Elastic and inelastic scattering of polarized protons from even n=82 nuclei near isobaric analog resonances |
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Authors: | H Clement G Graw R Zenger G Zöllner |
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Institution: | Tandemlabor der Universität Erlangen — Nürnberg, Erlangen, Germany |
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Abstract: | Excitation curves for the elastic and the inelastic scattering of polarized protons on the target nuclei 138Ba, 140Ce, 142Nd and 144Sm have been measured in the energy region of prominent isobaric analog resonances. A detailed analysis of the data is presented. Definite Jπ assignments are given for a number of parent analog states. Spectroscopic factors and amplitudes for configurations with the core in the ground state or in the 21+ excited state are derived from the elastic and inelastic proton decay amplitudes. They show consistency with sum rules including orthogonality conditions. Different methods for the-calculation of single particle decay widths have been applied. The qualitative agreement with present unified model calculations is remarkable; an overestimattion of the weak coupling structure, however, becomes apparent. |
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Keywords: | Nuclear reactions |
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