Why e+ e- to T Tbar is Different
Abstract
Unlike other examples of fermion pair production in e+ e- collisions, we show that top-quark pairs are produced in an essentially unique spin configuration in polarized e+ e- colliders at all energies. Since the directions of the electroweak decay products of polarized top-quarks are strongly correlated to the top-quark spin axis, this unique spin configuration leads to a distinctive topology for top-quark pair events which can be used to constrain anomalous couplings to the top-quark. A significant interference effect between the longitudinal and transverse W-bosons in the decay of polarized top-quarks is also discussed.
Cite
@article{arxiv.hep-ph/9807573,
title = {Why e+ e- to T Tbar is Different},
author = {Stephen Parke},
journal= {arXiv preprint arXiv:hep-ph/9807573},
year = {2007}
}
Comments
10 pages, 4 figures, Latex, epsf. Dedicated to Sid Drell on the occasion of the ``Sid Drell Symposium'' held at the Stanford Linear Accelerator Center, Stanford University, California on July 31, 1998