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

[1]

S. Nagamiya, Nuclear Phase Transitions and Heary Ion Reactions ed. T. T. S. Kuo, D. Strottman and S S. Wu (World Sci.) 1987.[2] R. K. Su and T. T. S. Kuo, Mod. Phys. Lett., A2(1987), 71.[3] R. K. Su, H. Q. Song and T. T. S. Kuo, Phys. Rev., C37(1988), 1770.[4] G. T. Zheng and R. K. Su, Chinese Science Bulletin, 35(1990), 1874.[5] 郑国桐, 沈雪娥, 苏汝铿, 计算物理, 7(1990), 153.[6] R. K. Su and G. T. Zheng, Jour, of Phys., G16(1990), 203.[7] T. Chen and R. K. Su, High Energy Phys. and Nucl. Phys., 12(1988), 131.[8] 郑国桐, 苏汝铿, 高能物理与核物理, 14(1990), 220.[9] V. Bernard, U. G. Meissner and I. Zahed, Phys. Rev., D36(1987), 819.[10] T. Hatsuda and T. Kunihiro, Phys. Lett., B185(1987), 304.[11] A. L.费特, J. D.瓦立克, 多粒子系统的t子理论, 科学出版社, 北京, 1984,p. 313.

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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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沈阳化工大学材料科学与工程学院沈阳 110142

Vextex Corrections and one σ Exchange Potential at Finite Temperature

ZHENG Guo-Tong ^,
SU Ru-Keng

Corresponding author: ZHENG Guo-Tong,

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

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-08-05

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.