Spectrum of Yang-Mills Theory in D=3+1

TL;DR

This paper compares the spectrum of 3+1 dimensional Yang-Mills theory obtained via strong coupling expansion with lattice data, confirming its accuracy and revealing deep analogies with the 2+1 case.

Contribution

It provides a detailed comparison between theoretical spectrum calculations and lattice data, and introduces a full quantum theory approach for Yang-Mills in 3+1 dimensions.

Findings

Excellent agreement with lattice data for the spectrum.

Validation of the strong coupling expansion approach.

Identification of deep analogies with 2+1 dimensional case.

Abstract

We give a comparison of the spectrum of Yang-Mills theory in $D=3+1$, recently derived with a strong coupling expansion, with lattice data. We verify excellent agreement also for 2$^{++}$ glueball. A deep analogy with the $D=2+1$ case is obtained and a full quantum theory of this approach is also given.