Abstract
Cross sections were measured for the near-threshold electrodisintegration of ${}^{3}\mathrm{He}$ at momentum transfer values of $q=2.4,$ $4.4,$ and $4.7{\mathrm{fm}}^{\ensuremath{-}1}.$ From these and prior measurements the transverse and longitudinal response functions ${R}_{T}$ and ${R}_{L}$ were deduced. Comparisons are made against previously published and new nonrelativistic $A=3$ calculations using the best available nucleon-nucleon NN potentials. In general, for $ql2{\mathrm{fm}}^{\ensuremath{-}1}$ these calculations accurately predict the threshold electrodisintegration of ${}^{3}\mathrm{He}.$ Agreement at increasing q demands consideration of two-body terms, but discrepancies still appear at the highest momentum transfers probed, perhaps due to the neglect of relativistic dynamics, or to the underestimation of high-momentum wave-function components.
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