Transition densities of collective excitations in ${}_{}{}^{118}{}_{}{}^{}\mathrm{Sn}$

Electron scattering cross sections have been measured for the elastic and the first $2^{+}$,$3^{\mathrm{-}}$ and low-lying $4^{+}$ excitations in ${}_{}{}^{118}{}_{}{}^{}\mathrm{Sn}$. Forward angle data were taken for momentum transfers in the range 1.24<q<2.74 ${\mathrm{fm}}^{\mathrm{-}1}$ allowing the extraction of transition charge densities in a Fourier-Bessel analysis. Comparisons are made with microscopic calculations performed in the framework of the self-consistent finite Fermi system theory and quasiparticle phonon approach.