AI 中文总结
本研究拓展标准模型构建$\mathbb{Z}_3$对称暗区，通过湮灭、半湮灭等过程实现符合观测的暗物质遗迹丰度与强一阶电弱相变，并探究直接/间接探测及引力波等多信使信号，后者有望被未来空间探测器观测。
AI 中文摘要
我们研究了一种具有$\mathbb{Z}_3$对称性的标准模型扩展方案，该模型包含右手中微子（$N_R$）、主导遗迹密度的暗费米子（$χ$），以及可促成强一阶电弱相变（SFOEWPT）的暗复标量（$S$）。在与强一阶电弱相变相符的广阔参数空间内，通过湮灭、半湮灭以及暗区转换过程的共同作用，可得到符合观测的暗物质遗迹丰度。我们进一步探究了由此产生的多信使信号，包括圈诱导的直接探测信号、通过伽马射线观测的间接探测信号，以及引力波信号，其中引力波信号处于LISA、BBO和DECIGO等未来空间探测器的预计灵敏度范围内。
英文摘要
We investigate a $\mathbb{Z}_3$-symmetric extension of the Standard Model consisting of a right-handed neutrino ($N_R$), a dark fermion ($χ$) that dominates the relic density and a dark complex scalar ($S$) that facilitates a strong first-order electroweak phase transition (SFOEWPT). The observed relic abundance, is achieved through the combined effects of annihilation, semi-annihilation, and dark-sector conversion processes over a broad region of parameter space consistent with a SFOEWPT. We further investigate the resulting multi-messenger signatures, including loop-induced direct detection, indirect detection through gamma-ray observations, and gravitational wave signals, with the latter lying within the projected sensitivities of future space-based detectors such as LISA, BBO, and DECIGO.
Comments30 pages including references, 10 figures, 2 tables
