Compressional-mode giant resonances in deformed nuclei

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, BK Nayak, S. Zhu, H Fujimura, M FujiwaraK Hara, HP Yoshida, H Akimune, MN Harakeh, M Volkerts

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    29 Citations (Scopus)
    178 Downloads (Pure)

    Abstract

    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. 

    Original languageEnglish
    Article numberPII S0370-2693(02)02892-7
    Pages (from-to)58-63
    Number of pages6
    JournalPhysics Letters B
    Volume549
    Issue number1-2
    DOIs
    Publication statusPublished - 28-Nov-2002

    Keywords

    • MONOPOLE RESONANCE
    • COLLECTIVE STATES
    • DIPOLE RESONANCE
    • ALPHA-PARTICLES
    • ISOSCALAR
    • SCATTERING
    • EXCITATION
    • ENERGY
    • SN-116
    • PB-208

    Cite this