Oct 2018 - Sep 2019

Electroweak Sector Under Scrutiny: A Combined Analysis of LHC and Electroweak Precision Data

by Nuno Rosa Agostinho


We perform a comprehensive study of the Higgs couplings, gauge-boson couplings to fermions and triple gauge boson vertices. We work in the framework of effective theories including the effects of the dimension-six operators contributing to these observables. We determine the presently allowed range for the coefficients of these operators via a 20 parameter global fit to the electroweak precision data, as well as electroweak diboson and Higgs production data from LHC Run 1 and 2. We also discuss and quantify the effect of keeping the terms quadratic in the Wilson coefficients in the analysis.

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