Abstract
Angular distributions of the cross section for the elastic and inelastic scattering of protons have been measured at four isobaric analog resonances of the /sup 144/Sm+p system and at two off-resonance energies. Spectroscopic information about the (7/2)/sub 1//sup -/, (3/2)/sub 1//sup -/, (1/2)/sub 1//sup -/, and (5/2)/sub 1//sup -/ states of the parent nucleus /sup 145/Sm is extracted, with the core /sup 144/Sm in the states 0/sub 1//sup +/, 2/sub 1//sup +/, 3/sub 1//sup -/, 4/sub 1//sup +/, and 2/sub 2//sup +/. The analysis includes direct and fluctuating nonresonant processes. The direct scattering amplitude is obtained from a coupled channel treatment. Different methods for the calculations of the single-particle widths have been employed. The experimental spectroscopic amplitudes were compared with nuclear structure calculations based on the particle-vibrator model. Both the liquid drop model and the quasi-particle random phase approximation were used to describe the vibrator. The calculations based on the latter model show good agreement with the experimental results.
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