Systematics of the bimodal isoscalar giant dipole resonance
Systematics of the bimodal isoscalar giant dipole resonance
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DOI：
10.1103/physrevc.69.051301
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发表时间：
2004-05
影响因子：
3.1
通讯作者：
M. Uchida;H. Sakaguchi;M. Itoh;M. Yosoi;T. Kawabata;Y. Yasuda;H. Takeda;T. Murakami;S. Terashima;S. Kishi;U. Garg;P. Boutachkov;M. Hedden;B. Kharraja;M. Koss;B. K. Nayak;S. Zhu;M. Fujiwara;H. Fujimura;H. Yoshida;K. Hara;H. Akimune;M. Harakeh
中科院分区：
文献类型：
--
作者：
M. Uchida;H. Sakaguchi;M. Itoh;M. Yosoi;T. Kawabata;Y. Yasuda;H. Takeda;T. Murakami;S. Terashima;S. Kishi;U. Garg;P. Boutachkov;M. Hedden;B. Kharraja;M. Koss;B. K. Nayak;S. Zhu;M. Fujiwara;H. Fujimura;H. Yoshida;K. Hara;H. Akimune;M. Harakeh
利用 E-α=386 MeV 处的非弹性散射研究了 Zr-90、Sn-116、S-144 m 和 Pb-208 中等标量巨偶极子共振 (ISGDR) 的系统行为。应用多极分解分析从 theta(lab)= 0.64°-13.5° 处的 (alpha, alpha') 微分截面中提取巨共振的激发强度。讨论了 ISGDR 的双峰结构，并将其与 Hartree-Fock + 随机相位近似计算的最新理论结果进行了比较。
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.