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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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Predictions for the leptonic Dirac CP violation phase: a systematic phenomenological analysis
I Girardi1, S T Petcov2, A V Titov1
1SISSA/INFN, Via Bonomea 265, 34136 Trieste, Italy.
The European Physical Journal. C, Particles and Fields
|August 1, 2015
Summary
We predict the Dirac phase in neutrino mixing. Measuring this phase precisely, alongside improved neutrino mixing angles, can reveal symmetries in the lepton sector.
Area of Science:
- Particle Physics
- Neutrino Physics
- Beyond Standard Model Physics
Background:
- The Dirac phase is a key parameter in the standard parametrization of the neutrino mixing matrix.
- Understanding neutrino mixing is crucial for probing new physics beyond the Standard Model.
Purpose of the Study:
- Derive predictions for the Dirac phase in the neutrino mixing matrix.
- Investigate the potential of measuring the Dirac phase to uncover lepton sector symmetries.
Main Methods:
- Expressing the Dirac phase as a function of neutrino mixing angles and angles from charged lepton and neutrino mass matrices.
- Considering various symmetry-inspired forms for lepton and neutrino matrices (e.g., tri-bimaximal, bimaximal).
- Constructing likelihood functions for the Dirac phase using current global neutrino oscillation data and future sensitivity projections.
Main Results:
- Predictions for the Dirac phase are derived based on different symmetry assumptions.
- The study confirms that precise measurements of the Dirac phase and mixing angles are vital.
- These measurements can offer unique insights into potential symmetries in the lepton sector.
Conclusions:
- The Dirac phase holds significant potential for discovering lepton flavor symmetries.
- Improved precision in measuring neutrino mixing angles is essential for this discovery.
- This research contributes to the ongoing quest for understanding neutrino properties and fundamental symmetries.
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