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arXiv · 1401.3004

Three-loop matching of the vector current

Peter Marquard·Jan H. Piclum·Dirk Seidel·Matthias Steinhauser
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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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Peter Marquard, Jan H. Piclum, Dirk Seidel, Matthias Steinhauser. 2014-01-13. Three-loop matching of the vector current. https://doi.org/10.1103/physrevd.89.034027

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