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arXiv 2011.02157hep-ph
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寻找弱相互作用粒子

The Search for Feebly-Interacting Particles

Gaia Lanfranchi, Maxim Pospelov, Philip Schuster

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42 pages, 9 figures
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摘要：

在新的十年到来之际，粒子物理学面临着解释暗物质之谜、宇宙中物质相对于反物质的起源、电弱尺度的明显微调以及基础物理学的许多其他方面的挑战。也许在寻找答案的过程中出现的最引人注目的前沿是新物理学，其质量尺度与熟悉的物质相当，低于GeV尺度，但相互作用强度非常微弱。解决暗物质和其他基本问题的新理论思想预测了这些尺度下的弱相互作用粒子（FIP），事实上，现有数据甚至可能提供这种可能性的暗示。在大型强子对撞机的教训鼓舞下，一个充满活力的实验计划正在进行中，以发现这种物理学，并以牢固建立在标准模型基础上的系统理论方法为指导。我们概述了这些努力，他们的动机，以及十年的目标，动画社区参与寻找FIPs，特别关注基于加速器的实验。

英文摘要：

At the dawn of a new decade, particle physics faces the challenge of explaining the mystery of dark matter, the origin of matter over antimatter in the Universe, the apparent fine-tuning of the electro-weak scale, and many other aspects of fundamental physics. Perhaps the most striking frontier to emerge in the search for answers involves new physics at mass scales comparable to familiar matter, below the GeV scale, but with very feeble interaction strength. New theoretical ideas to address dark matter and other fundamental questions predict such feebly interacting particles (FIPs) at these scales, and indeed, existing data may even provide hints of this possibility. Emboldened by the lessons of the LHC, a vibrant experimental program to discover such physics is under way, guided by a systematic theoretical approach firmly grounded on the underlying principles of the Standard Model. We give an overview of these efforts, their motivations, and the decadal goals that animate the community involved in the search for FIPs, with special focus on accelerator-based experiments.

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