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We address the potential of measurements with boosted single-top final states at the high-luminosity LHC (HL-LHC) and possible future hadron colliders: the high-energy LHC (HE-LHC), and the future circular collider (FCC). As new physics examples to assess the potential, we consider the search for $tbW$ anomalous couplings and for a weakly-coupled $W$ boson. The FCC would improve by a factor of two the sensitivity to anomalous couplings of the HL-LHC. For $W$ bosons, the FCC is sensitive to $W$ couplings $2-5$ times smaller than the HL-LHC in the mass range 2-4 TeV, and to masses up to 30 TeV in the case of Standard Model-like couplings.
This article presents prospects for Lorentz-violation searches with $tbar{t}$ at the LHC and future colliders. After a short presentation of the Standard-Model Extension as a Lorentz-symmetry-breaking effective field theory, we will focus on $tbar{t}
The associated production of a single-top with opposite-sign same-flavor (OSSF) di-leptons, $pp to t ell^+ ell^-$ and $ pp to t ell^+ ell^- + j$ ($j=$light jet), can lead to striking tri-lepton $pp to ell^prime ell^+ ell^- + X$ and di-lepton $pp to e
We investigate the sensitivity to new physics of the process e+e- -> t bar{t} when the top polarization is analyzed using leptonic final states e+e- -> t bar{t} -> l+l- b bar{b} nu_l bar{nu}_l. We first show that the kinematical reconstruction of the
Information deformation and loss in jet clustering are one of the major limitations for precisely measuring hadronic events at future $e^-e^+$ colliders. Because of their dominance in data, the measurements of such events are crucial for advancing th
This report describes the studies performed for the Snowmass Top algorithms and detectors High Energy Frontier Study Group.