Science in China Series A: Mathematics

, Volume 41, Issue 11, pp 1206–1215 | Cite as

λφ4model and Higgs mass in standard model calculated by Gaussian effective potential approach with a new regularization-renormalization method

  • Guangjiong Ni
  • Senyue Lou
  • Wenfa Lu
  • Jifeng Yang


Based on a new regularization-renormalization method, the λφ4 model used in standard model (SM) is studied both perturbatively and nonperturbatively by Gaussian effective potential (GEP). The invariant property of two mass scales is stressed and the existence of a (Landau) pole is emphasized. Then after coupling with theSU(2) ×U(1) gauge fields, the Higgs mass in standard model (SM) can be calculated to bem H≈138 GeV. The critical temperature (T c ) for restoration of symmetry of Higgs field, the critical energy scale (μmax, the maximum energy scale under which the lower excitation sector of the GEP is valid) and the maximum energy scale (μmax, at which the symmetry of the Higgs field is restored) in the SM areT c ≈476 GeV, μc≈0.547 × 1015 and μmax≈0.873 × 1015, respectively.


λφ4 model Higgs mass regularization renormalization method 


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Copyright information

© Science in China Press 1998

Authors and Affiliations

  • Guangjiong Ni
    • 1
  • Senyue Lou
    • 2
  • Wenfa Lu
    • 3
  • Jifeng Yang
    • 3
  1. 1.Department of PhysicsFudan UniversityShanghaiChina
  2. 2.Institute of Modern PhysicsNingbo UniversityNingboChina
  3. 3.Department of PhysicsFudan UniversityShanghaiChina

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