Effective photon mass in nuclear matter and finite nuclei
文献类型：期刊论文
| 作者 | Sun, BX; Lu, XF; Shen, PN; Zhao, EG |
| 刊名 | MODERN PHYSICS LETTERS A
 |
| 出版日期 | 2003-07-10 |
| 卷号 | 18页码:1485-1492 |
| 关键词 | photon interaction with hsdrons spontaneous breaking of gauge symmetries nuclear matter |
| ISSN号 | 0217-7323 |
| 英文摘要 | Electromagnetic field in nuclear matter and nuclei are studied. In the nuclear matter, because the expectation value of the electric charge density operator is not zero, different in vacuum, the U(l) local gauge symmetry of electric charge is spontaneously broken, and consequently, the photon gains an effective mass through the Higgs mechanism. An alternative way to study the effective mass of photon is to calculate the self-energy of photon perturbatively. It shows that the effective mass of photon is about 5.42 MeV in the symmetric nuclear matter at the saturation density rho(0) = 0.16 fm(-3) and about 2.0 MeV at the surface of U-238. It Seems that the two-body decay of a massive photon causes the sharp lines of electron-positron pairs in the low energy heavy ion collision experiments of U-238 + Th-232. |
| WOS关键词 | HEAVY-ION COLLISIONS ; POSITRON |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000184303600006 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 源URL | [http://119.78.100.186/handle/113462/38429]  |
| 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 nuclear matter and finite nuclei[J]. MODERN PHYSICS LETTERS A,2003,18:1485-1492. |
| APA | Sun, BX,Lu, XF,Shen, PN,&Zhao, EG.(2003).Effective photon mass in nuclear matter and finite nuclei.MODERN PHYSICS LETTERS A,18,1485-1492. |
| MLA | Sun, BX,et al."Effective photon mass in nuclear matter and finite nuclei".MODERN PHYSICS LETTERS A 18(2003):1485-1492. |
入库方式： OAI收割
来源：近代物理研究所
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