Quark Transverse Parton Distribution at the Next-to-Next-to-Next-to-Leading Order

• Published in: Physical review letters Vol. 124; no. 9; p. 092001
• Main Authors: Luo, Ming-Xing, Yang, Tong-Zhi, Zhu, Hua Xing, Zhu, Yu Jiao
• Format: Journal Article
• Language: English
• Published: United States 06.03.2020

We report a calculation of the perturbative matching coefficients for the transverse-momentum-dependent parton distribution functions for quark at the next-to-next-to-next-to-leading order in QCD, which involves calculation of nonstandard Feynman integrals with rapidity divergence. We introduce a se...