A global approach to top-quark flavor-changing interactions

Abstract

We adopt a fully gauge-invariant effective-field-theory approach for parametrizing top-quark flavor-changing-neutral-current interactions. It allows for a global interpretation of experimental constraints (or measurements) and the systematic treatment of higher-order quantum corrections. We discuss some recent results obtained at next-to-leading-order accuracy in QCD and perform, at that order, a first global analysis of a subset of the available experimental limits in terms of effective operator coefficients. We encourage experimental collaborations to adopt this approach and extend the analysis by using all information they have prime access to.

17 pages, 12 figures, v2 matches published version

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Cited by in corpus (2)

• Automatic computations at next-to-leading order in QCD for top-quark flavor-changing neutral processes
• Flavour-changing top decays in the aligned two-Higgs-doublet model