Document Type

Article

Publication Date

2022

DOI

10.1103/PhysRevD.106.034007

Publication Title

Physical Review D

Volume

106

Issue

3

Pages

034007 (1-43)

Abstract

The scale of a coupling constant for rapidity-only evolution of transverse-momentum dependent (TMD) operators in the Sudakov kinematic region is calculated using the Brodsky-Lepage-Mackenzie optimal scale setting [S. J. Brodsky et al., Phys. Rev. D 28, 228 (1983).]. The effective argument of a coupling constant is halfway in the logarithmical scale between the transverse momentum and energy of TMD distribution. The resulting rapidity-only evolution equation is solved for quark and gluon TMDs.

Comments

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Original Publication Citation

Balitsky, I., & Chirilli, G. A. (2022). Rapidity evolution of TMDs with running coupling. Physical Review D, 106(3), 1-43, Article 034007. https://doi.org/10.1103/PhysRevD.106.034007

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