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Leptogenesis and Neutrinoless Double Beta Decay in the Scotogenic Hybrid Textures of Neutrino Mass Matrix

2023/03/20 by Ankush, Rishu Verma, Sahil Kumar +4
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2303.11149

openalex publication_date 2023/03/20 · openalex created_date 2023/03/23 · openalex updated_date 2026/07/28

Abstract

In our recent work we identify the hybrid textures of neutrino mass matrix which simultaneously account for dark matter (DM) and neutrinoless double beta decay (0νββ). We also obtained the bounds on dark matter mass and effective Majorana mass |Mee|. In this work we look for those hybrid textures which altogether accounts for DM, 0νββ and leptogenesis. We have found correlation of baryon asymmetry of universe Y with dark matter mass M1 and effective Majorana mass |Mee|. We use experimental bounds on relic density of dark matter (Ωh2) and baryon asymmetry of universe to identify the hybrid textures. We found that out of five hybrid textures which simultaneously satisfies the physics observations of the DM and 0νββ only three hybrid textures altogether satisfy the DM, 0νββ and leptogenesis. It is interesting to note that these three hybrid textures gives lower bound to the effective Majorana mass |Mee| which can be probed in current and future experiments like SuperNEMO, KamLAND-Zen, NEXT, and nEXO (5 year) have sensitivity reaches of 0.05 eV, 0.045 eV, 0.03 eV, and 0.015 eV, respectively.

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