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Leptonic CP Violating Phase $ delta_{CP} $ in the light neutrino sector and leptogenesis via present matter antimatter asymmetry of the Universe entails each other. Probing CP violation in light neutrino oscillation is one of the challenging tasks today. The reactor mixing angle $ theta_{13} $ measured in reactor experiments, LBL, DUNE with high precision in neutrino experiments indicates towards the vast dimension of scope to detect $ delta_{CP} $. The correlation between leptonic Dirac CPV phase $ delta_{CP} $, reactor mixing angle $ theta_{13} $, lightest neutrino mass $ m_{1} $ and matter antimatter asymmetry of the Universe within the framework of $ mu-tau $ symmetry breaking assuming the type I seesaw dominance is extensively studied here. Small tiny breaking of the $ mu-tau $ symmetry allows a large Dirac CP violating phase in neutrino oscillation which in turn is characterised by awareness of measured value of $ theta_{13} $ and to provide a hint towards a better understanding of the experimentally observed near maximal value of $ u_{mu} - u_{tau} $ mixing angle $ theta_{23}simeq frac{pi}{4}$. Precise breaking of the $ mu-tau $ symmetry is achieved by adding a 120 plet Higgs to the 10 $+$ $bar{126}$ dimensional representation of Higgs. The estimated three dimensional density parameter space of lightest neutrino mass $ m_{1} $, $ delta_{CP} $, reactor mixing angle $ theta_{13} $, is constrained here for the requirement of producing the observed value of baryon asymmetry of the Universe through the mechanism of leptogenesis. Carrying out numerical analysis the allowed parameter space of $ m_{1} $, $ delta_{CP} $, $ theta_{13} $, is found out which can produce the observed baryon to photon density ratio of the Universe.
We have studied neutrinoless double beta decay and charged lepton flavour violation in broken $mu-tau$ symmetric neutrino masses in a generic left-right symmetric model (LRSM). The leading order $mu-tau$ symmetric mass matrix originates from the type
In this paper, we consider a neutrino mass model based on $A_4$ symmetry. The spontaneous symmetry breaking in this model is chosen to obtain tribimaximal mixing in the neutrino sector. We introduce $Z_2 times Z_2$ invariant perturbations in this mod
The observation of neutrinoless double beta decay will have important consequences. First it will signal that lepton number is not conserved and the neutrinos are Majorana particles. Second, it represents our best hope for determining the absolute ne
Taking account of possible CP violation, we discuss about the constraints on the lepton mixing angles from the neutrinoless double beta decay and from the neutrino oscillation for the three flavour Majorana neutrinos. From the CHORUS oscillation expe
Assuming that neutrinos acquire radiative seesaw Majorana masses through their interactions with dark matter, i.e. scotogenic from the Greek scotos meaning darkness, and using the non-Abelian discrete symmetry $A_4$, we propose a model of neutrino ma