9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

TMD evolution as a double-scale evolution

12 Sep 2018, 15:20
25m
A4 (Polo degli Adelardi - Via Adelardi, 33)

A4

Polo degli Adelardi - Via Adelardi, 33

Via Adelardi, 33
Parallel Sessions 3D Structure of the Nucleon: TMDs 3D Structure of the Nucleon: TMDs

Speaker

Dr Alexey Vladimirov (Regensburg University)

Description

Evolution of transverse momentum dependent distributions (TMD evolution) is an evolution with respect to two scales: the renormalization and rapidity scales. The double scale evolution grants a freedom in the definition of physical observables, which naively could lead to ambiguous results. We show that the double-evolution picture has a natural interpretation in terms of evolution potential, and allows the definition of universal (independent on evolution definition) TMD distribution. Altogether, we present a renewed version of the TMD evolution theory, that incorporates also the traditional approach. We also present recent results of phenomenological extraction of TMD evolution.

Primary author

Dr Alexey Vladimirov (Regensburg University)

Presentation Materials