It is shown that the magnetic elastic form factor of ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$ can be accounted for by current nuclear theory. After making allowance for theoretical uncertainties regarding the high-$q$ behavior of the $M1\mathrm{}$ and $M3\mathrm{}$ form factors, the rms radius of the $1d_{\frac{5}{2}}$ neutron orbit is found to be 3.56 ± 0.09 fm. Quantitative information on the quenching of the $M3\mathrm{}$ and $M5\mathrm{}$ multipoles is also deduced.

NUCLEAR REACTIONS ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$ ($e$,$e$) elastic magnetic form factor. Comparison with calculations including core polarization, meson exchange currents. Deduced $d_{\frac{5}{2}}$ neutron radius.

• Received 14 September 1981

DOI:https://doi.org/10.1103/PhysRevC.25.695