Dynamical Abelianization and anomalies in chiral gauge theories

Abstract

We explore the idea that in some class of strongly-coupled chiral $SU(N)$ gauge theories the infrared dynamics might be characterized by a bifermion condensate in the adjoint representation of the color gauge group. As an illustration, in this work we revisit an $SU(N)$ chiral gauge theory with Weyl fermions in a symmetric ($\psi$) and anti-antisymmetric ($\chi$) tensor representations, together with eight fermions in the anti-fundamental representations ($\eta$), which we called $\psi \chi \eta$ model in the previous investigations. We study the infrared dynamics of this system more carefully, by assuming dynamical Abelianization, a phenomenon familiar from $\mathcal{N}=2$ supersymmetric gauge theories, and by analyzing the way various continuous and discrete symmetries are realized at low energies. We submit then these ideas to a more stringent test, by taking into account some higher-form symmetries and the consequent mixed anomalies. A detailed analysis of the mixed anomalies involving certain $0$-form $U(1)$ symmetries and the color-flavor locked $1$-form $Z_N$ symmetry in the $\psi \chi \eta$ system shows that the proposed infrared dynamics is consistent with it.

arXiv comment29 pages, 1 figure

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Cited by in corpus (4)

• Symmetry TFTs for 3d QFTs from M-theory
• Disconnected 0-Form and 2-Group Symmetries
• Consistency of $\chi$SB in chiral Yang-Mills theory with adiabatic continuity
• Generalized symmetry constraints on deformed 4d (S)CFTs