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New Simple A4 Neutrino Model for Nonzero θ_(13) and Large δCP

机译:非零θ_(13)和大ΔCP的新简单A4中微子模型

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In a new simple application of the non-Abelian discrete symmetry A4 to charged-lepton and neutrino mass matrices, we show that for the current experimental central value of sin2 2θ13 ? 0.1, leptonic CP violation is necessarily large, i.e.|tanδCP| > 1.3. We also consider T_7 model with one parameter to be complex, thus allowing for one Dirac CP phase δ_(CP) and two Majorana CP phases α_(1,2). We find a slight modification to this correlation as a function of δ_(CP). For a given set of input values of Δm_(21)~2, Δm_(32)~2, θ_(12), and θ_(13), we obtain sin~2 2θ_(23) and m_(ee) (the effective Majorana neutrino mass in neutrinoless double beta decay) as functions of tanδ_(CP). We find that the structure of this model always yields small |tanδ_(CP)|.
机译:在非阿比越道离散对称A4到充电 - Lepton和中微子大规模矩阵的新简单应用中,我们表明,对于当前SIN22θ13的实验中心值? 0.1,Leptonic CP违规必须大,即|TanδCP| > 1.3。我们还考虑使用一个参数复杂的T_7模型,从而允许一个DIRAC CP相位Δ_(CP)和两个Majorana CP相位α_(1,2)。我们发现与Δ_(CP)的函数的函数略微修改。对于ΔM_(21)〜2,ΔM_(32)〜2,θ_(12)和θ_(13)的给定的输入值集,我们获得SIN〜22θ_(23)和M_(EE)(有效Majorana Neutrino Mass in中微子双β腐烂)作为Tanδ_(CP)的功能。我们发现该模型的结构总是产生小的|Tanδ_(CP)|。

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