Probing the proton and its excitations in full QCD

TL;DR

This paper explores the use of variational techniques in full QCD to extract electromagnetic properties of excited nucleon states, providing preliminary results for charge radii and magnetic moments of the proton and related particles.

Contribution

It introduces a novel application of variational methods to determine electromagnetic properties of excited nucleons in full QCD, including initial results for specific particles.

Findings

Preliminary charge radii and magnetic moments obtained for proton and its excitations.

Demonstrates feasibility of variational techniques for excited state analysis in full QCD.

Provides initial quantitative insights into electromagnetic properties of nucleon excitations.

Abstract

We present a first look at the application of variational techniques for the extraction of the electromagnetic properties of an excited nucleon system. In particular, we include preliminary results for charge radii and magnetic moments of the proton, its first even-parity excitation and the $\Delta^{+}$.