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arXiv · 1910.03606

O new physics, where art thou? A global search in the top sector

I. Brivio·S. Bruggisser·F. Maltoni·R. Moutafis·T. Plehn·E. Vryonidou·S. Westhoff·C. Zhang
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Abstract

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.

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I. Brivio, S. Bruggisser, F. Maltoni, R. Moutafis, T. Plehn, E. Vryonidou, S. Westhoff, C. Zhang. 2019-10-08. O new physics, where art thou? A global search in the top sector. https://doi.org/10.1007/jhep02(2020)131

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