LHC and gravity

大型强子对撞机和重力

• 批准号: 286161676
• 负责人: Professor Dr. Michael Krämer
• 金额: --
• 依托单位: Fakultät für Mathematik und Naturwissenschaften
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/286161676?language=en
• 关键词: LHC; gravity

Astrophysical observations and explanatory gaps in the standard model of particle physics imply the existence of dark matter and/or a modification of our theory of gravity, space and time. A decision between the dark matter (DM) and modified gravity (MG) approaches is hampered by problems of underdetermination at different levels and of different kinds. In order to specify these problems, we shall continue to analyse in detail the landscape of dark matter and modified gravity models, and the interplay between research in particle physics, astrophysics, and gravity. The plethora of DM and MG approaches, and the corresponding underdetermination, even in the light of the vast amount of relevant collider-based and astrophysical observations, clearly illustrates the complexity of this scientific problem. On the other hand, the overlap of the collider and astrophysical domains may allow for a reduction of the underdetermination, thus leading to a simplification of the model landscape. Our focus will be on dark matter models that can be probed at the Large Hadron Collider (LHC) and the connection between LHC results and theories of gravity. We address the question of different kinds of underdetermination, both in choosing between the two research programs of dark matter and modified gravity, and also in choosing between different models within each program. In particular, we shall provide an assessment of the explanatory power and the explanatory gaps of the dark matter and modified gravity hypotheses, and of the tenability of a strict conceptual distinction between dark matter and modified gravity in the first place. This latter assessment continues one of the main results of the first phase of this project, during which we focused on several specific models that call such a distinction into question.

天体物理观测和粒子物理学标准模型中的解释空白意味着暗物质的存在和/或我们的引力，空间和时间理论的修改。暗物质（DM）和修改的重力（MG）的方法之间的决定是阻碍在不同层次和不同种类的欠确定的问题。为了具体说明这些问题，我们将继续详细分析暗物质和修正的引力模型的前景，以及粒子物理学、天体物理学和引力研究之间的相互作用。过多的DM和MG方法，以及相应的欠确定性，即使在大量的相关的基于对撞机和天体物理观测的光，清楚地说明了这个科学问题的复杂性。另一方面，对撞机和天体物理领域的重叠可能会减少欠定，从而导致模型景观的简化。我们的重点将放在可以在大型强子对撞机（LHC）探测的暗物质模型以及LHC结果与引力理论之间的联系。我们解决了不同类型的欠确定的问题，无论是在暗物质和修正引力的两个研究计划之间的选择，也在每个程序中的不同模型之间的选择。特别是，我们将首先评估暗物质和修正引力假说的解释能力和解释差距，以及暗物质和修正引力之间严格概念区分的可行性。后一项评估延续了该项目第一阶段的主要成果之一，在此期间，我们重点关注了几个对这种区分提出质疑的特定模型。