Properties of the ground-state baryons in chiral perturbation theory

TL;DR

This paper reviews recent advances in understanding low-energy baryon properties using chiral perturbation theory, including magnetic moments, electromagnetic structures, lattice QCD extrapolations, and sigma-terms.

Contribution

It provides a comprehensive overview of applying chiral perturbation theory to baryon properties and presents new results on lattice QCD extrapolations and sigma-terms.

Findings

Chiral perturbation theory successfully describes baryon magnetic moments.

Lattice QCD results are effectively extrapolated to physical baryon masses.

Predictions are made for baryonic sigma-terms.

Abstract

We review recent progress in the understanding of low-energy baryon structure by means of chiral perturbation theory. In particular, we discuss the application of this formalism to the description of various properties such as the baryon-octet magnetic moments, the electromagnetic structure of decuplet resonances and the hyperon vector coupling $f_1(0)$. Moreover, we present the results on the chiral extrapolation of recent lattice QCD results on the lowest-lying baryon masses and we predict the corresponding baryonic sigma-terms.