Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-Organizing Neutrino Mixing Matrix   A new and novel idea for a predictive neutrino mass matrix is presented,
using the non-Abelian discrete symmetry A(4) and the seesaw mechanism with only
two heavy neutral fermion singlets. Given the components of the one necessarily
massless neutrino eigenstate, the other two massive states are automatically
generated. A realistic example is discussed with predictions of a normal
hierarchy of neutrino masses and maximal CP violation.

10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat