Theory of transverse-momentum parton densities: solving the puzzle of divergences

Details Theory of transverse-momentum parton densities: solving the puzzle of divergences Theory of transverse-momentum parton densities: solving the puzzle of divergences

2011-02-04

arxiv.org/abs/1102.0892v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure. Invited talk presented at the 40th International Symposium on Multiparticle Dynamics, 21 - 25 Sep 2010, Ant

Scientific paper

The current status of the theoretical understanding of the
transverse-momentum dependent parton densities (TMDs) is discussed. Special
attention is payed to the difference between the operator definitions of TMDs
proposed so far, the treatment of specific divergences, the geometry of the
gauge links, and the role of the soft factors.

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