Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An $A_4$ realization of inverse seesaw: neutrino masses, $\theta_{13}$
  and leptonic non-unitarity   We provide an $A_4$ based flavor symmetric scenario to accommodate the
inverse seesaw mechanism for explaining light neutrino masses and mixing. We
find that the lepton mixing, in particular the tri-bimaximal mixing pattern and
its deviation through nonzero $\theta_{13}$, is originated solely from the
flavor structure of the lepton number violating contribution of the neutral
lepton mass matrix. Here we discuss in detail how a nonzero value of
$\theta_{13}$ is correlated with the other parameters in the framework and its
impact on the Dirac CP phase $\delta$. We also analyze the non-unitarity
effects on lepton mixing matrix and its implication in terms of the lepton
flavor violating decays, etc..

18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an