高级检索

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

中子皮厚度测量探针对核物质状态方程的依赖性

孙小艳 方德清 马余刚

孙小艳 方德清 马余刚. 中子皮厚度测量探针对核物质状态方程的依赖性[J]. 原子核物理评论, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
引用本文: 孙小艳 方德清 马余刚. 中子皮厚度测量探针对核物质状态方程的依赖性[J]. 原子核物理评论, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
SUN Xiaoyan. Nuclear Equation of State Dependence of the Probe of Neutron Skin Thickness[J]. Nuclear Physics Review, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
Citation: SUN Xiaoyan. Nuclear Equation of State Dependence of the Probe of Neutron Skin Thickness[J]. Nuclear Physics Review, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008

中子皮厚度测量探针对核物质状态方程的依赖性

doi: 10.11804/NuclPhysRev.33.01.008

Nuclear Equation of State Dependence of the Probe of Neutron Skin Thickness

  • 摘要: 利用同位旋相关的量子分子动力学模型模拟了 4He + 208 Pb的碰撞反应,发现中子质子产额比与 208 Pb的中子皮之间存在很好的线性关联,中子质子产额比可以作为中子皮厚度测量的一个探针。选取量子分子动力学模型中核物质状态方程的两套不同势参数进行模拟,通过对比发现,中子皮的厚度测量探针中子质子产额比对核物质状态方程中选择软势和硬势非常敏感,相同反应条件下,软势比硬势计算所得的中子质子产额比要低。无论选择何种状态方程参数,中子质子产额比与中子皮之间都存在线性关联。

    The reaction system of 4He + 208Pb has been simulated by Isospin-dependent Quantum Molecu-lar Dynamics (IQMD) mode and it was found that the neutron-to-proton yield ratio (Rnp) has a good linearrelationship with the neutron skin thickness of 208Pb. Therefore Rnp could be taken as a probe of neutron skin thickness of 208Pb. Using two sets of parameters for the nuclear equation of state (EOS) in IQMD model, it shows that Rnp is sensitive to nuclear equation of state. The calculation results of Rnp with the soft EOS is lower than the hard EOS. No matter which kind of EOS parameter has been chosen, however, Rnp holds a good linear correlation with the neutron skin thickness.
  • 加载中
计量
  • 文章访问数:  643
  • HTML全文浏览量:  33
  • PDF下载量:  341
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-12-15
  • 录用日期:  2016-03-20
  • 修回日期:  2016-04-22
  • 刊出日期:  2016-03-20

中子皮厚度测量探针对核物质状态方程的依赖性

doi: 10.11804/NuclPhysRev.33.01.008

摘要: 利用同位旋相关的量子分子动力学模型模拟了 4He + 208 Pb的碰撞反应,发现中子质子产额比与 208 Pb的中子皮之间存在很好的线性关联,中子质子产额比可以作为中子皮厚度测量的一个探针。选取量子分子动力学模型中核物质状态方程的两套不同势参数进行模拟,通过对比发现,中子皮的厚度测量探针中子质子产额比对核物质状态方程中选择软势和硬势非常敏感,相同反应条件下,软势比硬势计算所得的中子质子产额比要低。无论选择何种状态方程参数,中子质子产额比与中子皮之间都存在线性关联。

The reaction system of 4He + 208Pb has been simulated by Isospin-dependent Quantum Molecu-lar Dynamics (IQMD) mode and it was found that the neutron-to-proton yield ratio (Rnp) has a good linearrelationship with the neutron skin thickness of 208Pb. Therefore Rnp could be taken as a probe of neutron skin thickness of 208Pb. Using two sets of parameters for the nuclear equation of state (EOS) in IQMD model, it shows that Rnp is sensitive to nuclear equation of state. The calculation results of Rnp with the soft EOS is lower than the hard EOS. No matter which kind of EOS parameter has been chosen, however, Rnp holds a good linear correlation with the neutron skin thickness.

English Abstract

孙小艳 方德清 马余刚. 中子皮厚度测量探针对核物质状态方程的依赖性[J]. 原子核物理评论, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
引用本文: 孙小艳 方德清 马余刚. 中子皮厚度测量探针对核物质状态方程的依赖性[J]. 原子核物理评论, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
SUN Xiaoyan. Nuclear Equation of State Dependence of the Probe of Neutron Skin Thickness[J]. Nuclear Physics Review, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008
Citation: SUN Xiaoyan. Nuclear Equation of State Dependence of the Probe of Neutron Skin Thickness[J]. Nuclear Physics Review, 2016, 33(1): 8-12. doi: 10.11804/NuclPhysRev.33.01.008

目录

    /

    返回文章
    返回