摘要
On late afternoon July 19, 2008, researchers at the CAS Institute of High Energy Physics (IHEP) in Beijing produced the first collisions in the upgraded Beijing Electron-Positron Collider (BEPCII).The feat was observed in the brand-new associated detector, Beijing Electron Spectrometer III (BESIII). Although careful and separate tests have been conducted to the two devices,
On late afternoon July 19, 2008, researchers at the CAS Institute of High Energy Physics （IHEP） in Beijing produced the first collisions in the upgraded Beijing Electron-Positron Collider （BEPCII）.The feat was observed in the brand-new associated detector,
