θ and the η in large N supersymmetric QCD

Michael Dine, Patrick Draper, Laurel Stephenson-Haskins, Di Xu

Research output: Contribution to journalArticlepeer-review

Abstract

We study the large N θ dependence and the η potential in supersymmetric QCD with small soft SUSY-breaking terms. Known exact results in SUSY QCD are found to reflect a variety of expectations from large N perturbation theory, including the presence of branches and the behavior of theories with matter (both with Nf ≪ N and Nf ∼ N ). However, there are also striking departures from ordinary QCD and the conventional large N description: instanton effects, when under control, are not exponentially suppressed at large N , and branched structure in supersymmetric QCD is always associated with approximate discrete symmetries. We suggest that these differences motivate further study of large N QCD on the lattice.

Original languageEnglish (US)
Article number122
JournalJournal of High Energy Physics
Volume2017
Issue number5
DOIs
StatePublished - May 1 2017
Externally publishedYes

Keywords

  • Phase Diagram of QCD
  • Supersymmetric Effective Theories

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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