Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Seesaw mechanism in three flavors   We advance a method used to analyse the neutrino properties (masses and
mixing) in the seesaw mechanism. Assuming the hierarchical Dirac and light
neutrino masses we establish rather simple relations between the light and the
heavy neutrino parameters in the favored region of the solar and the
atmospheric neutrino experiments. A empirical condition satisfied by the RH
mixing angles is obtained.

22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con