Compressional-mode giant resonances in deformed nuclei
- Itoh, M
- Sakaguchi, H
- Uchida, M
- Ishikawa, T
- Kawabata, T
- Murakami, T
- Takeda, H
- Taki, T
- Terashima, S
- Tsukahara, N
- Yasuda, Y
- Yosoi, M
- Garg, U
- Hedden, M
- Kharraja, B
- Koss, M
- Nayak, BK
- Zhu, S.
- Fujimura, H
- Fujiwara, M
- Hara, K
- Yoshida, HP
- Akimune, H
- Harakeh, MN
- Volkerts, M
DOIAbstract
Background-free inelastic scattering spectra have been obtained for the Sm isotopes with 400 MeV alpha particles at forward angles (including 0degrees) 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 Sm-144 and the deformed nucleus (SM)-S-154. 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 Sm-154. Evidence for the theoretically predicted coupling between the isoscalar dipole resonance and the high-energy octupole resonance is reported. </p
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