• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Communications in Theoretical Physics >Shell Effect of Superheavy Nuclei in Self-consistent Mean-Field Models
【24h】

Shell Effect of Superheavy Nuclei in Self-consistent Mean-Field Models

机译：自洽均值场模型中超重核的壳效应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We analyze in detail the numerical results of superheavy nuclei in deformed relativistic mean-Geld model and deformed Skyrme-Hartree-Fock model. The common points and differences of both models are systematically compared and discussed. Their consequences on the stability of superheavy nuclei are explored and explained. The theoretical results are compared with new data of superheavy nuclei from GSI and from Dubna and reasonable agreement is reached. Nuclear shell effect in superheavy region is analyzed and discussed. The spherical shell effect disappears in some cases due to the appearance of deformation or superdeformation in the ground states of nuclei, where valence nucleons occupy significantly the intruder levels of nuclei. It is shown for the first time that the significant occupation of valence nucleons on the intruder states plays an important role for the ground state properties of superheavy nuclei. Nuclei are stable in the deformed or superdeformed configurations. We further point out that one cannot obtain the octupole deformation of even-even nuclei in the present relativistic mean-field model with the σ, ω and ρ mesons because there is no parity-violating interaction and the conservation of parity of even-even nuclei is a basic assumption of the present relativistic mean-field model.
机译：我们详细分析了变形相对论均值-场模型和变形Skyrme-Hartree-Fock模型中超重核的数值结果。系统地比较和讨论了两种模型的共同点和差异。探索和解释了它们对超重核稳定性的影响。将理论结果与来自GSI和Dubna的超重核的新数据进行了比较，并达成了合理的共识。分析和讨论了超重区的核壳效应。在某些情况下，由于在原子核的基态中出现了形变或超形变，球形壳效应消失了，在这些原子中价原子核显着占据了入侵者的原子核水平。首次表明，价态核子在入侵者态上的显着占据对于超重核的基态特性起着重要作用。核在变形或超变形构型中是稳定的。我们进一步指出，在目前的相对论平均场模型中，用σ，ω和ρ介子无法获得偶数核的八极形变，因为它没有违反奇偶性的相互作用并且没有偶数核的奇偶性守恒。是目前相对论平均场模型的基本假设。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号