论文标题

Multiscalar $ b-l $扩展名,基于$ S_4 $的中微子质量和混合的风味对称性

Multiscalar $B-L$ extension based on $S_4$ flavor symmetry for neutrino mass and mixing

论文作者

Vien, V. V., Long, H. N.

论文摘要

具有$ S_4 $对称性的标准型号(SM)的多层和非肾上腺功能化$ B-L $扩展,该$ S_4 $对称成功地解释了最近观察到的中微子振荡数据。微小的中微子质量及其层次结构是通过I型Seesaw机制生成的。该模型重现了中微子混合角度和DIRAC CP违反阶段的最新实验,其中大气角$(θ_{23})$和反应堆角$(θ_{13})$获得最佳拟合值,而太阳角度$(θ_{12}} $ trac cp cp $ n属于$ n of dirac cp $ n of to $Δ$,对于普通层次结构(NH)。对于反向层次结构(ih),$θ_{13} $获得最佳拟合值,$θ_{23} $与$ \ de $一起属于$ 1 \,\ si $范围,而$θ_{12} $属于$ 3 \ $ 3 \,\ si的最佳范围范围。 The effective neutrino masses are predicted to be $\langle m_{ee}\rangle=6.81 \,\, \mbox{meV}$ for NH and $\langle m_{ee}\rangle=48.48\,\, \mbox{meV}$ for IH being in good agreement with the most recent experimental data.

A multiscalar and nonrenormalizable $B-L$ extension of the standard model (SM) with $S_4$ symmetry which successfully explains the recent observed neutrino oscillation data is proposed. The tiny neutrino masses and their hierarchies are generated via the type-I seesaw mechanism. The model reproduces the recent experiments of neutrino mixing angles and Dirac CP violating phase in which the atmospheric angle $(θ_{23})$ and the reactor angle $(θ_{13})$ get the best-fit values while the solar angle $(θ_{12})$ and Dirac CP violating phase ($δ$) belong to $3\, \si $ range of the best-fit value for normal hierarchy (NH). For inverted hierarchy (IH), $θ_{13}$ gets the best-fit value and $θ_{23}$ together with $\de $ belongs to $1\, \si $ range while $θ_{12}$ belongs to $3\, \si $ range of the best-fit value. The effective neutrino masses are predicted to be $\langle m_{ee}\rangle=6.81 \,\, \mbox{meV}$ for NH and $\langle m_{ee}\rangle=48.48\,\, \mbox{meV}$ for IH being in good agreement with the most recent experimental data.

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