...
首页> 外文期刊>Physical review, C >Deformation-induced splitting of the isoscalar E0 giant resonance: Skyrme random-phase-approximation analysis
【24h】

Deformation-induced splitting of the isoscalar E0 giant resonance: Skyrme random-phase-approximation analysis

机译:isoscalar e0巨大共振的变形诱导分裂:斯基尔梅随机相位近似分析

获取原文
获取原文并翻译 | 示例
           

摘要

The deformation-induced splitting of isoscalar giant monopole resonance (ISGMR) is systematically analyzed in a wide range of masses covering medium, rare-earth, actinide, and superheavy axial deformed nuclei. The study is performed within the fully self-consistent quasiparticle random-phase-approximation method based on the Skyrme functional. Two Skyrme forces, one with a large (SV-bas) and one with a small (SkP) nuclear incompressibility, are considered. The calculations confirm earlier results that, because of the deformation-induced E0-E2 coupling, the isoscalar E0 resonance attains a double-peak structure and significant energy upshift. Our results are compared with available analytic estimations. Unlike earlier studies, we get a smaller energy difference between the lower and upper peaks and thus a stronger E0-E2 coupling. This in turn results in more pumping of E0 strength into the lower peak and more pronounced splitting of ISGMR. We also discuss widths of the peaks and their negligible correlation with deformation.
机译:在各种肿块覆盖介质,稀土,致动脉和过度轴向变形核中系统地分析了isoscalar巨型单极共振(ISGMR)的变形诱导的分裂。该研究基于Skyrme功能的完全自我一致的Quasiparticle随机相位逼近方法进行。考虑了两个狼尔梅力,一个具有大(SV-BAS)和一个具有小(SKP)核不可压缩的力量。计算证实了前面的结果,由于变形诱导的E0-E2耦合,ISOSCALA E0共振率达到了双峰结构和显着的能量升档。我们的结果与可用的分析估算进行了比较。与早期的研究不同,我们在下峰和上峰之间获得较小的能量差,因此是更强大的E0-E2耦合。这反过来导致e0强度的更多泵送到较低的峰值和更明显的ISGMR分裂中。我们还讨论了峰值的宽度及其与变形的可忽略不计的相关性。

著录项

  • 来源
    《Physical review, C》 |2016年第6期|共9页
  • 作者单位

    Charles Univ Prague Inst Particle &

    Nucl Phys CZ-18000 Prague 8 Czech Republic;

    Joint Inst Nucl Res Theoret Phys Lab Dubna 141980 Moscow Region Russia;

    Charles Univ Prague Inst Particle &

    Nucl Phys CZ-18000 Prague 8 Czech Republic;

    Joint Inst Nucl Res Theoret Phys Lab Dubna 141980 Moscow Region Russia;

    Univ Erlangen Nurnberg Inst Theoret Phys 2 D-91058 Erlangen Germany;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
  • 关键词

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