Three-loop matching of the vector current

Published 13 Jan 2014 in hep-ph | (1401.3004v1)

Abstract: We evaluate the three-loop corrections to the matching coefficient of the vector current between Quantum Chromodynamics (QCD) and non-relativistic QCD. The result is presented in the MSbar scheme where large perturbative corrections are observed. The implications on the threshold production of top quark pairs are briefly discussed.

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