%0 Journal Article
%T Pseudoscalar glueball mass from $\eta$-$\eta'$-$G$ mixing
%A Cheng
%A Hai-Yang
%A Li
%A Hsiang-nan
%A Liu
%A Keh-Fei
%J High Energy Physics - Phenomenology
%D 2008
%I 
%R 10.1103/PhysRevD.79.014024
%X We deduce the mass of the pseudoscalar glueball $G$ from an $\eta$-$\eta'$-$G$ mixing formalism based on the anomalous Ward identity for transition matrix elements. With the inputs from the recent KLOE experiment, we find a solution for the pseudoscalar glueball mass around $(1.4\pm 0.1)$ GeV, which is fairly insensitive to a range of inputs with or without Okubo-Zweig-Iizuka-rule violating effects. This affirms that $\eta(1405)$, having a large production rate in the radiative $J/\Psi$ decay and not seen in $\gamma\gamma$ reactions, is indeed a leading candidate for the pseudoscalar glueball. Other relevant quantities including the anomaly and pseudoscalar density matrix elements are obtained. The decay widths for $G\to \gamma\gamma$, $\ell^+\ell^-$ are also predicted.
%U http://arxiv.org/abs/0811.2577