论文标题
Ligo-Virgo前三个观察跑的对宇宙域墙的影响
Implications for Cosmic Domain Walls from LIGO-Virgo First Three Observing Runs
论文作者
论文摘要
我们通过在高级Ligo和处女座的前三个观察跑步的数据中搜索随机重力波背景（SGWB），对宇宙域壁（DWS）的重力波的归一化能量密度限制。通过采用现象学破碎的幂律模型，我们获得了DWS在峰值频段中生成的SGWB的归一化能量密度的上限，$ 10 \ sim200 $ Hz，并在峰值频率$ f _*= 35 $ Hz处获得最严格的限制$ω__\ text {dw}（f _*= 35 \，\ text {hz}）<1.4 \ times10^{ - 8} $ at $ 95 \％$ $ pusitive级别（cl）。随后，我们在吸引DW结构的吸引力实现中对参数空间的限制进行了限制，DW结构是繁重的轴法模型，该模型可以避免所谓的质量问题。
We put constraints on the normalized energy density in gravitaional waves from cosmic domain walls (DWs) by searching for the stochastic gravitational-wave background (SGWB) in the data of Advanced LIGO and Virgo's first three observing runs. By adopting a phenomenological broken power-law model, we obtain the upper limit of normalized energy density of SGWB generated by DWs in the peak frequency band $10\sim200$ Hz, and get the most stringent limitation at the peak frequency $f_*=35$ Hz, namely $Ω_\text{DW}(f_*=35\,\text{Hz})<1.4\times10^{-8}$ at $95\%$ confidence level (CL). Subsequently, we work out the constraints on the parameter space in the appealing realization of DW structure -- the heavy axion model which can avoid the so-called quality problem.
