A new analysis of the pQCD contributions to the electroweak parameter $\rho$ using the single-scale approach of principle of maximum conformality

@inproceedings{Yu2021ANA,
  title={A new analysis of the pQCD contributions to the electroweak parameter \$\rho\$ using the single-scale approach of principle of maximum conformality},
  author={Qing Yu and Hua Zhou and Jiang Yan and Xu-Dong Huang and Xing-Gang Wu},
  year={2021}
}
  • Qing Yu, Hua Zhou, +2 authors Xing-Gang Wu
  • Published 2021
  • Physics
It has been observed that conventional renormalization scheme and scale ambiguities for the pQCD predictions can be eliminated by using the principle of maximum conformality (PMC). However, being the intrinsic nature of any perturbative theory, there are still two types of residual scale dependences due to uncalculated higher-order terms. In the paper, as a step forward of our previous work [Phys.Rev.D 89,116001(2014)], we reanalyze the electroweak ρ parameter by using the PMC single-scale… Expand

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