DIFFRACTIVE W AND Z PRODUCTION AT P-P(BAR) COLLIDERS AND THE POMERON PARTON CONTENT

High-p(perpendicular-to) jets in diffractive ppBAR events have reveale d a parton structure in the exchanged pomeron. Based on a model using a pomeron structure function dominated by either quarks or gluons we c alculate diffractive W/Z production and find observably large cross-se ctions at the Tevatron energy. The relative quark and gluon content ma y here be experimentally investigated and the x-shape of their density functions obtained to give new insights on the nature of the pomeron.