The 3rd Workshop on Ultra-Peripheral Collision Physics

21 Nov 2025, 13:00 → 24 Nov 2025, 23:00 Asia/Shanghai

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:

• Nuclear/nucleon structure 

• Precision tests of QED and BSM physics, including strong-field QED studies driven by intense lasers

• New directions in UPC, conection to heavy-ion physics, synergies with EIC/EicC

• 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。

注册费用：
教师及博士后：2000元/人
学生：1000元/人

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

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Friday, 21 November

13:00 → 22:00 Registration

Saturday, 22 November

08:45 → 10:15 UPC Session 1

Convener: Pengfei Zhuang (Tsinghua University)

08:45 Opening Remarks

Speaker: Enke Wang

09:00 Deciphering the Vector Meson Spin Effect in A+A UPC and diffractive e+A collisions

Speaker: Zhangbu Xu (Kent State University and Brookhaven National Lab)

09:25 Diffractive di-jet production in UPCs

Speaker: Jian Zhou (Shandong University)

09:50 From UV to IR, tracking quantum information loss at colliders

Speaker: Dingyu Shao (Fudan University)

10:15 → 10:55 Photo + Coffee Break

10:55 → 12:10 UPC Session 2

Convener: Xinnian Wang

10:55 Recent progress on CME measurement in heavy-ion collisions

Speaker: Jinhui Chen (Fudan University)

11:20 Machine learning extraction of chiral magnetic transport

Speaker: Jinfeng Liao (INDIANA UNIVERSITY & RBRC)

11:45 Collectivity in heavy-ion collisions at RHIC-STAR

Speaker: Shusu Shi (Central China Normal University)

12:10 → 14:00 Lunch Break

14:00 → 15:40 UPC Session 3

Convener: Daicui Zhou (Central China Normal University)

14:00 原子核光核吸收截面的微观理论研究

Speaker: Yifei Niu (L)

14:25 Photoproduction measurements in ALICE: recent results and future prospects

Speaker: Dieter Roehrich

14:50 Recent UPC Results in CMS

Speaker: Zaochen Ye (South China Normal University)

15:15 Measurements of photon-nuclear interactions at RHIC

Speaker: Chi Yang (Shandong University)

15:40 → 16:10 Coffee Break

16:10 → 17:25 UPC Session 4

Convener: Yuxin Liu (PKU)

16:10 Nuclear deformation effects of vector mesons in UPC

Speaker: Shi Pu (University of Science and Technology of China)

16:35 Nuclear deformation in central nuclear collisions and UPC from Glauber model

Speaker: Weiyao Ke (华中师范大学)

17:00 Multi-task deep learning for studying nuclear structure from UPC vector meson production

Speaker: Jingzong Zhang (复旦大学 现代物理研究所 上海 200433 中国 （理论物理专款上海核物理理论研究中心 上海 200438 中国）)

18:00 → 20:00 Banquet

Sunday, 23 November

09:00 → 10:15 UPC Session 5

Convener: Yi Liao (IQM, South China Normal University)

09:00 强激光驱动产生大角动量粒子源及其核反应机理研究

Speaker: Jianxing Li

09:25 强激光驱动等离子体下的核反应进展与展望

Speaker: Changbo Fu (Fudan University)

09:50 全涡旋粒子强场QED及涡旋电子致核激发

Speaker: Yuanbin Wu

09:00 → 12:00 国产GPU适配

10:15 → 10:45 Coffee Break

10:45 → 12:00 UPC Session 6

Convener: Xingtao Huang (Shandong University)

10:45 Measurements of photon-photon interactions in UPC

Speaker: Wangmei Zha (中国科学技术大学)

11:10 光子-光子相互作用中的方位角不对称性

Speaker: Yajin Zhou (Shandong University)

11:35 Doubly heavy hadron production in ultraperipheral collision

Speaker: Jun Jiang (山东大学)

12:00 → 14:00 Lunch Break

14:00 → 15:40 UPC Session7

Convener: Mei Huang (IHEP, CAS)

14:00 Holographic spin alignment of vector mesons in magnetized plasma

Speaker: Defu Hou (CCNU)

14:25 Electromagnetic fields and quarkonia spin alignment

Speaker: Shu Lin (Sun Yat-Sen University)

14:50 Meson properties under strong magnetic field

Speaker: Shijun Mao (Xian Jiaotong University)

15:15 Heavy-flavor mesons in a strong electric field

Speaker: Jiayun Xiang (中山大学)

15:40 → 16:10 Coffee Break

16:10 → 17:25 UPC Session 8

Convener: Guoliang Ma

16:10 Observation of Baryon Number Transport Without Quarks

Speaker: Zebo Tang (University of Science and Technology of China)

16:35 Recent highlights on open heavy flavor production with ALICE

Speaker: Xiaoming Zhang (Central China Normal University)

17:00 Search for medium response through jet related correlations at LHC

Speaker: Yaxian Mao (Central China Normal University)

Monday, 24 November

09:00 → 10:15 UPC Session 9

Convener: Guangyou Qin

09:00 Search for Hyperon EDM at BESIII

Speaker: Jinlin Fu (University of Chinese Academy of Sciences)

09:25 Revisiting forward di-hadron correlations in forward proton-proton and proton-nucleus collisions

Speaker: Wenbin Zhao (CCNU)

09:50 Unpolarized gluon PDF of the nucleon from lattice QCD in the continuum limit

Speaker: Peng Sun (IMP)

10:15 → 10:45 Coffee Break

10:45 → 12:00 UPC Session 10

Convener: Benwei Zhang

10:45 Hyperon-Nucleon Spectrometer at HIAF

Speaker: Yuxiang Zhao (中国科学院近代物理研究所)

11:10 Semi-inclusive deep inelastic scattering and EicC

Speaker: Tianbo Liu (Shandong University)

11:35 EicC far forward detector and related physics

Speaker: Weizhi Xiong (Shandong University)

12:00 → 14:00 Lunch Break

14:00 → 15:40 UPC Session 11

Convener: Xiaofeng Luo (Central China Normal University)

14:00 跨能量尺度原子核结构实验研究进展及展望

Speaker: Chunjian Zhang (Fudan University)

14:25 Collectivity in small systems

Speaker: Zhenyu Chen (Shandong University)

14:50 Probing the tetrahedral alphaclusters in relativistic O+O collisions

Speaker: Haojie Xu (Huzhou University)

15:15 Hydrodynamization from the full Boltzmann equation

Speaker: Xingjian Lu

15:40 → 16:10 Coffee Break

16:10 → 17:40 UPC Session 12

Convener: Hongxi Xing (South China Normal University)

16:10 Probing the Neutron Skin with Extreme Collision Geometries in Heavy-Ion Collisions

Speaker: Hui Zhang (South China Normal University)

16:35 通过重离子碰撞中逐事件π介子不对称性探测中子皮

Speaker: Xuhua Tian (CCNU)

17:00 Nucleon energy correlators as a probe of light-quark dipole operators at the EIC

Speaker: Haolin Wang (SCNU)

17:25 Closing Remarks and Next Conference