Diffraction in DIS on nuclear targets

Abstract

We discuss the implications of a strong enhancement of diffraction for multiproduction in DIS off nuclear targets. The predicted effects are large and observable at HERA. We present the prediction of a large tensor structure function b_2(x) of the deuteron which does not vanish at small x.

4 pages, LaTeX, including 2 eps-figures, uses epsfig-macro, To be published in Proceedings of the Workshop on Future Physics at HERA