Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Four-neutrino mixing solutions of the atmospheric neutrino anomaly   Solutions to the atmospheric neutrino anomaly which smoothly interpolate
between nu_mu -> nu_tau and nu_mu -> nu_s oscillations are studied. It is shown
that, although the Super-Kamiokande data disfavor the pure nu_mu -> nu_s
channel, one cannot exclude sizable amplitude for the nu_mu -> nu_s channel in
addition to nu_mu -> nu_tau oscillations.

36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph