Compressional-mode giant resonances in deformed nuclei

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Background-free inelastic scattering spectra have been obtained for the Sm isotopes with 400 MeV α particles at forward angles (including 0°) to investigate the effect of deformation on the compressional-mode giant resonances. The strength distributions for the isoscalar giant resonances (L ≤ 3) have been extracted for the spherical nucleus 144Sm and the deformed nucleus 154Sm. We have observed that the effects of deformation are different for the low- and high-excitation-energy components of the isoscalar giant dipole resonance in 154Sm. Evidence for the theoretically predicted coupling between the isoscalar dipole resonance and the high-energy octupole resonance is reported. © 2002 Elsevier Science B.V. All rights reserved.




Itoh, M., Sakaguchi, H., Uchida, M., Ishikawa, T., Kawabata, T., Murakami, T., … Volkerts, M. (2002). Compressional-mode giant resonances in deformed nuclei. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 549(1–2), 58–63.

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