Roles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy
文献类型：期刊论文
| 作者 | Jiang, W. Z. |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2006-11-02 |
| 卷号 | 642页码:28-33 |
| 关键词 | hypernuclei bulk matter neutron stars relativistic mean field model |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2006.09.020 |
| 英文摘要 | The role of the isoscalar hyperon A in probing the density dependence of the nuclear symmetry energy is studied in multi-A hypernuclei, hyperon-rich matter and neutron stars in relativistic models. Relationships between the properties of three types of objects and the neutron thickness in Pb-208 are established with respect to the isoscalar-isovector coupling that modifies the density dependence of the symmetry energy. The exotic isotopes far from the neutron drip line can be stabilized by filling in considerable A hyperons. The difference of the binding energy of multi-A hypernuclei from different models is attributed to different symmetry energies. The isovector potential together with the neutron thickness in multi-A hypernuclei investigated is very sensitive to the isoscalar-isovector coupling. The large sensitivity of the A hyperon fraction to the isoscalar-isovector coupling occurs at about 2-3(rho 0) in beta equilibrated hyperon-rich matter. In neutron stars with hyperonization, an on-off effect with respect to the isoscalar-isovector coupling exists for the neutron star radius. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS关键词 | MEAN-FIELD THEORY ; NEUTRON-STARS ; EQUATION ; STATE ; HYPERNUCLEI ; BINDING ; MATTER |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000241971400007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/26535]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Jiang, W. Z. |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, W. Z.. Roles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy[J]. PHYSICS LETTERS B,2006,642:28-33. |
| APA | Jiang, W. Z..(2006).Roles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy.PHYSICS LETTERS B,642,28-33. |
| MLA | Jiang, W. Z.."Roles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy".PHYSICS LETTERS B 642(2006):28-33. |
入库方式： OAI收割
来源：近代物理研究所
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