On the one-loop effective potential in nonlocal supersymmetric theories
| Autor: | de Mello, E. R. Bezerra, Gama, F. S., Nascimento, J. R., Petrov, A. Yu. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 95, 025028 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.95.025028 |
| Popis: | 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, $\Lambda$, much greater than any energy scale; in addition, this model also depends on an extra parameter, $\xi$. As to the other three models, the result looks like the renormalized effective potential for the usual Wess-Zumino model, where the normalization scale $\mu$ is replaced by the $\Lambda$. Moreover, the fourth model displays a divergence which can be eliminated through the appropriate wave function renormalization. Comment: 13 pages |
| Databáze: | arXiv |
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