Measurement of dijet production in diffractive deep-inelastic scattering with a leading proton at HERA

Abstract

The cross section of diffractive deep-inelastic scattering ep→eXp is measured, where the system X contains at least two jets and the leading final state proton is detected in the H1 Forward Proton Spectrometer. The measurement is performed for fractional proton longitudinal momentum loss xℙ< 0. 1 and covers the range 0. 1< {pipe}t{pipe}<0. 7 GeV2 in squared four-momentum transfer at the proton vertex and 4 <1 GeV2 are in agreement with next-to-leading order QCD predictions based on diffractive parton distribution functions extracted from measurements of inclusive and dijet cross sections in diffractive deep-inelastic scattering. The data are also compared with leading order Monte Carlo models. © 2012 The Author(s).