Quasi two-zero texture in Type-II seesaw at fixed points from modular A 4 symmetry

Q: What does this research mean for the field?

A quasi two-zero neutrino texture based on a type-II seesaw model with modular A4 symmetry can satisfy cosmological bounds on the sum of neutrino masses. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

Takaaki Nomura; Hiroshi Okada

doi:10.1093/ptep/ptag024

January 31, 2026Progress of Theoretical and Experimental PhysicsOpen Access

Quasi two-zero texture in Type-II seesaw at fixed points from modular A 4 symmetry

View Full Paper

Ask AI

Bookmark

Share

Key Points

The study aims to explore a quasi two-zero neutrino texture using a type-II seesaw model influenced by modular A4 symmetry.
Analyzed three fixed points for the modulus related to the type-II seesaw model.
Investigated predictions of neutrino masses under modular A4 symmetry.
Assessed compliance with cosmological mass constraints using CMB and CMB+BAO data.
Identified specific points that satisfy cosmological bounds on neutrino mass.
Confirmed that the model allows for predictability in the neutrino sector.
Demonstrated consistency with existing cosmological data.

Ask about this paper

Answers are grounded in this paper and cite their sources.

Implication

Quasi experimental analysis reveals allowed neutrino mass points in a modular framework, suggesting new structure.

Abstract

We study a quasi two-zero neutrino texture based on a type-II seesaw model with modular A4 symmetry to evade the cosmological bound on the sum of neutrino masses while keeping some predictability in the neutrino sector. Working on three fixed points for modulus, we discuss predictions of the model and show the allowed points satisfying the cosmological bound on neutrino mass from both CMB and CMB+BAO data.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Nomura et al. (2026) studied this question.

synapsesocial.com/papers/6992b3939b75e639e9b085d8 https://doi.org/10.1093/ptep/ptag024

View Full Paper

Ask AI

Bookmark

Share

Quasi two-zero texture in Type-II seesaw at fixed points from modular A 4 symmetry

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Quasi two-zero texture in Type-II seesaw at fixed points from modular A 4 symmetry

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Keep reading

Keep reading