Abstract
A combination is presented of all inclusive deep inelastic c ross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current e ± p scattering with zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. The data correspond to an integrated luminosity of about 1 fb −1 and span six orders of magnitude in negative four-momentum-transfer squared, Q 2 , and Bjorken x. The correlations of the systematic uncertainties were eva luated and taken into account for the combination. An extraction of xF γZ 3 and results on electroweak unification and scaling violations are also presented. The h igh-precision deep inelastic scattering cross sections presented here form a coherent set and they ar e a major legacy of HERA.
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