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Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton-proton collisions at $\sqrt{s} =$ 13 TeV

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arxiv 2111.01299 v2 pith:EJXLRZAR submitted 2021-11-01 hep-ex

CMS Collaboration This is my paper · ORCID
classification hep-ex
keywords bosonhiggssearchdecaydecaysdileptonfinalfour-lepton
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton-proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb$^{-1}$, at a center-of-mass energy $\sqrt{s} =$ 13 TeV. No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.

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Cited by 3 Pith papers

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  1. Light scalars within the $\mathcal{CP}$-conserving Aligned-two-Higgs-doublet model

    hep-ph 2024-12 conditional novelty 6.0 of 10

    All seven light-scalar scenarios of the CP-conserving aligned two-Higgs-doublet model contain sizeable parameter regions compatible with current collider and flavour data, with the lightest new scalars bounded by LEP ...

  2. Limits on an Exotic Higgs Decay From a Recast ATLAS Four-Lepton Analysis

    hep-ph 2024-12 conditional novelty 6.0 of 10

    By recasting ATLAS's Z to three dark photon analysis, the authors set the best limits to date on the exotic Higgs decay chain H to aa to VVVV to eight fermions, bounding the branching fraction to roughly 4e-5 to 1e-4.

  3. Charged Higgs Search in 2HDM

    hep-ph 2024-12 accept novelty 5.0 of 10

    Updated LHC and LEP constraints on charged Higgses show that H+ to A W and H+ to H W decay channels are complementary to fermionic channels and extend the search reach in the Type-L 2HDM.

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