We review and investigate lepton flavor models, stemming from discrete non- Abelian flavor symmetries, described by one or two free model parameters. First, we confront eleven one- and seven two-parameter models with current results on leptonic mixing angles from global fits to neutrino oscillation data. We find that five of the one- and five of the two-parameter models survive the confrontation test at 3 σ . Second, we investigate how these ten one- and two-parameter lepton flavor models may be discriminated at the proposed ESSnuSB experiment in Sweden. We show that the three one-parameter models that predict sin δ CP = 0 can be distinguished from those two that predict | sin δ CP | = 1 by at least 7 σ . Finally, we find that three of the five one-parameter models can be excluded by at least 5 σ and two of the one-parameter as well as at most two of the five two-parameter models can be excluded by at least 3 σ with ESSnuSB if the true values of the leptonic mixing parameters remain close to the present best-fit values.

中文翻译：

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在 ESSnuSB 上测试轻子风味模型

我们审查和研究轻子风味模型，源自离散的非阿贝尔风味对称性，由一两个自由模型参数描述。首先，我们面对 11 个单参数模型和 7 个双参数模型，以及从全局拟合到中微子振荡数据的轻子混合角的当前结果。我们发现一参数模型中的五个模型和二参数模型中的五个模型在 3 σ 的对抗测试中幸存下来。其次，我们研究了在瑞典提议的 ESSnuSB 实验中如何区分这十个单参数和双参数轻子风味模型。我们表明，可以将预测 sin δ CP = 0 的三个单参数模型与预测 | 的那两个模型区分开来。sin δ CP | = 1 至少 7 σ 。最后，