Compact Muon Solenoid
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| CMS-B2G-25-005 | ||
| Search for resonances in events with four top quarks decaying to two leptons and jets with the CMS experiment | ||
| CMS Collaboration | ||
| 2026-03-11 | ||
| Abstract: A search for a heavy resonance in four top quark events is presented, and interpreted in models featuring a new vector, scalar, or pseudoscalar boson which interacts exclusively with top quarks. Proton-proton collision data at centre-of-mass energies of 13.0 TeV and 13.6 TeV are analysed, corresponding to integrated luminosities of 138 fb$ ^{-1} $ and 35 fb$ ^{-1} $, respectively. Events with two leptons (electrons or muons) and jets are selected. The mass of the heavy resonance is reconstructed from a pair of jets that are formed using a variable-radius jet clustering algorithm. A machine learning approach is used to identify if these jets originate from top quarks that decay fully hadronically. The dominant background from misidentified jets is estimated from data as a function of the invariant dijet mass. Upper limits are set on the resonance production cross section for resonance masses between 500 GeV and 4 TeV and relative widths ranging from 4 to 50%. Resonances with 50% relative width are excluded at 95% confidence level up to masses of 850 GeV, with an expected exclusion limit of 1000 GeV. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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