Charm Physics at the Super τ-Charm Factory

• Published in: Chinese physics letters Vol. 42; no. 1; pp. 10201 - 9
• Main Authors: Cheng, Hai-Yang, Lyu, Xiao-Rui, Xing, Zhi-Zhong
• Format: Journal Article
• Language: English
• Published: Chinese Physical Society and IOP Publishing Ltd 01.01.2025; Institute of Physics,Academia Sinica,Taiwan 11529,China%University of Chinese Academy of Sciences,Beijing 100049,China%University of Chinese Academy of Sciences,Beijing 100049,China; Institute of High Energy Physics,Beijing 100049,China
• ISSN: 0256-307X; 1741-3540
• DOI: 10.1088/0256-307X/42/1/010201

The high-luminosity Super τ -Charm Factory (STCF) will be a crucial facility for charm-physics research, particularly for the precise measurement of electroweak parameters, measuring D 0 - D ¯ 0 mixing parameters, investigating conjugation–parity (CP) violation within the charm sector, searching for the rare and forbidden decays of charmed hadrons, and addressing other foundational questions related to charmed hadrons. With the world’s largest charm-threshold data, the STCF aims to achieve high sensitivity in studying the strong phase of neutral D mesons using quantum correlation, complementing studies at LHCb and Belle II, and contributing to the understanding of CP violations globally. The STCF will also enable world-leading precision in measuring the leptonic decays of charmed mesons and baryons, providing constraints on the Cabibbo–Kobayashi–Maskawa matrix and strong-force dynamics. Additionally, the STCF will explore charmed hadron spectroscopy. The advanced detector and clean experimental environment of the STCF will enable unprecedented precision, help address key challenges in the Standard Model, and facilitate the search for potential new physics.