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Sun, BX; Lu, XF; Shen, PN; Zhao, EG; Sun, BX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
Effective photon mass in finite nuclei
Source PublicationHIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
KeywordHeavy-ion Collisions Positron Systems
AbstractThe 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.
2003
ISSN0254-3052
Volume27Issue:4Pages:337-340
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13328
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSun, BX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
Recommended Citation
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(4):337-340.
APA Sun, BX,Lu, XF,Shen, PN,Zhao, EG,&Sun, BX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China..(2003).Effective photon mass in finite nuclei.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,27(4),337-340.
MLA Sun, BX,et al."Effective photon mass in finite nuclei".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 27.4(2003):337-340.
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