Diffractive hadroproduction of dijets and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math>’s at the Fermilab Tevatron collider and the Pomeron structure function

Results from a phenomenological analysis of dijet and W hard diffractive hadroproduction at Fermilab Tevatron energies are reported. The theoretical framework employed here is a modified version of the Ingelman-Schlein approach which includes Dokhshitzer-Gribov-Lipatov-Altarelli-Parisi--evolved structure functions. Different from what has been achieved by the DESY $\mathrm{ep}$ HERA reactions, a reasonable overall description of such diffractive hadron processes is obtained only when a complex, quark-rich Pomeron structure function is employed in the calculation.