww with...

  • Figure 7a

    Data from Figure 7 (left), located on page 24.

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    Observed (black solid curve) and expected (black dashed curve) 95% CL upper limits on the production of a heavy Higgs...

  • Figure 7b

    Data from Figure 7 (right), located on page 24.

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    Observed (black solid curve) and expected (black dashed curve) 95% CL upper limits on the production of a heavy Higgs...

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