论文标题

无菌中微子的主动中微子振荡和双β衰减特性

Active neutrino oscillations and double beta decay characteristics with sterile neutrinos contributions

论文作者

Khruschov, V. V., Fomichev, S. V., Semenov, S. V.

论文摘要

在现象学模型的框架中估计了活性中微子振荡和中微子双β衰减特征的光无菌中微子的贡献,三个活性和三个无菌中微子假设中微子的主要性质。在模型参数的相同测试值下,获得了在中微子数据中应用于中微子数据中的EV-STERILE中微子贡献的主动中微子的外观和生存概率。修改的图形依赖性对电子中微子/抗肿瘤的生存概率以及电子中微子/抗神经诺替尼在MUON中微子/抗神经损伤中出现的概率是距离和其他模型参数在不同的中微子能量下的功能,并且还列出了距离的距离的功能。在考虑的中微子模型的概率曲线与一个无菌中微子的中微子模型的简单正弦曲线之间发现了显着差异。 β衰变和中微子双β衰减的有效电子中微子质量估计有EV-肌中微子的贡献。此外,计算了硒-82的两个中性双β衰减特性。这些发现可用于解释和预测地面实验的结果,以搜索无菌中微子以及中微子双β衰变。

Light sterile neutrinos contributions both for active neutrinos oscillations and neutrinoless double beta decay characteristics are estimated in the framework of the phenomenological model with three active and three sterile neutrinos assuming the Majorana nature of neutrino. Appearance and survival probabilities for active neutrinos with contributions of eV-sterile neutrinos in application to the short-baseline anomalies in neutrino data are obtained at the same test values of the model parameters. Modified graphical dependences for the survival probability of electron neutrinos/antineutrinos and the probability of appearance of electron neutrinos/antineutrinos in muon neutrino/antineutrino beams as functions of distance and other model parameters at different neutrino energies, and also as functions of the ratio of the distance to the neutrino energy are presented. A significant difference was found between the probability curves of the considered neutrino model and the simple sinusoidal curves of the neutrino model with one sterile neutrino. Effective electron neutrino masses for the beta decay and the neutrinoless double beta decay are estimated with account of eV-sterile neutrinos contributions. Besides, the two-neutrino double beta decay characteristics for selenium-82 are calculated. These findings can be used for interpretation and prediction of results of ground-based experiments on search for the sterile neutrinos as well as the neutrinoless double beta decay.

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