XXV DAE-BRNS High Energy Physics Symposium 2022

Scotogenic Dark Matter symmetry from A4 Flavor symmetry

15 Dec 2022, 14:00

1h

IISER Mohali

Poster Poster - 3

Speaker

Ranjeet Kumar 2010507 (IISER Bhopal)

Description

"Scotogenic" Model is a very popular model to explain the dark matter (DM) stability along with the neutrino mass generation in a very simple and elegant way. However, in this model 'ad-hoc' $Z_2$ symmetry is needed to explain the DM stability and it does not shed any light on the flavor structure of neutrino, that's why for the explanation of flavor structure of neutrino one has to add another symmetry apart from $Z_2$ symmetry in the Scotogenic model. In this talk, we show how dark symmetry and flavor structure of neutrino can be explained just by adding only one symmetry on top of the Standard Model symmetry. In this work we have added $A_4$ flavor symmetry which is able to describe the flavor structure of neutrino and the breaking of $A_4$ into its sub-group $Z_2$ will explain the DM stability. In this work neutrino mass is generated through Scoto loop + Seesaw mechanism. We show that the model successfully explains the DM phenomenology along with the latest neutrino oscillation data. Also, our model provide testable prediction for the neutrino-less double beta ($0\nu \beta \beta$) decay experiments.