Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-01-14
Nucl.Phys. A623 (1997) 125c-134c
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex file. 6 figs. Invited talk at DAFCE Conference, Frascati
Scientific paper
10.1016/S0375-9474(97)00430-2
The $f_0(1500)$ is identified in three glueball favoured production mechanisms: $p\bar{p}$ annihilation, $\psi \to \gamma f_0$ and Central Production. The production rate for glueballs in $\psi \to \gamma G$ has been quantified and the $f_0(1500)$ is found to be consistent with a glueball - $q\bar{q}$ mixture. We illustrate a remarkable property of central production where kinematic cuts appear to make a systematic separation between glueballs and $q\bar{q}$ of the same $J^{PC}$. When the cut favouring glueballs is applied, the $f_0(1500)$ and other enigmatic states appear prominently while confirmed $q\bar{q}$ states are empirically suppressed.
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