DOIAbstract
Hard QCD processes have been studied by measuring the di-jet event rate for deep inelastic scattering in the kinematic range 5<$Q^{2}<100 GeV^{2}$ and $10^{-4}<x<10^{-2}$. The jets were reconstructed using the cone algorithm in the hadronic center-of-mass frame in which the transverse momentum of the jets were required to be greater than 5 GeV. The result of the investigation is that using Leading Order QCD calculations together with pure DGLAP parton showering we can not reproduce the relative rate of hard di-jet events in DIS. To accomplish this the transverse momentum ordering in the parton ladder has to be broken as can be achieved by the inclusion of a component which resolves the photon in the DGLAP picture, or by using the Color Dipo...
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