99.9 KEKB Radio, a Townsquare Media station, plays the best country music in Grand Junction, Colorado.

高能加速器研究机构（High Energy Accelerator Research Organization，简称 KEK）原为隶属于日本文部省的国家实验室，于2004年法人化后，隶属于日本大学共同利用机关法人，为高能物理学与加速器科学的综合研究机构，世界顶级科学研究中心计划成员。KEK最早是在1997年4月1日，由原来的高能物理研究所，与 ...

KEKB accelerator. Purpose and Vision KEKB is an electron-positron collider aimed at experimental verification of the Kobayashi-Maskawa theory of CP-violation.

质子同步加速器（PS） 1974年12月，KEK质子同步加速器的增强器竣工，并将质子加速到500 MeV。 1976年3月，质子同步加速器完工，第一个质子束流在主环中被加速到设计的能量8 GeV.同年12月，质子被加速11.8 GeV。

Listen live to 99.9 KEKB online for free.

2020年6月15日，日本高能加速器研究中心(KEK)的SuperKEKB对撞机取得了2.226×1034 cm-2s-1的瞬时亮度。该亮度刷新了此前由欧洲核子研究中心(CERN)的大型强子对撞机(LHC)于2018年创造的2.14 ×1034 cm-2s-1的记录。6月21日， SuperKEKB对撞机亮度进一步提高，达到2.40×1034 cm-2s-1的瞬时亮度。

Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

A schematic of the KEKB accelerator complex. 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located at the KEK (High Energy Accelerator Research Organisation) in Tsukuba, Ibaraki Prefecture, Japan.It has been superseded by its upgrade, the SuperKEKB accelerator (located at the same site).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.

2003年2月21日 · KEKB is a two-ring, asymmetric-energy, electron–positron collider and is aimed at producing copious B and anti-B mesons as in a factory. The design luminosity of KEKB is 10 34 cm −2 s −1, which is more than one order of magnitude higher than the maximum luminosity ever achieved by electron–positron colliders before the advent of B-factories.Two 3016 m long rings, an 8-GeV electron ring ...

SuperKEKB accelerator. Purpose and Vision SuperKEKB is the upgrade of KEKB to increase the luminosity 40 times, to 8 x 10 35 cm-2 s-1.The construction started in 2010 and will have the first beam in early 2015 in the collider rings.