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Effective field theory approach to top-quark decay at next-to-leading order in QCD by Zhang, Cen is a scholarly article available to read on EtoBox.

What is Effective field theory approach to top-quark decay at next-to-leading order in QCD about?

We present analytical results for top-quark decay processes, in an effective field theory beyond the Standard Model, at next-to-leading order in QCD. We parametrize new physics effects using dimension-six operators, and consider all operators that give rise to non-standard interactions of the top quark. We investigate both the flavor-conserving and flavor-changing decay modes, including their two-body and three-body semi-leptonic final states. The QCD mixing among relevant operators are also taken into account. These results provide all information needed for a complete model-independent study of top-quark decay at next-to-leading order accuracy, paving the way to global analyses for new physics effects in an effective field theory approach.

Author

Zhang, Cen

Published

2014

Language

EN