Abstract
We explore the sensitivity of the LHC at 14 TeV centre-of-mass energy (LHC14) to the single production and decay of top-antitop resonances in the four-top final state. We focus on the same-sign dilepton channel, and work within a simplified model with a vector boson coupling to the Standard Model only via its interactions with right-handed top quarks. We find it is possible to discover (exclude) such a vector boson with 300 fb−1 of integrated luminosity up to a mass of 1.2 (1.6) TeV for a modest coupling to tops of g ρ = 2. We present our results as an exclusion limit on the cross-section × branching ratio for ease of recasting, and interpret them in the context of the gauge-singlet vector boson ρ X present in many simple Composite Higgs theories.
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Liu, D., Mahbubani, R. Probing top-antitop resonances with \( t\overline{t} \) scattering at LHC14. J. High Energ. Phys. 2016, 116 (2016). https://doi.org/10.1007/JHEP04(2016)116
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DOI: https://doi.org/10.1007/JHEP04(2016)116