Heavy Quarks at Threshold: Recent Developments

Matthias Steinhauser

Heavy Quarks at Threshold: Recent Developments

高能物理 - 唯象学 2007-05-23 v1

作者: Matthias Steinhauser

摘要

Recent developments in the treatment of a system of heavy quarks close to their production threshold are discussed. Particular emphasis is put on the next-to-next-to-next-to-leading order (N $^3$ LO) corrections to the energy levels and the wave function and their effect on the cross section $\sigma(e^+e^-\to t\bar{t})$ . Furthermore, the resummation of logarithmic corrections within the framework of potential non-relativistic QCD (pNRQCD) are considered.

关键词

quantum chromodynamics corrections next-to-leading order qcd heavy quark production

引用

@article{arxiv.hep-ph/0409016,
  title  = {Heavy Quarks at Threshold: Recent Developments},
  author = {Matthias Steinhauser},
  journal= {arXiv preprint arXiv:hep-ph/0409016},
  year   = {2007}
}

备注

5 pages,talk given at the LCWS Paris, France, April 2004

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