The nearly aligned Higgs Effective Field Theory (naHEFT) is based on the general assumption: all deviations in the Higgs boson couplings are originated from quantum one-loop effects of new particles that are integrated out. If the new particles integrated out have the same non-decoupling property, physics of the electroweak symmetry breaking can be then described by several parameters in the naHEFT, so that there is a correlation among the Higgs boson couplings such as hγγ, hWW and hhh couplings. In this paper, we analyze the strongly first-order electroweak phase transition (EWPT) with the condition of sphaleron decoupling and the completion condition of the phase transition, and investigate the relation among the deviations in the Higgs boson couplings and the dynamics of the EWPTs. We also take into account the gravitational wave spectrum as well as the primordial black hole predicted at the EWPT. We show that if the new particles integrated out include charged scalar states future precision measurements of the hγγ coupling can give a useful prediction on the hhh coupling to realize the strongly first-order EWPT. We can explore the nature of EWPT and the new physics behind it by the combination of precision measurements of various Higgs boson couplings at future collider experiments, gravitational wave observations at future space-based interferometers and searches for primordial black holes.

中文翻译：

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探索希格斯有效场论中的环感应一阶电弱相变


几乎对齐的希格斯有效场论 （naHEFT） 基于一般假设：希格斯玻色子耦合中的所有偏差都源于积分出的新粒子的量子单环效应。如果积分出的新粒子具有相同的非解耦特性，则可以通过 naHEFT 中的几个参数来描述电弱对称性破坏的物理特性，因此希格斯玻色子耦合（如 hγγ、hWW 和 hhh 耦合）之间存在相关性。在本文中，我们分析了具有 sphaleron 解耦条件和相变完成条件的强一阶电弱相变 （EWPT），并研究了 Higgs 玻色子耦合偏差与 EWPT 动力学之间的关系。我们还考虑了引力波谱以及在 EWPT 上预测的原始黑洞。我们表明，如果积分出的新粒子包括带电标量态，则未来对 hγγ 耦合的精确测量可以对 hhh 耦合做出有用的预测，以实现强一阶 EWPT。我们可以通过结合未来对撞机实验中各种希格斯玻色子耦合的精确测量、未来天基干涉仪的引力波观测和对原始黑洞的搜索来探索 EWPT 的本质及其背后的新物理学。