arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.3775nucl-ex
收藏

~(32)Ne光谱与反转岛

Spectroscopy of 32Ne and the Island of Inversion

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,… 展开作者

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. A. Orr, H. Otsu, K. Ozeki, Y. Satou, S. Shimoura, T. Sumikama, M. Takechi, H. Takeda, K. N. Tanaka, K. Tanaka, Y. Togano, M. Winkler, Y. Yanagisawa, K. Yoneda, A. Yoshida, K. Yoshida, H. Sakurai

摘要:

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。这种跃迁被认为是32 Ne中第一个J^pi = 2+态到0+基态的去激发。通过与最先进的壳层模型计算的比较来解释,低激发能表明Ne同位素的反转岛延伸到至少N=22。

英文摘要:

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 de-excitation of the first J^pi = 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑