"Bi-modal" isoscalar giant dipole strength in Ni-58
- Nayak, B. K.
- Garg, U.
- Hedden, M.
- Koss, M.
- Li, T.
- Liu, Y.
- Rao, P. V. Madhusudhana
- Zhu, S.
- Itoh, M.
- Sakaguchi, H.
- Takeda, H.
- Uchida, M.
- Yasuda, Y.
- Yosoi, M.
- Fujimura, H.
- Fujiwara, M.
- Hara, K.
- Kawabata, T.
- Akimune, H.
- Harakeh, M. N.
DOIAbstract
The strength distribution of the isoscalar giant dipole resonance (ISGDR) in Ni-58 has been obtained over the energy range 10.5-49.5 MeV via extreme forward angle scattering (including 0 degrees) of 386 MeV alpha particles. We observe a "bi-modal" El strength distribution for the first time in an A <90 nucleus. The observed ISGDR strength distribution is in reasonable agreement with the predictions of a recent RPA calculation. (c) 2006 Elsevier B.V. All rights reserved
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