Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge

Hou Defu; Li Jiarong

Chinese Physics C> 1995, Vol. 19> Issue(11) : 998-1004

Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge

Hou Defu ^, ,
Li Jiarong

Institute of Particle Physics,Hua-Zhong Normal University,Wuhan 430070

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Abstract：
The dimensional regularization at finite temperature is applied to calculate accurately the thermodynamic potential of two-loop QED and the overlapping divergences at arbitrary gauge.It indicates that the overlapping divergences are cancelled with each other and the result is gauge-independent.

References

[1]

J.L.Kapusta,”Finite-Temperature Field Theory“（Cambarige Univ.Press,1989）.[2] L.Ojima,Ann.of Phys.,137（1981）1.[3] G.'t Hooft,M.Veltman,Nucl.Phys,B44（1972）189;C.G.Bollini,J.J.Giambiagi,Nuovo Cimento,12B（1972）20.[4] Y.Fujimoto,Hou Defu,Phys,Lett,B335（1994）87.[5] J.F.Donoghue et al.,Ann.of Phys,164（1985）233.[6] R.L.Kobes,G.W.Semenoff,Nucl.Phys,B260（1985）714.[7] R.D.Pisarski,Phys.Rev,D47（1993）5589.

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Hou Defu and Li Jiarong. Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge[J]. Chinese Physics C, 1995, 19(11): 998-1004.

Hou Defu and Li Jiarong. Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge[J]. Chinese Physics C, 1995, 19(11): 998-1004. shu

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Received: 1900-01-01
Revised: 1900-01-01

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