Discrete θ and the 5d superconformal index

Oren Bergman, Diego Rodríguez-Gómez, Gabi Zafrir

Research output: Contribution to journalArticlepeer-review


5d Yang-Mills theory with an Sp(N) gauge group admits a discrete analog of the θ parameter. We describe the origin of this parameter in N = 1 theories from Type I' string theory, and study its effect on the 5d superconformal fixed point theories with an Sp(1) = SU(2) gauge group by computing the superconformal index. Our result confirms the lack of global symmetry enhancement in the so-called Ẽ1 theory.

Original languageEnglish
Article number79
JournalJournal of High Energy Physics
Issue number1
StatePublished - Jan 2014
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgements This study was supported by the project OSYRIS (No. 12254 N) founded by the AIF and the Bundesminis-terium für Wirtschaft und Technologie.


  • Brane Dynamics in Gauge Theories
  • Solitons Monopoles and Instantons
  • Supersymmetric gauge theory

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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