Project status and perspective of the Super Tau Charm Facility

by Jingyu Tang (University of Science and Technology of China USTC)

Tuesday 14 Apr 2026, 14:30 → 17:00 Europe/Rome

Aula Salvini (Laboratori Nazionali di Frascati)

The Super Tau-Charm Facility (STCF) was proposed as a third-generation circular electron-positron collider in the energy range of 2-7 GeV (CoM) and with a luminosity greater than $5 \times 10^{34}$ $\mathrm{cm}^{-2}$ s ${}^{-1}$ @ 4 GeV, aiming to explore charm physics and tau physics in the next decades.

This seminar will introduce the science goals, facility design, R&D efforts and project planning of STCF, but with the main focus on the accelerator.

Under the financial support of the key technology R&D project by the local governments and other national funding agencies, the STCF accelerator team including international collaborators has completed the conceptual design of the accelerator in 2024, and is working on the technical design. The accelerator consists of a full-energy injector consisting of multi-section linacs and a positron damping/accumulator ring and a double-ring collider with the crab-waist collision scheme. Key accelerator physics and technological challenges will be addressed. Ongoing R&D efforts and progresses will be summarized.

The baseline design has one detector, but the reserved space for the second detector is also reserved. The project planning will also be given. 

Prof. Jingyu Tang is Professor at University of Science and Technology of China (USTC) since 2022. He graduated from USTC with Bachelor in 1984, and from Institute of Modern Physics (IMP, CAS) with PhD in 1990. From 1993 to 2004, he worked at IMP, and from 2004 to 2022 at Institute of High Energy Physics (IHEP, CAS). He has also about eight-year experience in several European laboratories such as GANIL (Caen, France), CAL-MEDICYC (Nice, France) and FZJ (Juelich, Germany). His main interests are accelerator physics and technology, and particle beam applications. He played key roles in facilities and projects including Heavy-Ion Research Facility at Lanzhou, China Spallation Neutron Source (CSNS), China Accelerator-Driven System and Super Proton-Proton Collider (second phase of CEPC-SPPC). He initiated and promoted the projects like the Back-n white neutron source and the EMuS muon source at CSNS. Currently he is one of the leading persons in the Super Tau-Charm Facility (STCF, an electron-positron collider under R&D) project.

INFN-LNF-STCF Project-Tang.pptx

Locandina_TANG.docx