Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discriminating between nu_mu <-> nu_tau and nu_mu <-> nu_sterile in
  atmospheric nu_mu oscillations with the Super-Kamiokande detector   A strong body of evidence now exists for atmospheric nu_mu disappearance
oscillations. Such disappearance could be explained by oscillations to either
nu_tau or a ``sterile'' neutrino (nu_s). Super-Kamiokande uses three different
methods to distinguish between these two scenarios. First, matter effects would
suppress the nu_mu <-> nu_s oscillation amplitude at high energy. Second,
oscillation to nu_s would reduce the overall neutral-current neutrino
interaction rate. Third, the smoking gun of nu_mu <-> nu_tau oscillations would
be the observation of tau appearance resulting from charged-current nu_tau
interactions. The results of these three techniques are presented, which
strongly favor nu_mu <-> nu_tau oscillations over nu_mu <-> nu_s.

3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom