STCF conceptual design report (Volume 1): Physics & detector
M. Achasov, X. Ai, L. P. An, R. Aliberti, Q. An, Xianfu Bai, Y. Bai, O. Bakina, A. Barnyakov, Vladimir Blinov, V. Bobrovnikov, D. Bodrov, A. Bogomyagkov, A. Bondar, I. Boyko, Zichuan Bu, Fuxuan Cai, H. Cai, Junjie Cao, Qin Cao, Xu Cao, Z. Cao, Qin Chang, K. T. Chao, D. Y. Chen, H. Chen, Hua-Xing Chen, J. F. Chen, Kai Chen, L. L. Chen, P. Chen, S. L. Chen, S. M. Chen, S. Chen, S. P. Chen, Wei Chen, X. Chen, Xinghao Chen, X. R. Chen, Y. Chen, Y. Q. Chen, H. Y. Cheng, Jie Cheng, Songtao Cheng, Tanyu Cheng, J. P. Dai, L. Dai, Xiang-Wei Dai, D. Dedovich, A. G. Denig, I. Denisenko, J. M. Dias, Dequan Ding, L. Y. Dong, Wenjing Dong, V. Druzhinin, D. S. Du, Y. J. Du, Zhirui Du, Longlong Duan, D. Epifanov, Y. L. Fan, S. S. Fang, Zhengzhong Fang, G.V. Fedotovich, C. Q. Feng, Xu Feng, Y. T. Feng, J. Fu, Jun Gao, Y. N. Gao, Pushi Ge, C. Q. Geng, Li‐Sheng Geng, A. Gilman, L. Gong, Tengfang Gong, B. Gou, W. Gradl, Jinliang Gu, Adolfo Guevara, Lin Gui, A. Q. Guo, Feng-Kun Guo, Jiacheng Guo, J. Guo, Y. P. Guo, Zhenjie Guo, A. Guskov, K. L. Han, L. Han, M. Han, X. Q. Hao, Jibin He, Shaolin He, Xiao-Gang He, Yuanzheng He, Ziou He, Zirong Heng, Baorui Hou
Abstract
Abstract The super τ -charm facility (STCF) is an electron–positron collider proposed by the Chinese particle physics community. It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5 × 10 35 cm −2 ·s −1 or higher. The STCF will produce a data sample about a factor of 100 larger than that of the present τ -charm factory — the BEPCII, providing a unique 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 searching for exotic hadrons and physics beyond the Standard Model. The STCF project in China is under development with an extensive R&D program. This document presents the physics opportunities at the STCF, describes conceptual designs of the STCF detector system, and discusses future plans for detector R&D and physics case studies.