Abstract We construct and study a fundamental field theory of the QCD axion: all couplings flow to zero in the infinite-energy limit realizing the totally asymptotically free (TAF) scenario. Some observable quantities (such as the masses of new quarks and scalars) are predicted at low energies by the TAF requirement in terms of gauge couplings and a vector-boson mass. Here the minimal model of this sort is explored; the axion sector is charged under an SU(2) gauge group and a dark photon appears at low energies. This model can be TAF and feature an absolutely stable vacuum at the same time.

中文翻译：

---

基本的 QCD 轴子模型

摘要 我们构建并研究了 QCD 轴子的基本场论：所有耦合在无限能量极限下流向零，实现完全渐近自由 (TAF) 场景。根据规范耦合和矢量玻色子质量的 TAF 要求，在低能量下可以预测一些可观察量（例如新夸克和标量的质量）。这里探索了这种最小模型；轴子扇区在 SU(2) 规范群下充电，暗光子出现在低能量下。该型号可以是 TAF，同时具有绝对稳定的真空。