Comment on "Is the spectrum of highly excited mesons purely coulombian?"

TL;DR

This paper discusses whether the degeneracy in high-lying meson spectra can be attributed to Coulomb symmetry and explores potential quantum number classifications for these states.

Contribution

It provides a critical commentary on the role of Coulomb symmetry in explaining meson degeneracy and proposes possible quantum number schemes for highly excited states.

Findings

High degeneracy may be linked to Coulomb symmetry.

Possible quantum numbers include n + J or n + L.

The discussion offers insights into meson spectrum classification.

Abstract

We comment on a possibility that a high degree of degeneracy observed in the high-lying meson (hadron) spectrum is due to Coulomb symmetry. We also shortly discuss possible principal quantum numbers n + J or n + L in highly excited states.