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  1. Article

    Open Access

    Novel method to reliably determine the QCD coupling from Ruds measurements and its effects to muon g − 2 and \( \alpha \left({M}_Z^2\right) \) within the tau-charm energy region

    We present a novel method for precisely determining the QCD running coupling from Ruds measurements in electron-positron annihilation. When calculating the fixed-order perturbative QCD (pQCD) approximant of Ruds,...

    Jian-Ming Shen, Bing-Hai Qin, Jiang Yan, Sheng-Quan Wang in Journal of High Energy Physics (2023)

  2. Article

    Open Access

    Extending the predictive power of perturbative QCD using the principle of maximum conformality and the Bayesian analysis

    In addition to the evaluation of high-order loop contributions, the precision and predictive power of perturbative QCD (pQCD) predictions depends on two important issues: (1) how to achieve a reliable, converg...

    Jian-Ming Shen, Zhi-Jian Zhou, Sheng-Quan Wang in The European Physical Journal C (2023)

  3. Article

    Open Access

    QCD improved top-quark decay at next-to-next-to-leading order

    We analyse the top-quark decay at the next-to-next-to-leading order (NNLO) in QCD by using the Principle of Maximum Conformality (PMC) which provides a systematic way to eliminate renormalization scheme and sc...

    Rui-Qing Meng, Sheng-Quan Wang, Ting Sun, Chao-Qin Luo in The European Physical Journal C (2023)

  4. Article

    Open Access

    New analyses of event shape observables in electron-positron annihilation and the determination of αs running behavior in perturbative domain

    In this paper, we give comprehensive analyses for event shape observables in electron-positron annihilation by using the Principle of Maximum Conformality (PMC) which is a rigorous scale-setting method to elim...

    Sheng-Quan Wang, Chao-Qin Luo, **ng-Gang Wu in Journal of High Energy Physics (2022)

  5. Article

    Open Access

    Z-boson hadronic decay width up to \({{\mathcal {O}}}(\alpha _s^4)\) -order QCD corrections using the single-scale approach of the principle of maximum conformality

    In the paper, we study the properties of the Z-boson hadronic decay width by using the \(\mathcal {O}(\alpha _s^4)\) ...

    Xu-Dong Huang, **ng-Gang Wu, Xu-Chang Zheng, Qing Yu in The European Physical Journal C (2021)

  6. Article

    Open Access

    Revisiting the bottom quark forward–backward asymmetry \(A_\mathrm{{FB}}\) in electron–positron collisions

    The bottom quark forward–backward asymmetry \(A_\mathrm{{FB}}\)AFB is a key observable in electron–positron collisions at the \(Z^{0}\)Z0 peak. In this paper, we employ the Principle of Maximum Conformality (PMC)...

    Sheng-Quan Wang, Rui-Qing Meng, **ng-Gang Wu, Long Chen in The European Physical Journal C (2020)

  7. Article

    Open Access

    \(\bar{B}_s \rightarrow f_0(980)\) form factors and the width effect from light-cone sum rules

    In this paper we calculate the \(\bar{B}_s \rightarrow f_0(980)\)B¯s→f0(980) form factors from light-cone sum rules with B meson DAs. With adopting the quark–antiquark configuration of light scalar mesons, the hi...

    Shan Cheng, Jian-Ming Shen in The European Physical Journal C (2020)

  8. Article

    Open Access

    The \(\Upsilon (1S)\) leptonic decay using the principle of maximum conformality

    In the paper, we study the \(\Upsilon (1S)\) Υ ...

    Xu-Dong Huang, **ng-Gang Wu, Jun Zeng, Qing Yu in The European Physical Journal C (2019)

  9. Article

    Open Access

    Evaluation on treatment of sustained low-efficiency hemodialysis against patients with multiple organ dysfunction syndrome following wasp stings

    To evaluate the treatment of sustained low-efficiency hemodialysis (SLED) against patients with multiple organ dysfunction syndrome (MODS) following wasp stings.

    Ting-Ting Ye, Rong Gou, Ya-Ni Mao, Jian-Ming Shen, Dong He, Yan-Yan Deng in BMC Nephrology (2019)

  10. Article

    Open Access

    Extending the predictive power of perturbative QCD

    The predictive power of perturbative QCD (pQCD) depends on two important issues: (1) how to eliminate the renormalization scheme-and-scale ambiguities at fixed order, and (2) how to reliably estimate the contr...

    Bo-Lun Du, **ng-Gang Wu, Jian-Ming Shen in The European Physical Journal C (2019)

  11. Article

    Open Access

    The \(\eta _c\) decays into light hadrons using the principle of maximum conformality

    In the paper, we analyze the \(\eta _c\) η ...

    Bo-Lun Du, **ng-Gang Wu, Jun Zeng, Shi Bu in The European Physical Journal C (2018)

  12. Article

    Open Access

    Renormalization group improved pQCD prediction for Υ(1S) leptonic decay

    The complete next-to-next-to-next-to-leading order short-distance and bound-state QCD corrections to Υ(1S) leptonic decay rate Γ(Υ(1S) → ℓ+) has been finished by Beneke et al. [8]. Based on those improvements, ...

    Jian-Ming Shen, **ng-Gang Wu, Hong-Hao Ma, Huan-Yu Bi in Journal of High Energy Physics (2015)

  13. Article

    Open Access

    The Higgs boson inclusive decay channels \(H \rightarrow b\bar{b}\) and \(H \rightarrow gg\) up to four-loop level

    The principle of maximum conformality (PMC) has been suggested to eliminate the renormalization scheme and renormalization scale uncertainties, which are unavoidable for the conventional scale setting and are ...

    Sheng-Quan Wang, **ng-Gang Wu, Xu-Chang Zheng in The European Physical Journal C (2014)

  14. No Access

    Article

    Reanalysis of the BFKL Pomeron at the next-to-leading logarithmic accuracy

    We apply the principle of maximum conformality (PMC) to the Balitsky-Fadin-Kuraev-Lipatov (BFKL) Pomeron intercept at the next-to-leading logarithmic (NLL) accuracy. The PMC eliminates the conventional renorma...

    Xu-Chang Zheng, **ng-Gang Wu, Sheng-Quan Wang in Journal of High Energy Physics (2013)