The Neutrinos of the Neighboring Brane
A. Nicolaidis

TL;DR
This paper proposes a spacetime-structure-based model involving two coexisting branes to explain neutrino oscillations, predicting sterile neutrino transitions and fitting experimental data with specific mass relations.
Contribution
It introduces a novel brane-world model linking neutrino oscillations to spacetime structure, incorporating both Majorana and Dirac couplings across branes.
Findings
Predicts sterile neutrino transition due to brane coupling
Explains solar and atmospheric neutrino data with specific mass ratios
Aligns with tri-bimaximal mixing angles
Abstract
The phenomenon of neutrino oscillations is studied usually as a mixing between the flavor neutrinos and the neutrinos having a definite mass. The mixing angles and the mass eigenvalues are treated independently in order to accommodate the experimental data. We suggest that neutrino oscillations are connected to the structure of spacetime. We expand on a recently proposed model, where two "mirror" branes coexist. One brane hosts left-handed particles (our brane), while the other brane hosts right-handed particles. Majorana-type couplings mixes neutrinos in an individual brane, while Dirac-type couplings mixes neutrinos across the brares. We first focus our attention in a single brane. The mass matrix, determined by the Majorana mass, leads to mass eigenstates and further to mixing angles identical to the mixing angles proposed by the tri-bimaximal mixing. When we include the Dirac-type…
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Taxonomy
TopicsNeutrino Physics Research · Astrophysics and Cosmic Phenomena · Particle physics theoretical and experimental studies
