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Realisation of two–zero texture of neutrino mass matrix using modular group with type–II seesaw dominance in left–right symmetric model.

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Title: Realisation of two–zero texture of neutrino mass matrix using modular group with type–II seesaw dominance in left–right symmetric model.
Authors: Kumar, Bhabana1 (AUTHOR) bhabanakumar474@gmail.com, Dutta, Debajyoti2 (AUTHOR) phy.debajyoti@bhattadevuniversity.ac.in, Das, Mrinal Kumar1 (AUTHOR) mkdas@tezu.ernet.in
Source: Interactions (30050731). 6/29/2026, Vol. 247 Issue 1, p1-18. 18p.
Subjects: Neutrino mass, Modular groups, Neutrino oscillation, Particle physics, Neutrinos, Neutrinoless double beta decay
Abstract: Assuming that neutrinos are Majorana particles, we have realized two-zero textures using the modular group. The modular group is a finite modular group isomorphic to the group. By assigning the matter fields of the model to irreducible representations of and choosing appropriate modular weights, we successfully construct two-zero textures of the neutrino mass matrix. The model is based on the left-right symmetric model (LRSM), where the active neutrino masses are generated via type-II seesaw dominance. To achieve this dominance, the particle content of the LRSM is extended by introducing one sterile fermion per generation, and the scalar sector is augmented by adding scalar doublets (). After constructing the two-zero textures, we compute the neutrino oscillation parameters and effective Majorana mass due to standard contribution of neutrinoless double beta decay for each texture. We find that the textures can successfully reproduce the neutrino oscillation parameters and the effective Majorana mass. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Assuming that neutrinos are Majorana particles, we have realized two-zero textures using the modular group. The modular group is a finite modular group isomorphic to the group. By assigning the matter fields of the model to irreducible representations of and choosing appropriate modular weights, we successfully construct two-zero textures of the neutrino mass matrix. The model is based on the left-right symmetric model (LRSM), where the active neutrino masses are generated via type-II seesaw dominance. To achieve this dominance, the particle content of the LRSM is extended by introducing one sterile fermion per generation, and the scalar sector is augmented by adding scalar doublets (). After constructing the two-zero textures, we compute the neutrino oscillation parameters and effective Majorana mass due to standard contribution of neutrinoless double beta decay for each texture. We find that the textures can successfully reproduce the neutrino oscillation parameters and the effective Majorana mass. [ABSTRACT FROM AUTHOR]
ISSN:30050731
DOI:10.1007/s10751-026-02619-2