Excitation of Giant Resonances inNi58via Inelastic Scattering of Polarized Protons

Abstract

Measurements of the analyzing power and the differential cross section in the nuclear continuum for the reaction ${}_{}{}^{58}{}_{}{}^{}\mathrm{Ni}(p, p^{\prime })$ initiated by 60-MeV polarized protons provide strong evidence for a quadrupole ($E2\mathrm{}$) interpretation for the giant resonance at $E_x\approx \frac{63}{A^{\frac{1}{3}}}$ MeV. A resonance approximately 3 MeV lower in excitation energy has also been observed.