| 用相对论平均场理论研究近滴线区原子核传统幻数的消失和新幻数的产生 |
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| 引用本文： | 丁斌刚,鲁定辉,张大立. 用相对论平均场理论研究近滴线区原子核传统幻数的消失和新幻数的产生[J]. 物理学报, 2007, 56(12): 6905-6910 |
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| 作者姓名： | 丁斌刚 鲁定辉 张大立 |
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| 作者单位： | 1. 湖州师范学院理学院,湖州,313000
2. 浙江大学近代物理中心,杭州,310027 |
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| 基金项目： | 国家自然科学基金;浙江省自然科学基金 |
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| 摘 要： | 提出了一种从理论上检验壳效应的方法.在考虑了由Bardeen，Cooper和Schrieffer提出的金属超导理论(BCS方法)的相对论平均场理论框架内，通过计算粒子数的涨落，发现涨落的大小和核的壳结构有紧密的关系，进而研究了滴线区一些传统幻数的消失和新幻数的产生.关键词：相对论平均场理论粒子数涨落幻数壳效应
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| 关 键 词： | 相对论平均场理论 粒子数涨落 幻数 壳效应 |
| 文章编号： | 1000-3290/2007/56(12)/6905-06 |
| 收稿时间： | 2007-01-31 |
| 修稿时间： | 2007-01-31 |
The disappearance of conventional magic numbers and the appearance of new numbers near drip-line region studied using relativistic mean-field plus BCS model |
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| Ding Bin-Gang,Lu Ding-Hui,Zhang Da-Li. The disappearance of conventional magic numbers and the appearance of new numbers near drip-line region studied using relativistic mean-field plus BCS model[J]. Acta Physica Sinica, 2007, 56(12): 6905-6910 |
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| Authors: | Ding Bin-Gang Lu Ding-Hui Zhang Da-Li |
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| Abstract: | A theoretical method which is applied to examine the shell effects is presented. Namely， by calculating the particle number fluctuation in the framework of the relativistic mean-field model including BCS method，we find that the size of the particle number fluctuation is related to the nuclear shell structure. Based on this method， the disappearance of conventional magic numbers and the presence of new magic numbers near drip-line region are studied. |
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| Keywords: | relativistic mean-field model particle number fluctuation magic number shell effect |
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