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Mass Properties of Active and Sterile Neutrinos in a Phenomenological (3 + 1 + 2) Model

机译:(3 + 1 + 2)现象学模型中的活跃和无菌中微子的质量特性

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摘要

A generalized model involving three active neutrinos and three sterile neutrinos of different mass, one being relatively heavy [(3 + 1 + 2) model], is considered on the basis of experimental data, which admit the existence of anomalies beyond the minimally extended standard model featuring three active neutrinos of different mass. Basic properties used to describe massive active and sterile neutrinos are studied along with methods for determining the absolute scale of neutrino masses and for estimating neutrino masses on the basis of available experimental data. In the approximation of CP conservation, admissible values of the elements of the neutrino mass matrix are found from numerical calculations versus the possible values of the mass of one of the sterile neutrinos. The dependences of the mass properties of the neutrinos on the sterile-neutrino mass are constructed with allowance for possible sterile-neutrino contributions. The respective results can be used to interpret and predict results of various neutrino experiments.
机译:在实验数据的基础上,考虑了一个涉及三个活动中微子和三个质量不同的无菌中微子的广义模型,其中一个相对较重[(3 +1 + 2)模型],该模型承认存在超出最小扩展标准的异常具有三个不同质量的活跃中微子的模型。研究了用于描述大量活跃和无菌中微子的基本特性,并根据可用的实验数据确定中微子质量的绝对规模和估计中微子质量的方法。在CP守恒近似中,中微子质量矩阵元素的容许值是通过数值计算与无菌中微子之一的质量可能值进行比较得出的。中微子的质量特性对无菌中微子质量的依赖性是在考虑可能的无菌中微子贡献的基础上构建的。各自的结果可用于解释和预测各种中微子实验的结果。

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