Abstract
Isoscalar giant resonances in $^{90,92,94}\text{Zr}$ have been studied with inelastic scattering of 240 MeV $\ensuremath{\alpha}$ particles at small angles including ${0}^{\ensuremath{\circ}}$. A significant fraction of the energy-weighted sum rule (EWSR) was found for isoscalar $E0$ (106%,103%,106%), $E1$ (64%,53%,96%), $E2$ (92%,93%,67%) and high energy octupole $E3$ (59%,69%,58%) resonances in $^{90,92,94}\text{Zr}$ respectively. Hartree-Fock random phase approximation (RPA) calculations were made for each multipole using the KDE0v1 Skyrme-type effective nucleon-nucleon interaction and the results are compared to the experimental distributions.
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