论文标题
$ L_E-L_μ-L_τ$模型中的中微子混合和瘦素发生
Neutrino Mixing and Leptogenesis in a $L_e-L_μ-L_τ$ model
论文作者
论文摘要
我们在SUSY框架中使用三个右中微子进行了标准模型的简单扩展，并带有额外的U（1 $）_ \ text {f} $ Abelian风味对称性，带有非标准Leptonic Charge $ L_E-L_E-L_μ-L_-L_-L_-L_-L_-timent $ for Lepton Doublets和任意右手的右手右手Charges。我们表明该模型能够重现PMNS矩阵的混合角度的实验值以及$ r =Δm_\ text {sun}^2/Δm_\ text {at at at at at at at at}^2 $比率，只有lagrangian免费参数的中等微调。宇宙的重子不对称是通过沉重的右手中微子的CP侵入衰减来通过热静脉生成产生的。我们提出了相关玻尔兹曼方程的详细数值解决方案，该方程占了各种轻子味中不对称分布的影响。
We present a simple extension of the Standard Model with three right-handed neutrinos in a SUSY framework, with an additional U(1$)_\text{F}$ abelian flavor symmetry with a non standard leptonic charge $L_e-L_μ-L_τ$ for lepton doublets and arbitrary right-handed charges. We show that the model is able to reproduce the experimental values of the mixing angles of the PMNS matrix and of the $r=Δm_\text{sun}^2/Δm_\text{atm}^2$ ratio, with only a moderate fine tuning of the Lagrangian free parameters. The baryon asymmetry of the Universe is generated via thermal leptogenesis through CP-violating decays of the heavy right-handed neutrinos. We present a detailed numerical solution of the relevant Boltzmann equation accounting for the impact of the distribution of the asymmetry in the various lepton flavors.
