DOI 10.1007/s100529900062
Axial contributions at the top threshold
J.H. Kühn1 - T. Teubner2
1 Institut für Theoretische Teilchenphysik, Universität Karlsruhe,
D-76128 Karlsruhe, Germany
2 Deutsches Elektronen-Synchrotron DESY, D-22603 Hamburg, Germany
Received: 11 March 1999 / Published online: 20 May 1999
Abstract
We calculate the contributions of the axial current to top quark pair
production in e+ e- annihilation at threshold. The QCD dynamics is taken
into account by solving the Lippmann-Schwinger equation for the P wave
production using the QCD potential up to two loops. We demonstrate that the
dependence of the total and differential cross section on the polarization
of the e+ and e- beams allows for an independent extraction of the
axial current induced cross section.
Copyright Springer-Verlag
