Overview of top quark physics at the ep colliders

TL;DR

This paper reviews the potential of future electron-proton colliders like LHeC and FCC-eh for advancing top quark physics, including structure functions, couplings, and CP properties.

Contribution

It provides a comprehensive overview of top quark physics opportunities at proposed ep colliders, highlighting new measurements and sensitivities.

Findings

Potential to measure top structure functions and PDFs

Sensitivity to anomalous top couplings and CP phases

Enhanced understanding of top electroweak and Higgs interactions

Abstract

In this talk we present a short overview of top physics at the electron-proton (ep) colliders. Currently, the proposed ep collider is the Large Hadron Electron Collider (LHeC), which is a combination of 60 GeV electron beam and 7 TeV proton beam of the LHC tunnel. This may be extended to Future Circular electron-hadron Collider (FCC-eh), which features a 60 GeV (or higher) electron beam with the 50 TeV proton beam from the Future Circular hadron Collider (FCC-hh). Selected topics include but not limited to top structure function, top parton distribution functions, top spin polarization, top electric charge, measurement of $\rm V_{tb}$, anomalous $\rm tt\gamma$, ttZ, tbW, $\rm tq\gamma$, tqH couplings and CP phase of ttH coupling.