Four-Loop Decoupling Relations for the Strong Coupling

Y. Schroder; M. Steinhauser

doi:10.1088/1126-6708/2006/01/051

Four-Loop Decoupling Relations for the Strong Coupling

高能物理 - 唯象学 2009-11-11 v1

作者: Y. Schroder , M. Steinhauser

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摘要

We compute the matching relation for the strong coupling constant within the framework of QCD up to four-loop order. This allows a consistent five-loop running (once the $\beta$ function is available to this order) taking into account threshold effects. As a side product we obtain the effective coupling of a Higgs boson to gluons with five-loop accuracy.

关键词

qcd coupling constant radiative corrections in particle physics perturbative qcd

引用

@article{arxiv.hep-ph/0512058,
  title  = {Four-Loop Decoupling Relations for the Strong Coupling},
  author = {Y. Schroder and M. Steinhauser},
  journal= {arXiv preprint arXiv:hep-ph/0512058},
  year   = {2009}
}

备注

11 pages

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