Helicity Amplitudes for Single-Top Production
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
Single top quark production at hadron colliders allows a direct measurement of the top quark charged current coupling. We present the complete tree-level helicity amplitudes for four processes involving the production and semileptonic decay of a single top quark: W-gluon fusion, flavor excitation, s-channel production and W-associated production. For the first three processes we study the quality of the narrow top width approximation. We also examine momentum and angular distributions of some of the final state particles.
Cite
@article{arxiv.hep-ph/0003318,
title = {Helicity Amplitudes for Single-Top Production},
author = {J. van der Heide and E. Laenen and L. Phaf and S. Weinzierl},
journal= {arXiv preprint arXiv:hep-ph/0003318},
year = {2008}
}
Comments
27 pages, 7 figures, final version