Nucleon masses in strong magnetic fields

TL;DR

This paper investigates how strong external magnetic fields affect the masses of protons and neutrons, comparing lattice QCD calculations with phenomenological models to understand their behavior.

Contribution

It provides a comparative analysis of nucleon mass variations in strong magnetic fields using lattice QCD and phenomenological approaches, highlighting methodological choices.

Findings

Proton and neutron masses vary with magnetic field strength.

Lattice results are compared with phenomenological models.

Different lattice configurations yield consistent trends.

Abstract

We compute the variation of the masses of the proton and the neutron induced by the presence of a strong external magnetic field. We discuss the choice of the wave function and different techniques how to apply the magnetic field. The results obtained from a 24 16^2 8 and a 16^2 8^2 lattice are compared with a phenomenological approach.