English

Three-loop matching of the vector current

High Energy Physics - Phenomenology 2014-03-05 v1

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.

Keywords

Cite

@article{arxiv.1401.3004,
  title  = {Three-loop matching of the vector current},
  author = {Peter Marquard and Jan H. Piclum and Dirk Seidel and Matthias Steinhauser},
  journal= {arXiv preprint arXiv:1401.3004},
  year   = {2014}
}

Comments

6 pages, 3 figures

R2 v1 2026-06-22T02:44:28.451Z