论文标题
引力波对超对称大统一的含义
Implications of Gravitational Waves for Supersymmetric Grand Unification
论文作者
论文摘要
基于$ SO（10）$的超对称性大统一是超出标准模型的物理学中最有吸引力的范例之一。受到最近的Nanograv信号的启发，我们讨论了检测宇宙字符串网络为$ SO（10）$ Grand Unification发出的随机引力背景的含义。从具有多个对称性破坏的最小模型开始，我们表明它通常更喜欢高于$ 10^{14} \，\ mathrm {Gev} $高于$ 10^{14} \，这受到可观察到的原始引力波的青睐。观察到的光谱可以潜在地缩小宇宙弦量表的可能范围，并通过需要量规耦合统一来限制统一耦合和统一量表。作为高宇宙弦量表的间接结果，单极丰度将非平凡的约束放在了该理论上。这些是质子衰减约束和探测超对称$ SO（10）$统一理论的不同方面的补充。
Supersymmetric grand unification based on $SO(10)$ is one of the most attractive paradigms in physics beyond the Standard Model. Inspired by the recent NANOGrav signal, we discuss the implications of detecting a stochastic gravitational wave background emitted by a network of cosmic strings for the $SO(10)$ grand unification. Starting from a minimal model with multiple steps of symmetry breaking, we show that it generally prefers a high intermediate scale above $10^{14}\, \mathrm{GeV}$ that is favored by observable primordial gravitational waves. The observed spectrum can potentially narrow the possible range of the cosmic string scale and restricts the unified couplings and the unification scale by requiring gauge coupling unification. As an indirect consequence of the high cosmic string scale, the monopole abundance places non-trivial constraints on the theory. These are complementary to the proton decay constraints and probe different facets of supersymmetric $SO(10)$ unification theories.
