Exotic nonsupersymmetric gauge dynamics from supersymmetric QCD

Ofer Aharony*, Jacob Sonnenschein, Michael E. Peskin, Shimon Yankielowicz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We extend Seibergs qualitative picture of the behavior of supersymmetric QCD to nonsupersymmetric models by adding soft supersymmetry-breaking terms. In this way we recover the standard vacuum of QCD with Nf flavors and Nc colors when Nf<Nc. However, for NNc, we find new exotic statesnew vacua with spontaneously broken baryon number for Nf=Nc, and a vacuum state with unbroken chiral symmetry for Nf>Nc These exotic vacua contain massless composite fermions and, in some cases, dynamically generated gauge bosons. In particular Seibergs electric-magnetic duality seems to persist also in the presence of (small) soft supersymmetry breaking. We argue that certain, specially tailored, lattice simulations may be able to detect the novel phenomena. Most of the exotic behavior does not survive the decoupling limit of large SUSY-breaking parameters.

Original languageEnglish
Pages (from-to)6157-6174
Number of pages18
JournalPhysical Review D
Volume52
Issue number10
DOIs
StatePublished - 1995

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