5 papers
Analysis of the Pion Electromagnetic Form Factor with Next-to-Next-to-Leading Order QCD Corrections
Sheng-Quan Wang, Zuo-Fen Liao, Jian-Ming Shen +5
NNLO QCD corrections for the pion electromagnetic form factor at large momentum transfer have been recently performed in [Phys. Rev. Lett. 132, 201901 (2024); Phys. Rev. Lett. 134,…
Self-consistent analysis for the process
Sheng-Quan Wang, Zhu-Yu Ren, Jian-Ming Shen +3
The next-to-next-to-leading-order (NNLO) pQCD predictions for both the decay width and the transition form factor in the process, based on nonrelativistic QCD (…
Renormalization Scale Setting for Heavy Quark Pair Production in Annihilation near the Threshold Region
Sheng-Quan Wang, Stanley J. Brodsky, Xing-Gang Wu +2
Heavy fermion pair production in annihilation is a fundamental process in hadron physics and is of considerable interest for various phenomena. In this paper, we will appl…
PMC: Infinite-Order Scale-Setting using the Principle of Maximum Conformality, A Remarkably Efficient Method for Eliminating Renormalization Scale Ambiguities for Perturbative QCD
Leonardo Di Giustino, Stanley J. Brodsky, Sheng-Quan Wang +1
We identify a property of renormalizable SU(N)/U(1) gauge theories, the intrinsic Conformality (), which underlies the scale invariance of physical observables and leads to a…
Novel Method for the Precise Determination of the QCD Running Coupling from Event Shapes Distributions in Electron-Positron Annihilation
Sheng-Quan Wang, Stanley J. Brodsky, Xing-Gang Wu +2
We present a novel method for precisely determining the running QCD coupling constant over a wide range of from event shapes for electron-positron annihilation mea…