Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino interactions: challenges in the current theoretical picture   The present theoretical status of neutrino interactions in the few-GeV region
is reviewed. Quasielastic scattering, pion production, photon emission and
their importance for neutrino oscillation studies are discussed, making
emphasis on the open questions that arise in the comparison with new
experimental data.

9
The categories of this paper are: nlin
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ