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Embedding generalized CP symmetry in one zero texture neutrino mass models.

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Title: Embedding generalized CP symmetry in one zero texture neutrino mass models.
Authors: Priya1 (AUTHOR) kashyappriya963@gmail.com, Arora, Simran1 (AUTHOR) 009simranarora@gmail.com, Chauhan, B. C.1 (AUTHOR) bcawake@hpcu.ac.in
Source: International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics. 3/30/2026, Vol. 41 Issue 9, p1-26. 26p.
Subjects: Neutrino mass, Neutrinoless double beta decay, Neutrino oscillation, Physical cosmology
Abstract: In this study, we investigate one zero textures within the framework of generalized CP symmetry associated with the complex tribimaximal matrix. By combining these approaches, we derive predictive neutrino mass matrices and establish correlations between different parameters. Future long-baseline experiments, including NO ν A, DUNE and Hyper-Kamiokande, will provide a test of the predictions for the atmospheric mixing angle arising from this analysis. We also analyze the implications for neutrinoless double beta decay in the context of one-zero textures, in light of current and future experimental data. Our analysis indicates that the sum of the three neutrino masses in the inverted hierarchy is inconsistent with the cosmological bounds from Planck data (Σ m i < 0. 1 2 eV). In addition, constraints from the DESI/SDSS + Pantheon + DES-SN dataset (Σ m i < 0. 1 7 eV) within the Λ CDM + Fluid DR + ∑ m ν framework at 95% confidence level also disfavor the inverted hierarchy. In addition, constraints from the DESI experiment (Σ m i < 0. 0 7 2 eV) may rule out all matrices in the X 1 case except m I , and in the X 2 scenario except m I , m I I and m I I I . Thus, the improved cosmological observations on Σ m i shall have decisive implications for viability of this class of model. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:In this study, we investigate one zero textures within the framework of generalized CP symmetry associated with the complex tribimaximal matrix. By combining these approaches, we derive predictive neutrino mass matrices and establish correlations between different parameters. Future long-baseline experiments, including NO ν A, DUNE and Hyper-Kamiokande, will provide a test of the predictions for the atmospheric mixing angle arising from this analysis. We also analyze the implications for neutrinoless double beta decay in the context of one-zero textures, in light of current and future experimental data. Our analysis indicates that the sum of the three neutrino masses in the inverted hierarchy is inconsistent with the cosmological bounds from Planck data (Σ m i < 0. 1 2 eV). In addition, constraints from the DESI/SDSS + Pantheon + DES-SN dataset (Σ m i < 0. 1 7 eV) within the Λ CDM + Fluid DR + ∑ m ν framework at 95% confidence level also disfavor the inverted hierarchy. In addition, constraints from the DESI experiment (Σ m i < 0. 0 7 2 eV) may rule out all matrices in the X 1 case except m I , and in the X 2 scenario except m I , m I I and m I I I . Thus, the improved cosmological observations on Σ m i shall have decisive implications for viability of this class of model. [ABSTRACT FROM AUTHOR]
ISSN:0217751X
DOI:10.1142/S0217751X26500612