Unequal charge and matter deformations lengths for scattering to (3₁^- ) states in even-even nuclei

For direct reactions like inelastic excitations, the dynamics of the interactions are governed by structural parameters of participating nuclei, which determine the coupling to the entrance channel and influence resulting cross sections of all open channels in a system. In a recent study on ⁷Li + ¹²⁰Sn system, projectile like fragments were detected in an angular range of 25° -140°, using six sets of Si-detector telescopes, to measure the cross sections for elastic and inelastic channels at 7 Li beam energies of 28 and 30 MeV, at the BARC-TIFR Pelletron facility. Along with the elastic peak, the target inelastic states corresponding to 2₁⁺ quadrupole (λ=2) and 3₁^- octupole (λ=3) vibrational states, at 1.17 MeV and 2.40 MeV respectively, were found to be dominant