Elastic and inelastic scattering of 240-MeV ${}^6\mathrm{Li}$ particles from ${}^{40}\mathrm{Ca}$ and ${}^{48}\mathrm{Ca}$ were measured with the multipole-dipole-multipole spectrometer from $4^{°}⩽{\theta }_{\mathrm{c}.\mathrm{m}.}⩽{40}^{°}$. Optical potential parameters were obtained by fitting the elastic-scattering data with the double-folding model using the density-dependent M3Y $\mathit{NN}$ effective interaction and $B(E2)$ and $B(E3)$ values obtained for low-lying $2^{+}$ and $3^{-}$ states agreed with the adopted values. The results are compared with those obtained using potentials derived from the systematics of potentials previously obtained for ${}^{24}\mathrm{Mg}$, ${}^{28}\mathrm{Si}$, ${}^{58}\mathrm{Ni}$, and ${}^{90}\mathrm{Zr}$. Cross sections for excitation of giant resonances were also calculated with the potentials obtained.

• Received 24 February 2010

DOI:https://doi.org/10.1103/PhysRevC.81.044612