KEKB status and plans

The Japanese B-Factory project at KEK (KEKB) was approved by the Japanese government in 1994 as a five-year project and the construction of accelerator and detector started in April 1994. KEKB is an 8/spl times/3.5 GeV, two-ring, electron-positron collider in the existing TRISTAN tunnel. The luminosity goal is 10/sup 34/ cm/sup -2/ s/sup -1/. KEKB has one interaction point where electrons and positrons collide at a finite angle of /spl plusmn/11 mad. The BELLE detector will be installed around this interaction point. KEKB will be commissioned in JFY 1998.