Higher-twist contributions in exclusive processes

Abstract

Using the renormalon technique, we estimate higher-twist contributions in deeply virtual Compton scattering and in hard exclusive ${\pi }^0$ leptoproduction.

Comments: 4 pages, 2 figures (Latex2e, Postscript, style file b98proc.cls included); talk given in the Baryons'98 conference, Bonn, Germany, Sept. 22-26, 1998