AI 中文总结
该研究通过BSMPTv3代码分析实CP守恒2-希格斯二重态模型的真空演化、相关对撞机与引力波现象学，结合约束并讨论不确定性，为通过引力波探测BSM物理提供支撑。
AI 中文摘要
超出标准模型（BSM）的扩展希格斯 sector 可通过电弱重子产生机制动态生成观测到的宇宙重子不对称性，从而解决标准模型最突出的未解决问题之一。为在电弱真空中保留所产生的不对称性，所需的强一阶相变（PTs）会产生引力波（GW），这些引力波可在未来如LISA等实验中被探测到，因此引力波为通过宇宙学过程探测BSM物理提供了令人兴奋的可能性。为最终确定特定的 underlying 物理，充分理解所研究模型的真空演化以及推导引力波谱时涉及的不确定性是不可或缺的。我们使用代码BSMPTv3，该代码可可靠推导具有多个真空方向的扩展希格斯 sector 的有限温度真空结构，并计算所发现的（多个）强一阶相变的引力波谱，我们将其应用于实的、即CP守恒的2-希格斯二重态模型。考虑所有相关的理论和实验约束，我们对其真空演化、相关的对撞机和引力波现象学进行了全面分析，并辅以不确定性讨论。
英文摘要
Extended Higgs sectors beyond the Standard Model (BSM) allow to dynamically generate the observed baryon asymmetry of the Universe through electroweak baryogenesis and thereby solve one of the most prominent open problems of the SM. The strong first-order phase transitions (PTs), required to preserve the generated asymmetry in the electroweak vacuum, source gravitational waves (GW) that can be tested at future experiments like LISA. Gravitational waves hence provide the exciting possibility to probe BSM physics through cosmological processes. In order to be able to eventually pin down the specific underlying physics, a good understanding of the evolution of the vacuum of the model under investigation is indispensable as well as of the uncertainties that are involved in the derivation of the GW spectrum. We use our code BSMPTv3 that allows to reliably derive the finite temperature vacuum structure of extended Higgs sectors with multiple vacuum directions and calculates the GW spectrum of the found (multiple) strong first-order PTs, and we apply it to the real, i.e. CP-conserving, 2-Higgs-Doublet Model. Taking into account all relevant theoretical and experimental constraints, we perform a thorough analysis of its vacuum evolution, the related collider and GW phenomenology and complement it by an uncertainty discussion.
