منابع مشابه
Testable Deviations from Exact Tribimaximal Mixing
A simple relation UPMNS = V † CKM UTB between the lepton and quark mixing matrices (UPMNS and VCKM ) is speculated under an ansatz that UPMNS becomes an exact tribimaximal mixing UTB in a limit VCKM = 1. By using the observed CKM mixing parameters, possible values of neutrino oscillation parameters are estimated: sin θ13 = 0.024 − 0.028, sin 2θ23 = 0.94 − 0.95 and tan θ12 = 0.24− 1.00 depending...
متن کاملNeutrino Tribimaximal Mixing from A4 Alone
Neutrino tribimaximal mixing is obtained from the breaking of A4 to Z3 in the charged-lepton sector and to Z2 in the neutrino sector. To enforce this conflicting pattern, extra particles and symmetries are usually invoked, often accompanied by nonrenormalizable interactions and even extra dimensions. It is shown here in a specific renormalizable model how A4 alone will accomplish this, with onl...
متن کاملTwisted flavors and tribimaximal neutrino mixing.
A new framework for handling flavor symmetry breaking in the neutrino sector is discussed where the source of symmetry breaking is traced to the global property of right-handed neutrinos in extra-dimensional space. Light neutrino phenomenology has rich and robust predictions such as the tribimaximal form of generation mixing, controlled mass spectrum, and no need of flavor mixing couplings in t...
متن کاملPossible Deviation from Exact Tribimaximal Mixing
A simple relation UMNS = V † CKM UTB between the lepton and quark mixing matrices (UMNS and VCKM ) is speculated under an ansatz that UMNS becomes an exact tribimaximal mixing UTB in a limit VCKM = 1. By using the observed CKM mixing parameters, possible values of neutrino oscillation parameters are estimated: sin θ13 = 0.024− 0.028, sin 2θ23 = 0.94− 0.95 and tan θ12 = 0.24− 1.00 depending on p...
متن کاملNear Tribimaximal Neutrino Mixing with ∆(27) Symmetry
The discrete subgroup ∆(27) of SU(3) has the interesting multiplication rule 3×3 = 3̄ + 3̄ + 3̄, which is used to obtain near tribimaximal neutrino mixing. Using present neutrino oscillation data as input, this model predicts that the effective mass mee measured in neutrinoless double beta decay will be 0.14 eV. The non-Abelian discrete subgroup ∆(12) of SU(3) [1], more familiarly known as A4 [2, ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2018
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.98.055030