Light-Front Densities for Transversely Polarized Hadrons

Details Light-Front Densities for Transversely Polarized Hadrons Light-Front Densities for Transversely Polarized Hadrons

2010-08-06

arxiv.org/abs/1008.1133v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures, 1 table; contribution to the proceedings of "The 4th Workshop on Exclusive Reactions at High Momentum Tran

Scientific paper

We discuss the recent interpretation of quark distribution functions in the plane transverse to the light-cone direction. Such a mapping is model independent and allows one to build multidimensional pictures of the hadron and to develop a semi-classical intuition of the quark dynamics. We comment briefly the results obtained from the Form Factors of the nucleon. A generalization to a target with arbitrary spin led to a set of preferred values for the electromagnetic coupling characterizing structureless particles. Generalized polarizabilities can also be interpreted in that frame as the distortion of the charge densities due to an external electromagnetic field. Finally, we present preliminary results for the Generalized Transverse-Momentum dependent Distributions which encode in principle the most complete information about quark distributions.

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