Systematic study of L≤3 giant resonances in Sm isotopes via multipole decomposition analysis

M. Itoh, H. Sakaguchi, M. Uchida, T. Ishikawa, T. Kawabata, T. Murakami, H. Takeda, T. Taki, S. Terashima, N. Tsukahara, Y. Yasuda, M. Yosoi, U. Garg, M. Hedden, B. Kharraja, M. Koss, B. K. Nayak, S. Zhu, H. Fujimura, M. FujiwaraK. Hara, H. P. Yoshida, H. Akimune, M. N. Harakeh, M. Volkerts

研究成果: Article査読

50 被引用数 (Scopus)

抄録

Background-free inelastic scattering spectra have been obtained for five Sm isotopes with 386-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 L≤3 isoscalar giant resonances have been extracted via a multipole decomposition analysis using angular distributions calculated in the framework of the density-dependent single-folding model. We observed a splitting of the giant monopole resonance because of its mixing with the giant quadrupole resonance. For the isoscalar giant dipole resonance, the observed effects of deformation are different for the low- and high-excitation-energy components. Evidence has been obtained for the theoretically predicted mixing between the isoscalar giant dipole resonance and the high energy octupole resonance.

本文言語English
論文番号064602
ページ(範囲)646021-6460210
ページ数5814190
ジャーナルPhysical Review C - Nuclear Physics
68
6
出版ステータスPublished - 2003 12月

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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