Evidence for a glueball q(q)over-bar filter

Authors
Earl, B
Citation
B. Earl, Evidence for a glueball q(q)over-bar filter, ACT PHY P B, 29(11), 1998, pp. 3355-3357
Citations number
7
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
29
Issue
11
Year of publication
1998
Pages
3355 - 3357
Database
ISI
SICI code
0587-4254(199811)29:11<3355:EFAGQF>2.0.ZU;2-F
Abstract
QCD predicts that particles composed of bound states of gluons should exist . Experiments WA76, WA91 and WA102 have performed a dedicated search for th ese states using the CERN Omega Spectrometer. Evidence for a glueball - q(q )over-bar filter is presented based upon a kinematical cut on the differenc e in transverse momentum of the exchanged particles, dP(T). It is shown tha t at small dP(T) undisputed q(q)over-bar mesons are suppressed, whereas glu eball candidates are enhanced.