Speaker
Description
The Super Tau-Charm Facility (STCF), proposed by the University of Science and Technology of China, is a next-generation electron-positron collider designed to achieve a luminosity exceeding 5×10^34 cm^-2s^-1, approximately two orders of magnitude greater than that of BEPCII. Large Piwinski angle with the crab waist collision scheme is applied. However, the extremely small βy* (<1 mm) generates very large nature chromaticity. Local chromaticity corrections for both horizontal and vertical planes have been proposed. Touschek lifetime is very challenging due to its low-energy, low-emittance, and high-current. A two-folded lattice has been proposed for the collider rings, with the iterations of version 5. Nonlinear optimization has been carried out with Multi-Objective Genetic Algorithm (MOGA) to maximise the dynamic aperture and momentum acceptance, considering fringe fields and misalignment errors. This paper introduces the updated physical design of the STCF collider rings.
Funding Agency
This project is supported by the National Natural Science Foundation of China (Project No. 12341501, No. 12405174).
| In which format do you inted to submit your paper? | Word |
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