Studying of renormalization group and dynamical symmetry breaking in supergravity
| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Fed ABC, Ctr Ciencias Nat & Humans, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil
[2] Fed Univ Para, Fac Fis, BR-66075110 Belem, Para - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Nuclear Physics B; v. 907, p. 664-677, JUN 2016. |
| Web of Science Citations: | 1 |
| Abstract | |
In this work, we investigate the consequences of the Renormalization Group Equation (RGE) in the determination of the effective superpotential and the study of Dynamical Symmetry Breaking (DSB) in an N = 1 supersymmetric theory including an Abelian Chem-Simons superfield coupled to N scalar super fields in (2 + 1) dimensional spacetime. The classical Lagrangian presents scale invariance, which is broken by radiative corrections to the effective superpotential. We calculate the effective superpotential up to two loops by using the RGE and the beta functions and anomalous dimensions known in the literature. We then show how the RGE can be used to improve this calculation, by summing up properly defined series of leading logs (LL), next-to-leading logs (NLL) contributions, and so on... We conclude that even if the RGE improvement procedure can indeed be applied in a supersymmetric model, the effects of the consideration of the RGE are not so dramatic as it happens in the non-supersymmetric case. (C) 2016 The Authors. Published by Elsevier B.V. (AU) | |
| FAPESP's process: | 13/22079-8 - Physics of particles and fields: standard model and its extensions |
| Grantee: | Adriano Antonio Natale |
| Support type: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/24672-0 - Symmetries and physics beyond the standard model |
| Grantee: | Alysson Fábio Ferrari |
| Support type: | Regular Research Grants |