Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gluon Fragmentation into Spin-Triplet S-Wave Quarkonium   The leading color-singlet contribution to the fragmentation function for a
gluon to split into spin-triplet S-wave quarkonium is presented. In the case of
charmonium, we find that this color-singlet term is always negligible compared
to the leading color-octet contribution.

35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas