The strong CP problem is solved elegantly by the PQ mechanism which predicts the presence of a light pseudo Goldstone boson called the axion. In supersymmetric theories, the axion is accompanied by its fermionic partner called the axino. It can play an important role in collider, dark matter, and neutrino physics. We review general properties of the axino in relation to the standard axion models, and discuss various phenomenological and cosmological implications.

中文翻译：

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轴心现象学

强大的CP问题可以通过PQ机制很好地解决，该机制预测了称为轴子的轻质拟戈德斯通玻色子的存在。在超对称理论中，轴被其称为费轴的铁氧体伴侣所伴随。它可以在对撞机，暗物质和中微子物理学中发挥重要作用。我们审查了与标准轴突模型相关的轴突的一般属性，并讨论了各种现象学和宇宙学意义。