Constraints on neutron skin thickness in Pb-208 and density-dependent symmetry energy
文献类型：期刊论文
| 作者 | Dong, Jianmin1; Zuo, Wei1 ; Gu, Jianzhong2
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2015-03-13 |
| 卷号 | 91 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.91.034315 |
| 文献子类 | Article |
| 英文摘要 | Accurate knowledge about the neutron skin thickness Delta R-np in Pb-208 has far-reaching implications for different communities of nuclear physics and astrophysics. Yet, the novel lead radius experiment (PREX) did not yield any stringent constraint on Delta R-np recently. We employ a more practicable strategy to probe the neutron skin thickness of Pb-208 based on a high linear correlation between the Delta R-np and J - a(sym), where J and a(sym) are the symmetry energy (coefficient) of nuclear matter at saturation density and of Pb-208. An accurate J - a(sym) thus places a strong constraint on the Delta R-np. Compared with the parity-violating asymmetry A(PV) in the PREX, the reliably experimental information on the J - a(sym) is much more easily available thanks to the wealth of measured data on nuclear masses and decay energies. The density dependence of the symmetry energy is also well constrained with the J -a(sym). Finally, with a "tomoscan" method, we find that one just needs to measure the nucleon densities in Pb-208 starting from R-m = 7.61 +/- 0.04 fm to obtain the Delta R-np in hadron scattering experiments, regardless of its interior profile being hampered by strong absorption. |
| WOS关键词 | DROPLET-MODEL ; NUCLEI ; EQUATION ; STATE ; RADII ; STARS |
| 资助项目 | Funds for Creative Research Groups of China[11321064] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000351432600001 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/47903]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Dong, Jianmin |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.China Inst Atom Energy, Beijing 102413, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Jianmin,Zuo, Wei,Gu, Jianzhong. Constraints on neutron skin thickness in Pb-208 and density-dependent symmetry energy[J]. PHYSICAL REVIEW C,2015,91. |
| APA | Dong, Jianmin,Zuo, Wei,&Gu, Jianzhong.(2015).Constraints on neutron skin thickness in Pb-208 and density-dependent symmetry energy.PHYSICAL REVIEW C,91. |
| MLA | Dong, Jianmin,et al."Constraints on neutron skin thickness in Pb-208 and density-dependent symmetry energy".PHYSICAL REVIEW C 91(2015). |
入库方式： OAI收割
来源：近代物理研究所
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