We provide a comprehensive global analysis of Run II top measurements at the LHC in terms of dimension-6 operators. A distinctive feature of the top sector as compared to the Higgs-electroweak sector is the large number of four-quark operators. We discuss in detail how they can be tested and how quadratic terms lead to a stable limit on each individual Wilson coefficient. Predictions for all observables are computed at NLO in QCD. Our SFitter analysis framework features a detailed error treatment and shows that theoretical uncertainties are a limiting factor.
@article{arxiv.1910.03606,
title = {O new physics, where art thou? A global search in the top sector},
author = {I. Brivio and S. Bruggisser and F. Maltoni and R. Moutafis and T. Plehn and E. Vryonidou and S. Westhoff and C. Zhang},
journal= {arXiv preprint arXiv:1910.03606},
year = {2020}
}