论文标题
两种希格斯双重双线，有效的相互作用和强大的一阶电子相变
Two Higgs doublets, Effective Interactions and a Strong First-Order Electroweak Phase Transition
论文作者
论文摘要
众所周知，II型Higgs双重双体模型（2HDM）可能难以促进早期宇宙中强大的一阶电子相变，同时出于许多原因，理论上仍然具有吸引人的场景。我们从其他新物理学的角度分析了这一明显的缺口。从一致的尺寸-6有效的场理论HIGGS潜在的扩展开始，我们确定了HIGGS的潜在扩展，这些扩展提供了实现强大的一阶电子相变所需的必要额外贡献，并追踪其对大型强子对撞机的现象学意义。顺便说一句，我们根据预期的2HDM现象学评估尺寸6近似值的可靠性。特别是，我们专注于Higgs对生产（共振和非共振）的作用以及在最终状态下预期的干扰效应，这是2HDM Exotics发现的主要候选者。
It is well-known that type II two Higgs doublet models (2HDMs) can struggle to facilitate a strong first-order electroweak phase transition in the early universe whilst remaining theoretically appealing scenarios for many reasons. We analyse this apparent shortfall from the perspective of additional new physics. Starting from a consistent dimension-6 effective field theory Higgs potential extension, we identify the Higgs potential extensions that provide the necessary additional contributions required to achieve a strong first-order electroweak phase transition and trace their phenomenological implications for the Large Hadron Collider. In passing, we critically assess the reliability of the dimension-6 approximation depending on the expected 2HDM phenomenology. In particular, we focus on the role of Higgs pair production (resonant and non-resonant) and interference effects expected in top final states, which are the prime candidates of 2HDM exotics discoveries.
