Semantic Scholar Open Access 2009 56 sitasi

Infrared stability of ABJ-like theories

M. S. Bianchi S. Penati M. Siani

Abstrak

We consider marginal deformations of the superconformal ABJM/ABJ models which preserve $ \mathcal{N} = 2 $ supersymmetry. We determine perturbatively the spectrum of fixed points and study their infrared stability. We find a closed line of fixed points which is IR stable. The fixed point corresponding to the ABJM/ABJ models is stable under marginal deformations which respect the original SU(2)A × SU(2)B invariance, while deformations which break this group destabilize the theory which then flows to a less symmetric fixed point. We discuss the addition of flavor degrees of freedom. We prove that in general a flavor marginal superpotential does not destabilize the system in the IR. An exception is represented by a marginal coupling which mixes matter charged under different gauge sectors. Finally, we consider the case of relevant deformations which should drive the system to a strongly coupled IR fixed point recently investigated in arXiv:0909.2036 [hep-th].

Topik & Kata Kunci

Physics

Penulis (3)

M. S. Bianchi

S. Penati

M. Siani

Format Sitasi

APA MLA BibTeX

Bianchi, M.S., Penati, S., Siani, M. (2009). Infrared stability of ABJ-like theories. https://doi.org/10.1007/JHEP01(2010)080

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Informasi Jurnal

Tahun Terbit: 2009
Bahasa: en
Total Sitasi: 56×
Sumber Database: Semantic Scholar
DOI: 10.1007/JHEP01(2010)080
Akses: Open Access ✓