六维算符辅助的佩奇-奎因相变产生的引力波
Gravitational Waves from Dimension-6 Assisted Peccei - Quinn Phase Transitions
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中文总结 AI 辅助
该研究扩展最小KSVA轴子模型，加入六维算符触发一阶相变，绘制符合观测约束的参数空间，探究引力波信号与暗物质现象学，提出紫外完备模型，为模型无关方法提供依据。
中文摘要 AI 辅助
我们考虑了最小KSVA轴子模型的一种简单、模型无关的扩展，在佩奇-奎因有效势中加入了一个佩奇-奎因对称下不变的六维算符。我们表明该算符可触发一阶相变并研究其宇宙学后果，绘制了符合当前观测约束的参数空间，其中相变产生的引力波信号可被当前及未来的干涉仪观测到，还探究了由此产生的暗物质现象学。最后，我们提出了产生该六维算符的具体紫外完备模型，每个模型都会产生不同的现象学信号，这为我们的模型无关方法提供了动机。
英文摘要
We consider a simple model-independent extension of the minimal KSVZ axion model, augmenting the Peccei - Quinn effective potential with a dimension-6 operator invariant under the Peccei - Quinn symmetry. We show that this operator can trigger a first-order phase transition and study its cosmological consequences. We map out the parameter space, consistent with present observational constraints, in which the phase transition produces a gravitational wave signal observable at current and future interferometers, and we investigate the resulting dark matter phenomenology. Finally, we present specific ultraviolet completions that generate the dimension-6 operator, each leading to distinct phenomenological signatures, which motivates our model-independent approach.
