The Top Quark Decay Vertex in Standard Model Extensions
High Energy Physics - Phenomenology
2009-03-24 v1
Abstract
New physics interactions can affect the strength and structure of the vertex. We investigate the magnitudes and phases of "anomalous" contributions to this vertex in a two-Higgs doublet and the minimal supersymmetric extension of the standard model, and in a top-color assisted technicolor (TC2) model. While the magnitudes of the anomalous couplings remain below 1 percent in the first two models, TC2 interactions can reduce the left-chiral coupling by several percent.
Cite
@article{arxiv.0812.1643,
title = {The Top Quark Decay Vertex in Standard Model Extensions},
author = {Werner Bernreuther and Patrick Gonzalez and Martin Wiebusch},
journal= {arXiv preprint arXiv:0812.1643},
year = {2009}
}
Comments
Latex, 27 pages, 14 figures