Glueball and gluelump spectrum in abelian projected QCD

TL;DR

This paper investigates the spectra of glueballs and gluelumps in abelian projected QCD, demonstrating their recoverability and providing interpretations within the abelian framework, despite positivity issues.

Contribution

It presents the calculation of glueball and gluelump spectra in abelian projected QCD for both quenched and full QCD, offering new insights into their interpretation within the abelian projected theory.

Findings

Spectra can be recovered despite positivity problems.

Some gluelump states are interpretable within the abelian projected framework.

Results are consistent in quenched and full QCD.

Abstract

We study glueball and gluelump spectra calculated after abelian projection in both quenched and $N_f=2$ full QCD. The abelian projection is made after MA gauge fixing. We demonstrate that both spectra can be recovered despite the problem with positivity. We suggest the interpretation of some of the gluelump states in the language of the abelian projected theory.