Author:
Zhou D.,Ohmi K.,Funakoshi Y.,Ohnishi Y.
Abstract
Abstract
Since April 2020, the SuperKEKB has been operating with the
crab waist scheme. The luminosity record achieved in June 2022 was
4.71 × 1034 cm-2 s-1, which overtook
its predecessor KEKB by more than a factor of 2. The beam-beam
interaction plays a key role in causing vertical blowup and
consequently limiting the luminosity performance of SuperKEKB. In
this paper, we examine luminosity tunings under the influence of
beam-beam effects and review the luminosity performance of SuperKEKB
with the crab-waist operation from 2020 to 2022.