中国超级陶粲装置  

Super Tau-Charm Facility of China

作　　者：彭海平[1,2] 郑阳恒 周小蓉 PENG Hai-Ping;ZHENG Yang-Heng;ZHOU Xiao-Rong(School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China;State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学技术大学物理学院,合肥230026 [2]核探测与核电子学国家重点实验室,中国科学技术大学,合肥230026 [3]中国科学院大学,北京100049

出　　处：《物理》2020年第8期513-524,共12页Physics

摘　　要：在粒子物理研究领域,陶粲能区具有独特的性质、丰富的前沿物理课题和重大的科学发现潜力,是该领域重点关注的能区之一。为了使我国在该研究领域继续引领世界,依托中国科学技术大学的国家同步辐射实验室,核探测与核电子学国家重点实验室等研究平台,科学家提出建设一台新一代的正负电子对撞机——超级陶粲装置。新一代的超级陶粲装置的设计亮度大于0.5×10^35 cm^-2 s^-1,对撞的质心能量覆盖2—7 GeV,相关性能比当前正在运行的北京正负电子对撞机BEPCII有大幅度的提升。该装置将为探索宇宙中正反物质的不对称性(CP破缺)、深入研究强子内部结构及非微扰强相互作用本质、寻找奇异物质和超越标准模型的新物理现象等前沿重大课题提供关键平台。陶粲装置的预研和建设对我国现有已掌握的高能加速器和探测器相关关键技术提出了重大挑战,对我国的基础科学研究、高新技术的发展以及相关综合性人才的培养等方面具有重要的科学意义和战略地位。The tau-charm region is one of the most important energy regions in the research of particle physics due to its unique properties,rich frontier topics and great potential for scientific discovery.In order to maintain our country's pioneering position in the tau-charm research field,we propose to build a new generation electron-positron collider—the Super Tau-Charm Facility(STCF),based on the Hefei National Synchrotron Radiation Laboratory,the State Key Laboratory of Particle Detection and Electronics,and other research platforms.The STCF would have a luminosity greater than 0.5×10^35 cm^-2 s^-1,and a center-of-mass energy region of 2 to 7 GeV.Its performance is expected to be significantly better than the currently running BEPCII,and will provide a key platform for exploring the asymmetry of matter-antimatter(charge parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as the quest for exotic particles and physics beyond the standard model.The construction of STCF poses a great challenge to the existing accelerator and detector technologies in China,but is very important scientifically and strategically not only for fundamental scientific research but also for the development of new technology and the cultivation of comprehensive expertise.

关 键 词：正负电子对撞机 陶粲能区 量子色动力学 CP破坏 核子结构 

分 类 号：O572.214[理学—粒子物理与原子核物理]