Ultra-peripheral collisions (UPCs) occur when relativistic heavy ions pass each other without overlapping. This process turns their intense electromagnetic fields into streams of quasi-real photons, enabling photon-induced processes in a clean nuclear environment. UPCs provide a unique laboratory to study a wide range of fundamental phenomena, including nuclear/nucleon structure, quantum electrodynamics (QED) under extreme conditions, and physics beyond the Standard Model.
The physics explored in UPCs is highly complementary to the goals of the future Electron-Ion Collider (EIC) and the planned Polarized Electron-Ion Collider in China (EicC). Results from UPCs offer critical input and benchmarks for future electron-ion scattering experiments, helping to refine our understanding of hadron structure and the non-linear dynamics of QCD in the high-density regime.
The 3rd Workshop on Ultra-Peripheral Collision Physics will be held in Guangzhou from 21st to 24th November, 2025. The topics of the workshop include but are not limited to:
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Nuclear/nucleon structure
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Precision tests of QED and BSM physics, including strong-field QED studies driven by intense lasers
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New directions in UPC, conection to heavy-ion physics, synergies with EIC/EicC
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Properties of quark matter under extreme electromagnetic fields
Local organizing committee:
Hongxi Xing (hxing@m.scnu.edu.cn)
Shuai Yang (syang@m.scnu.edu.cn)
Zaochen Ye (zaochen.ye@m.scnu.edu.cn)
尊敬的各位专家、学者同仁：
我们诚挚邀请您参加将于2025年11月21日至24日在广州举办的“第三届超周边碰撞物理研讨会”。其中，11月21日为注册报到日。研讨会将深入探讨超周边碰撞物理及其在粒子物理、核物理和强场物理领域的相关实验和理论进展，旨在促进不同领域围绕UPC物理研究的交流与合作。
会议地点、注册信息以及日程安排，将于近期在会议网站/后续通知中公布。
主办单位
华南师范大学 量子物质研究院
核物理与核技术全国重点实验室
地方会务组
- 邢宏喜、杨帅、叶早晨
- 会务秘书：陈丽婷
