Rapidity evolution of TMDs with running coupling

Autor: Balitsky, Ian, Chirilli, Giovanni A.
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevD.106.034007
Popis: 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.
Comment: It matches the published version: appendix extended, 1 figure added, typos corrected; 40 pages, 9 figures
Databáze: arXiv