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Constraints on Non-standard Top Quark Couplings

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arxiv 1201.6670 v3 pith:YCGKHTAW submitted 2012-01-31 hep-ph

Cen Zhang , Nicolas Greiner , Scott Willenbrock This is my paper · ORCID
classification hep-ph
keywords couplingsconstraintselectroweaknon-standardoperatorsquarkanomalousapproach
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We study non-standard top quark couplings in the effective field theory approach. All nine dimension-six operators that generate anomalous couplings between the electroweak gauge bosons and the third-generation quarks are included. We calculate their contributions at tree level and one loop to all major precision electroweak observables. The calculations are compared with data to obtain constraints on eight of these operators.

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