论文标题
SU（5）轴上的变化
Variations on the SU(5) axion
论文作者
论文摘要
系统地研究了SU（5）大统一理论中轴心状态和Seesaw机制的同时嵌入，无论是最小而翻转的，都被系统地研究了。结果表明，每当B-L作为全局对称性活性时，费米子的PQ电荷都是模棱两可的。然后发现对Seesaw机制的各种实现仅在解决这种歧义的方式方面有所不同。但是，由于歧义性是非物理的，因此所有这些模型均被预测是等效的，因为在低能量尺度上轴突现象学是相同的。
The simultaneous embeddings of an axion state and a seesaw mechanism within the SU(5) Grand Unification Theory, both minimal and flipped, are systematically studied. It is shown that whenever B-L is active as a global symmetry, the PQ charges of the fermions are ambiguous. Various realizations of the seesaw mechanism are then found to differ only in the way this ambiguity is resolved. But since the ambiguity is unphysical, all these models are thereby predicted to be equivalent, in the sense that the axion phenomenology is identical at the low energy scale.
