The High Energy Accelerator Research Organization (高エネルギー加速器研究機構 Kō Enerugī Kasokuki Kenkyū Kikō), commonly known as KEK, is a high-energy physics research organization in Tsukuba, Ibaraki Prefecture, Japan. Its two major accelerators are the 12 GeV Proton Synchrotron and the KEKB electron-positron collider where the Belle experiment is currently running. KEK can refer to: KEK, a Japanese particle physics facility Key Encryption Key Kék a village in eastern Hungary. ... Particle physics is a branch of physics that studies the elementary constituents of matter and radiation, and the interactions between them. ... Tsukuba (Japanese: つくば市; -shi; from Han character 筑波) is a planned city located in Ibaraki Prefecture, Japan. ... Ibaraki Prefecture ) is located in the Kantō region on HonshÅ« island, Japan. ... For the DC Comics Superhero also called Atom Smasher, see Albert Rothstein. ... A GEV (or Ground Effect Vehicle) is vehicle that takes advantage of the aerodynamic principle of ground effect (or Wing-in-ground). ... For other uses, see Proton (disambiguation). ... Synchrotrons are now mostly used for producing monochromatic high intensity X-ray beams; here, the synchrotron is the circular track, off which the beamlines branch. ... KEKB is the name of the accelerator used in the Belle Experiment to study CP violation. ... For other uses, see Electron (disambiguation). ... The first detection of the positron in 1932 by Carl D. Anderson The positron is the antiparticle or the antimatter counterpart of the electron. ... In the field of particle physics Belle Experiment is an international collaboration of more than 400 physicists and engineers investigating CP-violation effects using the Belle particle detector at the High Energy Accelerator Research Organisation (KEK) in Tsukuba, Ibaraki Prefecture, Japan. ...

It also contains the Accelerator Test Facility (ATF) and was the source of the neutrinos studied in the K2K experiment. The Accelerator Test Facility (ATF) is a test accelerator in the KEK laboratory in Tsukuba, Japan. ... The neutrino is an elementary particle. ... Super-Kamiokande, or Super-K for short, is a neutrino observatory in Japan. ...

KEK is also associated in the J-PARC proton accelerator under construction in Tokaimura. J-PARC, Japan Proton Accelerator Research Complex, is a joint project between KEK and JAEA and will be located at the Tokai campus of JAEA. J-PARC aims for the high intensity frontier for materials and life sciences, and nuclear and particle physics. ... Tōkai (東海村; -mura) is a village located in Naka District, Ibaraki, Japan. ...

Coordinates: 36°08′55″N, 140°04′37″E Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ...

External links

• http://www.kek.jp/intra-e/index.html