A new proposal for glueball exploration in hard gluon fragmentation

Details A new proposal for glueball exploration in hard gluon fragmentation A new proposal for glueball exploration in hard gluon fragmentation

1999-02-19

arxiv.org/abs/hep-ph/9902400v2

JHEP 9907 (1999) 013

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTeX (including 1 ps figure), Revised version to appear in JHEP

Scientific paper

10.1088/1126-6708/1999/07/013

An unambiguous identification of glueballs in experiments will be of great significance, because their existence is an important test of QCD. The proposal, advanced here, is to experimentally search for glueballs as peaks in the invariant mass of a leading K_S-pair fragmenting from an energetic gluon jet out of high-statistics three-jet events in hadronic decays of the weak neutral Z boson. Using a physically motivated model of the gluon-glueball fragmentation function, we find a substantial fragmentation rate into a leading glueball. It is very likely that a search, along the lines suggested here by any of the four groups at the Large Electron Positron collider at CERN, will prove fruitful.

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