论文标题
通过重力波，质子衰减和费米昂质量探测最小的大统一
Probing Minimal Grand Unification through Gravitational Waves, Proton Decay, and Fermion Masses
论文作者
论文摘要
由黑洞和中子恒星直接发现引力波（GWS）的动机，人们对研究其他来源的GW越来越兴趣。其中，来自宇宙弦的GW自然出现在大量的大统一理论（胆量）中，因此特别令人着迷。值得注意的是，一系列的脉冲星阵列（PTA）可能已经在NHz制度中观察到GWS，暗示着在早期宇宙中形成宇宙弦网络，这可能起源于与纯净肠道相关的相变。在这项工作中，我们表明，如果确认了来自PTA的这些观察结果，当与费米昂质量，量规耦合统一和质子衰减约束时，来自宇宙字符串的GWS，则最小的肠道参数空间（10）的参数空间变得非常限制。提出的最小模型具有高度预测性，将在许多即将到来的引力波观测站中进行全面测试。
Motivated by the direct discovery of gravitational waves (GWs) from black holes and neutron stars, there is a growing interest in investigating GWs from other sources. Among them, GWs from cosmic strings are particularly fascinating since they naturally appear in a large class of grand unified theories (GUTs). Remarkably, a series of pulsar-timing arrays (PTAs) might have already observed GWs in the nHz regime, hinting towards forming a cosmic string network in the early universe, which could originate from phase transition associated with the seesaw scale emerging from GUT. In this work, we show that if these observations from PTAs are confirmed, GWs from cosmic strings, when combined with fermion masses, gauge coupling unification, and proton decay constraints, the parameter space of the minimal SO(10) GUT becomes exceedingly restrictive. The proposed minimal model is highly predictive and will be fully tested in a number of upcoming gravitational wave observatories.
