Abstract

Deep-inelastic electron scattering from 12C was measured at 60°, 90°, 130° and 145° until 560 MeV incident electron energy. Longitudinal-transverse separation was achieved for ¦q2μ¦ < 6 fm−2 and energy-loss ω < 360 MeV. The longitudinal sum rule exhibits 80 % of the strength predicted by single particle model. The measured cross section between the quasi-elastic peak and the free Δ peak is compared to different theoretical models. Mesonic exchange current in proton-neutron pairs seems to play an important role.

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