Systematics of the bimodal isoscalar giant dipole resonance
- Uchida, M
- Sakaguchi, H
- Itoh, M
- Yosoi, M
- Kawabata, T
- Yasuda, Y
- Takeda, H
- Murakami, T
- Terashima, S
- Kishi, S
- Garg, U
- Boutachkov, P
- Hedden, M
- Kharraja, B
- Koss, M
- Nayak, BK
- Zhu, S
- Fujiwara, M
- Fujimura, H
- Yoshida, HP
- Hara, K
- Akimune, H
- Harakeh, MN
- Nayak, S.K.
Publication date
May 2004
DOIAbstract
The systematic behavior of the isoscalar giant dipole resonance (ISGDR) in Zr-90, Sn-116, S-144 m, and Pb-208 is studied with inelastic a scattering at E-alpha=386 MeV. Multipole-decomposition analysis is applied to extract the excitation strengths of giant resonances from the (alpha, alpha') differential cross sections at theta(lab)= 0.64degrees-13.5degrees. The bimodal structure of the ISGDR is discussed and compared with recent theoretical results from Hartree-Fock + random-phase-approximation calculations.</p
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