Gluon Polarization in $e^{+}{e}^{-}\to t\bar{t}G$

Abstract

We calculate the linear polarization of gluons radiated off top quarks produced in e^+e^- annihilations. For typical top pair production energies at the Next-Linear-Collider (NLC) the degree of linear polarization remains close to its soft gluon value of 100% over almost the whole energy spectrum of the gluon. The massive quark results are compared with the corresponding results for the massless quark case.

9 pages, 2 postscript figures, shortened and revised version