Supersymmetry breaking in the three-dimensional nonlinear sigma model (2013)
- Authors:
- Autor USP: SILVA, ADILSON JOSE DA - IF
- Unidade: IF
- Assunto: SUPERSIMETRIA
- Language: Inglês
- Abstract: In this work we discuss the phase structure of a deformed N = 1 supersymmetric nonlinear sigma model in a three-dimensional space-time. The deformation is introduced by a term that breaks supersymmetry explicitly, through imposing a slightly di erent constraint to the fundamental super elds of the model. Using the tadpole method, we compute the e ective potential at leading order in 1=N expansion. From the gap equations, i.e., conditions that minimize the e ective potential, we observe that this model presents two phases as the ordinary model, with two remarkable di erences: 1) the fundamental fermionic eld becomes massive in both phases of the model, which is closely related to the supersymmetry breaking term; 2) the O(N) symmetric phase presents a meta-stable vacuum.
- Imprenta:
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ABNT
LEHUM, A C e SILVA, Adílson José da. Supersymmetry breaking in the three-dimensional nonlinear sigma model. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1308.4713v2.pdf. Acesso em: 10 fev. 2026. , 2013 -
APA
Lehum, A. C., & Silva, A. J. da. (2013). Supersymmetry breaking in the three-dimensional nonlinear sigma model. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1308.4713v2.pdf -
NLM
Lehum AC, Silva AJ da. Supersymmetry breaking in the three-dimensional nonlinear sigma model [Internet]. 2013 ;[citado 2026 fev. 10 ] Available from: http://lanl.arxiv.org/pdf/1308.4713v2.pdf -
Vancouver
Lehum AC, Silva AJ da. Supersymmetry breaking in the three-dimensional nonlinear sigma model [Internet]. 2013 ;[citado 2026 fev. 10 ] Available from: http://lanl.arxiv.org/pdf/1308.4713v2.pdf - Two-loop finiteness of self-energies in higher-derivative SUSY theories at three dimensions
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