Compact Muon Solenoid
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| CMS-PAS-SUS-23-013 | ||
| Search for dark matter produced in association with a dark Higgs boson decaying into a bottom quark pair in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 2025-08-15 | ||
| Abstract: A search for dark matter produced in association with a dark Higgs boson decaying into a bottom quark pair has been performed in proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector during the 2016-2018 data-taking period at the CERN LHC. The analyzed data sample corresponds to an integrated luminosity of 138 fb$ ^{-1} $. The results are interpreted in terms of a novel theoretical model of dark matter production that, together with a spin-1 gauge boson mediator, predicts the existence of a Higgs-boson-like particle in the dark sector (i.e., a dark Higgs boson). This search focuses on an experimental signature with large missing transverse momentum from dark matter production and a resonant structure in the invariant mass of the bottom quark pair from the dark Higgs boson decay. Limits at the 95% confidence level on the signal strength for dark Higgs boson mass hypotheses below 160 GeV are set for the first time with CMS data. Values of the mediator mass up to 2.5-4.5 TeV are excluded depending on the dark Higgs boson mass. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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