  The production of dijets is measured in diffractive deep-inelastic scattering
at HERA. The data were recorded with the H1 detector at DESY in the years
2003-2007. Diffractive events are selected by requiring a gap in the rapidity
distribution of the hadronic systen, where no particles are produced. Two jets
are selected with transverse momenta in the hadronic-centre-of-mass system
larger than 4 and 5.5GeV, respectively. Cross sections are measured single- and
doubledifferentially in various kinematic quantities. The data are found to be
in good agreement with NLO QCD calculations based on diffractive parton
densities determined frominclusive diffractive cross section measurements.

High Energy Physics - Experiment