Abstract

We construct a renormalizable B–L standard model (SM) extension with D₅ symmetry in which neutrino mass hierarchies and the tiny neutrino masses are generated at leading order by type I seesaw mechanism. The obtained physical parameters are well consistent with the global fit of neutrino oscillation data given in [1]. The model predicts an effective neutrino mass parameter of 〈m_ee〉 = 3.731 × 10^–3 eV for normal hierarchy (NH) and 〈m_ee〉 = 4.848 × 10^–2 eV for inverted hierarchy (IH) which are well consistent with the recent experimental limits on neutrinoless double beta decay.

中文翻译：

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轻子质量和混合的具有D 5离散对称性的可重整化B-L模型

摘要

我们构建了一个可重整乙-大号与标准模型（SM）扩展d ₅，其中中微子质量等级和微小中微子质量块在由I型跷跷板机制导致顺序产生对称性。获得的物理参数与[1]中给出的中微子振荡数据的整体拟合非常一致。该模型预测<有效中微子质量参数米_EE > = 3.731×10 ^-3伏特用于正常层级（NH）和<米_EE > = 4.848×10 ^-2伏特为倒置层次结构（1H），它们与井一致最近关于中微子双β衰变的实验极限。