论文标题

模块化$ a_4 $对称倒数seesaw型号,带有$ su(2)_l $多重字段

Modular $A_4$ symmetric inverse seesaw model with $SU(2)_L$ multiplet fields

论文作者

Nomura, Takaaki, Okada, Hiroshi

论文摘要

我们提出了一个带有大$ su(2)_l $多重组的逆Seesaw模型,应用模块化$ a_4 $对称性,其中$ su(2)_l $ Quartet和Septet Fermions被引入对称下的三重态。四重奏的中性成分有助于质量基质,用于逆向索索机理和涉及隔膜的相互作用,引起了这些额外费物的主要质量术语。尽管质量矩阵中有几个自由参数,我们可以在中微子领域(例如CP阶段,中微子质量和中微子质量和有效质量的中微子双β型衰减)中获得一些预测,尤其是围绕由字符串理论激发的模量固定点。

We propose an inverse seesaw model with large $SU(2)_L$ multiplets applying modular $A_4$ symmetry where $SU(2)_L$ quartet and septet fermions are introduced as triplets under the symmetry. The neutral components of the quartet contribute to mass matrix for inverse seesaw mechanism and interactions involving the septet induce Majorana mass terms of these extra fermions. Although there are several free parameters in the mass matrix we can obtain some predictions for observables in neutrino sector such as CP phases, sum of neutrino mass and effective mass for neutrinoless double beta decay, especially around fixed points of modulus motivated by string theories.

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