A new ZEUS measurement of inclusive-jet and dijet cross-sections in the Breit frame performed in deep-inelastic ep scattering data is presented. The data correspond to an integrated luminosity of about 82 ${ \rm pb^{ -1}}$ and are resctricted to the kinematic regime $Q^2 >$125${ { \rm GeV^2}}$ and -0.65$< \cos\gamma_{ had} <$0.65, where $Q^2$ is the photon virtuality and $\cos\gamma_{ had}$ corresponds to the polar angle of the hadronic system. The cross-sections are measured as functions of various kinematic and jet observables and are compared to NLO QCD calculations which describe the data well within all uncertainties.
Categories: hep-ex