Quarkonia and the Pole Mass

A. H. Hoang; M. C. Smith; T. Stelzer; S. Willenbrock

doi:10.1103/PhysRevD.59.114014

Quarkonia and the Pole Mass

High Energy Physics - Phenomenology 2016-08-25 v2 High Energy Physics - Lattice

Authors: A. H. Hoang , M. C. Smith , T. Stelzer , S. Willenbrock

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Abstract

The pole mass of a heavy quark is ambiguous by an amount of order $\Lambda_{QCD}$ . We show that the heavy-quark potential, $V(r)$ , is similarly ambiguous, but that the total static energy, $2M_{pole}+V(r)$ , is unambiguous when expressed in terms of a short-distance mass. This implies that the extraction of a short-distance mass from the quarkonium spectrum is free of an ambiguity of order $\Lambda_{QCD}$ , in contrast with the pole mass.

Keywords

quark masses quarkonium

Cite

@article{arxiv.hep-ph/9804227,
  title  = {Quarkonia and the Pole Mass},
  author = {A. H. Hoang and M. C. Smith and T. Stelzer and S. Willenbrock},
  journal= {arXiv preprint arXiv:hep-ph/9804227},
  year   = {2016}
}