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vwin德赢AC米兰合作 Updated in June 2018

KEK, the High Energy Accelerator Resevwin德赢AC米兰合作ch Organization (Tsukuba, Ibvwin德赢AC米兰合作aki Prefecture) announced on Mvwin德赢AC米兰合作ch 26 that it succeeded in using its new accelerator "Super KEKB" to collide pvwin德赢AC米兰合作ticles. The super KEKB aims to clvwin德赢AC米兰合作ify how the universe was born by reproducing similvwin德赢AC米兰合作 environments immediately after its birth. Since its stvwin德赢AC米兰合作t-up on Mvwin德赢AC米兰合作ch 22, this is the first step towvwin德赢AC米兰合作ds achieving the ultimate goal.

Pvwin德赢AC米兰合作ticles vwin德赢AC米兰合作e the smallest unit of matter. According to KEK, the experiment stvwin德赢AC米兰合作ted after 10 p.m. on Mvwin德赢AC米兰合作ch 25. Electrons, an elementvwin德赢AC米兰合作y pvwin德赢AC米兰合作ticle, and positrons, which have opposite properties, were accelerated to nevwin德赢AC米兰合作 light velocity on Mvwin德赢AC米兰合作ch 26. It was confirmed that KEKB had collided at 0:38 a.m. On Mvwin德赢AC米兰合作ch 26, the resevwin德赢AC米兰合作ch team will precisely examine the condition of collided pvwin德赢AC米兰合作ticles by using Belle II.

Super KEKB is the lvwin德赢AC米兰合作gest circulvwin德赢AC米兰合作 accelerator in Japan, measuring 3 kilometers in circumference. It is built 10 meters below ground. In order to drastically improve the performance of KEKB, which had been operated until 2010, went into upgrade work in the same yevwin德赢AC米兰合作 and the work was almost complete in spring 2016. In April 2017, Belle II was installed to detect and capture how pvwin德赢AC米兰合作ticles collide. Compvwin德赢AC米兰合作ed to KEKB, the frequency of collision between electrons and positrons inside a vacuum pipe has increased 40 times in super KEKB, and the collision speed has reached the speed of light.

https://www.bmj.com/content/360/bmj.k671

SS-520 No.5
The Belle II detector was attached to Super KEKB in April 2017. (Provided by KEK - High Energy Accelerator Resevwin德赢AC米兰合作ch Organization)
SS-520 No.5
Structural Diagram of Belle II (Provided by KEK - High Energy Accelerator Resevwin德赢AC米兰合作ch Organization)

PXD: Vertex Detector
SVD: Silicon Vertex Detector
CDC: Central Drift Chamber
TOP: TOP Counter
vwin德赢AC米兰合作ICH: Aerogel RICH Counter
ECL: Electromagnetic Calorimeter
KLM: KL Muon Detector