Rapidity evolution of TMDs with running coupling
High Energy Physics - Phenomenology
2022-08-17 v2 High Energy Physics - Theory
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 (BLM) optimal scale setting. 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.
Cite
@article{arxiv.2205.03119,
title = {Rapidity evolution of TMDs with running coupling},
author = {Ian Balitsky and Giovanni A. Chirilli},
journal= {arXiv preprint arXiv:2205.03119},
year = {2022}
}
Comments
It matches the published version: appendix extended, 1 figure added, typos corrected; 40 pages, 9 figures