Electron-ion collider in China  

作　　者：Daniele PAnderle Valerio Bertone Xu Cao Lei Chang Ningbo Chang Gu Chen Xurong Chen Zhuojun Chen Zhufang Cui Lingyun Dai Weitian Deng Minghui Ding Xu Feng Chang Gong Longcheng Gui Feng-Kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia Huang Yin Huang KrešImir KumeričKi LPKaptari Demin Li Hengne Li Minxiang Li Xueqian Li Yutie Liang Zuotang Liang Chen Liu Chuan Liu Guoming Liu Jie Liu Liuming Liu Xiang Liu Tianbo Liu Xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma Lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao Song Hao Sun PawełSznajder Enke Wang Fan Wang Qian Wang Rong Wang Ruiru Wang Taofeng Wang Wei Wang Xiaoyu Wang Xiaoyun Wang Jiajun Wu Xinggang Wu Lei Xia Bowen Xiao Guoqing Xiao Ju-Jun Xie Yaping Xie Hongxi Xing Hushan Xu Nu Xu Shusheng Xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan Wenlong Zhan Jianhui Zhang Jinlong Zhang Pengming Zhang Yifei Zhang Chao-Hsi Chang Zhenyu Zhang Hongwei Zhao Kuang-Ta Chao Qiang Zhao Yuxiang Zhao Zhengguo Zhao Liang Zheng Jian Zhou Xiang Zhou Xiaorong Zhou Bingsong Zou Liping Zou 

机构地区：[1]Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China [2]IRFU,CEA,UniversitéParis-Saclay,F-91191 Gif-sur-Yvette,France [3]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Nankai University,Tianjin 300071,China [6]Xinyang Normal University,Xinyang 464000,China [7]School of Physics and Materials Science,Guangzhou University,Guangzhou 510006,China [8]Hunan University,Changsha 410082,China [9]Nanjing University,Nanjing 210093,China [10]Huazhong University of Science and Technology,Wuhan 430074,China [11]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 [12]School of Physics,Peking University,Beijing 100871,China [13]Hunan Normal University,Changsha 410081,China [14]Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China [15]Nanjing Normal University,Nanjing 210023,China [16]Department of Physics,College of Sciences,Northeastern University,Shenyang 110819,China [17]Southwest Jiaotong University,Chengdu 610000,China [18]Department of Physics,Faculty of Science,University of Zagreb,Bijenička c.32,10000 Zagreb,Croatia [19]Bogoliubov Laboratory of Theoretical Physics,Joint Institute for Nuclear Research,Dubna 141980,Russia [20]School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China [21]Lanzhou University,Lanzhou 730000,China [22]Key Laboratory of Particle Physics and Particle Irradiation(MOE),Shandong University,Qingdao 266237,China [23]Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics,Central China Normal University,Wuhan 430079,China [24]School of Physics,Southeast University,Nanjing 211189,China [25]Key Laboratory of Nuclear Physics and Ion-beam Application(MOE),Institute of Modern Physics,Fudan University,Shanghai 200433,China

出　　处：《Frontiers of physics》2021年第6期1-78,共78页物理学前沿（英文版）

摘　　要：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 po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 15 to 20 GeV and the luminosity of(2–3)×1033 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.

关 键 词：electron ion collider nucleon structure nucleon mass exotic hadronic states quantum chromodynamics 3D-tomography HELICITY transverse momentum dependent parton distribution generalized parton distribution energy recovery linac polarization spin rotator 

分 类 号：O57[理学—粒子物理与原子核物理]