"Bi-modal" isoscalar giant dipole strength in 58Ni
"Bi-modal" isoscalar giant dipole strength in 58Ni
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DOI：
10.1016/j.physletb.2006.03.034
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发表时间：
2006-01
影响因子：
4.4
通讯作者：
B. K. Nayak;U. Garg;M. Hedden;M. Koss;T. Li;Y. Liu;P. V. M. Rao;S. Zhu;M. Itoh;H. Sakaguchi;H. Takeda;M. Uchida;Y. Yasuda;M. Yosoi;H. Fujimura;M. Fujiwara;K. Hara;T. Kawabata;H. Akimune;M. Dame;Kyoto University;Japan.;Rcnp;O. University;Cns;U. Tokyo;Konan University;Kvi;U. Groningen;The Netherlands.
中科院分区：
文献类型：
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作者：
B. K. Nayak;U. Garg;M. Hedden;M. Koss;T. Li;Y. Liu;P. V. M. Rao;S. Zhu;M. Itoh;H. Sakaguchi;H. Takeda;M. Uchida;Y. Yasuda;M. Yosoi;H. Fujimura;M. Fujiwara;K. Hara;T. Kawabata;H. Akimune;M. Dame;Kyoto University;Japan.;Rcnp;O. University;Cns;U. Tokyo;Konan University;Kvi;U. Groningen;The Netherlands.
通过386MeVα粒子的极前角散射(包括0°)，获得了58Ni中等标量巨偶极子共振的强度分布。我们首次在A<；90原子核中观察到了“双峰”的E_1强度分布。观测到的ISGDR强度分布与最近的RPA计算的预测是合理一致的。
The strength distribution of the isoscalar giant dipole resonance (ISGDR) in58Ni has been obtained over the energy range 10.5–49.5 MeV via extreme forward angle scattering (including 0°) of 386 MeV α particles. We observe a “bi-modal” E1 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.