Effective-field-theory approach to top-quark production and decay

By Cen Zhang, S. Willenbrock. 2010

181 citations recorded by the source corpus.

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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c0f3e0939a32059263b4c65d42c84d9842cf1697

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In Nuclear and High Energy Physics

Citations in the corpus

Constraining top quark effective theory in the LHC Run II era (2015, background): “[46]) C(1) u = C (1)1331 qq + C 1331 uu + C (3)1331 qq C(2) u = C (8)1133 qu + C (8)3311 qu C(1) d = C (3)1133 qq + 1 4 C (8)3311 ud C(2) d = C (8)1133 qu + C (8)3311 qd .”
O new physics, where art thou? A global search in the top sector (2019, methodology): “In our analysis, we consider [15]”
Probing top quark neutral couplings in the Standard Model Effective Field Theory at NLO in QCD (2016, background): “They are the same set of seven operators that contribute to top pair production as discussed in [24, 25].”
Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators (2014, background): “The effects of the dimension-6 SMEFT on lepton flavor violation [22] and top quark processes [23, 24] have also been explored.”
Non-resonant new physics in top pair production at hadron colliders (2010, background): “[24] which however did not cover the corresponding phenomenological analysis.”