论文标题
弦乐启发的电动轴的一致性，带有宇宙双折射
Consistency of the string inspired electroweak axion with cosmic birefringence
论文作者
论文摘要
我们从最近报道的具有一般衰变常数的轴突样颗粒上的宇宙双折射中重新审视了约束。特别关注模型参数空间的自然性，该空间在文献中被忽略了。我们表明，Electroweak Axion自然可以用字符串理论启发的衰减常数$ f_a \ simeq 10^{16} $ GEV来解释观察到的宇宙双折射。
We revisit the constraint from the recently reported cosmic birefringence on axion-like particles with a general decay constant. A particular attention is paid to the naturalness of the model parameter space, which has been overlooked in the literature. We show that the observed cosmic birefringence is naturally explained by the electroweak axion with a string-theory inspired decay constant $F_A\simeq 10^{16}$ GeV.
