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Acta Physica Sinica (Overseas Edition), 1998, Vol. 7(6): 401-413    DOI: 10.1088/1004-423X/7/6/001
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EFFECTIVE POTENTIAL OF $\lambda$$\phi$41+3 AT ZERO AND FINITE TEMPERATURES

NI GUANG-JIONG (倪光炯), CHEN SU-QING (陈苏卿)
Department of Physics, Fudan Univerisity, Shanghai 200433,China
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 T≌ 510 GeV.
Received:  08 September 1997      Revised:  05 January 1998      Accepted manuscript online: 
PACS:  11.10.Wx (Finite-temperature field theory)  
  11.10.Gh (Renormalization)  
  11.30.Qc (Spontaneous and radiative symmetry breaking)  
Fund: Project supported by the National Natural Science Foundation of China .

Cite this article: 

NI GUANG-JIONG (倪光炯), CHEN SU-QING (陈苏卿) EFFECTIVE POTENTIAL OF $\lambda$$\phi$41+3 AT ZERO AND FINITE TEMPERATURES 1998 Acta Physica Sinica (Overseas Edition) 7 401

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