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中国极化电子离子对撞机计划

Electron ion collider in China

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【作者】 曹须常雷畅宁波陈旭荣陈卓俊崔著钫戴凌云邓维天丁明慧龚畅桂龙成郭奉坤韩成栋何军黄虹霞黄银Kaptari L P李德民李衡讷李民祥李学潜梁羽铁梁作堂刘国明刘杰刘柳明刘翔罗晓峰吕准马伯强马伏马建平马余刚冒立军Mezrag C平加伦秦思学任航Roberts C D申国栋史潮宋勤涛孙昊王恩科王凡王倩王荣王睿儒王涛峰王伟王晓玉王晓云吴佳俊吴兴刚肖博文肖国青谢聚军谢亚平邢宏喜徐瑚珊许怒徐书生鄢文标闫文成闫新虎杨建成杨一玻杨智姚德良尹佩林詹文龙张建辉张金龙张鹏鸣张肇西张振宇赵红卫赵光达赵强赵宇翔赵政国郑亮周剑周详周小蓉邹冰松邹丽平

【Author】 CAO Xu;CHANG Lei;CHANG Ningbo;CHEN Xurong;CHEN Zhuojun;CUI Zhufang;DAI Lingyun;DENG Weitian;DING Minghui;GONG Chang;GUI Longcheng;GUO Fengkun;HAN Chengdong;HE Jun;HUANG Hongxia;HUANG Yin;Kaptari L P;LI Demin;LI Hengne;LI Minxiang;LI Xueqian;LIANG Yutie;LIANG Zuotang;LIU Guoming;LIU Jie;LIU Liuming;LIU Xiang;LUO Xiaofeng;LYU Zhun;MA Boqiang;MA Fu;MA Jianping;MA Yugang;MAO Lijun;Mezrag C;PING Jialun;QIN Sixue;REN Hang;Roberts C D;SHEN Guodong;SHI Chao;SONG Qintao;SUN Hao;WANG Enke;WANG Fan;WANG Qian;WANG Rong;WANG Ruiru;WANG Taofeng;WANG Wei;WANG Xiaoyu;WANG Xiaoyun;WU Jiajun;WU Xinggang;XIAO Bowen;XIAO Guoqing;XIE Jujun;XIE Yaping;XING Hongxi;XU Hushan;XU Nu;XU Shusheng;YAN Wenbiao;YAN Wencheng;YAN Xinhu;YANG Jiancheng;YANG Yi-Bo;YANG Zhi;YAO Deliang;YIN Peilin;ZHAN Wenlong;ZHANG Jianhui;ZHANG Jinlong;ZHANG Pengming;CHANG Chao-Hsi;ZHANG Zhenyu;ZHAO Hongwei;CHAO Kuang-Ta;ZHAO Qiang;ZHAO Yuxiang;ZHAO Zhengguo;ZHENG Liang;ZHOU Jian;ZHOU Xiang;ZHOU Xiaorong;ZOU Bingsong;ZOU Liping;Institute of Modern Physics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Nankai University;Xinyang Normal University;Hunan University;Nanjing University;Huazhong University of Science and Technology;European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Villa Tambosi;School of Physics, Peking University;Hunan Normal University;CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences;Nanjing Normal University;Southwest Jiaotong University;Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research;School of Physics and Engineering, Zhengzhou University;Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University;School of Physical Science and Technology, Lanzhou University;Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University;Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University;School of Physics, Southeast University;Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University;Shanghai Institute of Applied Physics, Chinese Academy of Sciences;IRFU, CEA, Université Paris-Saclay;Department of Physics, Chongqing University;Department of nuclear science and technology, Nanjing University of Aeronautics and Astronautics;Dalian University of Technology;School of Physics, Beihang University;Shanghai Jiao Tong University;Lanzhou University of Technology;School of Science, Nanjing University of Posts and Telecommunications;University of Science and Technology of China;Huangshan University;Center of Advanced Quantum Studies, Department of Physics, Beijing Normal University;Department of Physics and Astronomy, Stony Brook University;School of Physics and Astronomy, Sun Yat-sen University;School of Physics and Technology, Wuhan University;Institute of High Energy Physics, Chinese Academy of Sciences;School of Mathematics and Physics, China University of Geosciences (Wuhan);

【机构】 中国科学院近代物理研究所中国科学院大学南开大学信阳师范学院湖南大学南京大学华中科技大学European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Villa Tambosi北京大学物理学院湖南师范大学中国科学院理论物理研究所中国科学院理论物理前沿重点实验室南京师范大学西南交通大学Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research郑州大学物理学院华南师范大学量子物质研究院广东省核物质科学与技术重点实验室兰州大学物理科学与技术学院山东大学粒子物理与粒子辐照教育部重点实验室华中师范大学夸克与轻子教育部重点实验室和粒子物理研究所东南大学物理学院复旦大学现代物理研究所核物理与离子束应用教育部重点实验室中国科学院上海应用物理研究所IRFU, CEA, Université Paris-Saclay重庆大学物理系南京航空航天大学核科学与技术系大连理工大学北京航空航天大学物理学院上海交通大学兰州理工大学南京邮电大学中国科学技术大学黄山学院北京师范大学高等量子研究中心Department of Physics and Astronomy, Stony Brook University中山大学物理与天文学院武汉大学物理科学与技术学院中国科学院高能物理研究所中国科学院大科学装置理论中心中国地质大学(武汉)数学与物理学院

【摘要】 轻子散射实验是探索核子与原子核结构的理想工具。中国电子离子对撞机(Electron Ion Collider in China,EicC)建议书设想在已开建的强流重离子加速器装置(High Intensity heavy ion Accelerator Facility,HIAF)的基础上,升级质子束流为20 GeV的极化束流,并建造2.8~5 GeV极化电子束流,从而实现质心系能量为15~20 GeV的双极化电子-离子对撞。EicC设计的亮度为(2~4)×1033cm-2?s-1,质子束流极化率达到70%,电子束流极化率达到80%。该装置除了能提供极化轻离子束流(例如:氦-3)外,也可产生非极化重离子束流(碳-12~铀-238)。EicC将聚焦核子海夸克部分子结构、原子核物质结构与性质、奇特强子态三个方面的物理研究。高亮度、高精度的对撞机有助于精确地测量核子结构函数并对核子进行三维成像,揭示强相互作用的动力学规律;原子核部分子分布包括核子短程关联以及原子核介质效应同样是该提案的重要科学目标;EicC能区接近重味夸克产生阈值,在研究重味强子谱方面拥有低背景的独特优势,有助于发现研究新的奇特强子态。质子质量起源问题也可以通过重味矢量介子的产生来研究。为了完成上述物理目标,我们将利用最先进的探测器技术建造接近全立体角覆盖的EicC对撞机谱仪。在准备EicC白皮书的过程中,我们得到世界各国专家的支持。EicC的物理与已有的实验和美国即将建设的EIC中的物理项目相互补充。EicC的建成及运行有望引领前沿的中高能核物理研究,使我国在加速器和探测器先进技术等领域实现跨越式发展,为我国核物理与强子物理以及相关科学领域提供大型综合实验平台与人才培养基地。

【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 3 D 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.

【基金】 中国科学院B类先导科技专项培育项目(No.XDPB09)资助~~
  • 【分类号】O571.1
  • 【被引频次】14
  • 【下载频次】332
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