The ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ magnetic form factor has been measured for momentum transfers between 0.7 and 11 ${\mathrm{fm}}^{-2\mathrm{}}$ with improved precision over previous measurements. The charge form factor has been measured for momentum transfers less than 1 ${\mathrm{fm}}^{-2\mathrm{}}$. The charge radius was determined to be 1.935±0.03 fm, and the magnetic radius 1.935±0.04 fm. Comparisons are made with calculations which include meson exchange corrections and reasonable agreement is found.

NUCLEAR REACTIONS $d(e, e^{\prime })d$, $q^2=0.7\mathrm{} \mathrm{to} 11$ ${\mathrm{fm}}^{-2\mathrm{}}$, $\theta =160\mathrm{}°$, measured magnetic form factor; $q^2<1\mathrm{}$ ${\mathrm{fm}}^{-2\mathrm{}}$, $\theta =60\mathrm{}°$, measured charge radius.

• Received 4 June 1982

DOI:https://doi.org/10.1103/PhysRevC.27.71