[en] We report on precision measurements of the elastic cross section for electron-proton scattering performed in Hall C at Jefferson Lab. The measurements were made at 28 unique kinematic settings covering a range in momentum transfer of 0.4 < Q² < 5.5 (/rm GeV/c)². These measurements represent a significant contribution to the world's cross section data set in the Q² range where a large discrepancy currently exists between the ratio of electric to magnetic proton form factors extracted from previous cross section measurements and that recently measured via polarization transfer in Hall A at Jefferson Lab

[en] We report on a detailed study of longitudinal strength in the nucleon resonance region, presenting new results from inclusive electron-proton cross sections measured at Jefferson Lab Hall C in the four-momentum transfer range 0.2 < Q² < 5.5 GeV². The data have been used to accurately perform over 170 Rosenbluth-type longitudinal/transverse separations. The precision R σ_L/σ_T data are presented here, along with the first separate values of the inelastic structure functions F₁ and F_L in this regime. The resonance longitudinal component is found to be significant. With the new data, quark-hadron duality is observed above Q² = 1 GeV² in the separated structure functions independently