The combined measurements of NC and CC DIS cross-sections at HERA

摘要

A combination is presented of the inclusive cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current deep-inelastic ep scattering at HERA. The combination uses data from unpolarized ep scattering taken during the HERA-I phase as well as measurements with longitudinally polarized electron or positron beams from the HERAII running period. The combination method takes the correlations of systematic uncertainties into account. The inclusion of the large HERA-II data set leads to an improved uncertainty especially at large four momentum transfer squared Q~2.