Updated on March 21, 2026
Operation Log
Past Operation History
Records
- Peak luminosity 5.28 x1034 (cm-2s-1), May 30, Swing, 2026
- Belle II HV ON
| Parameter | LER | HER | Unit |
|---|
| Beam Current | 1590 | 1244 | mA |
| Number of Bunches | 2053 | |
| Bunch Current | 0.775 | 0.606 | mA |
| Beam-Beam Parameter ξy | 0.034 | 0.025 | |
| Σy* | 0.355 | μm |
| σy* | 0.251 | μm |
| Bunch Length σz | 5.3 | 5.7 | mm |
| Tunes (x/y) | 44.538 / 46.585 | 45.531 / 43.607 | |
| Specific Luminosity (x1031) | 5.5 | cm-2s-1/mA2 |
| Luminosity (x1034) | 5.3 | cm-2s-1
|
| Integrated Luminosity |
Recorded |
Date |
Delivered |
Date |
| Shift (pb-1) |
1249.2 |
May 27, Day, 2026 |
1368.5 |
May 27, Day, 2026 |
| 1 days (fb-1) |
3.499 |
March 27, 2026 |
3.818 |
March 27, 2026 |
| 7 days (fb-1) |
21.775 |
May 22 - May 28, 2026 |
23.813 |
May 22 - May 28, 2026 |
Manual
