Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heavy flavours: theory summary   I summarize the theory talks given in the Heavy Flavours Working Group. In
particular, I discuss heavy-flavour parton distribution functions, threshold
resummation for heavy-quark production, progress in fragmentation functions,
quarkonium production, heavy-meson hadroproduction.

5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
2
The categories of this paper are: math