A new proposal for glueball exploration in hard gluon fragmentation

An unambiguous identification of glueballs in experiments will be of greatsignificance, because their existence is an important test of QCD. Theproposal, advanced here, is to experimentally search for glueballs as peaks inthe invariant mass of a leading K_S-pair fragmenting from an energetic gluonjet out of high-statistics three-jet events in hadronic decays of the weakneutral Z boson. Using a physically motivated model of the gluon-glueballfragmentation function, we find a substantial fragmentation rate into a leadingglueball. It is very likely that a search, along the lines suggested here byany of the four groups at the Large Electron Positron collider at CERN, willprove fruitful.Comment: 9 pages, LaTeX (including 1 ps figure), Revised version to appear in JHE