发表机构
King’s College London; University of Manchester（伦敦国王学院; 曼彻斯特大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究未来对撞机上希格斯门户算子的可区分性，发现离壳高维算子可通过HL-LHC、FCC-ee和FCC-hh的联合测量加以区分，展示了精确与高能探索的互补性。
AI 中文摘要
如果发现希格斯玻色子与一个隐藏的暗扇区耦合，那么就必须确定负责这一耦合的希格斯门户的性质。最小化的、边缘的希格斯门户算子能否与涉及高维算子的希格斯门户相互作用区分开来？对于具有到轻暗扇区的在壳不可见衰变的希格斯门户来说，这不太可能；但对于阈值以上的离壳希格斯门户，其中暗扇区太重而无法对不可见的希格斯衰变宽度做出贡献，我们发现，通过结合HL-LHC、FCC-ee和FCC-hh的综合计划中的测量，高维希格斯门户算子原则上可以被区分。这说明了精确测量和高能探索在现象学上刻画希格斯门户相互作用以及探测电弱尺度与隐藏宇宙之间可能联系方面的互补性。
英文摘要
Should the Higgs boson be found to couple to a hidden dark sector, it will become necessary to determine the nature of the Higgs portal responsible. Could the minimal, marginal Higgs portal operator be distinguished from a Higgs portal interaction involving a higher-dimensional operator? This is unlikely for Higgs portals with on-shell invisible decays to light dark sectors, but for an off-shell Higgs portal above threshold, where the dark sector is too heavy to contribute to the invisible Higgs decay width, we find that the higher-dimensional Higgs portal operators could in principle be differentiated by combining measurements across the integrated programme of HL-LHC, FCC-ee, and FCC-hh. This illustrates the complementarity of precision and high-energy exploration to phenomenologically profile Higgs portal interactions and probe possible connections between the electroweak scale and a hidden universe.
Comments24 pages, 5 figures and 3 tables
