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)
