Recent progress in transverse-momentum dependent PDFs
I.O. Cherednikov, N.G. Stefanis
TL;DR
This paper reviews recent advances in understanding transverse-momentum dependent PDFs, focusing on their renormalization group properties and the structure of gauge links, crucial for semi-inclusive hadronic process descriptions.
Contribution
It provides new calculations of the leading-order anomalous dimension of TMD PDFs in the light-cone gauge and elucidates the structure of gauge links using RG properties.
Findings
Calculated the leading-order anomalous dimension in light-cone gauge.
Revealed the structure of gauge links via RG analysis.
Enhanced understanding of TMD PDFs for semi-inclusive processes.
Abstract
We present some recently obtained results on transverse-momentum dependent parton distribution functions (TMD PDFs), the latter being important ingredients for the description of semi-inclusive hadronic processes. Special attention is payed to the renormalization group (RG) properties of these objects. In particular, their leading-order anomalous dimension is calculated in the light-cone gauge. It is shown that the RG properties can be used to reveal, in the most economic way, the general structure of the gauge links entering the operator definition of TMD PDFs.
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Taxonomy
TopicsAtomic and Subatomic Physics Research · Magnetic confinement fusion research · Particle accelerators and beam dynamics