Abstract
Magnetic electron scattering cross sections for $^{25}\mathrm{Mg}$ and $^{93}\mathrm{Nb}$ have been measured by means of 180\ifmmode^\circ\else\textdegree\fi{} elastic electron scattering at momentum transfers from 0.8 to 2.2 ${\mathrm{fm}}^{\ensuremath{-}1}$. The $M1$, $M3$, and $M5$ form factors extracted from the data for $^{25}\mathrm{Mg}$ agree with shell model and Nilsson model calculations over most of the momentum transfer range. The $M3$ form factor is strongly suppressed with respect to the $M1$ and the $M5$. The measured relatively small quenching of the $M1$, $M3$, $M5$, $M7$, and $M9$ form factors of $^{93}\mathrm{Nb}$ are in good agreement with a shell model calculation of Gloeckner, and show that the magnetic effects in $^{93}\mathrm{Nb}$ are predominantly due to the single $1{g}_{\frac{9}{2}}$ proton.NUCLEAR REACTIONS $^{25}\mathrm{Mg}$($e$,$e$), $^{93}\mathrm{Nb}$($e$,$e$), $E=80\ensuremath{-}215$ MeV, $\ensuremath{\theta}=180\ifmmode^\circ\else\textdegree\fi{}$, measured $\ensuremath{\sigma}(E,180\ifmmode^\circ\else\textdegree\fi{})$; deduced magnetic moment from factors.
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