Forward detectors are described together with the first physics results from Run II. Using new data and dedicated diffractive triggers, a measurement of single diffractive dijet production rate, with particular focus on the diffractive structure function of the antiproton, is discussed. Upper limits on the exclusive dijet and \chi ⁰_c production cross sections are also presented.

PACS numbers: 12.38.Qk, 13.85.-t, 14.80.Bn, 29.40.Vj