eta mesons in nuclear matter
文献类型：期刊论文
| 作者 | Zhong, XH; Peng GX(彭光雄) ; Peng, GX; Li, L; Ning, PZ
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2006 |
| 卷号 | 73期号:1页码:15205 |
| 通讯作者 | Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China |
| 英文摘要 | The eta-nucleon (eta N) interactions are deduced from the heavy-baryon chiral perturbation theory to the next-to-leading-order terms. Combining the relativistic mean-field theory for nucleon system, we have studied the in-medium properties of the eta meson. We find that all the elastic-scattering eta N interactions come from the next-to-leading-order terms. The eta N sigma term is found to be about 280 +/- 130 MeV. The off-shell terms are also important to the in-medium properties of the eta meson. On application of the latest determination of the eta N scattering length, the ratio of the eta-meson effective mass to its vacuum value is near 0.84 +/- 0.015, whereas the optical potential is about -(83 +/- 5) MeV, at the normal nuclear density. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235009800057 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240464]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhong, XH,Peng GX,Peng, GX,et al. eta mesons in nuclear matter[J]. PHYSICAL REVIEW C,2006,73(1):15205. |
| APA | Zhong, XH,彭光雄,Peng, GX,Li, L,&Ning, PZ.(2006).eta mesons in nuclear matter.PHYSICAL REVIEW C,73(1),15205. |
| MLA | Zhong, XH,et al."eta mesons in nuclear matter".PHYSICAL REVIEW C 73.1(2006):15205. |
入库方式： OAI收割
来源：高能物理研究所
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