Tetra-maximal Neutrino Mixing and Its Implications on Neutrino Oscillations and Collider Signatures

Abstract

We propose a novel neutrino mixing pattern in terms of only two small integers 1 and 2 together with their square roots and the imaginary number $i$. This ansatz is referred to as the "tetra-maximal" mixing because it can be expressed as a product of four rotation matrices, whose mixing angles are all π/4 in the complex plane. It predicts θ_{12} = \arctan(2-\sqrt{2}) \approx 30.4^\circ, θ_{13} = \arcsin[(\sqrt{2}-1)/(2\sqrt{2})] \approx 8.4^\circ, θ_{23} = 45^\circ and δ=90^\circ in the standard parametrization, and the Jarlskog invariant of leptonic CP violation is found to be {\cal J} = 1/32. These results are compatible with current data and can soon be tested in a variety of neutrino oscillation experiments. Implications of the tetra-maximal neutrino mixing on the decays of doubly-charged Higgs bosons H^{\pm\pm} -> l^\pm_αl^\pm_β(for α, β= e, μ, τ) are also discussed in the triplet seesaw mechanism at the TeV scale, which will be explored at the upcoming LHC.

RevTex 11 pages. Minor changes made. Accepted for publication in Phys. Rev. D (Rapid Communication)

References in corpus (14)

• Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC
• Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC
• Neutrino mass hierarchy and Majorana CP phases within the Higgs triplet model at the LHC
• Direct determination of neutrino mass parameters at future colliders
• Testing neutrino masses in little Higgs models via discovery of doubly charged Higgs at LHC
• Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider
• Implications of Leptonic Unitarity Violation at Neutrino Telescopes
• Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider
• Towards Determination of the Initial Flavor Composition of Ultrahigh-energy Neutrino Fluxes with Neutrino Telescopes
• Neutrino Telescopes as a Probe of Broken $\mu$-$\tau$ Symmetry
• Same-sign single dilepton productions at the LHC
• Interference bands in decays of doubly-charged Higgs bosons to dileptons in the minimal type-II seesaw model at the TeV scale
• Leptonic CP Violation Induced by Approximately mu-tau Symmetric Seesaw Mechanism
• Neutrino telescopes as a probe of active and sterile neutrino mixings

Cited by in corpus (13)

• Possible Alternatives to Tri-bimaximal Mixing
• Comparing Trimaximal Mixing and Its Variants with Deviations from Tri-bimaximal Mixing
• Implications of Leptonic Unitarity Violation at Neutrino Telescopes
• Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider
• A Generic Diagonalization of the 3X3 Neutrino Mass Matrix and Its Implications on the mu-tau Flavor Symmetry and Maximal CP Violation
• The $\mu$-$\tau$ reflection symmetry of Majorana neutrinos
• Theoretical Overview of Neutrino Properties
• Perturbations to μ-τ symmetry in neutrino mixing
• Resolving the octant of theta_{23} via radiative mu-tau symmetry breaking
• Interference bands in decays of doubly-charged Higgs bosons to dileptons in the minimal type-II seesaw model at the TeV scale
• Intrinsic Deviation from the Tri-bimaximal Neutrino Mixing in a Class of A_4 Flavor Models
• Theoretical Overview on the Flavor Issues of Massive Neutrinos
• A Nearest-neighbor Expansion of Lepton Flavor Mixing in Powers of the $\mu$-$\tau$ Permutation Symmetry Breaking Effect