Top quark longitudinal polarization near the threshold in l+ l- annihilation
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
We show that the longitudinal polarization of the top quarks produced in the annihilation of e+ e- or mu+ mu- into tbar t at energies near the threshold is not affected by the large Coulomb-type corrections, which greatly modify the total cross section. Thus the longitudinal polarization, although small, may provide an independent information on the mass and the width of the top quark, largely independent of the uncertainty in alpha_s.
Cite
@article{arxiv.hep-ph/9802234,
title = {Top quark longitudinal polarization near the threshold in l+ l- annihilation},
author = {B. M. Chibisov and M. B. Voloshin},
journal= {arXiv preprint arXiv:hep-ph/9802234},
year = {2009}
}
Comments
6 pages, LaTeX, no figures, added references, corrected typos