Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The \gamma-ray production in neutral-current neutrino oxygen interaction
  in the energy range above 100 MeV   We calculate the cross section of the gamma-ray production from
neutral-current neutrino-oxygen quasi-elastic interaction, $\nu+\^{16}O
\rightarrow \nu +p+^{15}N*$, or $\nu+^{16}O \rightarrow \nu+n+^{15}O*$, in
which the residual nuclei (15N* or 15O*) lead to the gamma-ray emission with
gamma-ray energy >6 MeV at the branching ratio of 41%. Above 200 MeV, this
cross section dominates over that of gamma-ray production from the inelastic
reaction, $\nu+^{16}O->\nu+^{16}O*$. In the present calculation, spectral
function and the spectroscopic factors of $1p_{1/2}, 1p_{3/2} and 1s_{1/2}$
states are essential. The gamma-ray production is dominated by the deexcitation
of $1p_{3/2}$ state of the residual nucleus.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex