Abstract
Measurements of the ratio of the deuteron to proton electric form factors, $\frac{{G}_{E}(d)}{{G}_{E}(p)}$, were made from elastic electron-deuteron scattering to a precision of approximately 1% for the range of momentum transfers $0.10<~{q}^{2}<~0.8$ ${\mathrm{F}}^{\ensuremath{-}2}$. Within experimental errors the slope as obtained from the ratio $\frac{{G}_{E}(n)}{{G}_{E}(p)}$ agrees with the extrapolated thermal neutron-electron interaction slope when relativistic corrections and Feshbach-Lomon deuteron wave functions are applied. The deuteron radius was found to be 1.95 \ifmmode\pm\else\textpm\fi{} 0.02 F, the same as predicted by the Feshbach-Lomon calculation.
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