Pinning down top dipole moments with ultra-boosted tops

Abstract

We investigate existing and future hadron-collider constraints on the top dipole chromomagnetic and chromoelectric moments, two quantities that are expected to be modified in the presence of new physics. We focus first on recent measurements of the inclusive top pair production cross section at the Tevatron and at the Large Hadron Collider. We then analyse the role of top-antitop events produced at very large invariant masses, in the context of the forthcoming 13-14 TeV runs of the LHC, and at a future 100 TeV proton-proton collider. In this latter case, the selection of semileptonic decays to hard muons allows to tag top quarks boosted to the multi-TeV regime, strongly reducing the QCD backgrounds and leading to a significant improvement in the sensitivity to anomalous top couplings.

LaTeX 8 pages, 7 figures. Enlarged version to appear in PRD

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• Ultraboosted $Zt$ and $\gamma t$ production at the HL-LHC and FCC-hh
• Constraining New Physics with Single Top production at LHC
• New physics with boosted single top production at the LHC and future colliders
• Bounds on the absorptive parts of the chromomagnetic and chromoelectric dipole moments of the top quark from LHC data
• Top quark physics in the Large Hadron Collider era
• Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation
• Top Quark Physics at the High Luminosity LHC
• Top physics beyond the LHC
• Pulling the Higgs and Top needles from the jet stack with Feature Extended Supervised Tagging
• An EFT study of the $pp\to \bar{t}tZ(ll)h(bb)$ process at the FCC-$\mathbf{hh}$