Density and temperature dependence of nucleon-nucleon elastic cross section
文献类型：期刊论文
| 作者 | Li, QF; Li, ZX; Zhao, EG ; Li, QF , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2004 |
| 卷号 | 69期号:1页码:- |
| 关键词 | Relativistic Mean-field Microscopic Calculation Fragmentation Isotopes Isospin Matter Scalar Meson |
| ISSN号 | 0556-2813 |
| 英文摘要 | The in-medium neutron-proton, proton-proton (neutron-neutron) elastic scattering cross sections (sigma(np)*,sigma(pp(nn))*) are studied based on the effective Lagrangian of density dependent relativistic hadron theory in which the delta[a(0)(980)] meson is included. Our study shows that at low densities the sigma(np)* is about three to four times larger than sigma(pp(nn))* and at densities higher than the normal density the isospin effect is almost washed out. Because of coupling to delta meson the sigma(nn)* and sigma(pp)* are different in isospin asymmetric medium following the splitting of the proton and neutron masses. The isospin effect on the density dependence of the in-medium nucleon elastic cross section is dominantly contributed by the isovector delta and rho mesons. The temperature effect on the sigma(np)* and sigma(pp(nn))* is studied. It is shown that the temperature effect is weaker compared with the density effect but it becomes obvious as density increases. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000188747700057 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14150]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, QF , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, QF,Li, ZX,Zhao, EG,et al. Density and temperature dependence of nucleon-nucleon elastic cross section[J]. PHYSICAL REVIEW C,2004,69(1):-. |
| APA | Li, QF,Li, ZX,Zhao, EG,&Li, QF , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2004).Density and temperature dependence of nucleon-nucleon elastic cross section.PHYSICAL REVIEW C,69(1),-. |
| MLA | Li, QF,et al."Density and temperature dependence of nucleon-nucleon elastic cross section".PHYSICAL REVIEW C 69.1(2004):-. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。