Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: An effective field theory for collinear and soft gluons: heavy to light
  decays
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
2
The categories of this paper are: math
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc