中国物理B ›› 1998, Vol. 7 ›› Issue (6): 401-413.doi: 10.1088/1004-423X/7/6/001

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EFFECTIVE POTENTIAL OF λφ41+3 AT ZERO AND FINITE TEMPERATURES

倪光炯, 陈苏卿   

  1. Department of Physics, Fudan Univerisity, Shanghai 200433,China
  • 收稿日期:1997-09-08 修回日期:1998-01-05 出版日期:1998-06-20 发布日期:1998-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China .

EFFECTIVE POTENTIAL OF $\lambda$$\phi$41+3 AT ZERO AND FINITE TEMPERATURES

NI GUANG-JIONG (倪光炯), CHEN SU-QING (陈苏卿)   

  1. Department of Physics, Fudan Univerisity, Shanghai 200433,China
  • Received:1997-09-08 Revised:1998-01-05 Online:1998-06-20 Published:1998-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China .

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摘要： The effective potential of $\lambda$$\varphi$41+3 model with both signs of parameter m2 is evaluated at T=0 by means of a simple but effective method for regularization and renormalization. Then at T≠0, the effective potential is evaluated in imaginary time Green function approach, using the Plana formula. A critical temperature for restoration of symmetry breaking in the standard model of particle physics is estimated to be Tc≌510 GeV.

Abstract: The effective potential of $\lambda$$\phi$41+3 model with both signs of parameter m2 is evaluated at T=0 by means of a simple but effective method for regularization and renormalization. Then at T≠0, the effective potential is evaluated in imaginary time Green function approach, using the Plana formula. A critical temperature for restoration of symmetry breaking in the standard model of particle physics is estimated to be Tc ≌ 510 GeV.

中图分类号:  (Finite-temperature field theory)

  • 11.10.Wx
11.10.Gh (Renormalization) 11.30.Qc (Spontaneous and radiative symmetry breaking)