New Portals to the Dark Sector

通往黑暗部门的新门户

• 批准号: ST/X003612/1
• 负责人: Ennio Salvioni
• 金额: $ 77.66万
• 依托单位: University of Sussex
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FX003612%2F1
• 关键词: New; Portals; Dark; Sector

The existence of dark matter in the Universe has been firmly established through astrophysical and cosmological measurements, but very little is known about its particle properties. A second mystery concerns the origin of the Higgs field, which we know permeates the Universe, gives every particle its mass and produces Higgs bosons when stirred by particle accelerators, but lacks a more fundamental description.The answers to these big questions may be contained in a dark sector, which has so far escaped detection because it only communicates with the visible part of the Universe through a weak 'portal' interaction.I will develop new theoretical ideas for dark sector physics, focusing on the compelling possibility that the portal is provided directly by some of the particles or forces that have already been observed:-- If one of the heaviest known particles - the Higgs boson, Z boson, or top quark - acts as portal, the dark sector could be discovered using upcoming data from the CERN Large Hadron Collider, the most powerful microscope ever built, or from searches for particle dark matter.-- If the gravitational force acts as portal, measuring the distribution of galaxies in the Universe can give us new insights on the so-far elusive nature of dark matter. This will be achieved using the next generation of galaxy surveys.My research will identify targets for these experiments, which have the potential to revolutionise fundamental physics in the next few years. In addition, I will interpret the delivered data, leading to progress in the construction of models describing Nature at the smallest and largest scales.

通过天体物理学和宇宙学测量，暗物质在宇宙中的存在已被牢固地证实，但对其粒子特性却知之甚少。第二个谜团涉及希格斯场的起源，我们知道希格斯场渗透到宇宙中，赋予每个粒子一定的质量，并在粒子加速器搅拌时产生希格斯玻色子，但缺乏更基本的描述。这些重大问题的答案可能包含在一个暗区，迄今为止尚未被探测到，因为它仅通过微弱的“门户”相互作用与宇宙的可见部分进行通信。我将为暗区物理学发展新的理论思想，重点关注提供门户的令人信服的可能性直接由一些人已经观察到的粒子或力：--如果已知最重的粒子之一——希格斯玻色子、Z玻色子或顶夸克——充当门户，那么可以使用来自欧洲核子研究中心大型强子的即将到来的数据发现暗区对撞机，有史以来最强大的显微镜，或者来自对粒子暗物质的搜索。--如果引力充当门户，测量宇宙中星系的分布可以让我们对迄今为止难以捉摸的本质有新的见解暗物质。这将通过下一代星系调查来实现。我的研究将确定这些实验的目标，这些实验有可能在未来几年内彻底改变基础物理学。此外，我将解释所提供的数据，从而在最小和最大尺度上描述自然的模型的构建方面取得进展。