Probing top-antitop resonances with \( t\overline{t} \) scattering at LHC14

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Regular Article - Theoretical Physics


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.


Beyond Standard Model Technicolor and Composite Models 


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Copyright information

© The Author(s) 2016

Authors and Affiliations

  1. 1.State Key Laboratory of Theoretical Physics, Institute of Theoretical PhysicsChinese Academy of SciencesBeijingPeople’s Republic of China
  2. 2.Institut de Théorie des Phénomènes Physiques, EPFLLausanneSwitzerland

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