  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-interactions
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 compared to
next-to-leading order QCD calculations. In a kinematic regime where theoretical
uncertainties are expected to be small, the measured cross sections are higher
than these calculations.
