Elastic and inelastic scattering of 240-MeVLi6ions fromCa40andCa48and tests of a systematic optical potential

Abstract

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 ${4}^{\ifmmode^\circ\else\textdegree\fi{}}\ensuremath{\leqslant}{\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}\ensuremath{\leqslant}{40}^{\ifmmode^\circ\else\textdegree\fi{}}$. 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 ${3}^{\ensuremath{-}}$ 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.