| Abstract | Deep-inelastic scattering events at low Q^2 with a high transverse momentum
jet, produced at small angles with respect to the proton beam in the
laboratory frame, are studied with the H1 experiment at HERA. Differential
cross sections and normalised distributions are measured as a function of the
azimuthal angle difference Delta phi between the forward jet and the
scattered electron. Events with a forward jet and an additional jet,
measured in the central region of the laboratory frame, allow to study the
Delta phi dependence in a phase space region, where a higher proportion
of forward jets from additional gluon emission is expected from models based
on BFKL type parton evolution. The measurements are compared to fixed
order DGLAP and BFKL calculations as well as predictions of Monte Carlo
generators based on different QCD evolution schemes. |
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