Moduli space of global symmetry in N = 1 supersymmetric theories and the quasi-Nambu-Goldstone bosons

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We derive the moduli space of the global symmetry in N = 1 supersymmetric theories. We show that, at the generic points, it coincides with the space of quasi-NambuGoldstone (QNG) bosons, which appear besides the ordinary Nambu-Goldstone (NG) bosons when the global symmetry G breaks down spontaneously to its subgroup H with preservation of N = 1 supersymmetry. At the singular points, most of the NG bosons change to QNG bosons and the unbroken global symmetry is enhanced. The G orbits parametrized by the NG bosons are the fiber at the moduli space and the singular points correspond to the point where the H orbit (in the G orbit) shrinks. We also show that the low energy effective Lagrangian is the arbitrary function of the moduli parameters.

Original languageEnglish
Pages (from-to)2397-2430
Number of pages34
JournalInternational Journal of Modern Physics A
Issue number15
Publication statusPublished - 1999 Jun 20
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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