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Repressing anarchy in neutrino mass textures

机译:在中微子群体纹理中压制无政府状态

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A bstract The recent results that θ ~(13)is relatively large, of the order of the previous upper bound, and the indications of a sizable deviation of θ ~(23)from the maximal value are in agreement with the predictions of Anarchy in the lepton sector. The quark and charged lepton hierarchies can then be reproduced in a SU(5) GUT context by attributing non-vanishing U(1)~(FN)charges, different for each family, only to the SU(5) tenplet states. The fact that the observed mass hierarchies are stronger for up quarks than for down quarks and charged leptons supports this idea. As discussed in the past, in the flexible context of SU(5) ? U(1)~(FN), different patterns of charges can be adopted going from Anarchy to various types of hierarchy. We revisit this approach by also considering new models and we compare all versions to the present data. As a result we confirm that, by relaxing the ansatz of equal U(1)~(FN)charges for all SU(5) pentaplets and singlets, better agreement with the data than for Anarchy is obtained without increasing the model complexity. We also present the distributions obtained in the different models for the Dirac CP-violating phase. Finally we discuss the relative merits of these simple models.
机译:Bstract最近的结果,θ〜(13)相对较大,上述上限的顺序,以及来自最大值的θ〜(23)的相当偏差的指示与无政府状体的预测一致勒佩塞特。然后可以通过归因于每个家庭的非消失的U(1)〜(FN)收费,不同于SU(5)个单位,以在SU(5)肠道上下文中再现Quark和Charged Lepton层次结构。观察到的质量等级的事实比向上夸克更强,而不是向下夸克,并指控的Leptons支持这个想法。正如过去讨论的那样,在SU(5)的灵活背景下? U(1)〜(FN),可以采用不同的电荷模式从无政府状态到各种类型的层次结构。我们还通过考虑新模型来重新审视此方法,并将所有版本与当前数据进行比较。因此,我们确认,通过放松所有SU(5)PentPlets和Singlets的等于U(1)〜(FN)费用的ansatz,获得了与数据的达成更好,而不是增加模型复杂性。我们还提出了在违反阶段的不同模型中获得的分布。最后,我们讨论了这些简单模型的相对优点。

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