Glueballs.

The article reports on the scientific experiment on the existence of glueballs. The discovery of any new particle is significant in its own right.. Its positive identification would confirm one of the most important distinctions between quantum chromodynamics (QCD) its parent theory. The temporary identification of the pseudoscalar glueball is a success of the QCD that is not directly obtain from quantum electrodynamics. There is a continuing effort in search for new glueballs.