Abstract
Neutrinos are perhaps the most elusive particles in our Universe. Neutrino physics could be counted as a benchmark for various new theories in elementary particle physics and also for the better understanding of the evolution of the Universe. To complete the neutrino picture, the missing information whether it is about their mass or their nature that the neutrinos are Majorana particles could be provided by the observation of a process called neutrinoless double beta (0νββ) decay. Neutrinoless double beta decay is a hypothesised nuclear process in which two neutrons simultaneously decay into protons with no neutrino emission. In this paper we proposed a neutrino mass model based on A4 symmetry group and studied its implications to 0νββ decay. We obtained a lower limit on |Mee| for inverted hierarchy and which can be probed in 0νββ experiments like SuperNEMO and KamLAND-Zen.
Highlights
Our knowledge about the fundamental laws of Universe has been greatly enriched by the efforts made in the various experimental and theoretical fields of physics, but at the same time many new mysteries about the working of the universe have confronted us
To complete the neutrino picture, the missing information whether it is about their mass or their nature that the neutrinos are Majorana particles could be provided by the observation of a process called neutrinoless double beta (0νββ) decay
The establishment of the concept of neutrino oscillations which clearly indicated the existence of neutrino mass, 0νββ decay came into a bigger picture
Summary
Our knowledge about the fundamental laws of Universe has been greatly enriched by the efforts made in the various experimental and theoretical fields of physics, but at the same time many new mysteries about the working of the universe have confronted us. Since the discovery of neutrinos many new phenomenon and various Standard Model(SM) came into existence. The establishment of the concept of neutrino oscillations which clearly indicated the existence of neutrino mass, 0νββ decay came into a bigger picture. The first signature of a physics beyond the SM was obtained in the neutrino oscillation experiments which hinted towards the new mechanism required for the neutrino mass generation. In this paper we have used Inverse seesaw mechanism [1,2,3] to generate right-handed neutrino masses at TeVscale. Using A4 flavor symmetry, we proposed a model in which we implemented type-II seesaw mechanism [4] to reduce the number of parameters in neutrino mass matrix.
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