Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Axial structure of the nucleon   We review the current status of experimental and theoretical understanding of
the axial nucleon structure at low and moderate energies. Topics considered
include (quasi)elastic (anti)neutrino-nucleon scattering, charged pion
electroproduction off nucleons and ordinary as well as radiative muon capture
on the proton.

27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics