Two Loop QCD Vertices and Three Loop MOM $\beta$ functions
高能物理 - 唯象学
2009-10-31 v2
摘要
We present numerical results for the two loop QCD corrections to the ghost gluon vertex, the quark gluon vertex, and the triple gluon vertex in the massless limit at the symmetric point. We restrict ourselves to the tensor structures existing in the tree level. The corrections are used to examine different coupling constant definitions in momentum subtraction schemes and the corresponding three-loop functions.
引用
@article{arxiv.hep-ph/0008094,
title = {Two Loop QCD Vertices and Three Loop MOM $\beta$ functions},
author = {K. G. Chetyrkin and T. Seidensticker},
journal= {arXiv preprint arXiv:hep-ph/0008094},
year = {2009}
}
备注
LaTeX, 10 pages, corrected two references and some misprints