论文标题
无尺度SU(5)Super-Guts的低能探针
Low-Energy Probes of No-Scale SU(5) Super-GUTs
论文作者
论文摘要
We explore the possible values of the $μ\to e γ$ branching ratio, $\text{BR}(μ\rightarrow eγ)$, and the electron dipole moment (eEDM), $d_e$, in no-scale SU(5) super-GUT models with the boundary conditions that soft supersymmetry-breaking matter scalar masses vanish at some high input scale, $M_{\rm in} $,高于肠道比例,$ m _ {\ rm gut} $。我们考虑了宇宙学冷暗密度密度的约束,$ω_{CDM} H^2 $,Higgs Mass,$ M_H $,以及$ P \ to K^+ \barν$的终身实验性下限,这些超级型模型中的主要质子衰减模式。将此极限与$ω_{CDM} H^2 $和$ M_H $调和,需要扭曲电荷2/3夸克质量的HIGGS字段,并可能造成电荷-1/3和带电的莱普顿群众,并具有模型依赖的软性超级对称性质量破坏质量。我们考虑了六种可能的超态初始条件的模型,以及夸克风味混合的两种可能选择,将其对质子衰变的预测与忽略混合效应的模型的版本进行了对比。 We find that $τ\left(p\rightarrow K^+ \barν\right)$ may be accessible to the upcoming Hyper-Kamiokande experiment, whereas all the models predict $\text{BR}(μ\rightarrow eγ)$ and $d_e$ below the current and prospective future experimental sensitivities or both flavor choices, when the dark matter density, Higgs mass and current proton考虑衰减约束。但是,在两个模型中有一个有限的区域,其中一种风味选择之一,其中$μ\ to $ \ e $在重核上可能会在将来观察到。我们的结果表明,在我们考虑的一系列无尺度模型中,没有超对称性的风味问题。
We explore the possible values of the $μ\to e γ$ branching ratio, $\text{BR}(μ\rightarrow eγ)$, and the electron dipole moment (eEDM), $d_e$, in no-scale SU(5) super-GUT models with the boundary conditions that soft supersymmetry-breaking matter scalar masses vanish at some high input scale, $M_{\rm in}$, above the GUT scale, $M_{\rm GUT}$. We take into account the constraints from the cosmological cold dark matter density, $Ω_{CDM} h^2$, the Higgs mass, $M_h$, and the experimental lower limit on the lifetime for $p \to K^+ \bar ν$, the dominant proton decay mode in these super-GUT models. Reconciling this limit with $Ω_{CDM} h^2$ and $M_h$ requires the Higgs field responsible for the charge-2/3 quark masses to be twisted, and possibly also that responsible for the charge-1/3 and charged-lepton masses, with model-dependent soft supersymmetry-breaking masses. We consider six possible models for the super-GUT initial conditions, and two possible choices for quark flavor mixing, contrasting their predictions for proton decay with versions of the models in which mixing effects are neglected. We find that $τ\left(p\rightarrow K^+ \barν\right)$ may be accessible to the upcoming Hyper-Kamiokande experiment, whereas all the models predict $\text{BR}(μ\rightarrow eγ)$ and $d_e$ below the current and prospective future experimental sensitivities or both flavor choices, when the dark matter density, Higgs mass and current proton decay constraints are taken into account. However, there are limited regions with one of the flavor choices in two of the models where $μ\to e$ conversion on a heavy nucleus may be observable in the future. Our results indicate that there is no supersymmetric flavor problem in the class of no-scale models we consider.