Work

Probing Top-Quark–Electron Interactions at Future Colliders

Year: 2025

Type: article

Abstract: Top quark interactions offer a window into possible new high scale physics and many models of new physics predict that the top quark interactions will deviate significantly from those predicted by the standard model. We present an analysis of the experimental restrictions on anomalous 4-fermion e^{+}e^{-}tt[over ¯] operators that is accurate to next-to-leading order (NLO) in both the electroweak and QCD interactions within the standard model effective field theory framework. At NLO, there is sensitivity to an extended set of anomalous interactions beyond those probed at leading order. A comparison of current limits from electroweak precision observables, along with expected future limits from Drell-Yan and tt[over ¯]e^{+}e^{-} production at the high luminosity LHC, from deep inelastic scattering at the EIC, and from projected sensitivities at the future FCC-ee and CEPC machines demonstrates that each of these programs extends the precision understanding of the interactions of top quarks.

Source: Physical Review Letters

DOI: 10.1103/7z6x-ygqq

Authors: Luigi Bellafronte, Sally Dawson, Pier Paolo Giardino, Hongkai Liu

Institutions: Florida State University, Brookhaven National Laboratory, Universidad Autónoma de Madrid

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750