### Speaker

### Description

We propose a phenomenological model of the Dirac neutrino mass

matrix based on the Fridberg-Lee neutrino mass model at a special

point. In this case, the Fridberg-Lee model reduces to the

Democratic mass matrix with the $S_3$ permutation family symmetry.

The Democratic mass matrix has an experimentally unfavored

degenerate mass spectrum on the base of tribimaximal mixing

matrix. We rescue the model to find a nondegenerate mass spectrum

by adding the breaking mass term as preserving the twisted

Fridberg-Lee symmetry. The tribimaximal mixing matrix can be also

realized. Exact tribimaximal mixing leads to $\theta_{13}=0$.

However, the results from Daya Bay and RENO experiments have

established a nonzero value for $\theta_{13}$. Keeping the leading

behavior of $U$ as tribimaximal, we use Broken Democratic neutrino

mass model. We characterize a perturbation mass matrix which is

responsible for a nonzero $\theta_{13}$ along with CP violation,

besides the solar neutrino mass splitting has been resulted from

it. We consider this work in two stages: In the first stage, we

obtain the perturbation mass matrix with real components which

breaks softly the $\mu-\tau$ symmetry and this leads to a nonzero

value for $\theta_{13}$. In the second stage, we extend the

perturbation mass matrix to a complex symmetric matrix which leads

to CP violation. Therefore obtain a realistic neutrino mixing

matrix with $\theta_{23}=45^\circ$. We obtain the solar mass

splitting, the ordering of the neutrino masses is inverted. Using

only two sets of the experimental data, we can fix all of the

parameters of mass matrix and predict the masses of neutrinos and

phases. These predictions include the following:

$m_{1}\approx(4.82-4.93)10^{-2}eV $,

$|m_2|\approx(4.90-5.01)10^{-2} eV$, $m_3\approx0$ and,

$\phi\approx(0.687^\circ-10.31^\circ)$ as the origin of the

Majorana phases.