A definitive observation of a glueball with the properties predicted by QCD would strongly confirm the theory .
One qualitative prediction of QCD is that there exist composite particles made solely of gluons called glueballs that have not yet been definitively observed experimentally .
A definitive observation of a glueball with the properties predicted by QCD would strongly confirm the theory .
One qualitative prediction of QCD is that there exist composite particles made solely of gluons called glueballs that have not yet been definitively observed experimentally .