Motivated by recent results from neutrino experiments, we study the neutrino masses and mixing in the framework of a SUSY S U ( 5 ) × A 4 model. The hybrid of Type I and Type II seesaw mechanisms leads to the nonzero value of the reactor angle θ 13 ≠ 0 and to the recently disfavored maximal atmospheric angle θ 23 ≠ 4 5 ° by the NOvA experiment. The phenomenological consequences of the model are studied for both normal and inverted mass hierarchies. The obtained ranges for the effective Majorana neutrino mass m β β , the electron neutrino mass m ν e , and the C P violating phase δ C P lie within the current experimental allowed ranges where we find that the normal mass hierarchy is favored over the inverted one.
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机译：根据中微子实验的最新结果，我们研究了SUSY S U（5）×A 4模型框架中的中微子质量和混合。 I型和II型跷跷板机制的混合导致反应堆角度θ13≠0的非零值，并通过NOvA实验导致最近不利的最大大气角度θ23≠4 5°。对于正常和反向质量层次结构，都研究了该模型的现象学后果。获得的有效马约拉纳中微子质量mββ，电子中微子质量mνe和C P违反相δC P的范围在当前实验允许范围内，在该范围内，我们发现正常质量层次优于倒置质量层次。
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