χ_{c0,2} decay into light meson pairs and its implication of the scalar meson structures

Abstract

In light of the recent data from BES collaboration for $χ_{c0}\to VV$, $PP$ and $SS$, and from CLEO-c for $ηη$, $η^\primeη^\prime$ and $ηη^\prime$, we present a detailed analysis of the decays of heavy quarkonia into light meson pairs such as $χ_{c0,2}\to VV$, $PP$ and $SS$ in a recently proposed parametrization scheme. An overall agreement with the data is achieved in $χ_{c0,2}\to VV$ and $PP$, while in $χ_{c0}\to SS$ we find that a possible existence of glueball-$q\bar{q}$ mixings is correlated with the OZI-rule violations, which can be further examined at CLEO-c and BESIII in $χ_{c0}\to SS$ measurement.

Minor modifications; Revised version accepted by Phys. Lett. B