The Restoration of Symmetry and Plasmon Effects at High Temperature and Density in the Weinberg-Salam Model

Hou Defu; Li Jiarong

Chinese Physics C> 1991, Vol. 15> Issue(S2) : 207-217

The Restoration of Symmetry and Plasmon Effects at High Temperature and Density in the Weinberg-Salam Model

Hou Defu ,
Li Jiarong

Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

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The effective potential of the W-S model is calculated both at finite temperature and density from the entire Lagrangian according to the grand canonical ensemble temperature field theory. The two elementary thermal effects in the weak and electromagnetic system are studied. The result indicates that the thermal effects not only counteract the Higgs mechanism effect and help restore the symmetry, but also make the gauge particles keep nonvanishing mass due to the plasmon effects.

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Hou Defu and Li Jiarong. The Restoration of Symmetry and Plasmon Effects at High Temperature and Density in the Weinberg-Salam Model[J]. Chinese Physics C, 1991, 15(S2): 207-217.

Hou Defu and Li Jiarong. The Restoration of Symmetry and Plasmon Effects at High Temperature and Density in the Weinberg-Salam Model[J]. Chinese Physics C, 1991, 15(S2): 207-217. shu

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Received: 1990-07-26

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Supported by the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

The Restoration of Symmetry and Plasmon Effects at High Temperature and Density in the Weinberg-Salam Model

Hou Defu
Li Jiarong

Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

Received Date: 1990-07-26

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: The effective potential of the W-S model is calculated both at finite temperature and density from the entire Lagrangian according to the grand canonical ensemble temperature field theory. The two elementary thermal effects in the weak and electromagnetic system are studied. The result indicates that the thermal effects not only counteract the Higgs mechanism effect and help restore the symmetry, but also make the gauge particles keep nonvanishing mass due to the plasmon effects.