Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino Oscillations: Status, Prospects and Opportunities at a Neutrino
  Factory   We review the current status of neutrino oscillations after 1258 days of
Super-Kamiokande, assess their future prospects over the next 10 years as the
next generation of experiments come on-line, and discuss the longer-term
opportunities presented by a Neutrino Factory. We also give an introduction to
the see-saw mechanism and its application to atmospheric and solar neutrinos.

19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat