The QCD renormalization group equation and the elimination of fixed-order scheme-and-scale ambiguities using the principle of maximum conformality

@article{Wu2019TheQR,
  title={The QCD renormalization group equation and the elimination of fixed-order scheme-and-scale ambiguities using the principle of maximum conformality},
  author={Xing-Gang Wu and Jian-Ming Shen and Bo-Lun Du and Xu-Dong Huang and Sheng-quan Wang and Stanley J. Brodsky},
  journal={Progress in Particle and Nuclear Physics},
  year={2019}
}
Abstract The conventional scale setting approach to fixed-order perturbative QCD (pQCD) predictions is based on a guessed renormalization scale, usually taking as the one to eliminate the large log-terms of the pQCD series, together with an arbitrary range to estimate its uncertainty. This ad hoc assignment of the renormalization scale causes the coefficients of the QCD running coupling at each perturbative order to be strongly dependent on the choices of both the renormalization scale and the… Expand
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