Off-forward parton distributions and impact parameter dependent parton structure

Abstract

The connection between parton distributions as a function of the impact parameter and off-forward parton distributions is discussed in the limit of vanishing skewedness parameter $\xi$, i.e. when the off-forwardness is purely transverse. It is also illustrated how to relate $\xi \ne 0$ data to $\xi =0$ data, which is important for experimental measurements of these observables.

Comments: 10 pages, sprocl.sty, talk given at workshop on Continuous Advances in QCD, Minneapolis, May 12-14, 2000