Speaker
Wojtek Slominski
Description
The recent results on diffractive dijet production measured with the
ZEUS detector in ep collisions at HERA, are presented. Two sets of data,
corresponding to highly virtual (DIS) and nearly real photon (PHP), are
shown. The results are compared to the NLO QCD predictions with the
emphasis on possible observation of the factorisation breaking for soft
photons. The uncertainties of 20-30% of the NLO predictions are pointed
out, Within these uncertainties the data are compatible with no
factorisation breaking although some small suppression <~ 20% is not
excluded.
