Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Glueball- $q\bar{q}$ Filter in Central Hadron Production   We have stumbled upon a remarkable empirical feature of central meson
production which separates established $q\bar{q}$ mesons from glueball
candidates. This does not appear to have been noted previously and we have no
simple explanation for it. We suggest that glueballs and $q\bar{q}$ of the same
$J^{PC}$ are distinguishable due to their boson versus fermion internal
structure and that this leads to a different topology for central production of
glueballs and $q\bar{q}$. Upon application of this test to data from the WA102
experiment we find that the $f_0(1500)$ and the $f_{2}(1900)$ show behaviour
consistent with glueballs and opposite to that exhibited by established
$q\bar{q}$ states.

11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat