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.

宇宙中暗物质的存在已经通过天体物理学和宇宙学测量得到了牢固的确立，但对它的粒子性质知之甚少。第二个谜团与希格斯场的起源有关。我们知道，希格斯场弥漫在宇宙中，赋予每个粒子质量，并在粒子加速器的搅拌下产生希格斯玻色子，但缺乏更基本的描述。这些大问题的答案可能包含在一个黑暗的扇区中，到目前为止还没有被探测到，因为它只通过一个微弱的“门户”相互作用与宇宙的可见部分通信。暗区物理学的想法，专注于令人信服的可能性，即门户网站是由一些已经观察到的粒子或力量直接提供的：-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-作为门户网站，暗区可能会被发现使用即将到来的数据从欧洲核子研究中心大型强子对撞机，有史以来最强大的显微镜建造，或从粒子暗物质的搜索。如果引力作为入口，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暗物质性质有新的认识。这将通过下一代星系巡天来实现。我的研究将为这些实验确定目标，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构建方面取得进展。