SuperKEKB is a particle collider at the KEK laboratory in Tsukuba, Ibaraki Prefecture, Japan, that collides electrons with positrons and serves as a second generation B factory for the Belle II experiment. An upgrade of the earlier KEKB accelerator delivering roughly forty times its luminosity, it achieved first beam circulation in February 2016, first collisions in April 2018, and on 15 June 2020 set the world record for instantaneous luminosity in a colliding beam accelerator.
Facts
SignificanceAchieved the world's highest instantaneous luminosity for a colliding-beam accelerator on 15 June 2020 1 FAQs
How does SuperKEKB reach a higher collision rate than the KEKB accelerator it replaced?
A nano-beam scheme squeezes the beams vertically and widens the crossing angle.
Much of the improvement comes from a nano-beam scheme, originally proposed for the cancelled SuperB experiment. At SuperKEKB the beams are squeezed in the vertical direction and the crossing angle is increased, which reduces the area where the two beams cross and so raises the luminosity.
Connections
Preceded By
Source KEKB (accelerator) (Wikipedia)Wikipedia contributors
Sources
1. SuperKEKB - Wikipedia
Intro, last sentence
achieved the world's highest instantaneous luminosity for a colliding-beam accelerator
Lead paragraph
The accelerator achieved "first turns" (first circulation of electron and positron beams) in February 2016.
status sentence
SuperKEKB is a particle collider at the KEK laboratory in Tsukuba, Ibaraki Prefecture, Japan, that collides electrons with positrons and serves as a second generation B factory for the Belle II experiment.
In Group: Particle Colliders, Introduction
SuperKEKB is a particle collider located at KEK (High Energy Accelerator Research Organization) in Tsukuba, Ibaraki Prefecture, Japan.
View the SourceKEKB (accelerator) (Wikipedia)
Wikipedia contributors, Wikimedia FoundationPreceded By: KEKB (accelerator), lead section, para 1Quote, Preceded By: KEKB (accelerator), lead section, para 1
It has been superseded by its upgrade, the SuperKEKB accelerator (located at the same site). The SuperKEKB is a luminosity upgrade of KEKB.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.