English

Quenched glueball spectrum from functional equations

High Energy Physics - Phenomenology 2022-02-16 v2

Abstract

We give an overview of results for the quenched glueball spectrum from two-body bound state equations based on the 3PI effective action. The setup, which uses self-consistently calculated two- and three-point functions as input, is completely self-contained and does not have any free parameters except for the coupling. The results for JPC=0±+,2±+,3±+,4±+J^{\mathsf{PC}}=0^{\pm+},2^{\pm+},3^{\pm+},4^{\pm+} are in good agreement with recent lattice results where available. For the pseudoscalar glueball, we present first results from a two-loop complete calculation, rendering also the bound state calculation fully self-consistent.

Keywords

Cite

@article{arxiv.2111.10197,
  title  = {Quenched glueball spectrum from functional equations},
  author = {Markus Q. Huber and Christian S. Fischer and Hèlios Sanchis-Alepuz},
  journal= {arXiv preprint arXiv:2111.10197},
  year   = {2022}
}

Comments

8 pages, 5 figures, 1 table, contribution to the proceedings of "A Virtual Tribute to Quark Confinement and the Hadron Spectrum 2021", Aug. 2-6, 2021; v2: corrected numbers in tab. 1

R2 v1 2026-06-24T07:44:49.301Z