论文标题
从Nanograv到Ligo，具有亚稳态的宇宙弦
From NANOGrav to LIGO with metastable cosmic strings
论文作者
论文摘要
我们根据亚稳态宇宙字符串的随机重力波背景来解释最近的纳米氏菌结果。观察到的随机信号的振幅可以转化为宇宙弦张力的范围，并且在大统一理论中产生的磁单元素质量。在参数空间的大量部分中，这种解释预测了地面干涉仪的频带中的大型随机重力波信号，可以在不久的将来探测。我们面对这些结果，从成功的通货膨胀，瘦肉生成和暗物质的预测中，量测量的B-L对称性自发断裂。
We interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand unification. In a sizable part of the parameter space, this interpretation predicts a large stochastic gravitational wave signal in the frequency band of ground-based interferometers, which can be probed in the very near future. We confront these results with predictions from successful inflation, leptogenesis and dark matter from the spontaneous breaking of a gauged B-L symmetry.
