Nuclear Techniques ›› 2020, Vol. 43 ›› Issue (2): 20001-020001.doi: 10.11889/j.0253-3219.2020.hjs.43.020001

• INVITED REVIEW •     Next Articles

Electron ion collider in China

Xu CAO1,2,Lei CHANG3,Ningbo CHANG4,Xurong CHEN1,2,Zhuojun CHEN5,Zhufang CUI6,Lingyun DAI5,Weitian DENG7,Minghui DING8,Chang GONG9,Longcheng GUI1,2,10,Fengkun GUO11,2,Chengdong HAN1,2,Jun HE12,Hongxia HUANG12,Yin HUANG13,Kaptari L P1,14,Demin LI15,Hengne LI16,Minxiang LI1,17,Xueqian LI3,Yutie LIANG1,2,Zuotang LIANG18,Guoming LIU16,Jie LIU1,2,Liuming LIU1,2,Xiang LIU17,Xiaofeng LUO19,Zhun LYU20,Boqiang MA9,Fu MA1,2,Jianping MA11,2,Yugang MA21,22,2,Lijun MAO1,2,Mezrag C23,Jialun PING12,Sixue QIN24,Hang REN1,2,Roberts C D6,Guodong SHEN1,2,Chao SHI25,Qintao SONG15,Hao SUN26,Enke WANG16,Fan WANG6,Qian WANG16,Rong WANG1,2,Ruiru WANG1,2,Taofeng WANG27,Wei WANG28,Xiaoyu WANG15,Xiaoyun WANG29,Jiajun WU2,Xinggang WU24,Bowen XIAO19,Guoqing XIAO1,2,Jujun XIE1,2,Yaping XIE1,2,Hongxi XING16,Hushan XU1,2,Nu XU1,2,19,Shusheng XU30,Wenbiao YAN31,Wencheng YAN15,Xinhu YAN32,Jiancheng YANG1,2,Yi-Bo YANG11,2,Zhi YANG1,2,Deliang YAO5,Peilin YIN30,Wenlong ZHAN1,2,Jianhui ZHANG33,Jinlong ZHANG34,Pengming ZHANG35,Chao-Hsi CHANG11,2,Zhenyu ZHANG36,Hongwei ZHAO1,2,Kuang-Ta CHAO9,Qiang ZHAO37,2,Yuxiang ZHAO1,2,Zhengguo ZHAO31,Liang ZHENG38,Jian ZHOU18,Xiang ZHOU36,Xiaorong ZHOU31,Bingsong ZOU11,2,Liping ZOU1,2   

  1. 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Nankai University, Tianjin 300071, China
    4. Xinyang Normal University, Xinyang 464000, China
    5. Hunan University, Changsha 410082, China
    6. Nanjing University, Nanjing 210093, China
    7. Huazhong University of Science and Technology, Wuhan 430074, China
    8. European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Villa Tambosi, Strada delle Tabarelle 286, I-38123 Villazzano (TN)Italy
    9. School of Physics, Peking University, Beijing 100871, China
    10. Hunan Normal University, Changsha 410081, China
    11. CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
    12. Nanjing Normal University, Nanjing 210023, China
    13. Southwest Jiaotong University, Chengdu 610000, China
    14. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna 141980, Russia
    15. School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, China
    16. Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510631, China
    17. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
    18. Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China
    19. Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
    20. School of Physics, Southeast University, Nanjing 211189, China
    21. Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
    22. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
    23. IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
    24. Department of Physics, Chongqing University, Chongqing 400044, China
    25. Department of nuclear science and technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    26. Dalian University of Technology, Dalian 116024, China
    27. School of Physics, Beihang University, Beijing 100191, China
    28. Shanghai Jiao Tong University, Shanghai 200240, China
    29. Lanzhou University of Technology, Lanzhou 730050, China
    30. School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
    31. University of Science and Technology of China, Hefei 230026, China
    32. Huangshan University, Huangshan 245021, China
    33. Center of Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing 100875, China
    34. Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
    35. School of Physics and Astronomy, Sun Yat-sen University, Zhuhai 519082, China
    36. School of Physics and Technology, Wuhan University, Wuhan 430072, China
    37. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    38. School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, China
  • Received:2020-01-08 Revised:2020-01-16 Online:2020-02-15 Published:2020-02-24
  • Supported by:
    Key Research Program of Chinese Academy of Sciences(XDPB09)

Abstract:

Lepton scattering is an established ideal tool for studying inner structure of microscopic 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 an additional electron ring. The proposed collider will provide highly polarized electrons (with the polarization ~80%), protons and Helium-3 (both with the polarization ~70%), as well as unpolarized ion beams from carbon to uranium with viable center of mass energy from 15 GeV to 20 GeV and the luminosity of (2~4)×1033 cm-2?s-1. The main foci of the EicC will be the precision measurements of proton structure in the sea quark region, including 3D tomography of nucleon; the partonic structure of nuclei and the parton interaction with the nuclear environment, in particular, the short range correlation of nucleons and the cold nuclear matter effects; the exotic hadronic 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 the cutting-edge technology. During preparation of the document, we have received valuable inputs and help 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 hadron physics as well as accelerator and detector technology in China.

Key words: Electron ion collider, Nucleon structure, Nucleon mass, Exotic hadronic states, Quantum chromodynamics, Helicity, Transverse momentum dependent parton distribution, Generalized Parton Distribution, Deeply virtual compton scattering, Deeply virtual meson production, Energy recovery linac, Polarization, Spin rotator, 3D-tomography

CLC Number: 

  • O571.1