Various BSM models predict large deviations of the top electroweak couplings. Many examples will be given emphasizing the need for precise and model independent measurements of these couplings. Here I address the question of compatibility between theoretical predictions and the LEP/SLC/Tevatron constraints which, through loop effects, allow setting very significant constraints on these predictions. A Randall Sundrum inspired prediction will be discussed in more details. Finally the prospects offered by LHC and ILC measurements for top EW couplings are briefly reviewed.
@article{arxiv.1403.2893,
title = {Present and future constraints on top EW couplings},
author = {Francois Richard},
journal= {arXiv preprint arXiv:1403.2893},
year = {2014}
}