Resonance $f_0(1500)$: Is it a scalar glueball ?

Abstract

The ratios of partial widths for the decay of a glueball into two pseudoscalar mesons are calculated under the assumption that the production of light quark pairs ($u\bar{u},d\bar{d},s\bar{s}$) in soft gluon-\-induced reactions goes on within universal symmetry breaking. Parameter of the violation of flavour symmetry is fixed by the central hadron production data in high energy hadron collisions and/or by the ratios of radiative decay amplitudes $J/\Psi \to \gamma \eta /\gamma {\eta }^{\prime }$ and $J/\Psi \to \gamma \varphi \varphi /\gamma \omega \omega$. The ratios of coupling constants $glueball\to \pi \pi ,K\bar{K},\eta \eta ,\eta {\eta }^{\prime }$ which are calculated with this parameter coincide reasonably with those of $f_0(1500)$, supporting an idea about glueball nature of $f_0(1500)$.

Comments: LaTex, 8 pages, 2 .eps figures in one uuencoded file, uses epsfig