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Physics#Neutrino Physics, Particle Physics🔬 ResearchAnalyzed: Jan 3, 2026 16:48

A4-Symmetric Double Seesaw for Neutrino Masses and Mixing

Published:Dec 30, 2025 10:35
1 min read
ArXiv

Analysis

This paper proposes a model for neutrino masses and mixing using a double seesaw mechanism and A4 flavor symmetry. It's significant because it attempts to explain neutrino properties within the Standard Model, incorporating recent experimental results from JUNO. The model's predictiveness and testability are highlighted.
Reference

“The paper highlights that the combination of the double seesaw mechanism and A4 flavour alignments yields a leading-order TBM structure, corrected by a single rotation in the (1-3) sector.”

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Physics#Particle Physics, Cosmology, Gravitational Waves🔬 ResearchAnalyzed: Jan 3, 2026 19:55

Radiative Symmetry Breaking and Gravitational Waves in a Zee-Babu Model

Published:Dec 27, 2025 10:29
1 min read
ArXiv

Analysis

This paper proposes a classically scale-invariant extension of the Zee-Babu model, a model for neutrino masses, incorporating a U(1)B-L gauge symmetry and a Z2 symmetry to provide a dark matter candidate. The key feature is radiative symmetry breaking, where the breaking scale is linked to neutrino mass generation, lepton flavor violation, and dark matter phenomenology. The paper's significance lies in its potential to be tested through gravitational wave detection, offering a concrete way to probe classical scale invariance and its connection to fundamental particle physics.
Reference

“The scenario can simultaneously accommodate the observed neutrino masses and mixings, an appropriately low lepton flavour violation and the observed dark matter relic density for 10 TeV ≲ vBL ≲ 55 TeV. In addition, the very radiative nature of the set-up signals a strong first order phase transition in the presence of a non-zero temperature.”

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