Effective photon mass in finite nuclei
文献类型：期刊论文
| 作者 | Sun, BX; Lu, XF; Shen, PN; Zhao, EG |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2003-04-01 |
| 卷号 | 27页码:337-340 |
| 关键词 | nuclear Fermi gas nuclear charge-density-distribution local gauge symmetry spontaneous breaking |
| ISSN号 | 0254-3052 |
| 英文摘要 | The electromagnetic field in nuclear Fermi gas and nuclei has been studied. Because in the nuclear Fermi gas the expectation value of the electric charge density operator is not zero, different from that in vacuum, the U (1) local gauge symmetry of electric charge is spontaneously broken in the nuclear Fermi gas, and consequently, the photon gains an effective mass. Perturbation calculation of the photon self-energy shows that the effective mass of photon is about 5.42MeV in the symmetric nuclear Fermi gas at the saturation density p(0) = 0.16fm(-3) and about 2.0MeV at the surface of U-238. Furthermore, it is concluded that it is just the two-body decay of a massive photon that causes the discovery of sharp lines of electron-positron pairs in low energy U-238 + Th-232 heavy ion collisions experiments. |
| WOS关键词 | HEAVY-ION COLLISIONS ; POSITRON ; SYSTEMS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000182298600013 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://119.78.100.186/handle/113462/38741]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Sun, BX |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 3.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 5.Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China 6.China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, BX,Lu, XF,Shen, PN,et al. Effective photon mass in finite nuclei[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2003,27:337-340. |
| APA | Sun, BX,Lu, XF,Shen, PN,&Zhao, EG.(2003).Effective photon mass in finite nuclei.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,27,337-340. |
| MLA | Sun, BX,et al."Effective photon mass in finite nuclei".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 27(2003):337-340. |
入库方式： OAI收割
来源：近代物理研究所
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。