The cross section for dijet photoproduction at high transverse energies is
presented as a function of the transverse energies and the pseudorapidities
of the jets. The measurement is performed using a sample of ep-interaction
s corresponding to an integrated luminosity of 6.3 pb(-1), recorded by the
ZEUS detector. Jets are defined by applying a k(T)-clustering algorithm to
the hadrons observed in the final state. The measured cross sections are co
mpared to next-to-leading order QCD calculations. In a kinematic regime whe
re theoretical uncertainties are expected to be small, the measured cross s
ections are higher than these calculations.