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Two-loop effective potential for a general renormalizable theory and softly broken supersymmetry | | Stephen P. Martin
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16 Nov 2001 | | Journal: | Phys.Rev. D65 (2002) 116003 | | Subject: | hep-ph | | Abstract: | I compute the two-loop effective potential in the Landau gauge for a general renormalizable field theory in four dimensions. Results are presented for the ar{MS} renormalization scheme based on dimensional regularization, and for the ar{DR} and ar{DR}’ schemes based on regularization by dimensional reduction. The last of these is appropriate for models with softly broken supersymmetry, such as the Minimal Supersymmetric Standard Model. I find the parameter redefinition which relates the ar{DR} and ar{DR}’ schemes at two-loop order. I also discuss the renormalization group invariance of the two-loop effective potential, and compute the anomalous dimensions for scalars and the beta function for the vacuum energy at two-loop order in softly broken supersymmetry. Several illustrative examples and consistency checks are included. | | Source: | arXiv, hep-ph/0111209 | | Services: | Forum | Review | PDF | Favorites | |
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