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Full-Text Articles in Quantum Physics
Rapidity Evolution Of Tmds With Running Coupling, Ian Balitsky, Giovanni A. Chirilli
Rapidity Evolution Of Tmds With Running Coupling, Ian Balitsky, Giovanni A. Chirilli
Physics Faculty Publications
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.