Comments on Symmetric Mass Generation in 2d and 4d

TL;DR

This paper discusses mechanisms for gapping fermions while preserving non-anomalous chiral symmetries using gauge dynamics in 2d and 4d, exploring strong coupling effects and known gauge theory phenomena.

Contribution

It provides a detailed analysis of symmetric mass generation via gauge dynamics, incorporating supersymmetric and non-supersymmetric gauge theory insights.

Findings

Symmetric mass generation can be achieved with gauge dynamics in 2d and 4d.

Strong coupling effects like s-confinement are relevant.

Conjectured properties of non-supersymmetric chiral gauge theories are utilized.

Abstract

Symmetric mass generation is the name given to a mechanism for gapping fermions while preserving a chiral, but necessarily non-anomalous, symmetry. In this paper we describe how symmetric mass generation for continuous symmetries can be achieved using gauge dynamics in two and four dimensions. Various strong coupling effects are invoked, including known properties of supersymmetric gauge theories, specifically the phenomenon of s-confinement, and conjectured properties of non-supersymmetric chiral gauge theories.