Abstract

The interference structure function ${\mathit{f}}_{01}$, the transverse structure function ${\mathit{f}}_{11}$, and the longitudinal structure function ${\mathit{f}}_{00}$ have been determined in a $^{2}\mathrm{H}$(e,e'p) experiment at a four-momentum transfer ${\mathit{Q}}^{2}$=0.21 (GeV/c${)}^{2}$. The ${\mathit{f}}_{00}$ and ${\mathit{f}}_{11}$ data are in agreement both with a nonrelativistic calculation that includes the effects of final-state interaction (FSI), meson-exchange currents, and isobar configurations, and with a relativistic calculation that only includes FSI effects. The ${\mathit{f}}_{01}$ data demonstrate the relevance of a relativistic approach even at this low value of the momentum transfer.

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