Possible candidate of 0^+ s\bar{s}s\bar{s} state

Abstract

The possibility of the $0^{+}$ $\eta \eta$ resonance $f_0(2100)$ as a candidate of the $Q^2{\bar{Q}}^2$ state $C^{ss}(36)$ is explored. The $\eta \eta$ channel of $f_0(2100)$ is the dominant decay mode, $\eta {\eta }^{\prime }$ channel has less decay rate, the decay rate of the ${\eta }^{\prime }{\eta }^{\prime }$ channel is very small. The $\pi \pi ,K\bar{K},4\pi$ modes are at next leading order in $N_C$ expansion. Other possible decay modes are discussed.

14 pages