Combination of H1 and ZEUS Deep Inelastic e+- p Scattering Cross Sections

The previously published data by the H1 and
the ZEUS collaborations of neutral and charged current 
inclusive cross-sections for $e^+p$ and $e^-p$ scattering at HERA are
combined.
 The new model independent method of combining cross section measurements
takes
 into account the systematic error correlations in a coherent approach
leading 
to a significantly reduced overall cross section uncertainty by cross 
calibrating the various data sets. The analysis is restricted to data with
momentum transfers $Q^2 \geq 1.5$\,GeV$^2$ and the
running period HERA I, specifically between 1996-2000.