Renormalization group improvement and dynamical breaking of symmetry in a supersymmetric Chem-Simons-matter model

Autor(es)

Quinto, A. G. ^[1] ; Ferrari, A. F. ^[1] ; Lehum, A. C. ^[2]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Nuclear Physics B; v. 907, p. 664-677, JUN 2016.
• Citações Web of Science: 1

Resumo

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)

• Processo FAPESP: 13/22079-8 - Física de partículas e campos: modelo padrão e suas extensões
• Beneficiário: Adriano Antonio Natale
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/24672-0 - Simetrias e a física além do modelo padrão
• Beneficiário: Alysson Fábio Ferrari
• Modalidade de apoio: Auxílio à Pesquisa - Regular