Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino mass matrices with one texture equality and one vanishing
  neutrino mass   In the light of latest data of neutrino oscillation experiments, we carry out
a systematic investigation on the texture structures of Majorana neutrino mass
matrix $M_{\nu}$, which contain one vanishing neutrino mass and an equality
between two matrix elements. Among 15 logically possible patterns, it is found
that for norm order ($m_{3}>m_{2}>m_{1}=0$) of neutrino masses only five of
them are compatible with recent experimental data at the $3\sigma$ level, while
for inverted order ($m_{2}>m_{1}>m_{3}=0$) ten patterns is phenomenologically
allowed. In the numerical analysis, we perform a scan over the parameter space
of all viable patterns to get a large sample of scattering points. We present
the implications of each allowed pattern for three mixing angles
$(\theta_{12},\theta_{2},\theta_{3})$, leptonic CP violation and neutrinoless
double-beta decay, predicting strong correlations between oscillation
parameters. The theoretical realization of a concrete example is discussed in
the framework of Froggatt-Nielsen mechanism.

13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc