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Charm Physics at the Super $\tau$-Charm Factory

High Energy Physics - Phenomenology 2025-02-14 v3 High Energy Physics - Experiment

Abstract

The high-luminosity Super τ\tau-Charm Factory (STCF) will be a crucial facility for charm-physics research, particularly for the precise measurement of electroweak parameters, measuring D0D^0-Dˉ0\bar{D}^0 mixing parameters, investigating Charge-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 DD 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.

Keywords

Cite

@article{arxiv.2203.03211,
  title  = {Charm Physics at the Super $\tau$-Charm Factory},
  author = {Hai-Yang Cheng and Xiao-Rui Lyu and Zhi-Zhong Xing},
  journal= {arXiv preprint arXiv:2203.03211},
  year   = {2025}
}

Comments

This version is published in Chinese Physics Letters 42, 010201 (2025), which is updated from the White Paper on STCF charm physics contributing to the Snowmass 2021. 14 pages, 5 table

R2 v1 2026-06-24T10:04:11.084Z