|
Accession number;99A1045366
|
| Title;Present Status of KEKB. |
| Author;
KUROKAWA S
(Kek, High Energy Accelerator Res. Organization)
|
Journal Title;Proc Symp Accel Sci Technol
|
Journal Code:F0512B
|
ISSN:0914-2789
|
|
VOL.12th;NO.;PAGE.1-3(1999)
|
| Figure&Table&Reference;FIG.3, TBL.1, REF.4 |
| Pub. Country;Japan |
| Language;English |
| Abstract;KEKB, a high-luminosity, asymmetric-energy, two-ring, electron-positron collider aimed at B-physics was completed by the end of November 1998 and the commissioning of the accelerator took place from December 1st to April 19th with the BELLE detector waiting outside the interaction point. The maximum stored current reached 514mA in the electron ring and 542mA in the positron ring. BELLE detector then had been rolled in to the interaction point and the operation of the full KEKB started on May 24th. After the first successful beam collision on June 1st and 2nd with a luminosity of 1.5*1030cm-2s-1 the luminosity of KEKB increased step by step and finally reached 3*1032cm-2s-1 on August 4th a few hours before the start of the long summer shutdown. The integrated luminosity from June-August run amounted to 25/pb. During the summer shutdown we will modify the vacuum system near the interaction to reduce beam background to BELLE. The operation will resume in mid October and continue until the end of June 2000 with some break around New Year. (author abst.) |
|
|
|
Related Articles;
|
