从CMB到LHC：具有规范标度对称性的混合暴胀模型
From CMB to LHC: A hybrid inflation model with gauged scale symmetry
- University of Chinese Academy of Sciences（中国科学院大学）
- Chinese Academy of Sciences（中国科学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
提出基于规范标度对称性的混合暴胀模型，以类轴子场驱动暴胀、希格斯场触发对称性破缺，并找到同时符合CMB与LHC数据的参数区域，实现暴胀与电弱尺度间的动力学关联。
AI中文摘要：
我们提出了一种基于规范标度对称性的混合暴胀模型，其中类轴子场驱动暴胀，而标准模型希格斯场充当瀑布场。在慢滚暴胀期间，希格斯场被困在电弱对称真空中。当暴胀子达到临界值时，希格斯场获得非零真空期望值，并通过瀑布动力学触发电弱对称性破缺（EWSB）。我们确定了可行的参数区域，这些区域同时满足当前宇宙微波背景观测和大型强子对撞机的希格斯数据。弛豫机制通过减小暴胀期间所需的大真空能量贡献，将暴胀尺度与电弱尺度联系起来。因此，我们的框架为暴胀与电弱对称性破缺之间提供了动力学联系。
英文摘要：
We propose a hybrid inflation model based on gauged scale symmetry, in which an axion-like field drives inflation while the Standard Model Higgs serves as the waterfall field. During slow-roll inflation, the Higgs is trapped in the electroweak-symmetric vacuum. When the inflaton reaches a critical value, the Higgs acquires a nonzero vacuum expectation value and and triggers electroweak symmetry breaking (EWSB) through the waterfall dynamics. We identify viable parameter regions that simultaneously accommodate current cosmic microwave background observations and Higgs data from the Large Hadron Collider. The relaxation mechanism connects the inflationary and electroweak scales by reducing the large vacuum-energy contribution required during inflation. Our framework thus provides a dynamical connection between inflation and EWSB.
