Gluon-pair-Creation Production Model of Strong Interaction Vertices

Abstract

By studying the ${\eta }_c$ exclusive decay to double glueballs, we introduce a model to mimic phenomenologically the gluon-pair-vacuum interaction vertices, namely the $0^{++}$ model. Based on this model, we study glueball production in pseudoscalar quarkonium decays, explicitly ${\eta }_c\to f_0(1500)\eta (1405)$, ${\eta }_b\to f_0(1500)\eta (1405)$ and ${\eta }_b\to f_0(1710)\eta (1405)$ processes. Among them $f_0(1500)$ and $f_0(1710)$ are well-known scalars possessing large glue components and $\eta (1405)$ is a potential candidate for pseudoscalar glueball. The preliminary calculation results indicate that these processes are marginally accessible in the presently running experiments BES III, BELLE II, and LHCb.

20 pages, 4 figures