A review on Glueball hunting

TL;DR

This review discusses the theoretical predictions, experimental searches, and recent lattice calculations related to Glueballs, which are hypothetical particles predicted by QCD arising from gluon self-interactions.

Contribution

It provides a comprehensive overview of current efforts and recent progress in understanding and searching for Glueballs, highlighting ongoing debates and advancements.

Findings

Recent experimental results have yet to confirm Glueballs.

Lattice calculations provide insights but are inconclusive.

Theoretical models continue to evolve in predicting Glueball properties.

Abstract

One of the most direct predictions of QCD is the existence of color-singlet states called Glueballs, which emerge as a consequence of the gluon field self-interactions. Despite the outstanding success of QCD as a theory of the strong interaction and decades of experimental and theoretical efforts, all but the most basic properties of Glueballs are still being debated. In this talk, I will review efforts aimed to understanding Glueballs and the current status of Glueball searches, including recent experimental results and lattice calculations.