PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Poster Session
Neutrino Phenomenology and Leptogenesis in Type-III Seesaw under A_4 Modular Symmetry
P. Mishra*, M. Kumar Behera, P. Panda and R. Mohanta
Full text: pdf
Pre-published on: November 18, 2022
Published on: June 15, 2023
In this work, we implement $A_4$ modular invariance approach within the framework of type-III seesaw mechanism with $\rm U(1)_{B-L}$
as an additional gauge symmetry to the standard model (SM). The model includes SM particle spectrum
with extra $ \rm SU(2)_L $ triplet fermion $\Sigma_R$ and a scalar singlet $\rho$, which breaks the
$\rm U(1)_{B-L}$ symmetry. Fermion triplet participates in the seesaw mechanism to
give tiny mass to neutrinos. Hence, we are able to explain neutrino phenomenology, to name a few, sum of neutrino masses, reactor mixing angle etc. satisfying their present experimental 3$\sigma$ bound respectively. Also, we discuss leptogenesis and effective
electron neutrino mass parameter $\langle m_{ee} \rangle$ in neutrinoless double beta decay satisfying KamLAND-Zen bound.
DOI: https://doi.org/10.22323/1.414.1155
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