Constraints on Non-standard Top Quark Couplings

Details Constraints on Non-standard Top Quark Couplings Constraints on Non-standard Top Quark Couplings

2012-01-31

arxiv.org/abs/1201.6670v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 2 figures

Scientific paper

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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