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arXiv · hep-ph/9710413

O(α_s^2) Corrections to Top Quark Production at $e^+e^-$ Colliders

R. Harlander·M. Steinhauser
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Abstract

In this article we evaluate mass corrections up to $O((m^2/q^2)^6)$ to the three-loop polarization function induced by an axial-vector current. Special emphasis is put on the evaluation of the singlet diagram which is absent in the vector case. As a physical application $O(α_s^2)$ corrections to the production of top quarks at future $e^+e^-$ colliders is considered. It is demonstrated that for center of mass energies $\sqrt{s} >~ 500$ GeV the inclusion of the first seven terms into the cross section leads to a reliable description.

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R. Harlander, M. Steinhauser. 1997-10-20. O(α_s^2) Corrections to Top Quark Production at $e^+e^-$ Colliders. https://doi.org/10.1007/s100520050129

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