Direct and Resolved Pomeron in Rapidity Gap Cross Sections

Abstract

We investigate the effect of a direct pomeron coupling to quarks on inclusive jet production in DIS and photoproduction. The direct pomeron coupling generates a point-like contribution to the diffractive part of the structure function $F_2$, which is analysed on the basis of the latest H1 and ZEUS data. Our model assumptions for the pomeron structure are consistent with the measured data.

Comments: 7 pages, latex, 8 figures appended as uuencoded file