Curious patterns of IR symmetry enhancement

Shlomo S. Razamat, Orr Sela, Gabi Zafrir

Research output: Contribution to journalArticlepeer-review


We study several cases of IR enhancements of global symmetry in four dimensions. In particular, we consider a sequence of Spin(n + 4) supersymmetric gauge theories (8 ≥ n ≥ 1) with n vectors and spinor matter with 32 components. We show that the subgroup of the flavor symmetry of these theories rotating the matter in the spinor representations in the UV, when proper gauge singlet fields are added, enhances to the commutant of SU(2) in E9−n. We discuss several other interesting cases of enhanced symmetries and the interplay between symmetry enhancement and self-duality. We also make some observations about possible interconnections between chiral ring relations and symmetry enhancement. Finally, we conjecture relations of the discussed models to compactifications of certain conformal matter models in six dimensions on tori. The conjecture is based on deriving a relation between five dimensional models with Spin gauge groups and conformal theories in six dimensions. As a by product of our considerations we discover a new instance of a simple self-duality of a theory with an SU(6) gauge group.

Original languageEnglish
Article number163
JournalJournal of High Energy Physics
Issue number10
StatePublished - 1 Oct 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018, The Author(s).


  • Duality in Gauge Field Theories
  • Field Theories in Higher Dimensions
  • Global Symmetries
  • Supersymmetry and Duality

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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