Effective Field Theory for Nonstandard Top Quark Couplings
High Energy Physics - Phenomenology
2015-05-27 v2
Abstract
We present an effective-field-theory calculation of the effect of a dimension-six operator involving the top quark on precision electroweak data via a top-quark loop. We demonstrate the renormalizability, in the modern sense, of the effective field theory. We use the oblique parameter U to bound the coefficient of the operator, and compare with the bound derived from top-quark decay.
Keywords
Cite
@article{arxiv.1104.3122,
title = {Effective Field Theory for Nonstandard Top Quark Couplings},
author = {Nicolas Greiner and Scott Willenbrock and Cen Zhang},
journal= {arXiv preprint arXiv:1104.3122},
year = {2015}
}
Comments
10 pages, 3 figures