Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single neutral pion production by charged-current $\bar{\nu}_\mu$
  interactions on hydrocarbon at $\langle E_\nu \rangle = $ 3.6 GeV   Single neutral pion production via muon antineutrino charged-current
interactions in plastic scintillator (CH) is studied using the \minerva
detector exposed to the NuMI low-energy, wideband antineutrino beam at
Fermilab. Measurement of this process constrains models of neutral pion
production in nuclei, which is important because the neutral-current analog is
a background for $\bar{\nu}_e$ appearance oscillation experiments. The
differential cross sections for $\pi^0$ momentum and production angle, for
events with a single observed $\pi^0$ and no charged pions, are presented and
compared to model predictions. These results comprise the first measurement of
the $\pi^0$ kinematics for this process.

11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph