Hiding Anomalies

TL;DR

This paper discusses a method to hide anomalies at the classical level by adding extra degrees of freedom, shifting the anomalies to new symmetries rather than eliminating them.

Contribution

It introduces a novel approach to manage anomalies by embedding them into new symmetries through additional fields, without altering classical cohomology.

Findings

Anomalies can be anticipated without changing classical cohomology.

Extra degrees of freedom can shift anomalies to new symmetries.

The method preserves classical structure while managing anomalies.

Abstract

Anomalies can be anticipated at the classical level without changing the classical cohomology, by introducing extra degrees of freedom. In the process, the anomaly does not quite disappear. We show that, in fact, it is shifted to new symmetries that come with the extra fields.