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作者陶龙春,袁岑溪,楼建玲,杨晓菲,叶沿林（2019）在《Negative Parity States in 39Cl Configured by Crossing Major Shell Orbits》一文中研究指出：Traditional "magic numbers" were once regarded as immutable throughout the nuclear chart. However, unexpected changes were found for unstable nuclei around N = 20. With both proton and neutron numbers around the magic number of 20, the neutron-rich 39Cl isotope provides a good test case for the study of the quantumstate evolution across the major shell. In the present work, the negative parity states in 39Cl are investigated through the β decay spectroscopy of 39 S. Newly observed γ transitions together with a new state are assigned into the level scheme of 39Cl. The spin parity of 5/2- for the lowest negative parity state in 39Cl is reconfirmed using the combined γ transition information. These systematic observations of the negative parity states in 39Cl allow a comprehensive comparison with the theoretical descriptions. The lowest 5/2- state in 39Cl remains exotic in terms of comparisons with existing theoretical calculations and with the neighboring isotopes having similar single-particle configurations. Further experimental and theoretical investigations are suggested.
Abstract
Traditional "magic numbers" were once regarded as immutable throughout the nuclear chart. However, unexpected changes were found for unstable nuclei around N = 20. With both proton and neutron numbers around the magic number of 20, the neutron-rich 39Cl isotope provides a good test case for the study of the quantumstate evolution across the major shell. In the present work, the negative parity states in 39Cl are investigated through the β decay spectroscopy of 39 S. Newly observed γ transitions together with a new state are assigned into the level scheme of 39Cl. The spin parity of 5/2- for the lowest negative parity state in 39Cl is reconfirmed using the combined γ transition information. These systematic observations of the negative parity states in 39Cl allow a comprehensive comparison with the theoretical descriptions. The lowest 5/2- state in 39Cl remains exotic in terms of comparisons with existing theoretical calculations and with the neighboring isotopes having similar single-particle configurations. Further experimental and theoretical investigations are suggested.
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论文作者分别是来自Chinese Physics Letters的陶龙春,袁岑溪,楼建玲,杨晓菲,叶沿林，发表于刊物Chinese Physics Letters2019年06期论文，是一篇关于,Chinese Physics Letters2019年06期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自Chinese Physics Letters2019年06期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。