Quenched glueballs in the DSE/BSE framework

The spectrum of glueballs with quantum numbers $J^\mathsf{PC}=0^{\pm+},2^{\pm+},3^{\pm+},4^{\pm+}$ is calculated in quenched quantum chromodynamics from bound state equations. The input is taken from a parameter-free calculation of two- and three-point functions. Our results agree well with lattice results where available and contain also some additional states. For the scalar glueball, we present first results for the effects of additional diagrams which turn out to be strongly suppressed.
Comment: 7 pages, 6 figures, 1 table; contribution to the proceedings of the 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman, Mexico City, July 26-30, 2021