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| Preprint / hep-ph | arXiv:0902.3267 |
Seidel, Dirk
2009
Abstract: In these proceedings a recent calculation of the last missing piece of the two-loop O(alpha alpha(s)) corrections to gamma t anti-t vertex at the t anti-t threshold due to the exchange of a W boson and a gluon is summarised. The calculation constitutes a building block of the top quark threshold production cross section at electron positron colliders.
Note: Comments: LCWS08 proceedings
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