Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Next-to-leading-order QCD corrections to gluon fragmentation into
  ${}^1S_0^{(1,8)}$ quarkonia   Within the NRQCD factorization framework, we compute the
next-to-leading-order QCD corrections to the gluon fragmentation into the
${}^1S_0^{(1,8)}$ Fock components of a quarkonium, at the lowest order in
velocity expansion. We follow the operator definition of the fragmentation
function advanced by Collins and Soper. The key technique underpinning our
calculation is the sector decomposition method widely used in the area of
multi-loop computation. It is found that the NLO QCD corrections have
significant effects, and qualitatively modify the profiles of the corresponding
leading-order fragmentation functions.

15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg