Anomaly-induced charges in nucleons

TL;DR

This paper reveals a new charge structure in nucleons caused by the chiral anomaly, using Skyrmions to calculate charge distributions in single and multi-baryon systems, uncovering additional charges and intriguing distributions.

Contribution

It introduces a novel charge structure in baryons due to the chiral anomaly and employs Skyrmion models to compute charge distributions in nucleons and multi-baryon systems.

Findings

Single nucleon has an additional charge component.

Multi-baryon charge distributions exhibit interesting patterns.

Charge structures are influenced by the chiral anomaly.

Abstract

We show a novel charge structure of baryons in electromagnetic field due to the chiral anomaly. A key connection is to treat baryons as solitons of mesons. We use Skyrmions to calculate the charge distributions in a single nucleon and find an additional charge. We also perform calculations of charge distribution for classical multi-baryons with B=2, 3,...,8 and 17; they show amusing charge distributions.