Next-to-tribimaximal mixing against CP violation and baryon asymmetry signs

Abstract

Four next-to-tribimaximal (NTBM) mixing patterns are widely considered as the feasible candidates for the observed leptonic mixing structure. With the recent measurements from T2K, as well as intensive global fits, the interval of $\sin {\delta }_{CP}>0$ for the Dirac CP-violating phase is persistently small in the normal ordering while $\sin {\delta }_{CP}<0$ is successively obtained up to $3\sigma$ level in the inverted ordering. In this paper, we advocate the fitting results of Dirac CP-violating phase as a constraint, and show that, it can basically rule out half of the regions allowed by the constraint from three mixing angles only. In addition, given the small $\sin {\delta }_{CP}>0$ interval, we find that a unique NTBM pattern can be selected out of the four candidates within $3\sigma$ uncertainty of the latest NuFIT 5.1, when the patterns are exposed to a Yukawa texture-independent leptogenesis for the baryon asymmetry of the Universe. For the surviving pattern, we find an interesting correlation between the Dirac CP-violating phase and the octant of atmospheric angle ${\theta }_{23}$ , where ${\theta }_{23}>45^{\circ }$ can be predicted once $5\pi /6<{\delta }_{CP}<\pi$ in the normal ordering can be confirmed in the future measurements.

arXiv comment8 pages, 4 figures, Published version in PRD

References in corpus (43)

• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• Tri-Bimaximal Mixing and the Neutrino Oscillation Data
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• Leptogenesis
• Discrete Flavor Symmetries and Models of Neutrino Mixing
• Neutrino Mass and Mixing with Discrete Symmetry
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Improved search for muon-neutrino to electron-neutrino oscillations in MINOS
• 2020 Global reassessment of the neutrino oscillation picture
• Bi-Maximal Mixing of Three Neutrinos
• Constraint on the Matter-Antimatter Symmetry-Violating Phase in Neutrino Oscillations
• Flavor structures of charged fermions and massive neutrinos
• Leptonic CP violation
• Current unknowns in the three neutrino framework
• Search for CP violation in Neutrino and Antineutrino Oscillations by the T2K experiment with $2.2\times 10^{21}$ protons on target
• Comparing Trimaximal Mixing and Its Variants with Deviations from Tri-bimaximal Mixing
• A Bridge between CP violation at Low Energies and Leptogenesis
• Minimal Modification to Tri-bimaximal Mixing
• Neutrino Mass and Baryon Asymmetry from Dirac Seesaw
• Determining See-Saw Parameters from Weak Scale Measurements?
• A simple connection between neutrino oscillation and leptogenesis
• Leptogenesis without CP Violation at Low Energies
• Naturally Small Dirac Neutrino Mass with Intermediate $SU(2{)}_L$ Multiplet Fields
• Simple two Parameter Description of Lepton Mixing
• Leptogenesis from Low Energy $CP$ Violation
• Getting at large theta_13 with almost maximal theta_23 from tri-bimaximal mixing
• Neutrino masses and the baryon asymmetry
• Systematic search for successful lepton mixing patterns with nonzero theta_13
• Realistic Tri-Bi-Maximal neutrino mixing
• Dirac Neutrinos, Dark Energy and Baryon Asymmetry
• Flavored Non-Minimal Left-Right Symmetric Model Fermion Masses and Mixings
• Modifications to the neutrino mixing from the mu-tau reflection symmetry
• Prediction of leptonic CP phase from perturbatively modified tribimaximal (or bimaximal) mixing
• Bridging resonant leptogenesis and low-energy CP violation with an RGE-modified seesaw relation
• Leptogenesis from the Asymmetric Texture
• Consistency of perturbed Tribimaximal, Bimaximal and Democratic mixing with Neutrino mixing data
• A direct link between unflavored leptogenesis and low-energy CP violation via the one-loop quantum corrections
• Freeze-in Dirac neutrinogenesis: thermal leptonic CP asymmetry
• Model independent Analysis of Dirac CP Violating Phase for some well known mixing scenarios
• A Systematic Analysis of Perturbations for Hexagonal Mixing Matrix

Cited by in corpus (3)

• Recent Progress in Leptonic and Semileptonic Decays of Charmed Hadrons
• Effective neutrino number shift from keV-vacuum neutrinophilic 2HDM
• Confronting the prediction of leptonic Dirac CP-violating phase with experiments