Spectrum of a four-dimensional Yang-Mills theory

TL;DR

This paper calculates the next-to-leading order correction to the spectrum of a four-dimensional SU(N) Yang-Mills theory and finds excellent agreement with lattice computations, validating the theoretical approach.

Contribution

It provides the first next-to-leading order analytical correction to the Yang-Mills spectrum in four dimensions, matching lattice results with high precision.

Findings

Next-to-leading order correction computed

Agreement within 1% with lattice data

Validates analytical methods for Yang-Mills spectrum

Abstract

We obtain the next-to-leading order correction to the spectrum of a SU(N) Yang-Mills theory in four dimensions and we show agreement well-below 1% with respect to the lattice computations for the ground state and one of the higher states.