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Impact Parameter Dependent Parton Distributions and Off-Forward Parton Distributions for ζ 0

Matthias Burkardt

hep-pharXiv:hep-ph/0005108

Abstract

It is shown that off-forward parton distributions for ζ=0, i.e. where the initial and final state differ only in their transverse momenta, can be interpreted as a simultaneous measurement of the longitudinal momentum and transverse position (impact parameter) of partons in the infinite momentum frame.

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