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arXiv 2402.00429hep-phnucl-th
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核子的电磁与引力形状因子

Electromagnetic and gravitational form factors of the nucleon

Cédric Lorcé

AI总结:

本文回顾核子电磁与引力形状因子的理论基础,讨论其物理解释的最新进展,展望该方向对研究核子质量与自旋结构的作用。

摘要:

形状因子是描述系统内部结构的洛伦兹不变函数。具体而言,它们编码了电荷、能量、动量和压强等物理性质的空间分布方式。核子电磁形状因子已被研究了很长时间,而2018年首次报道了从实验数据中提取核子引力形状因子的成果,这在强子学界引发了极大的热情与关注。在本次报告中,我们回顾了部分理论基础,讨论了这些形状因子物理解释方面的最新进展,并简要展望了我们能从中了解到的核子质量与自旋结构相关信息。

英文摘要:

Form factors are Lorentz invariant functions describing the internal structure of a system. In particular, they encode how physical properties like, e.g., charge, energy, momentum, and pressure are spatially distributed. While nucleon electromagnetic form factors have been studied for a long time, the first extraction of nucleon gravitational form factors from experimental data was reported in 2018, triggering a lot of enthusiasm and attention in the hadronic community. In this contribution we review some theoretical bases, discuss recent developments regarding the physical interpretation of these form factors, and give a glimpse of what can be learned about the mass and spin structure of the nucleon.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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