论文标题
探测未来引力波观测值的中间量表
Probing intermediate scale Froggatt-Nielsen models at future gravitational wave observatories
论文作者
论文摘要
Froggatt-Nielsen（FN）机制中的风味对称性量表受到当前实验的限制非常弱，并且可以躺在几个TEV到Planck量表的任何地方。我们构建了两个最小的，非苏的，紫外线（UV）完整的模型，它们生成FN机构，并使用全局$ u（1）_ {\ rm {fn}} $风味对称性和一个单一的Flavon领域。使用一环有限温度有效电位，我们探讨了Flavon引起的强一级相变（SFOPT）的可能性。 We show that if the flavor symmetry-breaking occurs at intermediate scales $\sim 10^4-10^7$ GeV, then in certain regions of the parameter space, the associated stochastic gravitational wave (GW) background is strong enough to be detected by second generation GW observatories such as the Big Bang Observer (BBO), the Deci-hertz interferometer Gravitational Observatory (DECIGO), the Cosmic Explorer （CE）和爱因斯坦望远镜（ET）。我们确定了最佳检测前景的参数空间的可行区域。尽管两种风味都可以产生可检测到的GW背景，但GW签名不能用于区分它们。
The flavor symmetry-breaking scale in the Froggatt-Nielsen (FN) mechanism is very weakly constrained by present experiments, and can lie anywhere from a few TeV to the Planck scale. We construct two minimal, non-supersymmetric, ultraviolet (UV) complete models that generate the FN mechanism, with a global $U(1)_{\rm{FN}}$ flavor symmetry and a single flavon field. Using the one-loop finite temperature effective potential, we explore the possibility of a strong first order phase transition (SFOPT) induced by the flavon. We show that if the flavor symmetry-breaking occurs at intermediate scales $\sim 10^4-10^7$ GeV, then in certain regions of the parameter space, the associated stochastic gravitational wave (GW) background is strong enough to be detected by second generation GW observatories such as the Big Bang Observer (BBO), the Deci-hertz interferometer Gravitational Observatory (DECIGO), the Cosmic Explorer (CE) and the Einstein Telescope (ET). We identify viable regions of the parameter space for the best detection prospects. While both models of flavor can produce a detectable GW background, the GW signature cannot be used to discriminate between them.
