Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the masses and decay widths of the scalar-isoscalar and
  vector-isovector mesons below $2$ GeV   This study revisits the issue of the extraction of estimates for the masses
and for the partial decay widths to two pions of the scalar-isoscalar
$I^G\,(J^{PC}) = 0^+\,(0^{++})$ and vector-isovector $I^G\,(J^{PC}) =
1^+\,(1^{--})$ mesons below $2$ GeV, from the data contained in the recent
compilation by the Particle Data Group.

37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int