Combined Measurement of the Inclusive e+ p Scattering Cross
        Sections at HERA for Reduced Proton Beam Energy Runs
         and Determination of Structure Function FL 

                   H1 and ZEUS Collaborations

                        Abstract                       

A combination of the inclusive deep inelastic cross sections measured by 
the H1 and ZEUS Collaborations for ep scattering with nominal and reduced 
proton-beam energies, Ep=920 GeV, Ep=460 GeV and 575 GeV, 
is presented. The combination method used takes the correlations of 
systematic uncertainties into account, resulting in improved accuracy. 
From the combined data the proton structure function, FL, is extracted in 
the region of 2.5 < Q2< 800 GeV2.