KEKB Ring 3km Circumference
KEKB may refer to: * KEKB (accelerator) * KEKB (FM) KEKB is a radio station serving Grand Junction, Colorado and its vicinity with a country music format. This station broadcasts on FM frequency 99.9 MHz and is under ownership of Townsquare Media Townsquare Media, Inc. (formerly Regent Co ...

KEKB (accelerator)
KEKB was a particle accelerator used in the Belle experiment to study CP violation. KEKB was located at the ''KEK'' (''High Energy Accelerator Research Organisation'') in Tsukuba, Ibaraki Prefecture, Japan. It has been superseded by its upgrade, the SuperKEKB accelerator (located at the same site). The SuperKEKB is a luminosity upgrade of KEKB. SuperKEKB had its first particle collisions in 2018. The SuperKEKB accelerator produces particle beams for the Belle II experiment, which is an upgrade of the Belle experiment (located at the same site as Belle). The Belle experiments studied b-quark hadrons to research CP violation. KEKB was called a B-factory for its copious production of B-mesons which provide a golden mode to study and measure the CP violation due to its property of decaying into other lighter mesons. KEKB was basically an asymmetric electron–positron collider, with electrons having the energy of 8 GeV and positrons having the energy of 3.5 GeV, giving 10.58 GeV c ...
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