Axions were first introduced in connection with chiral symmetry but are now being looked for mainly as dark matter. In this paper we introduce a nonabelian analogue of axions which can also be potential candidates for dark matter. Their nonabelian symmetries, which are generalizations of the Peccei-Quinn symmetry, are interesting in their own right. Detailed analysis, using fermion measure and zeta function approaches, shows that these symmetries are not anomalous.

中文翻译：

---

非阿贝尔轴子的类 Peccei-Quinn 对称性

轴子最初是在与手征对称性相关的情况下引入的，但现在主要作为暗物质来寻找。在本文中，我们介绍了轴子的非阿贝尔类似物，它也可以成为暗物质的潜在候选者。它们的非贝尔对称性是 Peccei-Quinn 对称性的推广，它们本身就很有趣。使用费米子测度和 zeta 函数方法的详细分析表明，这些对称性并非异常。