论文标题
无菌中微子，$0νβ.$衰减和F型$ su（5）$的W玻璃体质量异常
Sterile neutrinos, $0νββ$ decay and the W-boson mass anomaly in a Flipped $SU(5)$ from F-theory
论文作者
论文摘要
我们研究了有效的本地模型的低能特性，该模型使用$ su（5）\ times u（1）_χ$ gauge组，该组在F理论的框架内构建。它的起源可追溯到$ SO（10）$对称性 - 与紧凑型歧管的几何奇异性相关联 - 被内部磁通折断，该通量沿着$ u（1）_χ$方向沿着七大武器打开。拓扑特性和通量参数的选择决定了该模型的无质量频谱是最小的翻转$ su（5）$，并补充了额外的右手电子型状态及其复杂的共轭，$ e^c+\ bar e^c $，以及中性的单声场。随后的对称性分解为$ su（3）\ times su（2）\ times u（1）_y $ gauge group以$ 10+\ overline {10} $表示$ su（5）$的higgs对发生。接下来，我们继续对产生的有效模型进行现象学分析，显着结果是：$ e^c+\ bar e^c $ pap对获得了几个TEV的质量，因此可以解决$G_μ-2$差异。与额外的中性单元相结合的中微子耦合导致一种反向索索的机制，其中额外的光状态可能是合适的暗物质候选者。该模型对$ {0ν}ββ$衰减率的预测可以在不久的将来的实验中进行测试。 Lepton混合矩阵（$ u_ {pmns} $）存在非白血病偏差，这原则上可以解释CDF II Collaboration最近报道的W-Boson质量的新精度测量。
We investigate the low energy properties of an effective local model with flipped $SU(5)\times U(1)_χ$ gauge group, constructed within the framework of F-theory. Its origin is traced back to the $SO(10)$ symmetry -- associated with a geometric singularity of the compactification manifold -- broken by an internal flux which is turned on along the seven-brane in the $U(1)_χ$ direction. Topological properties and the choice of flux parameters determine the massless spectrum of the model to be that of the minimal flipped $SU(5)$ supplemented with an extra right-handed electron-type state and its complex conjugate, $E^c+\bar E^c$, as well as neutral singlet fields. The subsequent symmetry breaking to the $SU(3)\times SU(2)\times U(1)_Y$ gauge group occurs with a Higgs pair in $10+\overline{10}$ representations of $SU(5)$. Next we proceed to the phenomenological analysis of the resulting effective model and the salient outcomes are: The $E^c+\bar E^c$ pair acquires a mass of few TeV and as such could solve the $g_μ-2$ discrepancy. Neutrino couplings to extra neutral singlets lead to an inverse seesaw mechanism where an extra light state could be a suitable dark matter candidate. The predictions of the model for the ${0ν}ββ$ decay rate could be tested in near future experiments. There are non-unitarity deviations from lepton mixing matrix ($U_{PMNS}$), which could in principle explain the new precision measurement of the W-boson mass recently reported by CDF II collaboration.
