...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review, C >Charge-exchange dipole excitations in neutron-rich nuclei:-1h omega(0), anti-analog pygmy and anti-analog giant resonances
【24h】

Charge-exchange dipole excitations in neutron-rich nuclei:-1h omega(0), anti-analog pygmy and anti-analog giant resonances

机译：收费 - 富含中子核的偶极激发：-1hω（0），抗模拟侏儒和抗模拟巨型共振

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

The occurrence of low-lying charge-exchange non-spin-flip dipole modes below the giant resonance in neutronrich nuclei is predicted on the basis of nuclear density functional theory. The ground and excited states are described within the framework of the self-consistent Hartree-Fock-Bogoliubov theory and the proton-neutron quasiparticle-random-phase approximation employing a Skyrme-type energy density functional. The model calculations are performed for the spherical neutron-rich Ca, Ni, and Sn isotopes. It is found that the low-lying states appear sensitive to the shell structure associated with the -1h omega(0) excitation below the Gamow-Teller states. Furthermore, the pygmy resonance emerges below the giant resonance when the neutrons occupy the low-l (l = 2-3) orbitals analogous to the pygmy resonance seen in the electric-dipole response.
机译：基于核密密度函数理论，预测了低于核细胞核中巨核的低位电荷交换非旋转偶极偶联模式的发生。 地面和兴奋状态在自我一致的Hartree-Fock-Bogoliubov理论和采用Skyrme型能量密度函数的质子 - 中子Quasiparticle-阶段近似的框架内描述。 对球形中子的Ca，Ni和Sn同位素进行模型计算。 发现低洼状态对于与Gamow-Teller状态下方的-1h Omega（0）激励相关联的壳结构看起来敏感。 此外，当中子占据类似于电偶极响应中所见的侏儒共振的低L（L = 2-3）轨道时，侏儒共振在巨大的共振下方出现。

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