Recent Measurements of Longitudinal and Transverse Unpolarized Structure Functions, and Their Impact on Spin Asymmetry Measurements

We report on new measurements of the separated longitudinal and transverse proton structure functions in the resonance region (1 < W² < 4 GeV²) and spanning the four-momentum transfer range 0.2 < Q² < 4.0 (GeV/c)². The experiment, E94-110, measured the unpolarized inclusive electron-proton cross section, and was performed in Hall C at JLab. Results of the analysis of the data are presented, as well as a discussion of the impact on spin asymmetry measurements in the resonance region.