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Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Structure of the Nucleon: TMDs (A. Bacchetta, J. Drachenberg and B. Parsamyan)
TMD evolution as a double-scale evolution
A. Vladimirov
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Pre-published on: 2019 August 22
Published on: 2019 August 23
Evolution of transverse momentum distributions (TMDs) is given by a pair of equations, which dictates the dependence on scales of rapidity and collinear factorizations. In this way, the evolution of TMDs takes a place in the two-dimension space of scales. It grants unique and non-trivial opportunities to simplify the task of TMD evolution and to disentangle perturbative series entering the TMD cross-section. In this talk, I present recent studies of the structure of double-scale evolution, the zeta-prescription and the definition of optimal TMDs.
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