标题： 通过在电子-正电子对撞机上研究亚阈值$φ$介子光致产出来探索核子结构 显示英文标题

标题： Exploring Nucleon Structure through Sub-threshold $φ$-Meson Photoproduction at an Electron-Positron Collider

摘要： 我们提出通过研究电子-正电子碰撞实验中$\phi$粒子的次阈值光致产出来研究核中的短程相关性（SRCs）。 我们提出了一种直接的实验特征用于 SRCs，这被认为可以通过北京谱仪 III（BESIII）实现。 计算了次阈值产生的截面以及 BESIII 的探测可能性。 这些结果强调了 BESIII 在阐明部分子分布函数核修改背后的基本物理机制方面的巨大潜力。 这种对电子-正电子碰撞中光子-核子相互作用的实验分析代表了未开发的领域，有望在粒子物理和核物理中带来新的应用前景。 显示英文摘要

摘要： We propose to investigate short-range correlations (SRCs) in nuclei by studying sub-threshold photoproduction of $\phi$ particles in an electron-positron collision experiment. We present a direct experimental signature for SRCs, which is deemed achievable using the Beijing Spectrometer III (BESIII). The cross sections for sub-threshold production, as well as the likelihood of detection by BESIII, are calculated. These results underscore the substantial potential of BESIII in elucidating the fundamental physics behind the nuclear modification of parton distribution functions. This proposed experimental analysis of photon-nucleon interactions in electron-positron collisions represents uncharted territory, promising fresh prospects for applications in both particle and nuclear physics.