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Sun, BX; Lu, XF; Shen, PN; Zhao, EG; Sun, BX , Lab Phys Subatom & Cosmol, 53 Ave Martyrs, F-38026 Grenoble, France.
Effective photon mass in nuclear matter and finite nuclei
Source PublicationMODERN PHYSICS LETTERS A
KeywordHeavy-ion Collisions Positron
AbstractElectromagnetic 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.
2003
ISSN0217-7323
Volume18Issue:21Pages:1485-1492
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13265
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSun, BX , Lab Phys Subatom & Cosmol, 53 Ave Martyrs, F-38026 Grenoble, France.
Recommended Citation
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(21):1485-1492.
APA Sun, BX,Lu, XF,Shen, PN,Zhao, EG,&Sun, BX , Lab Phys Subatom & Cosmol, 53 Ave Martyrs, F-38026 Grenoble, France..(2003).Effective photon mass in nuclear matter and finite nuclei.MODERN PHYSICS LETTERS A,18(21),1485-1492.
MLA Sun, BX,et al."Effective photon mass in nuclear matter and finite nuclei".MODERN PHYSICS LETTERS A 18.21(2003):1485-1492.
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