Spectroscopy of 32Ne and the "Island of Inversion".
Spectroscopy of 32Ne and the "Island of Inversion".
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DOI：
10.1103/physrevlett.103.032501
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发表时间：
2009-06
影响因子：
8.6
通讯作者：
P. Doornenbal;H. Scheit;N. Aoi;S. Takeuchi;K. Li;E. Takeshita;H. Wang;H. Baba;S. Deguchi;N. Fukuda;H. Geissel;R. Gernhäuser;J. Gibelin;I. Hachiuma;Y. Hara;C. Hinke;N. Inabe;K. Itahashi;S. Itoh;D. Kameda;S. Kanno;Y. Kawada;N. Kobayashi;Y. Kondo;R. Krücken;T. Kubo;T. Kuboki;K. Kusaka;M. Lantz;S. Michimasa;T. Motobayashi;T. Nakamura;T. Nakao;K. Namihira;S. Nishimura;T. Ohnishi;M. Ohtake;N. Orr;H. Otsu;K. Ozeki;Y. Satou;S. Shimoura;T. Sumikama;M. Takechi;H. Takeda;K. Tanaka;K. Tanaka;Y. Togano;M. Winkler;Y. Yanagisawa;K. Yoneda;A. Yoshida;K. Yoshida;H. Sakurai
中科院分区：
文献类型：
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作者：
P. Doornenbal;H. Scheit;N. Aoi;S. Takeuchi;K. Li;E. Takeshita;H. Wang;H. Baba;S. Deguchi;N. Fukuda;H. Geissel;R. Gernhäuser;J. Gibelin;I. Hachiuma;Y. Hara;C. Hinke;N. Inabe;K. Itahashi;S. Itoh;D. Kameda;S. Kanno;Y. Kawada;N. Kobayashi;Y. Kondo;R. Krücken;T. Kubo;T. Kuboki;K. Kusaka;M. Lantz;S. Michimasa;T. Motobayashi;T. Nakamura;T. Nakao;K. Namihira;S. Nishimura;T. Ohnishi;M. Ohtake;N. Orr;H. Otsu;K. Ozeki;Y. Satou;S. Shimoura;T. Sumikama;M. Takechi;H. Takeda;K. Tanaka;K. Tanaka;Y. Togano;M. Winkler;Y. Yanagisawa;K. Yoneda;A. Yoshida;K. Yoshida;H. Sakurai
我们报告了在新建成的RIKEN放射性离子束工厂对N=22核~（32）Ne的首次光谱研究。在226 MeV/u ~（32）Ne束与碳靶的非弹性散射和245 MeV/u质子与~（33）Na的碰撞过程中，都观测到了能量为722（9）keV的单γ射线。这种转变被分配到第一个Jpi=2+状态的32 Ne到0+基态的去激发。通过与最先进的壳模型计算的比较解释，低激发能表明，“反转岛”延伸到至少N=22的Ne同位素。
We report on the first spectroscopic study of the N=22 nucleus 32Ne at the newly completed RIKEN Radioactive Ion Beam Factory. A single gamma-ray line with an energy of 722(9) keV was observed in both inelastic scattering of a 226 MeV/u 32Ne beam on a carbon target and proton removal from 33Na at 245 MeV/u. This transition is assigned to the deexcitation of the first Jpi=2+ state in 32Ne to the 0+ ground state. Interpreted through comparison with state-of-the-art shell-model calculations, the low excitation energy demonstrates that the "island of inversion" extends to at least N=22 for the Ne isotopes.