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A proposal has been made for the construction of a new generation of high-luminosity electron-positron colliders known as the Super Tau-Charm Facility (STCF) in China. The STCF aims to achieve a luminosity exceeding Formula: see textFormula: see textcmFormula: see textFormula: see textsFormula: see text and will operate within a center-of-mass energy range of 2 to 7Formula: see textGeV. Given the design challenges of the STCF collider ring, swap-out injection has been proposed as an alternative method for achieving the desired luminosity. Consequently, the STCF injector will explore both off-axis injection and swap-out injection methods concurrently. This paper will detail the ongoing research progress on these two injection techniques.
Luo et al. (Wed,) studied this question.