https://doi.org/10.1140/epjp/s13360-021-01979-8
Regular Article
SuperKEKB operation using crab waist collision scheme
High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
Received:
28
June
2021
Accepted:
20
September
2021
Published online:
12
October
2021
SuperKEKB is an electron–positron asymmetric-energy double-ring collider, which was built in Japan. It has been operated to explore new phenomena in B-meson decays. Hence, extremely higher luminosity is required. A collision scheme of low emittance with a large Piwinski angle called a “nano-beam scheme” has been adopted to achieve higher luminosity by squeezing the vertical beta function at the interaction point to be smaller than the bunch length. A “crab waist collision scheme” proposed by P. Raimondi et al. has also been adopted to improve the luminosity performance. The article presents an overview of the operation of the nano-beam and crab waist collision schemes at SuperKEKB.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
