Reactor and Atmospheric Neutrino Mixing Angles' Correlation as a Probe for New Physics

Abstract

We performed a simulation on the DUNE experiment to probe the capability of future neutrino long-baseline experiments' ability to constrain the parameter space of high-energy models by using the correlation between the atmospheric and reactor mixing angles. As an example, we took the Tetrahedral Flavour Symmetry model, which predicts a strong relation between the non-zero value of ${\theta }_{13}$ and deviation of ${\theta }_{23}$ from the maximality. We show that in this case, the model can realistically be excluded in more than $3\sigma$ for most of the parameter space. We also study the octant degeneracy at DUNE and its impact on the sensitivity of such models.

arXiv comment5 pages, 6 figures 1 table

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