A. Cooper-Sarkar, E. Tassi, S. Glazov, V. Radescu et al.
Abstract
Deep inelastic scattering cross section measurements previously published
by the H1 and ZEUS collaborations are combined taking into account correlations
due to the systematic uncertainties. The combination is based on the complete
set of HERA-I analyses. The combined data is used as the sole input for a
next-to-leading order QCD parton distribution function fit. The resulting
HERAPDFs have reduced uncertainties compared to separate analyses of the
H1 and ZEUS experiments.