Effective-Field-Theory Approach to Top-Quark Production and Decay

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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24 pages, 12 figures; references added, typos corrected

Scientific paper

10.1103/PhysRevD.83.034006

We discuss new physics in top-quark interactions, using an effective field theory approach. We consider top-quark decay, single top production, and top-quark pair production. We identify 15 dimension-six operators that contribute to these processes, and we compute the deviation from the Standard Model induced by these operators. The results provide a systematic way of searching for (or obtaining bounds on) physics beyond the Standard Model.

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