Study of a tri-direct littlest seesaw model at MOMENT

Abstract

The flavour symmetry succeeds in explaining the current global fit results. Flavour-symmetry models can be tested by the future experiments that improve the precision of neutrino oscillation parameters, \textit{such as} the MuOn-decay MEdium baseline NeuTrino beam experiment (MOMENT). In this work, we consider tri-direct littlest seesaw (TDLS) models for a case study, and analyze how much MOMENT can extend our knowledge on the TDLS model. We find that measurements of ${\theta }_{23}$ and $\delta$ are crucial for MOMENT to exclude the model at more than $5\sigma$ confidence level, if the best fit values in the last global analysis result is confirmed. Moreover, the $3\sigma$ precision of model parameters can be improved at MOMENT by at least a factor of two. Finally, we project the surface at the $3\sigma$ confidence level from the model-parameter space to the oscillation-parameter space, and find the potential of MOMENT to observe the sum rule between ${\theta }_{23}$ and $\delta$ predicted by TDLS.

References in corpus (4)

• Large gauge invariant non-standard neutrino interactions
• Probing Direct and Indirect Unitarity Violation in Future Accelerator Neutrino Facilities
• Lepton Mixing Predictions from $S_4$ in the Tri-Direct CP approach to Two Right-handed Neutrino Models
• Confronting Tri-direct CP-symmetry models to neutrino oscillation experiments

Cited by in corpus (2)

• Precision measurements and tau neutrino physics in a future accelerator neutrino experiment
• Flavour Symmetry Embedded -- GLoBES (FaSE-GLoBES)