Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On mixing angles and resonances in three neutrino oscillations in matter   We find exact analytical expressions for mixing angles in matter in the
context of three generation neutrino oscillations in matter to discuss the role
of resonances in this phenomenon. We show that some knowledge from conventional
two neutrino MSW effect, which has been extended to approximated solutions to
three neutrino oscillations, has to be abandoned in this exact approach. We
observe that maximal values for the mixing angles in matter are found in
nonresonant regions and stationary phases do not coincide anymore with
resonances in this simple extension of the MSW effect. We present a general way
to identify a resonance and discuss what we can physically expect in these
regions.

32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
2
The categories of this paper are: math