Vextex Corrections and one σ Exchange Potential at Finite Temperature

ZHENG Guo-Tong; SU Ru-Keng

Chinese Physics C> 1991, Vol. 15> Issue(8) : 689-694

Vextex Corrections and one σ Exchange Potential at Finite Temperature

ZHENG Guo-Tong ^, ,
SU Ru-Keng

Department of Physics,Hangzhou Teacher's College 3100121 Department of Physics,Fudan University,Shanghai 200433

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Abstract：
By using the imaginary-time Green's function method in finite temperature field theory,we calculate the effects of the three-line vertex function on finite temperature one σ-meson exchange potential.It is found that the finite temperature coupling constant of the sigma-nucleon interaction decreases as the temperature increases,it approaches zero when temperature arrives at 210MeV.This result is quite similar to that the temperature dependence of coupling constant given by Nambu-Jona-Lasinia model at the quark level.

References

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ZHENG Guo-Tong and SU Ru-Keng. Vextex Corrections and one σ Exchange Potential at Finite Temperature[J]. Chinese Physics C, 1991, 15(8): 689-694.

ZHENG Guo-Tong and SU Ru-Keng. Vextex Corrections and one σ Exchange Potential at Finite Temperature[J]. Chinese Physics C, 1991, 15(8): 689-694. shu

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

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