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 ad- joint 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 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 DOUBLE-STRUCK CAPITAL Z(N) symmetry in the psi chi eta system shows that the proposed infrared dynamics is consistent with it.
Dynamical Abelianization and anomalies in chiral gauge theories
Stefano Bolognesi;Kenichi Konishi;Andrea Luzio
2022-01-01
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 ad- joint 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 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 DOUBLE-STRUCK CAPITAL Z(N) symmetry in the psi chi eta system shows that the proposed infrared dynamics is consistent with it.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.