Lepton flavor mixing and baryogenesis
Kyunsik Kang, Sin Kyu Kang, Utpal Sarkar

TL;DR
This paper explores how extending a flavor symmetry-based quark mass matrix ansatz to leptons impacts neutrino masses and the universe's baryon asymmetry, linking flavor symmetries to cosmological phenomena.
Contribution
It introduces a novel extension of a flavor symmetry to the lepton sector and analyzes its implications for neutrino masses and baryogenesis.
Findings
Neutrino mass matrix structure derived from extended symmetry
Potential explanation for baryon asymmetry via leptogenesis
Connections between flavor symmetry and cosmological observations
Abstract
Recently a new general class of quark mass matrix ansatz has been proposed, which originates from some flavor symmetry. We extend that symmetry to the lepton sector and study the neutrino mass matrix and address the question of the baryon asymmetry of the universe in this model.
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