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One-loop effective potential in nonlocal supersymmetric theories
Within the superfield approach, we consider the nonlocal generalization of the Wess-Zumino model and calculate the one-loop low-energy contributions to the effective action. Four different nonlocal models are considered, among which only the first model does not reduce to the standard Wess-Zumino mo...
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Published in: | Physical review. D 2017-01, Vol.95 (2), Article 025028 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Within the superfield approach, we consider the nonlocal generalization of the Wess-Zumino model and calculate the one-loop low-energy contributions to the effective action. Four different nonlocal models are considered, among which only the first model does not reduce to the standard Wess-Zumino model when we take the parameter of nonlocality of the model, Λ, much greater than any energy scale; in addition, this model also depends on an extra parameter ξ. As to the other three models, the result looks like the renormalized effective potential for the usual Wess-Zumino model, where the normalization scale μ is replaced by the Λ. Moreover, the fourth model displays a divergence which can be eliminated through the appropriate wave function renormalization. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.95.025028 |