Electron-Ion Collider in China
Creators: name: Anderle, Daniele P.
name: Bertone, Valerio
name: Cao, Xu
name: Chang, Lei
name: Chang, Ningbo
name: Chen, Gu
name: Chen, Xurong
name: Chen, Zhuojun
name: Cui, Zhufang
name: Dai, Lingyun
name: Deng, Weitian
name: Ding, Minghui
name: Feng, Xu
name: Gong, Chang
name: Gui, Longcheng
name: Guo, Feng-Kun
name: Han, Chengdong
name: He, Jun
name: Hou, Tie-Jiun
name: Huang, Hongxia
name: Huang, Yin
name: Kumerički, Krešimir
name: Kaptari, L. P.
name: Li, Demin
name: Li, Hengne
name: Li, Minxiang
name: Li, Xueqian
name: Liang, Yutie
name: Liang, Zuotang
name: Liu, Chen
name: Liu, Chuan
name: Liu, Guoming
name: Liu, Jie
name: Liu, Liuming
name: Liu, Xiang
name: Liu, Tianbo
name: Luo, Xiaofeng
name: Lyu, Zhun
name: Ma, Boqiang
name: Ma, Fu
name: Ma, Jianping
name: Ma, Yugang
name: Mao, Lijun
name: Mezrag, Cédric
name: Moutarde, Hervé
name: Ping, Jialun
name: Qin, Sixue
name: Ren, Hang
name: Roberts, Craig D.
name: Rojo, Juan
name: Shen, Guodong
name: Shi, Chao
name: Song, Qintao
name: Sun, Hao
name: Sznajder, Paweł
name: Wang, Enke
name: Wang, Fan
name: Wang, Qian
name: Wang, Rong
name: Wang, Ruiru
name: Wang, Taofeng
name: Wang, Wei
name: Wang, Xiaoyu
name: Wang, Xiaoyun
name: Wu, Jiajun
name: Wu, Xinggang
name: Xia, Lei
name: Xiao, Bowen
name: Xiao, Guoqing
name: Xie, Ju-Jun
name: Xie, Yaping
name: Xing, Hongxi
name: Xu, Hushan
name: Xu, Nu
name: Xu, Shusheng
name: Yan, Mengshi
name: Yan, Wenbiao
name: Yan, Wencheng
name: Yan, Xinhu
name: Yang, Jiancheng
name: Yang, Yi-Bo
name: Yang, Zhi
name: Yao, Deliang
name: Yin, Peilin
name: Yuan, C. -P.
name: Zhan, Wenlong
name: Zhang, Jianhui
name: Zhang, Jinlong
name: Zhang, Pengming
name: Chang, Chao-Hsi
name: Zhang, Zhenyu
name: Zhao, Hongwei
name: Chao, Kuang-Ta
name: Zhao, Qiang
name: Zhao, Yuxiang
name: Zhao, Zhengguo
name: Zheng, Liang
name: Zhou, Jian
name: Zhou, Xiang
name: Zhou, Xiaorong
name: Zou, Bingsong
name: Zou, Liping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed. It will be constructed based on an upgraded heavy-ion accelerator, High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under construction, together with a new electron ring. The proposed collider will provide highly polarized electrons (with a polarization of $\sim$80%) and protons (with a polarization of $\sim$70%) with variable center of mass energies from 15 to 20 GeV and the luminosity of (2-3) $\times$ 10$^{33}$ cm$^{-2}$ s$^{-1}$. Polarized deuterons and Helium-3, as well as unpolarized ion beams from Carbon to Uranium, will be also available at the EicC. The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region, including 3D tomography of nucleon; the partonic structure of nuclei and the parton interaction with the nuclear environment; the exotic states, especially those with heavy flavor quark contents. In addition, issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC. In order to achieve the above-mentioned physics goals, a hermetical detector system will be constructed with cutting-edge technologies. This document is the result of collective contributions and valuable inputs from experts across the globe. The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States. The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China.
description: EicC white paper, written by the whole EicC working group