Conceptual design report of the Super Tau-Charm Facility: the accelerator

  • Xiao Cong Ai
  • , Liu Pan An
  • , Shi Zhong An
  • , Yu Bai
  • , Zheng He Bai
  • , Olga Bakina
  • , Jian Cong Bao
  • , Varvara Batozskaya
  • , Anastasios Belias
  • , Maria Enrica Biagini
  • , Li Gong Bian
  • , Denis Bodrov
  • , Anton Bogomyagkov
  • , Manuela Boscolo
  • , Igor Boyko
  • , Ze Xin Cao
  • , Serkant Cetin
  • , Marina Chadeeva
  • , Ming Xuan Chang
  • , Qin Chang
  • Dian Yong Chen, Fang Zhou Chen, Hai Chen, Hua Xing Chen, Jin Hui Chen, Long Chen, Long Bin Chen, Qi Chen, Qu Shan Chen, Shao Min Chen, Wei Chen, Ying Chen, Zhi Chen, Shan Cheng, Si Bo Cheng, Tong Guang Cheng, Lian Rong Dai, Ling Yun Dai, Xin Chen Dai, Achim Denig, Igor Denisenko, Denis Derkach, Heng Tong Ding, Ming Hui Ding, Xiao Ding, Liao Yuan Dong, Yong Du, Prokhor Egorov, Kuan Jun Fan, Si Yuan Fan, Shuang Shi Fang, Zhu Jun Fang, Song Feng, Xu Feng, Hai Bing Fu, Jun Gao, Yuan Ning Gao, Zi Han Gao, Cong Geng, Li Sheng Geng, Hai Liang Gong, Jia Ding Gong, Li Gong, Shao Kun Gong, Sergi Gonzàlez-Solís, Bo Xing Gou, Duan Gu, Hao Guo, Jun Guo, Teng Jun Guo, Xin Heng Guo, Yu Hui Guo, Yu Ping Guo, Zhi Hui Guo, Selcuk Haciomeroglu, Eiad Hamwi, Cheng Dong Han, Ting Ting Han, Xi Qing Hao, Chong Chao He, Ji Bo He, Tian Long He, Xiao Gang He, Masahito Hosaka, Kai Wen Hou, Zhi Long Hou, Dong Dong Hu, Hai Ming Hu, Hao Hu, Qi Peng Hu, Tong Ning Hu, Xiao Cheng Hu, Yu Hu, Zhen Hu, Da Zhang Huang, Fei Huang, Guang Shun Huang, Liang Sheng Huang, Peng Wei Huang, Rui Xuan Huang, Xing Tao Huang, Xue Lei Huang, Zhi Cheng Huang, Wang Ji, Peng Kun Jia, Sen Jia, Ze Kun Jia, Hong Ping Jiang, Hou Bing Jiang, Jian Bin Jiao, Ming Jie Jin, Su Ping Jin, Yi Jin, Daekyoung Kang, Xian Wei Kang, Xiao Lin Kang, Leonid Kaptari, Onur Bugra Kolcu, Ivan Koop, Evgeniy Kravchenko, Yury Kudenko, Meike Küßner, Yong Bin Leng, Eugene Levichev, Chao Li, Chun Yuan Li, Chun Hua Li, Hai Tao Li, Hai Bo Li, Hang Zhou Li, Heng Ne Li, Hong Lei Li, Hui Jing Li, Hui Lin Li, Jia Rong Li, Jin Li, Lei Li, Min Li, Pei Rong Li, Pei Lian Li, Ren Kai Li, Sang Ya Li, Shu Li, Teng Li, Tian You Li, Wei Wei Li, Wen Jun Li, Xin Li, Xin Qiang Li, Xin Bai Li, Xuan Li, Xun Feng Li, Yan Feng Li, Ya Xuan Li, Ying Li, Yu Bo Li, Jian Liang, Xiao Liang, Yu Liang, Ze Rui Liang, Chuang Xin Lin, De Xu Lin, Ting Lin, Yu Gen Lin, Chao Liu, Chia Wei Liu, Gang Wen Liu, Hang Liu, Hong Bang Liu, Jian Bei Liu, Jian Dang Liu, Lang Tian Liu, Liang Chen Liu, Ming Yi Liu, Shu Bin Liu, Tao Liu, Tian Bo Liu, Xiang Liu, Xiao Yu Liu, Xin Liu, Xu Yang Liu, Yan Rui Liu, Yan Lin Liu, Yan Wen Liu, Yi Liu, Yuan Liu, Zhan Wei Liu, Zhao Feng Liu, Zhi Qing Liu, Zi Rui Liu, Zuo Wei Liu, Cai Dian Lu, Miao Ran Lu, Peng Cheng Lu, Yu Lu, Qing Luo, Tao Luo, Xiao Feng Luo, Hui Hui Lv, Shuo Tian Lyu, Xiao Rui Lyu, Bo Qiang Ma, Cheng Long Ma, Shao Hang Ma, Teng Ma, Wen Bin Ma, Yu Meng, Meng Xu Fan, Xue Ce Miao, Mauro Migliorati, Catia Milardi, Taisiya Mineeva, Yi Hao Mo, Hector Gisbert Mullor, Elaf Musa, Satoshi Nakamura, Alexey Nefediev, Yuan Cun Nie, Kazuhito Ohmi, M. Padmanath, Pavel Pakhlov, Jian Pang, Emilie Passemar, Guo Xi Pei, Hua Pei, Hai Ping Peng, Liang Peng, Rong Gang Ping, Bernard Pire, Vindhyawasini Prasad, Bin Bin Qi, Zhi Jun Qi, Yi Qian, Cong Feng Qiao, Jia Jia Qin, Long Yu Qin, Qin Qin, Xiao Shuai Qin, Fedor Ratnikov, Craig Roberts, Antonio Rodríguez-Sánchez, Yury Rogovsky, Platon Rogozhin, Pablo Roig, Man Qi Ruan, Jorge Segovia, Feng Lei Shang, Lei Shang, Jian Feng Shangguan, Ding Yu Shao, Ming Shao, Zhuo Xia Shao, Cheng Ping Shen, Hong Fei Shen, Xiao Min Shen, Zhong Tao Shen, Cai Tu Shi, Jia Lei Shi, Rui Xiang Shi, Yu Kun Shi, Zong Guo Si, Luiz Vale Silva, Mikhail Skamarokha, Jun Chao Su, Guang Bao Sun, Jun Feng Sun, Kun Sun, Li Sun, Ming Kai Sun, Rui Sun, Xu Lei Sun, Jing Yu Tang*, Yin Gao Tang, Ze Bo Tang, Wei Tao, Valery Telnov, Jia Xiu Teng, Yuriy Tikhonov, Cheng Ying Tsai, Timofey Uglov, Vincenzo Vagnoni, German Valencia, Guan Yue Wan, An Xin Wang, Bin Wang, Cheng Zhe Wang, En Wang, Hong Jin Wang, Jia Wang, Jie Wang, Jun Zhang Wang, Lei Wang, Lin Wang, Qian Wang, Sheng Quan Wang, Sheng Yuan Wang, Shi Kang Wang, Wei Wang, Wei Ping Wang, Xiang Peng Wang, Xia Yu Wang, Xiong Fei Wang, Ya Qian Wang, Yu Ming Wang, Yu Hao Wang, Zeren Simon Wang, Zhi Wang, Zhi Gang Wang, Zhi Yong Wang, Zi Yu Wang, Zi Rui Wang, Bing Feng Wei, Shao Qing Wei, Shu Yi Wei, Xiao Min Wei, Ya Jing Wei, Ye Long Wei, Ulrich Wiedner, Jia Jun Wu, Jun Wu, Qun Wu, Sang Wu, Xin Wu, Xing Gang Wu, Xuan Wu, Yong Cheng Wu, Yu Sheng Wu, Lei Xia, Zhi Gang Xiao, Chun Jie Xie, Kai Bo Xie, Zi Yu Xiong, Ji Xu, Lai Lin Xu, Shu Sheng Xu, Xin Xu, Yue Xu, Liang Yan, Wen Biao Yan, Xue Qing Yan, Chi Yang, Hai Jun Yang, Hong Tao Yang, Jun Yang, Peng Hui Yang, Shuai Yang, Tao Yang, Wei Hua Yang, Xing Hua Yang, Xue Ting Yang, Yue Ling Yang, Zhen Wei Yang, Zhong Juan Yang, De Liang Yao, Zao Chen Ye, Kai Yi, Li Yi, Li Xin Yin, Zheng Yun You, Chen Yu, Ze Yu, Jing Yuan, You Jin Yuan, Nefedov Yury, Yi Feng Zeng, Wang Mei Zha, Ai Lin Zhang, Ding Yue Zhang, Guang Yi Zhang, Guo Heng Zhang, Hai Yan Zhang, Hao Ran Zhang, Hong Hao Zhang, Hui Bin Zhang, Jia Lian Zhang, Jian Rong Zhang, Jian Hui Zhang, Jian Yu Zhang, Jie Lei Zhang, Lei Zhang, Liang Zhang, Ling Hua Zhang, Lin Hao Zhang, Ning Zhang, Qiu Yan Zhang, Quan Zheng Zhang, Rui Zhang, Rui Yang Zhang, Shao Ru Zhang, Sheng Hui Zhang, Shu Lei Zhang, Wen Chao Zhang, Xiao Yang Zhang, Xiao Ming Zhang, Xiao Tao Zhang, Xin Zhang, Xin Hui Zhang, Yan Xi Zhang, Ya Teng Zhang, Yi Hao Zhang, Yi Fei Zhang, Yu Zhang, Yu Mei Zhang, Zhen Yu Zhang, Zhi Qing Zhang, Zhi Cai Zhang, Jia Yao Zhao, Ming Gang Zhao, Qiang Zhao, Rui Guang Zhao, Yang Cheng Zhao, Ze Xuan Zhao, Zheng Guo Zhao, Alexey Zhemchugov, Bo Zheng, Jing Xin Zheng, Liang Zheng, Ran Zheng, Xu Chang Zheng, Yang Heng Zheng, Bin Zhong, Dai Cui Zhou, De Min Zhou, Hang Zhou, Hao Zhou, Jian Zhou, Jian Xin Zhou, Qin Song Zhou, Shi Yu Zhou, Xiang Zhou, Xiao Kang Zhou, Xiao Rong Zhou, Ya Jin Zhou, Yi Zhou, Yi Mei Zhou, Ze Ran Zhou, Bing Zhu, Jing Yu Zhu, Jing Ya Zhu, Lin Zhu, Rui Lin Zhu, Xing Hao Zhu, Ying Chun Zhu, Zian Zhu, Mikhail Zobov, Yang Zong, Bing Song Zou, Ye Zou, Jian Zu
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Electron–positron colliders operating in the GeV center-of-mass range, or tau-charm energy region, have been proved to enable competitive frontier research due to several unique features. With the progress of high-energy physics in the last two decades, a new-generation Tau-Charm factory, called the Super Tau-Charm Facility (STCF), has been actively promoted by the particle physics community in China. STCF has the potential to address fundamental questions such as the essence of color confinement and the matter–antimatter asymmetry within the next decades. The main design goals of the STCF are a center-of-mass energy ranging from 2 to 7 GeV and a luminosity surpassing 5 × 1034 cm−2 s−1 that is optimized at a center-of-mass energy of 4 GeV, which is approximately 50 times that of the currently operating Tau-Charm factory—BEPCII. The STCF accelerator has two main parts: a double-ring collider with a crab-waist collision scheme and an injector that provides top-up injections for both electron and positron beams. As a typical third-generation electron–positron circular collider, the STCF accelerator faces many challenges in both accelerator physics and technology. In this paper, the conceptual design of the STCF accelerator complex is presented, including the ongoing efforts and plans for technological research and development, as well as the required infrastructure. The STCF project aims to secure support from the Chinese central government for its construction during the 15th Five-Year Plan (2026–2030).

Original languageEnglish
Article number242
JournalNuclear Science and Techniques
Volume36
Issue number12
DOIs
StatePublished - Dec 2025

Keywords

  • Crab-waist collision scheme
  • Super high-luminosity
  • Tau-charm physics
  • Third-generation electron-positron collider
  • Touschek lifetime

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