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A theoretical update on t t production near threshold

Adrian Signer

hep-pharXiv:hep-ph/0604032

Abstract

We present an evaluation of the tt cross section near threshold at next-to-next-to-leading logarithmic accuracy, using a two-step matching procedure. QED corrections are taken into account as well and are shown to be numerically important. Finally we give an outlook on how to further improve the theoretical predictions with particular emphasis on how to consistently include finite width effects.

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