Inclusive Electron Scattering From Nuclei at x>1 and High Q^2

Physics – Nuclear Physics – Nuclear Experiment

Scientific paper

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PhD. Thesis, California Institute of Technology, 268 pages, 122 figures

Scientific paper

CEBAF experiment e89-008 measured inclusive electron scattering from nuclei in a Q^2 range between 0.8 and 7.3 (GeV/c)^2 for x_{Bjorken} \gtorder 1. The cross sections for scattering from D, C, Fe, and Au were measured. The C, Fe, and Au data have been analyzed in terms of F(y) to examine $y$-scaling of the quasielastic scattering, and to study the momentum distribution of the nucleons in the nucleus. The data have also been analyzed in terms of the structure function \nu W_2 to examine scaling of the inelastic scattering in x and \xi, and to study the momentum distribution of the quarks. In the regions where quasielastic scattering dominates the cross section (low Q^2 or large negative values of y), the data are shown to exhibit y-scaling. However, the y-scaling breaks down once the inelastic contributions become large. The data do not exhibit x-scaling, except at the lowest values of x, while the structure function does appear to scale in the Nachtmann variable, \xi.

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