Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Decays of Glueballs to two light mesons   We solve the B.S. equation of glueballs under instantaneous approximation.
With the B.S wave function obtained we calculate the decay width of glueballs
to two pseudoscalar mesons, $\Gamma(\pi\pi)$, $\Gamma(kk)$ and
$\Gamma(\eta\eta)$. $\Gamma(\eta\eta^\prime)$ from QCD anomaly is also
estimated.

19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th